Networking Tools

Look up IP geolocation data; query DNS records via Cloudflare DoH; look up domain and IP registration data via RDAP. Test download speed and check if a URL is reachable.

IP lookup, DNS lookup, WHOIS, port reference, speed test, URL reachability check, and MAC vendor lookup. The IP/DNS/WHOIS tabs, and URL Check for public addresses, send what you enter to our server, which asks the public lookup services (an IP-geolocation service, Cloudflare DNS-over-HTTPS, RDAP) for you — those services see our server, not you. Port reference is fully local, and MAC vendor lookup is answered by our server from the IEEE registry.

Networking Tools

Look up IP geolocation data; query DNS records via Cloudflare DoH; look up domain and IP registration data via RDAP. Test download speed and check if a URL is reachable.

Common uses

  • Look up the geolocation of an IP address
  • Query MX records for a domain
  • WHOIS lookup for a domain registration
  • Test internet download speed
  • Check if a website is reachable

Also searched as

  • ip geolocation lookup
  • dns lookup mx txt cname records online
  • whois rdap domain lookup
  • well-known port numbers list
  • mac address vendor lookup
  • internet download speed test
  • is website reachable check url
  • what is my ip address location
  • domain registration expiry lookup
  • oui lookup mac manufacturer

Frequently asked questions

Is my data uploaded to a server?

Partially. The IP, DNS, and WHOIS tabs send what you enter to public lookup services (ipapi.co, Cloudflare, RDAP) to get an answer — that's unavoidable for a real lookup. Port reference and MAC vendor lookup stay fully local.

How do I look up DNS records for a domain?

Use the DNS Lookup tab, which looks up record types such as A, MX and TXT through the site's backend using Cloudflare DNS-over-HTTPS. It also does reverse (PTR) lookups from an IP.

How can I find who registered a domain?

The WHOIS tab uses RDAP to show domain and IP registration data.

Can I look up the vendor of a MAC address?

Yes, the MAC Vendor tab identifies the manufacturer from a MAC address.

Is there a port number reference?

The Port Reference tab lists well-known and default ports.

Can I check if a URL is reachable?

Yes, the URL Check tab tests reachability, and there is also a download Speed Test tab.

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