Font choice for readability and speed
Good typography must stay readable, accessible, on-brand, and stable during loading.
A font affects more than visual style. It affects loading speed, CLS, readability, brand perception, and how quickly a user can make a decision on the page.
Quick answer
Choose a font by four criteria: readability, language support, loading performance, and brand fit. A beautiful but heavy or hard-to-read font lowers UX.
Selection criteria
| Criterion | What to check |
|---|---|
| Readability | size, line-height, contrast, line length |
| Languages | Cyrillic, Ukrainian characters, English |
| File weight | subset, variable font, preload |
| CLS | fallback metrics, font-display |
| Brand | character without hurting usability |
| Accessibility | contrast, text spacing, zoom |
Practical rules
- Do not use more than 1-2 families without a reason.
- Limit the number of weights.
- Check Cyrillic and Ukrainian characters before implementation.
- Avoid body text that is too thin.
- Configure fallback so text does not jump.
- Test mobile first: bad typography shows faster there.
The SEO logic is simple: if text is hard to read, users leave faster, understand the offer worse, and reach CTA less often.
For full page checks, use UNmiss, sem.chat for user questions, and SEOquick UX/CX services.
Sources

Pagination SEO: how to index list pages without breeding duplicates
Pagination SEO in 2026: canonicals on list pages, noindex, rel=next/prev, infinite scroll, crawl budget. Based on a check of 36,000 traffic-driving URLs across twelve Ukrainian retailers, plus a teardown of pagination at Foxtrot, Epicentr and our own blog.
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URL Structure: The Full Guide to Addresses You Can't Change After Launch
How to get URLs right: transliteration or Cyrillic, slug length, duplicates from case and filters, pagination, UTM tags, redirect maps. A breakdown of Rozetka, Comfy, Prom and Makeup URLs plus 2026 research data.
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Why AI Cites Your Site But Never Names Your Brand
I analysed 751 Google AI Overview answers for my own domain and found the factor that decides whether your brand gets named: where your link sits in the source list. Plus six prompts to audit your brand in ten minutes.
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