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$15.00 / 1,000 domain scanneds

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CT Subdomain Finder & New Certificate Alerts · SiteVerdict

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Find every subdomain of your domains from Certificate Transparency logs (crt.sh or your Cert Spotter key): first/last seen, issuers, wildcards, live DNS and dangling-CNAME takeover hints. Monitor mode alerts you to new hosts and certificates via Slack or webhook.

Pricing

$15.00 / 1,000 domain scanneds

Rating

0.0

(0)

Developer

Aman Thakran

Actor stats

Bookmarked

Total users

Monthly active users

3 days ago

Last modified

1.0.0 (11 Oct 2026)

First release: subdomain inventory from Certificate Transparency via crt.sh (free) or Cert Spotter (user key).
Wildcard rows and "covered by wildcard" flag; first/last seen, latest expiry, issuers, certificate counts.
DNS liveness (A/AAAA/CNAME) and dangling-CNAME takeover hints (DNS-only, passive).
Monitor mode: new/removed hosts per domain, only-new output, Slack/webhook alerts.
Polite crt.sh usage: one query per domain, long timeout, 3 attempts with long backoff, per-account result cache.

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