# Network Tools

> Look up IP, DNS, WHOIS, and HTTP headers from your browser.

URL: https://uttir.com/network-tools
Tools in this category: 8

## About this category

Network utilities for sysadmins, web developers, and curious users: look up your public IP, query DNS records for any domain, run WHOIS lookups, and inspect HTTP response headers. Some tools fetch public data; everything else runs locally.

## Tools

- [Data Transfer Rate Converter](https://uttir.com/data-transfer-converter) — Convert between bits/second, bytes/second, kbps, Mbps, Gbps, kB/s, MB/s, GB/s, and more.
- [My IP Address](https://uttir.com/my-ip) — See your public IP, approximate location, ISP, and ASN — useful for VPN checks and remote-access setup.
- [DNS Lookup](https://uttir.com/dns-lookup) — Query DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA, CAA) for any domain using Google DNS-over-HTTPS.
- [IP Geolocation Lookup](https://uttir.com/ip-geolocation-lookup) — Look up geolocation info for any IPv4 or IPv6 address — country, city, ISP, ASN, timezone. Free, runs in your browser.
- [CIDR Subnet Calculator](https://uttir.com/cidr-subnet-calculator) — Calculate network, broadcast, mask, wildcard, and host range for any IPv4 or IPv6 CIDR block. Pure math, runs in your browser.
- [WHOIS / RDAP Lookup](https://uttir.com/whois-lookup) — Look up domain or IP registration info via RDAP. Registrar, status, dates, nameservers, contacts. Free, runs in your browser.
- [Internet Speed Test](https://uttir.com/internet-speed-test) — Measure your download speed, latency, and jitter in the browser. Download-only: nothing is uploaded and nothing is tracked.
- [Network Latency Test](https://uttir.com/network-latency-test) — Ping several well-known endpoints from your browser and compare round-trip times to work out whether a slowdown is you or them.

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This file is the markdown rendering at https://uttir.com/network-tools.md.