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Free · Open Source · 12+ Tools

DNS Lens

Everything about your domain in one screen.
Quick analysis, web security, whois and email header analysis.

Quick try:

DNS Lookup

A, AAAA, MX, NS, TXT, SOA and more

SSL Check

Certificate expiry, chain, SAN, encryption

Email Security

SPF, DKIM, DMARC, BIMI, MTA-STS

Propagation

Check propagation across 20 global DNS servers

Blacklist

12 DNSBL spam & blacklist check

Port Scan

Quick security scan of 21 critical ports

Web Security Scan

SSL certificate, HTTP headers, security header score, port scan

WHOIS Information

Domain registration and ownership details

Leave port empty to scan all 21 common ports

Reverse IP Lookup

Find other sites hosted on this IP or domain

Header Analysis

Paste raw email headers to view routing and security details

Examples:

Email Health

MX, SPF, DKIM, DMARC, Port 25 and PTR status

Port Scan

Find open ports and services

Reverse IP

Find all domains on an IP

DNS Propagation

Check DNS propagation worldwide

Blacklist Check

Check domain/IP against 30 DNSBLs

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