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Professional DNS & Network Diagnostic Tools

72+ free tools for DNS lookups, IP analysis, and webmaster utilities. Check SPF, DKIM, DMARC records, monitor DNS propagation, analyze SSL certificates, and more.

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Quick DNS Lookup
Query A, AAAA, MX, TXT, NS, CNAME, and SOA records
72+
Free Tools
20
DNS Tools
25
IP Tools
27
Webmaster Tools

Explore Our Tool Categories

DNS Tools

20 tools

20 professional DNS tools: DNS Lookup, MX Records, SPF, DKIM, DMARC checkers, DNS propagation monitor, SSL certificate checker, and more.

  • SPF, DKIM, DMARC Checkers
  • DNSSEC Validation
  • DNS Health Check

IP Tools

25 tools

25 IP tools: Ping, Traceroute, IP Geolocation, ASN Lookup, Port Scanner, HTTP Security Headers, Blacklist Checker, WHOIS, IPv6 utilities, and more.

  • Ping & Traceroute
  • IP Geolocation
  • Blacklist Checker

Webmaster Tools

27 tools

27 utility tools: Base64 encoder/decoder, JWT tools, hash generator, UUID generator, JSON formatter, regex tester, QR code generator, and more.

  • Base64 & JWT Tools
  • Hash Generator
  • JSON Formatter

Popular Tools

DNS Lookup
MX Lookup
Propagation
SSL Checker
WHOIS
Reverse DNS
Email Test
Subnet Calc

Why Choose DNS Insight?

Fast & Reliable

Instant results with real-time DNS queries from multiple servers worldwide

No Sign-up Required

Use all 72+ tools completely free without any registration

Save Results

Optional free account to save and compare results over time

Dark Mode

Easy on the eyes with full dark mode support across all tools

Save Your Results

Create a free account to save DNS lookup results and track changes over time. Compare historical data to spot configuration changes.

Create Free Account

Saved results are automatically deleted after 6 months.