Subdomain Recon - Certificate Transparency Lookup
Enumerate subdomains for a domain from crt.sh Certificate Transparency logs. Right-click a domain to start.
As of June 2026, Subdomain Recon - Certificate Transparency Lookup has — users in the Developer Tools category.
Usersno change0%
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Ratingno change0%
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— reviews
Reviewsno change0%
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Version
1.0.4
Manifest V3
History
3 snapshotsTracking since Apr 29, 2026.
Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
| Date | Users | Rating | Reviews | Version |
|---|---|---|---|---|
| Apr 29, 2026 | — | — | — | 1.0.4 |
| May 17, 2026 | — | — | — | 1.0.4 |
| Jun 13, 2026 | 1 | — | — | 1.0.4 |
| Now | — | — | — | 1.0.4 |
Permissions & access
- Permissions
- activeTabstoragecontextMenus
- Host access
- None declared
Screenshots
About
Enumerate Subdomains From Certificate Transparency Type a domain or right-click any selected domain on a page. The extension queries crt.sh and returns the set of subdomains that have had TLS certificates issued. WHAT IT DOES - Queries crt.sh for certificates matching the given domain - Deduplicates subdomains across CT entries - Displays up to 500 subdomains, alphabetically sorted - Copies the whole list to the clipboard on one click - Prefills with the current tab's hostname - Adds a right-click context menu entry on any selected text that looks like a domain HOW IT WORKS 1. Install the extension 2. Type a domain in the popup, or right-click a domain on a page 3. See the list of subdomains PRIVACY Only the root domain is sent to crt.sh when you click Lookup. Page content is never read. No telemetry. SUPPORT Email: [email protected] Privacy policy: https://extensions.cchk.info/subdomain-recon/privacy Built by Cloud Geeks, a division of Ganda Tech Services.
Technical
- Version
- 1.0.4
- Manifest
- V3
- Size
- 16.14KiB
- Min Chrome
- 88
- Languages
- 1
- Featured
- No
Metadata
- ID
- ojfpmfmpfnojkcolhdibnhogdapnbank
- Developer ID
- u2e44e5d73e7060e89bcb448e99138020
- Developer Email
- [email protected]
- Created
- Apr 28, 2026
- Last Updated (Store)
- Apr 28, 2026
- Last Scraped
- Jun 13, 2026
- Website
- cloudgeeks.com.au
- Privacy Policy
- https://extensions.cchk.info/subdomain-recon/privacy
Data sourced from the Chrome Web Store · last verified Jun 13, 2026.