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from $1.00 / 1,000 item trackeds

SSL Certificate Monitor — Expiry, CT Logs, Subdomain Discovery

Monitor SSL certificates for expiry, chain validity, and cipher suites. Discover subdomains via Certificate Transparency logs (crt.sh). Alerts for certificates expiring within N days. No API key required.

Pricing

from $1.00 / 1,000 item trackeds

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Developer

Hojun Lee

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SSL Certificate Transparency Scraper (crt.sh)

chrisp1211/certificate-search-scraper-max

Scrape SSL/TLS certificate transparency logs from crt.sh for any domain. Great for security audits and subdomain discovery. Returns common name, subdomains (SANs), issuer and validity. Pay per certificate; empty runs free.

Christian Pichichero

Domain Attack Surface — SSL + CT Logs + Breach History

gochujang/domain-attack-surface-suite

Complete external security posture for any domain in one run: SSL certificate expiry and chain, subdomain discovery via Certificate Transparency logs (crt.sh), and data breach history from Have I Been Pwned. No API key required for core checks.

Hojun Lee

Subdomain Finder, crt.sh Certificate Transparency Logs Search

snow_leo_data/crtsh-subdomain-finder

Subdomain finder past the crt.sh query limits: 7,236 subdomains of mercedes-benz.com where one crt.sh query returns 4. Certificate transparency logs search with duplicates merged, expiring and self-signed certificates flagged, and a watch mode for new certificates.

Snow Leo Data

SSL Certificate Monitor — Bulk Expiry & Chain Checker

accurate_pouch/ssl-monitor

Monitor SSL/TLS certificates in bulk. Expiry dates, issuer, protocol version, key size, certificate chain, SAN list. Webhook alerts for expiring certs. 5 domains free.

Manchitt Sanan

SSL Certificate Expiry Checker — Bulk

hipersoft/ssl-cert-expiry-check

Check SSL/TLS certificates for a list of domains: issuer, validity dates, days to expiry and chain problems. Catch expiring certificates before they cause outages.

hiper soft

Certificate Transparency & Subdomain Discovery Scraper

scrapers_lat/certificate-transparency-scraper

Discover subdomains and SSL/TLS certificates for any domain from public certificate transparency logs. Extract SAN hostnames, issuer, validity dates, wildcard and expiry flags. Perfect for attack-surface mapping, OSINT and asset inventory. Export to JSON, CSV or Excel.

Scrapers Lat

SSL/TLS Certificate Checker: Expiry & Chain Monitor

accountable_eel/tls-certificate-lookup

Look up any domain's TLS certificate history from public Certificate Transparency logs: issuer, validity window, and full SAN list for every certificate ever logged. No API key. Pay only for domains with certificates found.

Adrian Voss

crt.sh Certificate Transparency Scraper

parseforge/crtsh-certificate-transparency-scraper

Search crt.sh certificate transparency logs for a domain and discover subdomains. Get common name, SANs, issuer, validity dates, and serial number per certificate.

ParseForge

Certificate Transparency Scraper: Subdomain Discovery

arman-bd/certificate-transparency-scraper

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.

Arman Hossain

Subdomain Finder - Discover Subdomains via CT Logs

logiover/subdomain-finder

Discover every subdomain of any domain using Certificate Transparency logs (crt.sh). Fast bulk subdomain enumeration for security recon, attack-surface mapping, asset discovery and SEO. No API key — export to CSV or JSON.