FontBakery Check Report

If you think a check is flawed or have an idea for a check, please file an issue at https://github.com/fonttools/fontbakery/issues and remember to include a pointer to the repo and branch you're checking.

Summary

💥 ERROR	☠ FATAL	🔥 FAIL	⚠️ WARN	⏩ SKIP	ℹ️ INFO	✅ PASS
0	0	5	13	66	7	155
0%	0%	2%	5%	27%	3%	63%

Meaning of check results:

💥 An ERROR is something wrong with FontBakery itself, possibly a bug.
☠ A FATAL is an extremely severe issue that must be addressed immediately.
🔥 A FAIL is a problem with the font that must be fixed.
⚠️ A WARN is something that you should consider addressing.
ℹ️ An INFO result simply prints something useful. Typically stats.
✅ A PASS means the font looks good for the given checking routine.
⏩ And a SKIP happens when the check does not apply to the given font.

If you get ERRORs, please help us improve the tool by reporting them at our issue tracker.

(but other kinds of bug reports and/or feature requests are also always welcome, of course!)

FontBakery version: 0.12.10

Universal Profile Checks

🔥🔥⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩ℹ️

Check accent of Lcaron, dcaron, lcaron, tcaron

Check ID: <FontBakeryCheck:com.google.fonts/check/alt_caron>

Check that glyph for U+0675 ARABIC LETTER HIGH HAMZA is not a mark.

Check ID: <FontBakeryCheck:com.google.fonts/check/arabic_high_hamza>

Check that Arabic spacing symbols U+FBB2–FBC1 aren't classified as marks.

Check ID: <FontBakeryCheck:com.google.fonts/check/arabic_spacing_symbols>

Ensure the font supports case swapping for all its glyphs.

Check ID: <FontBakeryCheck:com.google.fonts/check/case_mapping>

Does the font contain chws and vchw features?

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_chws_feature>

Check if each glyph has the recommended amount of contours.

Check ID: <FontBakeryCheck:com.google.fonts/check/contour_count>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
This check inspects the glyph outlines and detects the total number of contours in each of them. The expected values are infered from the typical ammounts of contours observed in a large collection of reference font families. The divergences listed below may simply indicate a significantly different design on some of your glyphs. On the other hand, some of these may flag actual bugs in the font such as glyphs mapped to an incorrect codepoint. Please consider reviewing the design and codepoint assignment of these to make sure they are correct.

The following glyphs do not have the recommended number of contours:
```
- Glyph name: aogonek	Contours detected: 3	Expected: 2

- Glyph name: Uogonek	Contours detected: 2	Expected: 1

- Glyph name: uogonek	Contours detected: 2	Expected: 1

- Glyph name: Uogonek	Contours detected: 2	Expected: 1

- Glyph name: aogonek	Contours detected: 3	Expected: 2

- Glyph name: uogonek	Contours detected: 2	Expected: 1
```
[code: contour-count]

Checking all files are in the same directory.

Check ID: <FontBakeryCheck:com.google.fonts/check/family/single_directory>

Each font in a family must have the same set of vertical metrics values.

Check ID: <FontBakeryCheck:com.google.fonts/check/family/vertical_metrics>

Checking OS/2 usWinAscent & usWinDescent.

Check ID: <FontBakeryCheck:com.google.fonts/check/family/win_ascent_and_descent>

🔥 NotoSerifTangut-Regular.ttf

🔥 FAIL
OS/2.usWinAscent value should be equal or greater than 979, but got 856 instead
[code: ascent]
🔥 FAIL
OS/2.usWinDescent value should be equal or greater than 278, but got 150 instead
[code: descent]

Do we have the latest version of FontBakery installed?

Check ID: <FontBakeryCheck:com.google.fonts/check/fontbakery_version>

Ensure that the font can be rasterized by FreeType.

Check ID: <FontBakeryCheck:com.adobe.fonts/check/freetype_rasterizer>

Ensure no GPOS7 lookups are present.

Check ID: <FontBakeryCheck:com.google.fonts/check/gpos7>

EXPERIMENTAL CHECK - Since 2024/Jun/10
Ensure 'smcp' (small caps) lookups are defined before ligature lookups in the 'GSUB' table.

Check ID: <FontBakeryCheck:com.google.fonts/check/gsub/smallcaps_before_ligatures>

Detect any interpolation issues in the font.

Check ID: <FontBakeryCheck:com.google.fonts/check/interpolation_issues>

Check that legacy accents aren't used in composite glyphs.

Check ID: <FontBakeryCheck:com.google.fonts/check/legacy_accents>

Checking Vertical Metric Linegaps.

Check ID: <FontBakeryCheck:com.google.fonts/check/linegaps>

Font contains '.notdef' as its first glyph?

Check ID: <FontBakeryCheck:com.google.fonts/check/mandatory_glyphs>

Check math signs have the same width.

Check ID: <FontBakeryCheck:com.google.fonts/check/math_signs_width>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
The most common width is 562 among a set of 4 math glyphs. The following math glyphs have a different width, though:

Width = 559: multiply, divide

Width = 310: minus
[code: width-outliers]

Name table records must not have trailing spaces.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/trailing_spaces>

Checking OS/2 Metrics match hhea Metrics.

Check ID: <FontBakeryCheck:com.google.fonts/check/os2_metrics_match_hhea>

Checking with ots-sanitize.

Check ID: <FontBakeryCheck:com.google.fonts/check/ots>

Font contains all required tables?

Check ID: <FontBakeryCheck:com.google.fonts/check/required_tables>

Ensure indic fonts have the Indian Rupee Sign glyph.

Check ID: <FontBakeryCheck:com.google.fonts/check/rupee>

Font has the proper sfntVersion value?

Check ID: <FontBakeryCheck:com.adobe.fonts/check/sfnt_version>

Does the font contain a soft hyphen?

