What exactly this criterion covers
This criterion seems “simple”, but it causes many discrepancies in production.
**SEC4 — Safe Browsing OK** (Chapter 13 - Security): No Google warnings, check Search Console
SEC4 — Chapter 13 - Sécurité
Criterion SEC4 : Safe Browsing OK — guide + checklist
This criterion seems “simple”, but it causes many discrepancies in production.
The **SEC4 — Safe Browsing OK** criterion is part of our SEO checklist (335 criteria). Here, you have a **practical** method to verify and fix it — with a concrete example.
Why it matters (SEO + UX)
Why it matters: it is a lever for CTR and perception in SERP. When poorly applied, we often observe: ambiguity (wrong associated query), duplication between pages, or performance loss on bounce rate.
On high-volume generated sites, this criterion also serves as a **safeguard**: a stable rule prevents 1,000 errors at once.
How to verify (step by step)
Approach: tool-assisted test (validator / performance). Recommended tool: **SSL Labs**.
- Open the source code and locate the concerned element (tag/structure).
- Check the hierarchy and coherence with H1 + intro.
- Run a crawl to detect pages violating the criterion.
Tip: first isolate 10 “representative” URLs (top pages + generated pages) before scaling the fix.
How to properly fix
Strategy: repair, re-crawl, and monitor in Search Console.
- Check HTTPS + clean redirects.
- Add basic headers (HSTS, reasonable CSP) according to your stack.
- Retest after deployment.
Then: re-crawl 50–200 URLs, then monitor Search Console for 7–14 days (impressions/CTR/indexing).
Concrete example (illustrative)
Example (illustrative):
- **Context**: training page for dentist in Lille
- **Before**: HTTPS OK but headers missing (CSP/HSTS).
- **After**: Added HSTS + reasonable CSP + secure cookies (if applicable).
- **Note**: Goal: reduce risks and improve browser trust.
Checklist to tick
- [ ] HTTPS everywhere
- [ ] Complies: check Search Console
- [ ] Clean redirects
- [ ] Basic headers tested
- [ ] No mixed content
FAQ
Frequently asked questions — SEC4
What is the most common error on “Safe Browsing OK”?
Applying an automatic pattern that is too generic (same logic on all pages) without adding a differentiating element.
Which tool is the fastest for large-scale control?
For this type of criterion, a crawl (e.g. Screaming Frog) + targeted verification in SSL Labs is generally the fastest combo.
How to prevent this from happening again on 10K generated pages?
Freeze an auto-generation rule (title/structure/schema/URLs) + add automatic control (crawl or test) before production import.
Ready to go from theory to action?
Validate this criterion with an audit, then deepen the method in the Academy.