Free Tools
Free Network & Monitoring Tools
Free diagnostic tools for DNS, SSL, IP, email, and network analysis. No sign-up required.
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DNS Record Lookup
Check A, AAAA, MX, NS, SOA, TXT, CNAME, and CAA records for any domain.
SSL Certificate Checker
Verify SSL/TLS certificate validity, expiry, chain, and security configuration.
MX Record Lookup
Check MX records, mail server IPs, SPF, and DMARC records for any domain.
IP Address Lookup
Look up geolocation, ISP, ASN, and network info for any IP address or domain.
Online Traceroute
Trace the network path to any host with hop-by-hop latency and routing info.
Email Blacklist Checker
Check if an IP or domain is on 70+ DNS-based email blacklists.
Website Speed Test
Test website loading speed with performance metrics and optimization tips.
Subnet Calculator
Calculate subnet masks, CIDR notation, usable IP ranges, and network details.
Uptime Calculator
Calculate allowed downtime for any SLA uptime percentage.
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