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Preview of ChainGuard

ChainGuard by sunken.dev

Inspect the real TLS certificate chain of every site against your regex patterns; flag matches on the toolbar icon.

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About this extension
ChainGuard is a Chrome extension that passively reads the certificate of each
site you visit, checks it against regex patterns you define, and flags matches
on the toolbar icon, plus optional desktop notifications and a searchable
history of everything it scanned. Everything runs locally.
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Permissions and data

Optional permissions:

  • Display notifications to you
  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.3.0
Size
207.94 KB
Last updated
3 days ago (Jul 7, 2026)
Related Categories
  • Privacy & Security
  • Alerts & Updates
License
All Rights Reserved
Version History
  • See all versions
Tags
  • privacy
  • security
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