Check ID: <FontBakeryCheck:com.google.fonts/check/soft_hyphen>

Checking STAT table entries in static fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/STAT_in_statics>

Check correctness of STAT table strings

Check ID: <FontBakeryCheck:com.google.fonts/check/STAT_strings>

EXPERIMENTAL CHECK - Since 2024/Jun/04
Check tabular widths don't have kerning.

Check ID: <FontBakeryCheck:com.google.fonts/check/tabular_kerning>

Ensure component transforms do not perform scaling or rotation.

Check ID: <FontBakeryCheck:com.google.fonts/check/transformed_components>

EXPERIMENTAL CHECK - Since 2024/Jul/17
Checking that the typoAscender exceeds the yMax of the /Agrave.

Check ID: <FontBakeryCheck:com.arrowtype.fonts/check/typoascender_exceeds_Agrave>

🔥 NotoSerifTangut-Regular.ttf

🔥 FAIL
OS/2.sTypoAscender value should be greater than 965, but got 856 instead
[code: typoAscender]

Font contains unique glyph names?

Check ID: <FontBakeryCheck:com.google.fonts/check/unique_glyphnames>

Check font contains no unreachable glyphs

Check ID: <FontBakeryCheck:com.google.fonts/check/unreachable_glyphs>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
The following glyphs could not be reached by codepoint or substitution rules:
```
- glyph1

- glyph2
```
[code: unreachable-glyphs]

Are there unwanted tables?

Check ID: <FontBakeryCheck:com.google.fonts/check/unwanted_tables>

Glyph names are all valid?

Check ID: <FontBakeryCheck:com.google.fonts/check/valid_glyphnames>

Font has proper whitespace glyph names?

Check ID: <FontBakeryCheck:com.google.fonts/check/whitespace_glyphnames>

Font contains glyphs for whitespace characters?

Check ID: <FontBakeryCheck:com.google.fonts/check/whitespace_glyphs>

Whitespace glyphs have ink?

Check ID: <FontBakeryCheck:com.google.fonts/check/whitespace_ink>

Space and non-breaking space have the same width?

Check ID: <FontBakeryCheck:com.google.fonts/check/whitespace_widths>

Article Checks

⚠️

Validate size, and resolution of article images, and ensure article page has minimum length and includes visual assets.

Check ID: <FontBakeryCheck:com.google.fonts/check/article/images>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
Article page is too short!
[code: length-requirements-not-met]
⚠️ WARN
Article page lacks visual assets.
[code: missing-visual-asset]
✅ PASS
ok

Metadata Checks

⚠️⏩⏩⏩⏩ℹ️

Does METADATA.pb copyright field contain broken links?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/broken_links>

METADATA.pb: Font styles are named canonically?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/canonical_style_names>

METADATA.pb: Check that font weight has a canonical value.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/canonical_weight_value>

Check samples can be rendered.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/can_render_samples>

Ensure METADATA.pb category field is valid.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/category>

Check if category on METADATA.pb matches what can be inferred from the family name.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/category_hints>

Validate VF axes match the ones declared on METADATA.pb.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/consistent_axis_enumeration>

METADATA.pb: Check URL on copyright string is the same as in repository_url field.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/consistent_repo_urls>

METADATA.pb: Copyright notice is the same in all fonts?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/copyright>

EXPERIMENTAL CHECK - Since 2024/May/22
Validate 'date_added' field on METADATA.pb.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/date_added>

METADATA.pb: Designers are listed correctly on the Google Fonts catalog?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/designer_profiles>

Multiple values in font designer field in METADATA.pb must be separated by commas.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/designer_values>

At least one designer is declared in METADATA.pb

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/empty_designer>

Ensure METADATA.pb does not use escaped strings.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/escaped_strings>

Check font family directory name.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/family_directory_name>

Check that METADATA.pb family values are all the same.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/familyname>

METADATA.pb: Font filenames match font.filename entries?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/filenames>

Validate METADATA.pb axes values are within gf_axisregistry bounds.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/gf_axisregistry_bounds>

Validate METADATA.pb axes tags are defined in gf_axisregistry.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/gf_axisregistry_valid_tags>

Ensure there is a regular style defined in METADATA.pb.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/has_regular>

Check METADATA.pb includes production subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/includes_production_subsets>

Check METADATA.pb file only contains a single CJK subset.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/single_cjk_subset>

METADATA.pb license is "APACHE2", "UFL" or "OFL"?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/license>

METADATA.pb font.filename and font.post_script_name fields have equivalent values?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/match_filename_postscript>

METADATA.pb font.full_name and font.post_script_name fields have equivalent values ?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/match_fullname_postscript>

METADATA.pb: Check font name is the same as family name.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/match_name_familyname>

METADATA.pb weight matches postScriptName for static fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/match_weight_postscript>

METADATA.pb should contain at least "menu" and "latin" subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/menu_and_latin>

METADATA.pb: Validate family.minisite_url field.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/minisite_url>

METADATA.pb font.name and font.full_name fields match the values declared on the name table?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/family_and_full_names>

METADATA.pb font.name value should be same as the family name declared on the name table.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/font_name>

Checks METADATA.pb font.post_script_name matches postscript name declared on the name table.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/nameid/post_script_name>

Check METADATA.pb font weights are correct.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/os2_weightclass>

Check METADATA.pb parse correctly.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/parses>

METADATA.pb: Check for primary_script

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/primary_script>

METADATA.pb: Regular should be 400.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/regular_is_400>

Copyright notice on METADATA.pb should not contain 'Reserved Font Name'.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/reserved_font_name>

METADATA.pb subsets should be alphabetically ordered.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/subsets_order>

Ensure METADATA.pb lists all font binaries.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/undeclared_fonts>

METADATA.pb: check if fonts field only has unique "full_name" values.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unique_full_name_values>

METADATA.pb: check if fonts field only contains unique style:weight pairs.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unique_weight_style_pairs>

