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A simple service for looking up your IP address. This is the code that powershttps://ifconfig.co.

Just the business, please:

$ curl ifconfig.co127.0.0.1$ http ifconfig.co127.0.0.1$ wget -qO- ifconfig.co127.0.0.1$ fetch -qo- https://ifconfig.co127.0.0.1$ bat -print=b ifconfig.co/ip127.0.0.1

Country and city lookup:

$ curl ifconfig.co/countryElbonia$ curl ifconfig.co/country-isoEB$ curl ifconfig.co/cityBornyasherk$ curl ifconfig.co/asnAS59795$ curl ifconfig.co/asn-orgHosting4Real

As JSON:

$ curl -H 'Accept: application/json' ifconfig.co  # or curl ifconfig.co/json{  "city": "Bornyasherk",  "country": "Elbonia",  "country_iso": "EB",  "ip": "127.0.0.1",  "ip_decimal": 2130706433,  "asn": "AS59795",  "asn_org": "Hosting4Real"}

Port testing:

$ curl ifconfig.co/port/80{  "ip": "127.0.0.1",  "port": 80,  "reachable": false}

Pass the appropriate flag (usually-4 and-6) to your client to switchbetween IPv4 and IPv6 lookup.

• Easy to remember domain name
• Fast
• Supports IPv6
• Supports HTTPS
• Supports common command-line clients (e.g.curl,httpie,ht,wget andfetch)
• JSON output
• ASN, country and city lookup using the MaxMind GeoIP database
• Port testing
• All endpoints (except/port) can return information about a custom IP address specified via?ip= query parameter
• Open source under theBSD 3-Clause license

• To scratch an itch
• An excuse to use Go for something
• Faster than ifconfig.me and has IPv6 support

Compiling requires theGolang compiler to be installed.This package can be installed with:

go install github.com/mpolden/echoip/...@latest

For more information on building a Go project, see theofficial Godocumentation.

A Docker image is available onDockerHub, which can be downloaded with:

docker pull mpolden/echoip

To utilise MaxMindGeoIP/GeoLite database to enhance the information provided to end users, you can download the relevantbinary databases (.mmdb format) directly from MaxMind using the above links.

Please Note: This has only been tested using the free, GeoLite database.

$ echoip -hUsage of echoip:  -C int    Size of response cache. Set to 0 to disable  -H value    Header to trust for remote IP, if present (e.g. X-Real-IP)  -a string    Path to GeoIP ASN database  -c string    Path to GeoIP city database  -f string    Path to GeoIP country database  -l string    Listening address (default ":8080")  -pEnable port lookup  -rPerform reverse hostname lookups  -t string    Path to template directory (default "html")