Network Tools

Free network diagnostic tools including DNS lookup, WHOIS, SSL checker, and more. Professional tools for network analysis and troubleshooting.

All Network Tools

DNS Lookup

Check DNS records (A, MX, CNAME, etc.) with our free DNS lookup tool. Fast and reliable DNS record checker for domain diagnostics.

WHOIS Lookup

Free WHOIS lookup tool to check domain registration, expiry dates, nameservers and registrar information for any domain name.

SSL Checker

Verify SSL certificates, check expiration dates, validation status and certificate details with our free SSL checker tool.

HTTP Headers

Analyze HTTP response headers, security headers, and server information with our free HTTP headers lookup tool.

IP Lookup

Look up IP address information, reverse DNS, location data and more with our comprehensive IP lookup tool.

Reverse IP Lookup

Discover all domains hosted on a single IP address with our reverse IP lookup tool. Find related websites quickly.

Ping

Test server response time and availability with our online ping tool. No software installation required.

URL Info

Analyze URLs to extract information about redirects, security headers, server details and more. Free URL analysis tool.

What Is My IP

Find out your public IP address, location, ISP, and detailed network information. View both IPv4 and IPv6 addresses and check if your location is exposed.

Blacklist Checker

Check if an IP address is listed on any spam or security blacklists with our free online blacklist checker tool. Verify your email server's reputation.

Safe URL Checker

Quickly scan URLs for potential security threats. Check for phishing, malware, and other security risks before visiting websites.

Email Header Analyzer

Parse and analyze email headers to trace delivery paths, verify SPF/DKIM/DMARC authentication, and detect phishing attempts.

Punycode Converter

Convert International Domain Names between Unicode and Punycode (ASCII) format for DNS configuration and international domain registration.

About Network Tools

Professional network diagnostic and analysis tools for IT professionals, system administrators, developers, and network engineers. Our comprehensive suite of network tools helps you troubleshoot connectivity issues, analyze DNS configurations, validate SSL certificates, check website performance, and diagnose network problems quickly and efficiently. Whether you need to perform DNS lookups, trace network routes, check server response times, or validate email server configurations, our free online network tools provide accurate real-time results without requiring command-line access or specialized software installations.

Key Features

  • DNS lookup and record analysis for all record types (A, AAAA, MX, NS, TXT, CNAME, SOA)
  • WHOIS domain registration information and ownership lookup
  • SSL/TLS certificate validation and security analysis
  • HTTP header inspection and server response analysis
  • IP geolocation and network infrastructure mapping
  • Port scanning and service detection for security auditing
  • Ping and latency testing for network performance measurement
  • Traceroute visualization for network path analysis
  • Email server (MX record) validation and deliverability testing
  • Website speed testing and performance optimization insights
  • Subnet calculators for network planning and IP address management

Common Use Cases

  • Network engineers troubleshooting connectivity and routing issues
  • System administrators managing DNS configurations and domain settings
  • Web developers testing API endpoints and debugging HTTP responses
  • Security professionals auditing network infrastructure and SSL certificates
  • IT support teams diagnosing email delivery problems and server outages
  • DevOps engineers monitoring application performance and uptime
  • Cybersecurity researchers investigating malicious domains and IP addresses
  • Website owners optimizing page load times and server configurations
  • Hosting providers validating DNS propagation after migrations
  • Network architects planning IP address schemes and subnet allocations

All tools run directly in your browser with results displayed in real-time. No installation required, no command-line expertise needed. Our network tools are trusted by thousands of IT professionals worldwide for daily network diagnostics, troubleshooting, and infrastructure management tasks. Access professional-grade network analysis capabilities from any device, anywhere, completely free.