Check for codepoints not covered by METADATA subsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unreachable_subsetting>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
The following codepoints supported by the font are not covered by any subsets defined in the font's metadata file, and will never be served. You can solve this by either manually adding additional subset declarations to METADATA.pb, or by editing the glyphset definitions.
- U+02C7 CARON: try adding one of: canadian-aboriginal, yi, tifinagh
- U+02C9 MODIFIER LETTER MACRON: not included in any glyphset definition
- U+02D8 BREVE: try adding one of: canadian-aboriginal, yi
- U+02D9 DOT ABOVE: try adding one of: canadian-aboriginal, yi
- U+02DB OGONEK: try adding one of: canadian-aboriginal, yi
- U+02DD DOUBLE ACUTE ACCENT: not included in any glyphset definition
- U+0302 COMBINING CIRCUMFLEX ACCENT: try adding one of: coptic, cherokee, tifinagh, math
- U+0306 COMBINING BREVE: try adding one of: old-permic, tifinagh
- U+0307 COMBINING DOT ABOVE: try adding one of: math, tifinagh, syriac, tai-le, canadian-aboriginal, coptic, old-permic, malayalam
- U+030A COMBINING RING ABOVE: try adding syriac
- U+030B COMBINING DOUBLE ACUTE ACCENT: try adding one of: osage, cherokee
- U+030C COMBINING CARON: try adding one of: cherokee, tai-le
- U+0312 COMBINING TURNED COMMA ABOVE: not included in any glyphset definition
- U+0326 COMBINING COMMA BELOW: not included in any glyphset definition
- U+0327 COMBINING CEDILLA: not included in any glyphset definition
- U+0328 COMBINING OGONEK: not included in any glyphset definition
- U+2003 EM SPACE: try adding nushu
- U+2FF0 IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO RIGHT: not included in any glyphset definition
- U+2FF1 IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO BELOW: not included in any glyphset definition
- U+2FF2 IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO MIDDLE AND RIGHT: not included in any glyphset definition
- U+2FF3 IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO MIDDLE AND BELOW: not included in any glyphset definition
- U+2FF4 IDEOGRAPHIC DESCRIPTION CHARACTER FULL SURROUND: not included in any glyphset definition
- U+2FF5 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM ABOVE: not included in any glyphset definition
- U+2FF6 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM BELOW: not included in any glyphset definition
- U+2FF7 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LEFT: not included in any glyphset definition
- U+2FF8 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER LEFT: not included in any glyphset definition
- U+2FF9 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER RIGHT: not included in any glyphset definition
- U+2FFA IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER LEFT: not included in any glyphset definition
- U+2FFB IDEOGRAPHIC DESCRIPTION CHARACTER OVERLAID: not included in any glyphset definition
- U+3000 IDEOGRAPHIC SPACE: try adding one of: chinese-hongkong, phags-pa, chinese-traditional, chinese-simplified, nushu, japanese, yi
- U+3001 IDEOGRAPHIC COMMA: try adding one of: chinese-hongkong, phags-pa, chinese-traditional, chinese-simplified, tai-le, japanese, yi, mongolian
- U+3002 IDEOGRAPHIC FULL STOP: try adding one of: chinese-hongkong, phags-pa, chinese-traditional, chinese-simplified, tai-le, nushu, japanese, yi, mongolian
- U+303E IDEOGRAPHIC VARIATION INDICATOR: not included in any glyphset definition
- U+4E00 CJK UNIFIED IDEOGRAPH-4E00: try adding one of: chinese-hongkong, chinese-traditional, chinese-simplified, nushu, japanese
- U+4F53 CJK UNIFIED IDEOGRAPH-4F53: try adding one of: chinese-simplified, chinese-hongkong, japanese, chinese-traditional
- U+590F CJK UNIFIED IDEOGRAPH-590F: try adding one of: chinese-simplified, chinese-hongkong, japanese, chinese-traditional
- U+5B8B CJK UNIFIED IDEOGRAPH-5B8B: try adding one of: chinese-simplified, chinese-hongkong, japanese, chinese-traditional
- U+897F CJK UNIFIED IDEOGRAPH-897F: try adding one of: chinese-simplified, chinese-hongkong, japanese, chinese-traditional
- U+9AD4 CJK UNIFIED IDEOGRAPH-9AD4: try adding one of: chinese-simplified, chinese-hongkong, japanese, chinese-traditional
- U+FE10 PRESENTATION FORM FOR VERTICAL COMMA: not included in any glyphset definition
- U+FE11 PRESENTATION FORM FOR VERTICAL IDEOGRAPHIC COMMA: not included in any glyphset definition
- U+FE12 PRESENTATION FORM FOR VERTICAL IDEOGRAPHIC FULL STOP: try adding nushu
- U+FE13 PRESENTATION FORM FOR VERTICAL COLON: not included in any glyphset definition
- U+FE14 PRESENTATION FORM FOR VERTICAL SEMICOLON: not included in any glyphset definition
- U+FE15 PRESENTATION FORM FOR VERTICAL EXCLAMATION MARK: not included in any glyphset definition
- U+FE16 PRESENTATION FORM FOR VERTICAL QUESTION MARK: not included in any glyphset definition
- U+FF01 FULLWIDTH EXCLAMATION MARK: try adding one of: yi, chinese-simplified, japanese
- U+FF02 FULLWIDTH QUOTATION MARK: try adding one of: yi, chinese-simplified, japanese
- U+FF03 FULLWIDTH NUMBER SIGN: try adding one of: chinese-simplified, japanese
- U+FF04 FULLWIDTH DOLLAR SIGN: try adding one of: chinese-simplified, japanese
- U+FF05 FULLWIDTH PERCENT SIGN: try adding one of: chinese-simplified, japanese
- U+FF06 FULLWIDTH AMPERSAND: try adding one of: chinese-simplified, japanese
- U+FF07 FULLWIDTH APOSTROPHE: try adding one of: chinese-simplified, japanese
- U+FF08 FULLWIDTH LEFT PARENTHESIS: try adding one of: yi, chinese-simplified, japanese
- U+FF09 FULLWIDTH RIGHT PARENTHESIS: try adding one of: yi, chinese-simplified, japanese
- U+FF0A FULLWIDTH ASTERISK: try adding one of: chinese-simplified, japanese
- U+FF0B FULLWIDTH PLUS SIGN: try adding one of: chinese-simplified, japanese
- U+FF0C FULLWIDTH COMMA: try adding one of: yi, chinese-simplified, japanese
- U+FF0D FULLWIDTH HYPHEN-MINUS: try adding one of: chinese-simplified, japanese
- U+FF0E FULLWIDTH FULL STOP: try adding one of: yi, chinese-simplified, japanese
- U+FF0F FULLWIDTH SOLIDUS: try adding one of: yi, chinese-simplified, japanese
- U+FF10 FULLWIDTH DIGIT ZERO: try adding one of: chinese-simplified, japanese
- U+FF11 FULLWIDTH DIGIT ONE: try adding one of: chinese-simplified, japanese
- U+FF12 FULLWIDTH DIGIT TWO: try adding one of: chinese-simplified, japanese
- U+FF13 FULLWIDTH DIGIT THREE: try adding one of: chinese-simplified, japanese
- U+FF14 FULLWIDTH DIGIT FOUR: try adding one of: chinese-simplified, japanese
- U+FF15 FULLWIDTH DIGIT FIVE: try adding one of: chinese-simplified, japanese
