Security.txt Checker — Security Contact Finder

OSINT Website Intelligence Analyzer

onescales/website-intelligence-analyzer-osint

All-in-one website analysis tool. Run 30 OSINT checks on any URL — DNS, SSL, WHOIS, tech stack, security headers, email security, open ports, and more. Get a complete site profile in seconds.

Holehe Email OSINT - Find Registered Accounts

anshumanatrey/holehe-email-osint

Check if an email is registered on 120+ platforms (Instagram, Twitter, GitHub, Discord, etc.) without alerting the target. Perfect for OSINT investigations, security research, and email verification.

Bug Bounty Program Finder

thescrapelab/bug-bounty-program-finder

Find public bug bounty programs, vulnerability disclosure programs, security.txt contacts, rewards, scope, safe harbor notes, and disclosure policy URLs.

Security.txt Checker - Website Security Contacts

benthepythondev/security-txt-checker

Check websites for security.txt disclosure files and extract contacts, policies, encryption keys, expiry dates and raw security metadata.

Email Data Breach Checker

lofomachines/email-breach-checker

Check if your email has been compromised in a data breach. Scan one or hundreds of emails in bulk to find leaked passwords, exposed accounts, and stolen credentials. Get a full risk score, breach history, and affected sites — fast, accurate, and affordable.

Bulk Domain Email Security Checker

automation-lab/bulk-domain-email-security-checker

Audit SPF, DMARC, MX, and DKIM DNS posture for bulk domain lists with scores, risk flags, and raw records.

🌐 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.

Bug Bounty Finder: 22-Field Intel from HackerOne & Bugcrowd

getascraper/bug-bounty-finder

Find every public bug bounty and VDP program in one run. Queries HackerOne directory, Bugcrowd engagements, and security.txt files. 22 fields per program: min/max bounty, currency, resolved reports, policy snippet, contacts, expiry. $3.99 per 1,000 results.

Check public security.txt readiness: contact, expiry, canonical, policy, encryption, risk labels, hashes, and useful-result pricing.

Email Finder & Verifier - B2B Email Lookup API

clearpath/email-finder-api

Find verified business emails using first name, last name, and company domain. Tests common patterns and validates with SMTP checks. Upload CSV or Excel files for bulk processing. Returns quality-ranked results with alternative emails and confidence scores. Export to JSON or CSV.

Email & Subdomain Finder - theHarvester OSINT | 54 Sources

anshumanatrey/theharvester-osint

Cloud-hosted theHarvester OSINT tool. Harvest emails, subdomains, IPs, URLs and ASNs from 54+ public sources (Shodan, Censys, crt.sh, VirusTotal, SecurityTrails, GitHub, hunter.io). Full CLI feature parity — DNS brute force, subdomain takeover, screenshots. $0.003 per record harvested.