What is my IP address?

CLI examples

$ curl blog.cajwan.cz
3.145.171.58

$ http -b blog.cajwan.cz
3.145.171.58

$ wget -qO- blog.cajwan.cz
3.145.171.58

$ fetch -qo- https://blog.cajwan.cz
3.145.171.58

$ bat -print=b blog.cajwan.cz/ip
3.145.171.58

Country lookup

$ http blog.cajwan.cz/country
United States

$ http blog.cajwan.cz/country-iso
US

City lookup

$ http blog.cajwan.cz/city
Seattle

JSON output

$ http blog.cajwan.cz/json
{
  "ip": "3.145.171.58",
  "ip_decimal": 59878202,
  "country": "United States",
  "country_eu": false,
  "country_iso": "US",
  "city": "Seattle",
  "hostname": "ec2-3-145-171-58.us-east-2.compute.amazonaws.com",
  "latitude": 47.6348,
  "longitude": -122.3451
}

Setting the Accept: application/json header also works as expected.

Plain output

Always returns the IP address including a trailing newline, regardless of user agent.

$ http blog.cajwan.cz/ip
3.145.171.58

Map

FAQ

How do I force IPv4 or IPv6 lookup?

As of 2018-07-25 it's no longer possible to force protocol using the v4 and v6 subdomains. IPv4 or IPv6 still can be forced by passing the appropiate flag to your client, e.g curl -4 or curl -6.

Is automated use of this service permitted?

Yes, as long as the rate limit is respected. The rate limit is in place to ensure a fair service for all.

Please limit automated requests to 1 request per minute. No guarantee is made for requests that exceed this limit. They may be rate-limited, with a 429 status code, or dropped entirely.

Can I run my own service?

Yes, the source code and documentation is available on GitHub.