- U+FF16 FULLWIDTH DIGIT SIX: try adding one of: chinese-simplified, japanese
- U+FF17 FULLWIDTH DIGIT SEVEN: try adding one of: chinese-simplified, japanese
- U+FF18 FULLWIDTH DIGIT EIGHT: try adding one of: chinese-simplified, japanese
- U+FF19 FULLWIDTH DIGIT NINE: try adding one of: chinese-simplified, japanese
- U+FF1A FULLWIDTH COLON: try adding one of: yi, chinese-simplified, japanese
- U+FF1B FULLWIDTH SEMICOLON: try adding one of: yi, chinese-simplified, japanese
- U+FF1C FULLWIDTH LESS-THAN SIGN: try adding one of: chinese-simplified, japanese
- U+FF1D FULLWIDTH EQUALS SIGN: try adding one of: chinese-simplified, japanese
- U+FF1E FULLWIDTH GREATER-THAN SIGN: try adding one of: chinese-simplified, japanese
- U+FF1F FULLWIDTH QUESTION MARK: try adding one of: yi, chinese-simplified, japanese
- U+FF20 FULLWIDTH COMMERCIAL AT: try adding one of: chinese-simplified, japanese
- U+FF21 FULLWIDTH LATIN CAPITAL LETTER A: try adding one of: chinese-simplified, japanese
- U+FF22 FULLWIDTH LATIN CAPITAL LETTER B: try adding one of: chinese-simplified, japanese
- U+FF23 FULLWIDTH LATIN CAPITAL LETTER C: try adding one of: chinese-simplified, japanese
- U+FF24 FULLWIDTH LATIN CAPITAL LETTER D: try adding one of: chinese-simplified, japanese
- U+FF25 FULLWIDTH LATIN CAPITAL LETTER E: try adding one of: chinese-simplified, japanese
- U+FF26 FULLWIDTH LATIN CAPITAL LETTER F: try adding one of: chinese-simplified, japanese
- U+FF27 FULLWIDTH LATIN CAPITAL LETTER G: try adding one of: chinese-simplified, japanese
- U+FF28 FULLWIDTH LATIN CAPITAL LETTER H: try adding one of: chinese-simplified, japanese
- U+FF29 FULLWIDTH LATIN CAPITAL LETTER I: try adding one of: chinese-simplified, japanese
- U+FF2A FULLWIDTH LATIN CAPITAL LETTER J: try adding one of: chinese-simplified, japanese
- U+FF2B FULLWIDTH LATIN CAPITAL LETTER K: try adding one of: chinese-simplified, japanese
- U+FF2C FULLWIDTH LATIN CAPITAL LETTER L: try adding one of: chinese-simplified, japanese
- U+FF2D FULLWIDTH LATIN CAPITAL LETTER M: try adding one of: chinese-simplified, japanese
- U+FF2E FULLWIDTH LATIN CAPITAL LETTER N: try adding one of: chinese-simplified, japanese
- U+FF2F FULLWIDTH LATIN CAPITAL LETTER O: try adding one of: chinese-simplified, japanese
- U+FF30 FULLWIDTH LATIN CAPITAL LETTER P: try adding one of: chinese-simplified, japanese
- U+FF31 FULLWIDTH LATIN CAPITAL LETTER Q: try adding one of: chinese-simplified, japanese
- U+FF32 FULLWIDTH LATIN CAPITAL LETTER R: try adding one of: chinese-simplified, japanese
- U+FF33 FULLWIDTH LATIN CAPITAL LETTER S: try adding one of: chinese-simplified, japanese
- U+FF34 FULLWIDTH LATIN CAPITAL LETTER T: try adding one of: chinese-simplified, japanese
- U+FF35 FULLWIDTH LATIN CAPITAL LETTER U: try adding one of: chinese-simplified, japanese
- U+FF36 FULLWIDTH LATIN CAPITAL LETTER V: try adding one of: chinese-simplified, japanese
- U+FF37 FULLWIDTH LATIN CAPITAL LETTER W: try adding one of: chinese-simplified, japanese
- U+FF38 FULLWIDTH LATIN CAPITAL LETTER X: try adding one of: chinese-simplified, japanese
- U+FF39 FULLWIDTH LATIN CAPITAL LETTER Y: try adding one of: chinese-simplified, japanese
- U+FF3A FULLWIDTH LATIN CAPITAL LETTER Z: try adding one of: chinese-simplified, japanese
- U+FF3B FULLWIDTH LEFT SQUARE BRACKET: try adding one of: yi, chinese-simplified, japanese
- U+FF3C FULLWIDTH REVERSE SOLIDUS: try adding one of: chinese-simplified, japanese
- U+FF3D FULLWIDTH RIGHT SQUARE BRACKET: try adding one of: yi, chinese-simplified, japanese
- U+FF3E FULLWIDTH CIRCUMFLEX ACCENT: try adding one of: chinese-simplified, japanese
- U+FF3F FULLWIDTH LOW LINE: try adding one of: chinese-simplified, japanese
- U+FF40 FULLWIDTH GRAVE ACCENT: try adding one of: chinese-simplified, japanese
- U+FF41 FULLWIDTH LATIN SMALL LETTER A: try adding one of: chinese-simplified, japanese
- U+FF42 FULLWIDTH LATIN SMALL LETTER B: try adding one of: chinese-simplified, japanese
- U+FF43 FULLWIDTH LATIN SMALL LETTER C: try adding one of: chinese-simplified, japanese
- U+FF44 FULLWIDTH LATIN SMALL LETTER D: try adding one of: chinese-simplified, japanese
- U+FF45 FULLWIDTH LATIN SMALL LETTER E: try adding one of: chinese-simplified, japanese
- U+FF46 FULLWIDTH LATIN SMALL LETTER F: try adding one of: chinese-simplified, japanese
- U+FF47 FULLWIDTH LATIN SMALL LETTER G: try adding one of: chinese-simplified, japanese
- U+FF48 FULLWIDTH LATIN SMALL LETTER H: try adding one of: chinese-simplified, japanese
- U+FF49 FULLWIDTH LATIN SMALL LETTER I: try adding one of: chinese-simplified, japanese
- U+FF4A FULLWIDTH LATIN SMALL LETTER J: try adding japanese
- U+FF4B FULLWIDTH LATIN SMALL LETTER K: try adding one of: chinese-simplified, japanese
- U+FF4C FULLWIDTH LATIN SMALL LETTER L: try adding one of: chinese-simplified, japanese
- U+FF4D FULLWIDTH LATIN SMALL LETTER M: try adding one of: chinese-simplified, japanese
- U+FF4E FULLWIDTH LATIN SMALL LETTER N: try adding one of: chinese-simplified, japanese
- U+FF4F FULLWIDTH LATIN SMALL LETTER O: try adding one of: chinese-simplified, japanese
- U+FF50 FULLWIDTH LATIN SMALL LETTER P: try adding one of: chinese-simplified, japanese
- U+FF51 FULLWIDTH LATIN SMALL LETTER Q: try adding one of: chinese-simplified, japanese
- U+FF52 FULLWIDTH LATIN SMALL LETTER R: try adding one of: chinese-simplified, japanese
- U+FF53 FULLWIDTH LATIN SMALL LETTER S: try adding one of: chinese-simplified, japanese
- U+FF54 FULLWIDTH LATIN SMALL LETTER T: try adding one of: chinese-simplified, japanese
- U+FF55 FULLWIDTH LATIN SMALL LETTER U: try adding one of: chinese-simplified, japanese
- U+FF56 FULLWIDTH LATIN SMALL LETTER V: try adding one of: chinese-simplified, japanese
- U+FF57 FULLWIDTH LATIN SMALL LETTER W: try adding one of: chinese-simplified, japanese
- U+FF58 FULLWIDTH LATIN SMALL LETTER X: try adding one of: chinese-simplified, japanese
- U+FF59 FULLWIDTH LATIN SMALL LETTER Y: try adding one of: chinese-simplified, japanese
- U+FF5A FULLWIDTH LATIN SMALL LETTER Z: try adding japanese
- U+FF5B FULLWIDTH LEFT CURLY BRACKET: try adding one of: yi, math, chinese-simplified, japanese
- U+FF5C FULLWIDTH VERTICAL LINE: try adding one of: yi, chinese-simplified, japanese
- U+FF5D FULLWIDTH RIGHT CURLY BRACKET: try adding one of: yi, math, chinese-simplified, japanese
- U+FF5E FULLWIDTH TILDE: try adding one of: yi, chinese-simplified
- U+1F6D3 STUPA: try adding symbols
- U+1F6D4 PAGODA: try adding symbols
Or you can add the above codepoints to one of the subsets supported by the font: latin, latin-ext, menu, tangut
[code: unreachable-subsetting]

