https://scoutb2.io/tools/internal-link-checker/
Free Internal Link Checker and Analyzer | SCOUTb2
Categorize all links in your HTML as internal or external. Flags duplicate links, anchor-only links, and basic link structure issues.
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https://abacktools.com/tools/data/analyzers/broken-internal-link-checker
Broken Internal Link Checker - Find Broken Anchor Links | Aback Tools
Free broken internal link checker online. Detect broken fragment links, duplicate IDs, and weak internal navigation patterns from your HTML snippets.
internal link checkerbrokenfindanchorlinks