Domain Attack Surface — SSL + CT Logs + Breach History

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.

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.

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.

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.

Subdomain Finder — Certificate Transparency (crt.sh)

bgfc97/crtsh-subdomain-finder

Discover subdomains of any domain from public Certificate Transparency logs (crt.sh). Attack-surface mapping and recon with first/last-seen dates. No key, no proxy.

Have I Been Pwned Breaches Catalog Scraper

parseforge/hibp-breaches-catalog-scraper

Scrapes the Have I Been Pwned breach catalog by full list, domain filter, or single breach name. Returns each breach as a flat row with title, date, compromised accounts, and exposed data classes.

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.

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.

WHOIS, DNS, SSL, and subdomain intelligence for any domain in one run. Registration data, DNS records, SSL chain, subdomain discovery from CT logs. Essential for OSINT, security research, penetration testing, and domain due diligence.

crt.sh Cert Monitor — Subdomain & SSL Cert Discovery

vhsgreed/crtsh-cert-monitor

Monitor certificate-transparency logs via crt.sh (keyless, no API key) for any domain: newly issued subdomains, certificate issuers, first/last-seen dates and cert IDs. Flat one-record-per-cert output for CSV/Excel/JSON export. Ideal for attack-surface discovery and brand monitoring.