Check for METADATA subsets with zero support.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/unsupported_subsets>

METADATA.pb font.filename field contains font name in right format?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/valid_filename_values>

METADATA.pb font.full_name field contains font name in right format?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/valid_full_name_values>

Check name ID 25 to end with "Italic" for Italic VFs.

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/valid_nameid25>

METADATA.pb font.post_script_name field contains font name in right format?

Check ID: <FontBakeryCheck:com.google.fonts/check/metadata/valid_post_script_name_values>

Glyphset Checks

🔥

Shapes languages in all GF glyphsets.

Check ID: <FontBakeryCheck:com.google.fonts/check/glyphsets/shape_languages>

🔥 NotoSerifTangut-Regular.ttf

🔥 FAIL
GF_Latin_Core glyphset:

Language FAIL messages

nl_Latn (Dutch) Shaper didn't attach acutecomb to J

^ Shaper didn't attach acutecomb to j

[code: failed-language-shaping]

Language	FAIL messages
nl_Latn (Dutch)	Shaper didn't attach acutecomb to J
^	Shaper didn't attach acutecomb to j

Description Checks

🔥🔥⚠️⚠️⏩

Does DESCRIPTION file contain broken links?

Check ID: <FontBakeryCheck:com.google.fonts/check/description/broken_links>

🔥 NotoSerifTangut-Regular.ttf

🔥 FAIL
The following links are broken in the article file: https://scriptsource.org/scr/Tang (status code: 403)
[code: broken-links]

DESCRIPTION.en_us.html should end in a linebreak.

Check ID: <FontBakeryCheck:com.google.fonts/check/description/eof_linebreak>

⚠️ METADATA.pb

⚠️ WARN
The last characther on DESCRIPTION.en_us.html is not a line-break. Please add it.
[code: missing-eof-linebreak]

On a family update, the DESCRIPTION.en_us.html file should ideally also be updated.

