🔍 Subdomain Finder & CT Log Scraper

Wayback Machine URL Extractor - Archived URLs

logiover/wayback-machine-url-extractor

Extract every archived URL of any domain from the Internet Archive's Wayback Machine (CDX API). Recover lost or old pages, build redirect maps and run OSINT, with date and status filters. No API key, export to CSV or JSON.

Bulk WHOIS Lookup - Domain Registration & Expiry

logiover/bulk-whois-rdap-lookup

Bulk WHOIS / RDAP lookup for thousands of domains: registrar, creation and expiry dates, status, nameservers and registrant org. Great for domain monitoring, expiry alerts, lead generation and due diligence. No API key, CSV/JSON export.

Bulk HTTP Security Headers Analyzer - CSP, HSTS

logiover/bulk-http-security-headers

Analyze HTTP security headers for thousands of URLs. Checks CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy and more. Returns pass/fail per header plus a numeric security score. No API key, export to CSV/JSON. Ideal for security audits and compliance scanning.

Subdomain Finder: Certificate Transparency

glitchbound/subdomain-scraper

Enumerate every subdomain of a domain from public Certificate Transparency logs. No brute-force wordlist and no DNS hammering, because every TLS certificate is logged, so the hosts are already public record. Deduplicated to one row per hostname, with first seen, issuing CA and current validity.

Short URL Resolver & Scraper

taroyamada/url-shortener-resolver

Trace redirect chains and expand short URLs without executing browser scripts. Extract complete hop histories, identify infinite loops, and verify HTTP status.

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.

Day-zero startup leads from Certificate Transparency: crt.sh finds domains whose FIRST TLS cert was just issued, we enrich each new site's OWN website with MX/DNS-verified emails + phones + socials + tech stack + A-D launch-readiness. Be first to a newly-launched business. Per-result, no keys.

🌐 DNS Propagation Checker

taroyamada/dns-propagation-checker

Query up to 200 domains across 8 global resolvers to extract A, NS, and SOA records and audit worldwide nameserver propagation instantly.

CSV Cleaner & Deduplication Tool

taroyamada/csv-data-cleaner

Clean user-supplied CSV tables by trimming whitespace, removing empty rows, deduplicating selected columns, and sorting records without external data collection.

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.

Sublist3r Subdomain Finder & Takeover Scanner

datacach/sublist3r-subdomain-finder

Subdomain enumeration from passive OSINT sources — certificate transparency logs, passive DNS and public APIs — with optional active HTTP/TLS fingerprinting of every live host, scored for takeover risk. Run it only against domains you are authorized to assess.