Fix Fact-Check Markup Checker Setup Issues
Fact-Check Markup Checker can return weak or inconsistent output when the target URL, crawler access, or baseline metadata is misconfigured. Use this checklist to stabilize setup before deeper analysis.
Common causes
- Wrong URL format or mixed protocol variants (http/https).
- Important paths blocked in robots or by firewall/CDN rules.
- Missing baseline assets (llms.txt, tools.json, sitemap, schema).
How to fix
- Normalize URL and test canonical destination first.
- Allow required bot/user-agent access for this check path.
- Re-run after baseline files are reachable and return 200.
Common errors
ValidationError: Invalid input payload in fact-check-markup-checkerFetchError: Timeout while requesting target URL for fact-check-markup-checkerParseError: Unsupported response format detected by fact-check-markup-checker
FAQ
- Why does Fact-Check Markup Checker return weak results?
- Weak results usually indicate missing baseline signals (crawlability, schema, or clean input). Validate prerequisites and rerun the check.
- How do I improve Fact-Check Markup Checker reliability in production?
- Use stable URLs, valid structured data, and consistent machine-readable files. Re-test after each fix to confirm signal improvement.
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