B2B Domain Email Deliverability & DNS Security Auditor (SPF/

Full domain security audit in one call: SSL/TLS, DNS, SPF/DKIM/DMARC, security headers, WHOIS, blacklist, tech stack — PLUS subdomain-takeover risk and public S3-bucket exposure detection, which no other domain-audit tool checks. Returns a 0-100 health score + fix list. No API key, no login.

Email Domain Scraper - Extract Emails From Websites by Domain

s-r/free-email-domain-scraper

Enter up to 10 company domains or website URLs and get the email addresses published for each one: one row per address with its domain, ready for CSV, Excel or JSON. For lead generation, outreach lists and finding press, sales or support contacts. You only pay per email found.

Email Finder by Name and Domain📧 $1/1K Emails, Super Cheap.

snipercoder/email-finder-by-name-and-domain

Input: Name and Domain. Output: Email. Quickly find verified email addresses with 97%+ Accuracy. Perfect for Lead Generation, Email campaigns, Data Enrichment. ✅Forget AnymailFinder, apollo.io, hunter.io, they are all to break the Bank.

B2B Contact & Email Finder — Decision Makers by Domain

brilliant_gum/b2b-contact-email-finder

Turn a company domain into named decision makers: full name, job title, seniority, department, LinkedIn URL and a work email built from the person's name, with a live DNS/MX check and full company firmographics attached to every contact.

Domain Deliverability Checker

mambalabs/domain-deliverability-checker

Audit a domain's email deliverability: SPF, DKIM, DMARC and policy, MX and mail provider, catch-all and blacklist checks, domain age, and a 0 to 100 health score. Flat JSON, Clay ready.

OpenOSINT Domain Recon — Email Security & Attack Surface Check

complete_analogy/openosint-domain-recon

Check any domain's SPF, DMARC, and DKIM email security — graded A-F, plus RDAP domain lookup. For vendor due diligence and phishing prevention.

Domain Availability Checker — Bulk DNS & WHOIS Lookup

automation-lab/domain-availability-checker

Check exact domain names in bulk and return available/registered verdicts with DNS/WHOIS method, registrar, creation/expiry dates, name servers, timing, and errors in structured JSON.

🛡️ Audit MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI, CAA, DNSSEC, and web TLS without sending email. Get evidence-backed security and deliverability scores, prioritized fixes, and a client-ready report.

Security Breach Scraper (Saad Belcaid)

belcaidsaad/security-breach-scraper-saad-belcaid

A company can hide budget, hide priorities, but cannot hide a HIPAA breach once it hits that portal. So this scraper turns a public compliance record into a live demand signal.

Email Domain Security Auditor — $0.50/1K

scrapesignal_labs/email-domain-security-auditor

Audit MX, SPF, DMARC, DKIM, MTA-STS, TLS-RPT, BIMI, DNS, provider, issues, and readiness score for domain lists.