What exactly this criterion covers
We often see it as an error on mass-generated sites.
**L2 — Perceived loading time** (Chapter 12 - UX & Accessibility): Skeleton screens, spinners, visual feedback during loading
L2 — Chapter 12 - UX & Accessibilité
Criterion l2-temps-chargement-percu : SEO Criterion L2: Perceived Loading Time — guide + checklist
We often see it as an error on mass-generated sites.
The criterion **L2 — Perceived loading time** is part of our SEO checklist (335 criteria). Here, you have a **practical** method to check and correct it — with a concrete example.
Why It's Important (SEO + UX)
Why it matters: it's a UX point that ultimately translates into SEO. When poorly applied, we often observe: ambiguity (wrong query associated), duplication between pages, or loss of performance in indexing rate.
For high-volume generated sites, this criterion also serves as a **safeguard**: a stable rule prevents 1,000 errors at once.
How to check (step-by-step)
Approach: tool-based testing (validator / performance). Recommended tool: **Chrome UX Report (CrUX)**.
- Open the page in Chrome → DevTools → Performance/Network tab.
- Run PageSpeed Insights and note the main weakness.
- Check if the problem recurs on templates.
Tip: first isolate 10 "representative" URLs (top pages + generated pages) before scaling the fix.
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FAQ
Frequently asked questions — L2
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Ready to go from theory to action?
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