How do I check Bulgarian Cyrillic in a website font?

A font supporting Cyrillic does not automatically prove that its Bulgarian letterforms and every required style are right for your project. Test real Bulgarian text in the actual browser, with the page marked as Bulgarian, and inspect which font file renders each section.

Prepare a useful Bulgarian specimen

Include a paragraph, navigation, a short button and a price. Add lowercase letters such as д, л, г, т and п, the character ѝ, quotation marks „ “, a dash, currency and a mixed-script company name. Test regular, medium, bold and real italic separately. Do not decide from uppercase headings alone: they can hide the differences you need to inspect.

Check language and font features

1. Choose a candidate with documented Cyrillic coverage. Sofia Sans is one starting point with Latin, Greek and Cyrillic coverage in its official description.
2. Render the specimen with the correct language metadata, such as lang="bg". Compare the result with the designer's specimen.
3. Inspect whether the selected font provides localised forms through its supported OpenType features. Do not copy a stylistic-set number from another family: the mapping may differ.
4. Use browser developer tools to check the rendered font. Missing characters can silently come from a different fallback.
5. Ask a Bulgarian reader to check the real service and form copy, including the mobile version.

Illustrative acceptance test

Suppose the heading looks consistent but the word containing ѝ uses a visibly different shape. First investigate the downloaded subset and fallback, rather than changing the spelling to avoid the character. Then check whether the bold file contains the same coverage. Approve the exact files and version, not just the family name.

What should I give the developer?

Hand over the chosen family, files, licence, supported weights, specimen and any verified local-feature settings. Include the English equivalent so line lengths can be compared. Record remaining failures instead of describing an untested family as fully multilingual. The free comparison workflow provides a repeatable next step.