Individual skill

og-url-match

Use when auditing Open Graph tags or investigating why social share counts appear low. Applies to any page with both canonical-url and og:url tags.

skills/og-url-match/SKILL.md

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# OG URL Match

When og:url doesn't match the canonical URL, social platforms track share counts separately for each URL variant—published share counts get split across multiple URLs and appear lower than they actually are.

## Quick Reference

- og:url must exactly match the <link rel='canonical-url'> URL
- Use absolute HTTPS URLs for both og:url and canonical-url
- Mismatched URLs cause social platforms to aggregate share counts on the wrong URL
- og:url should be the clean canonical URL without tracking parameters

## Check

Compare the og:url meta tag value with the <link rel='canonical'> href value. Both must be identical absolute HTTPS URLs. Flag any page where they differ, either in protocol, domain, path, or query string.