ChainGuard

Extension Tools12 users

Item media 1 (screenshot) for ChainGuard

Item media 2 (screenshot) for ChainGuard

Overview

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

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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Details

Version
0.3.0
Updated
July 7, 2026
Flag concern
Offered by
sunken.dev
Size
202KiB
Languages
English
Developer
Email
support@sunken.dev
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

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