Check ID: <FontBakeryCheck:com.google.fonts/check/description/family_update>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
The DESCRIPTION.en_us.html file in this family has not changed in comparison to the latest font release on the google/fonts github repo. Please consider mentioning note-worthy improvements made to the family recently.
[code: description-not-updated]

Does DESCRIPTION file contain a upstream Git repo URL?

Check ID: <FontBakeryCheck:com.google.fonts/check/description/git_url>

Check the description doesn't contain unsupported html elements

Check ID: <FontBakeryCheck:com.google.fonts/check/description/has_unsupported_elements>

DESCRIPTION.en_us.html must have more than 200 bytes.

Check ID: <FontBakeryCheck:com.google.fonts/check/description/min_length>

🔥 METADATA.pb

🔥 FAIL
DESCRIPTION.en_us.html must have size larger than 200 bytes.
[code: too-short]

Check for presence of an ARTICLE.en_us.html file

Check ID: <FontBakeryCheck:com.google.fonts/check/description/has_article>

URLs on DESCRIPTION file must not display http(s) prefix.

Check ID: <FontBakeryCheck:com.google.fonts/check/description/urls>

Is this a proper HTML snippet?

Check ID: <FontBakeryCheck:com.google.fonts/check/description/valid_html>

Name table checks

⚠️⏩

Combined length of family and style must not exceed 32 characters.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/family_and_style_max_length>

Check family name for GF Guide compliance.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/family_name_compliance>

Check copyright namerecords match license file.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/license>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
Please consider updating the url from 'https://scripts.sil.org/OFL' to 'https://openfontlicense.org'.
[code: old-url]

License URL matches License text on name table?

Check ID: <FontBakeryCheck:com.google.fonts/check/name/license_url>

Name table entries should not contain line-breaks.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/line_breaks>

Name table strings must not contain the string 'Reserved Font Name'.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/rfn>

Substitute copyright, registered and trademark symbols in name table entries.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/unwanted_chars>

Shaping Checks

⚠️⚠️⏩⏩⏩

Check that texts shape as per expectation

Check ID: <FontBakeryCheck:com.google.fonts/check/shaping/regression>

Check that no forbidden glyphs are found while shaping

Check ID: <FontBakeryCheck:com.google.fonts/check/shaping/forbidden>

Check that no collisions are found while shaping

Check ID: <FontBakeryCheck:com.google.fonts/check/shaping/collides>

Ensure dotted circle glyph is present and can attach marks.

Check ID: <FontBakeryCheck:com.google.fonts/check/dotted_circle>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
No dotted circle glyph present
[code: missing-dotted-circle]

Ensure soft_dotted characters lose their dot when combined with marks that replace the dot.

Check ID: <FontBakeryCheck:com.google.fonts/check/soft_dotted>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
The dot of soft dotted characters used in orthographies must disappear in the following strings: i̊ i̋ j̀ j́ j̃ j̄ j̈ į̀ į́ į̂ į̃ į̄ į̌

The dot of soft dotted characters should disappear in other cases, for example: ĩ ĭ i̇ ǐ i̒ ĩ̦ ĭ̦ i̦̇ i̦̊ i̦̋ ǐ̦ i̦̒ ĩ̧ ĭ̧ i̧̇ i̧̊ i̧̋ ǐ̧ i̧̒ ĵ

Your font fully covers the following languages that require the soft-dotted feature: Lithuanian (Latn, 2,357,094 speakers).

Your font does not cover the following languages that require the soft-dotted feature: Lugbara (Latn, 2,200,000 speakers), Dutch (Latn, 31,709,104 speakers), Basaa (Latn, 332,940 speakers), Zapotec (Latn, 490,000 speakers), Ejagham (Latn, 120,000 speakers), Ijo, Southeast (Latn, 2,471,000 speakers), Dan (Latn, 1,099,244 speakers), Ebira (Latn, 2,200,000 speakers), Dii (Latn, 71,000 speakers), Igbo (Latn, 27,823,640 speakers), Aghem (Latn, 38,843 speakers), Nzakara (Latn, 50,000 speakers), Mundani (Latn, 34,000 speakers), Gulay (Latn, 250,478 speakers), Ekpeye (Latn, 226,000 speakers), Sar (Latn, 500,000 speakers), Fur (Latn, 1,230,163 speakers), Ngbaka (Latn, 1,020,000 speakers), Kpelle, Guinea (Latn, 622,000 speakers), South Central Banda (Latn, 244,000 speakers), Avokaya (Latn, 100,000 speakers), Southern Kisi (Latn, 360,000 speakers), Nateni (Latn, 100,000 speakers), Navajo (Latn, 166,319 speakers), Vute (Latn, 21,000 speakers), Cicipu (Latn, 44,000 speakers), Yala (Latn, 200,000 speakers), Kom (Latn, 360,685 speakers), Belarusian (Cyrl, 10,064,517 speakers), Makaa (Latn, 221,000 speakers), Koonzime (Latn, 40,000 speakers), Ma’di (Latn, 584,000 speakers), Mfumte (Latn, 79,000 speakers), Ukrainian (Cyrl, 29,273,587 speakers), Mango (Latn, 77,000 speakers), Bete-Bendi (Latn, 100,000 speakers), Bafut (Latn, 158,146 speakers).
[code: soft-dotted]

Font File Checks

⚠️⚠️⚠️⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩⏩ℹ️ℹ️ℹ️ℹ️

Are there unwanted Apple tables?

Check ID: <FontBakeryCheck:com.google.fonts/check/aat>

Checking file is named canonically.

Check ID: <FontBakeryCheck:com.google.fonts/check/canonical_filename>

Does the font contain less than 150 CJK characters?

