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Dec 28, 2012

tldextract

Extract root domain, subdomain name, tld from a url, using the the Public Suffix List.

Installation

Install tldextract:

go get github.com/joeguo/tldextract

To run unit tests, run this command in tldextract's source directory($GOPATH/src/github.com/joeguo/tldextract):

go test

Example

package main

import (
"fmt"
"github.com/joeguo/tldextract"
)


func main() {
	urls := []string{"git+ssh://www.github.com:8443/", "http://media.forums.theregister.co.uk", "http://218.15.32.76", "http://google.com?q=cats"}
	cache := "/tmp/tld.cache"
	extract, _ := tldextract.New(cache,false)

	for _, u := range (urls) {
		result:=extract.Extract(u)
		fmt.Printf("%+v;%s\n",result,u)
	}
}

Output will look like:

  &{Flag:1 Sub:www Root:github Tld:com};git+ssh://www.github.com:8443/
  &{Flag:1 Sub:media.forums Root:theregister Tld:co.uk};http://media.forums.theregister.co.uk
  &{Flag:2 Sub: Root:218.15.32.76 Tld:};http://218.15.32.76
  &{Flag:1 Sub: Root:google Tld:com};http://google.com?q=cats

Flag value meaning

const (
	Malformed = iota
	Domain
	Ip4
	Ip6
)

========

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Extract root domain, subdomain name, and tld from a url, using the Public Suffix List.

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