Multi-language Drift Detector — find hidden language bleed

Find hidden language bleed on multilingual sites: Russian text on Spanish pages, broken hreflang, JSON-LD inLanguage mismatches. No other tool on the market does this.

Your domain

Scans up to 20 URLs from your sitemap.xml. Takes 5-15 seconds. Rate limited to 10 checks/minute per IP.

Issues found

🛡 Continuous monitoring

You scanned once. WordPress updates, plugin changes, content edits all cause drift to come back. GuardLabs Care re-scans every 30 minutes, alerts via Telegram.

See GuardLabs Care — $240/year →

Or: run full AI-Readiness audit for 11+ other signals.

What this detects

For sites with /en/, /es/, /ru/, /pl/, /de/ or similar language paths:

Script mismatch: Cyrillic text on Spanish pages (>10% threshold), Latin on Russian pages, etc.
HTML lang tag mismatch: URL says /es/ but <html lang="ru">
JSON-LD inLanguage mismatch: structured data lang ≠ URL/HTML lang

Real production examples we've caught (on our own sites + 30 audited): WordPress hreflang plugin going stale after update, JSON-LD copy-pasted from /en/ to /es/ without translation, Russian admin content leaking into public Spanish page.

🌐 Multi-language Drift Detector

Issues found

🛡 Continuous monitoring

What this detects