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_not_enough_glyphs>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
There are only 18 CJK glyphs when there needs to be at least 150 in order to support the smallest CJK writing system, Kana. The following CJK glyphs were found: ['uni2FF0', 'uni2FF1', 'uni2FF2', 'uni2FF3', 'uni2FF4', 'uni2FF5', 'uni2FF6', 'uni2FF7', 'uni2FF8', 'uni2FF9', 'uni2FFA', 'uni2FFB', 'uni4E00', 'uni4F53', 'uni590F', 'uni5B8B', 'uni897F', 'uni9AD4'] Please check that these glyphs have the correct unicodes.
[code: cjk-not-enough-glyphs]

Check font follows the Google Fonts CJK vertical metric schema

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_vertical_metrics>

Check if the vertical metrics of a CJK family are similar to the same family hosted on Google Fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/cjk_vertical_metrics_regressions>

Color layers should have a minimum brightness

Check ID: <FontBakeryCheck:com.google.fonts/check/color_cpal_brightness>

Check font has the expected color font tables.

Check ID: <FontBakeryCheck:com.google.fonts/check/colorfont_tables>

Put an empty glyph on GID 1 right after the .notdef glyph for COLRv0 fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/empty_glyph_on_gid1_for_colrv0>

EPAR table present in font?

Check ID: <FontBakeryCheck:com.google.fonts/check/epar>

Ensure files are not too large.

Check ID: <FontBakeryCheck:com.google.fonts/check/file_size>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
Font file is 5.5Mb; ideally it should be less than 1.0Mb
[code: large-font]

Copyright notices match canonical pattern in fonts

Check ID: <FontBakeryCheck:com.google.fonts/check/font_copyright>

Check font names are correct

Check ID: <FontBakeryCheck:com.google.fonts/check/font_names>

Checking OS/2 fsType does not impose restrictions.

Check ID: <FontBakeryCheck:com.google.fonts/check/fstype>

Check variable font instances

Check ID: <FontBakeryCheck:com.google.fonts/check/fvar_instances>

All name entries referenced by fvar instances exist on the name table?

Check ID: <FontBakeryCheck:com.google.fonts/check/fvar_name_entries>

Is the Grid-fitting and Scan-conversion Procedure ('gasp') table set to optimize rendering?

Check ID: <FontBakeryCheck:com.google.fonts/check/gasp>

Validate defaults on fvar table match registered fallback names in GFAxisRegistry.

Check ID: <FontBakeryCheck:com.google.fonts/check/gf_axisregistry/fvar_axis_defaults>

Check glyphs do not have components which are themselves components.

Check ID: <FontBakeryCheck:com.google.fonts/check/glyf_nested_components>

Check Google Fonts glyph coverage.

Check ID: <FontBakeryCheck:com.google.fonts/check/glyph_coverage>

Font has ttfautohint params?

Check ID: <FontBakeryCheck:com.google.fonts/check/has_ttfautohint_params>

Show hinting filesize impact.

Check ID: <FontBakeryCheck:com.google.fonts/check/hinting_impact>

PPEM must be an integer on hinted fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/integer_ppem_if_hinted>

Is there kerning info for non-ligated sequences?

Check ID: <FontBakeryCheck:com.google.fonts/check/kerning_for_non_ligated_sequences>

Are there caret positions declared for every ligature?

Check ID: <FontBakeryCheck:com.google.fonts/check/ligature_carets>

Ensure variable fonts include an avar table.

Check ID: <FontBakeryCheck:com.google.fonts/check/mandatory_avar_table>

Ensure fonts have ScriptLangTags declared on the 'meta' table.

Check ID: <FontBakeryCheck:com.google.fonts/check/meta/script_lang_tags>

⚠️ NotoSerifTangut-Regular.ttf

⚠️ WARN
This font file does not have a 'meta' table.
[code: lacks-meta-table]

Check small caps glyphs are available.

Check ID: <FontBakeryCheck:com.google.fonts/check/missing_small_caps_glyphs>

Are there non-ASCII characters in ASCII-only NAME table entries?

Check ID: <FontBakeryCheck:com.google.fonts/check/name/ascii_only_entries>

Description strings in the name table must not exceed 200 characters.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/description_max_length>

Make sure family name does not begin with a digit.

Check ID: <FontBakeryCheck:com.google.fonts/check/name/familyname_first_char>

Font has all mandatory 'name' table entries?

Check ID: <FontBakeryCheck:com.google.fonts/check/name/mandatory_entries>

Version format is correct in 'name' table?

Check ID: <FontBakeryCheck:com.google.fonts/check/name/version_format>

Ensure fonts do not contain any pre-production tables.

Check ID: <FontBakeryCheck:com.google.fonts/check/no_debugging_tables>

Font has old ttfautohint applied?

Check ID: <FontBakeryCheck:com.google.fonts/check/old_ttfautohint>

OS/2.fsSelection bit 7 (USE_TYPO_METRICS) is set in all fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/os2/use_typo_metrics>

Check font can render its own name.

Check ID: <FontBakeryCheck:com.google.fonts/check/render_own_name>

Checking direction of slnt axis angles

Check ID: <FontBakeryCheck:com.google.fonts/check/slant_direction>

Font enables smart dropout control in "prep" table instructions?

Check ID: <FontBakeryCheck:com.google.fonts/check/smart_dropout>

Check axis ordering on the STAT table.

Check ID: <FontBakeryCheck:com.google.fonts/check/STAT/axis_order>

Validate STAT particle names and values match the fallback names in GFAxisRegistry.

Check ID: <FontBakeryCheck:com.google.fonts/check/STAT/gf_axisregistry>

Ensure Stylistic Sets have description.

Check ID: <FontBakeryCheck:com.google.fonts/check/stylisticset_description>

Stricter unitsPerEm criteria for Google Fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/unitsperem_strict>

Check the OS/2 usWeightClass is appropriate for the font's best SubFamily name.

