Content is loading…
IP geolocation, DNS, WHOIS, subnet, speed test.
The Network category on Toolsy provides a comprehensive collection of utilities designed to diagnose connectivity, inspect domain configurations, and analyze system parameters. These free, browser-based tools assist developers, network administrators, and everyday users in troubleshooting performance issues and verifying security protocols without requiring software installations.
14 tools
Look up country, city, ISP, and location for any IP address.
Look up domain registration, expiry, nameservers, and registrar.
Measure your download speed, upload speed, ping, and jitter in seconds.
See your public IP address plus full location, ISP, ASN, timezone, coordinates, and more.
Calculate subnet details from CIDR notation instantly.
Query A, AAAA, MX, TXT, CNAME, and NS DNS records for any domain.
Audit response headers + get a security grade for any URL.
Test if a TCP port is open on any host.
Identify device vendor from a MAC address.
Check SPF, DKIM, and DMARC records for any domain with plain-English explanations.
Trace a URL through every redirect hop to its final destination.
Check if a website is down for everyone or just you.
See what sites can silently detect about you: fingerprint, WebRTC IP leak, fonts & more.
A complete live readout of your device: OS, model, CPU, GPU, screen, battery & more.
Quickly identify local IP configurations, check open ports, and test internet download and upload speeds to diagnose connection drops.
Inspect DNS records, verify email authentication protocols like SPF, DKIM, and DMARC, and perform WHOIS lookups to manage domain ownership details.
Analyze HTTP response headers and trace redirect chains to ensure web pages load securely and efficiently without routing loops.
Calculate subnets, identify hardware vendors via MAC addresses, and check website uptime to maintain robust and secure local and wide-area networks.