NetTools
Free network and security tools. No registration required.
Available Tools
DNS Lookup
NewCheck A, MX, TXT, NS and more
DNS Propagation
NewCheck global DNS propagation
SSL Checker
NewAnalyze SSL certificate grade
WHOIS Lookup
NewDomain registration info
IP Geolocation
NewLocate any IP address
Port Scanner
NewScan open ports on any domain
Reverse DNS
NewIP to hostname lookup
Email Server Test
NewMX, SPF, DKIM, DMARC
HTTP Headers
NewInspect security headers
Ping & Traceroute
NewTest connectivity and routing
What Is My IP
NewFind your public IP address
Speed Test
NewTest download and upload speed
SSL Deep Analysis
NewFull SSL/TLS security analysis
SMTP Troubleshoot
NewFull SMTP diagnostics — MX, TLS, SPF, DKIM, DMARC, blacklists & relay test
IP Blacklist Check
NewDeep scan IP or domain against 50+ DNS blacklists (DNSBL/RBL)
WordPress Scanner
NewSecurity scan for WordPress sites — version, plugins, exposed files & headers
Web Security Scanner
NewSSL, headers, cookies, mixed content, sensitive files, CORS & DNS security
DNS Troubleshoot
NewSOA, NS health, DNSSEC, propagation, TTL & zone diagnostics
Performance Scanner
NewTTFB, Core Web Vitals, resources, caching & compression analysis
HTTP/2 & HTTP/3 Tester
NewTest HTTP/1.1, HTTP/2 and HTTP/3 support, ALPN, Alt-Svc & TLS