NetTools

Check A, MX, TXT, NS and more

Check global DNS propagation

Analyze SSL certificate grade

Domain registration info

Locate any IP address

Scan open ports on any domain

IP to hostname lookup

MX, SPF, DKIM, DMARC

Inspect security headers

Test connectivity and routing

Find your public IP address

Test download and upload speed

Full SSL/TLS security analysis

Full SMTP diagnostics — MX, TLS, SPF, DKIM, DMARC, blacklists & relay test

Deep scan IP or domain against 50+ DNS blacklists (DNSBL/RBL)

Security scan for WordPress sites — version, plugins, exposed files & headers

SSL, headers, cookies, mixed content, sensitive files, CORS & DNS security

SOA, NS health, DNSSEC, propagation, TTL & zone diagnostics

TTFB, Core Web Vitals, resources, caching & compression analysis

Test HTTP/1.1, HTTP/2 and HTTP/3 support, ALPN, Alt-Svc & TLS