Check ID: <FontBakeryCheck:com.google.fonts/check/usweightclass>

The variable font 'wght' (Weight) axis coordinate must be 700 on the 'Bold' instance.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/bold_wght_coord>

Ensure that all variable font files have the same set of axes and axis ranges.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/consistent_axes>

Ensure VFs with duplexed axes do not vary horizontal advance.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/duplexed_axis_reflow>

Check variable font instances don't have duplicate names

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont_duplicate_instance_names>

Check a static ttf can be generated from a variable font.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/generate_static>

EXPERIMENTAL CHECK - Since 2024/Mar/27
Ensure the font's instances are in the correct order.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/instances_in_order>

Check that variable fonts have an HVAR table.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/has_HVAR>

Ensure VFs do not contain the ital axis.

Check ID: <FontBakeryCheck:com.google.fonts/check/varfont/unsupported_axes>

Checking OS/2 achVendID.

Check ID: <FontBakeryCheck:com.google.fonts/check/vendor_id>

Check font follows the Google Fonts vertical metric schema

Check ID: <FontBakeryCheck:com.google.fonts/check/vertical_metrics>

Check if the vertical metrics of a family are similar to the same family hosted on Google Fonts.

Check ID: <FontBakeryCheck:com.google.fonts/check/vertical_metrics_regressions>

There must not be VTT Talk sources in the font.

Check ID: <FontBakeryCheck:com.google.fonts/check/vttclean>

Summary

Universal Profile Checks

Check accent of Lcaron, dcaron, lcaron, tcaron

Check that glyph for U+0675 ARABIC LETTER HIGH HAMZA is not a mark.

Check that Arabic spacing symbols U+FBB2–FBC1 aren't classified as marks.

Ensure the font supports case swapping for all its glyphs.

Does the font contain chws and vchw features?

Check if each glyph has the recommended amount of contours.

Checking all files are in the same directory.

Each font in a family must have the same set of vertical metrics values.

Checking OS/2 usWinAscent & usWinDescent.

Do we have the latest version of FontBakery installed?

Ensure that the font can be rasterized by FreeType.

Ensure no GPOS7 lookups are present.

EXPERIMENTAL CHECK - Since 2024/Jun/10 Ensure 'smcp' (small caps) lookups are defined before ligature lookups in the 'GSUB' table.

Detect any interpolation issues in the font.

Check that legacy accents aren't used in composite glyphs.

Checking Vertical Metric Linegaps.

Font contains '.notdef' as its first glyph?

Check math signs have the same width.

Name table records must not have trailing spaces.

Checking OS/2 Metrics match hhea Metrics.

Checking with ots-sanitize.

Font contains all required tables?

Ensure indic fonts have the Indian Rupee Sign glyph.

Font has the proper sfntVersion value?

Does the font contain a soft hyphen?

Checking STAT table entries in static fonts.

Check correctness of STAT table strings

EXPERIMENTAL CHECK - Since 2024/Jun/04 Check tabular widths don't have kerning.

Ensure component transforms do not perform scaling or rotation.

EXPERIMENTAL CHECK - Since 2024/Jul/17 Checking that the typoAscender exceeds the yMax of the /Agrave.

Font contains unique glyph names?

Check font contains no unreachable glyphs

Are there unwanted tables?

Glyph names are all valid?

Font has **proper** whitespace glyph names?

Font contains glyphs for whitespace characters?

Whitespace glyphs have ink?

Space and non-breaking space have the same width?

Article Checks

Validate size, and resolution of article images, and ensure article page has minimum length and includes visual assets.

Metadata Checks

Does METADATA.pb copyright field contain broken links?

METADATA.pb: Font styles are named canonically?

METADATA.pb: Check that font weight has a canonical value.

Check samples can be rendered.

Ensure METADATA.pb category field is valid.

Check if category on METADATA.pb matches what can be inferred from the family name.

Validate VF axes match the ones declared on METADATA.pb.

METADATA.pb: Check URL on copyright string is the same as in repository_url field.

METADATA.pb: Copyright notice is the same in all fonts?

EXPERIMENTAL CHECK - Since 2024/May/22 Validate 'date_added' field on METADATA.pb.

METADATA.pb: Designers are listed correctly on the Google Fonts catalog?

Multiple values in font designer field in METADATA.pb must be separated by commas.

At least one designer is declared in METADATA.pb

Ensure METADATA.pb does not use escaped strings.

Check font family directory name.

Check that METADATA.pb family values are all the same.

METADATA.pb: Font filenames match font.filename entries?

Validate METADATA.pb axes values are within gf_axisregistry bounds.

Validate METADATA.pb axes tags are defined in gf_axisregistry.

Ensure there is a regular style defined in METADATA.pb.

Check METADATA.pb includes production subsets.

Check METADATA.pb file only contains a single CJK subset.

METADATA.pb license is "APACHE2", "UFL" or "OFL"?

METADATA.pb font.filename and font.post_script_name fields have equivalent values?

METADATA.pb font.full_name and font.post_script_name fields have equivalent values ?

METADATA.pb: Check font name is the same as family name.

METADATA.pb weight matches postScriptName for static fonts.

METADATA.pb should contain at least "menu" and "latin" subsets.

METADATA.pb: Validate family.minisite_url field.

METADATA.pb font.name and font.full_name fields match the values declared on the name table?

METADATA.pb font.name value should be same as the family name declared on the name table.

Checks METADATA.pb font.post_script_name matches postscript name declared on the name table.

Check METADATA.pb font weights are correct.

Check METADATA.pb parse correctly.

METADATA.pb: Check for primary_script

METADATA.pb: Regular should be 400.

Copyright notice on METADATA.pb should not contain 'Reserved Font Name'.

EXPERIMENTAL CHECK - Since 2024/Jun/10
Ensure 'smcp' (small caps) lookups are defined before ligature lookups in the 'GSUB' table.

EXPERIMENTAL CHECK - Since 2024/Jun/04
Check tabular widths don't have kerning.

EXPERIMENTAL CHECK - Since 2024/Jul/17
Checking that the typoAscender exceeds the yMax of the /Agrave.

Font has proper whitespace glyph names?

EXPERIMENTAL CHECK - Since 2024/May/22
Validate 'date_added' field on METADATA.pb.