Certificate Transparency Scraper: Subdomain Discovery

Query certificate transparency logs via crt.sh to enumerate subdomains, issuers, validity windows and certificate history for any domain. Passive attack-surface discovery. no login, no proxy, no browser.

Publisher description, verbatim

Last 7 dayson this actor

No changes seen in the last 7 days.

The morning one happens, followers hear first.Follow this actor

Key figures29 readings

Price / 1k$1.50per 1,000 certificate-scrape

Users / 30d0→ 0 over 29 readings

Users, all time1→ 0 over 29 readings

Runs / 30d0not enough history for a trend

Runs / user / mo—runs per monthly user

Store search presence

1top-10 keywords

best #6 for “discovery login”

discovery login#6

re-crawled daily

Recorded changes

2026-08-29searchKeyword rank moveentered top-10 for “discovery login” (outside top 100 → #4)—on record
2026-08-29changeBack on the store—on record
2026-08-28changeRemoved from the store—on record

showing 3 of 4 in the last 30 days · followers get all 4 by email

History

29 readings since 2026-08-27

Users / 30d29 readings

Users, all time29 readings

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Numbers on this page are measured only by an independent census of the Apify Store — not self-reported.