ybabts•13mo ago

Parsing Hostname for TLD, domain name, and SLD

does anyone know of any packages to parse a URL's hostname for the top level domain, domain name, and sublevel domains? I found one, but it actually just doesn't work. It just errors saying the label is too short for everything I give it. https://github.com/lupomontero/psl

GitHub

GitHub - lupomontero/psl: JavaScript domain name parser based on th...

JavaScript domain name parser based on the Public Suffix List - GitHub - lupomontero/psl: JavaScript domain name parser based on the Public Suffix List

5 Replies

ybabts•13mo ago

I'm suprised this isn't already in the URL object for Javascript

Unknown User•13mo ago

Message Not Public

ybabts•13mo ago

no I need the sub level domain of the url, which comes from the URL.hostname

// Sub level domain is "api"
// Domain Name is "geeksforgeeks"
// Top level domain is "org"
const url = new URL("https://api.geeksforgeeks.org:3000/pathname/?search=query");
// api.geeksforgeeks.org
console.log(url.hostname)

// Sub level domain is "api"
// Domain Name is "geeksforgeeks"
// Top level domain is "org"
const url = new URL("https://api.geeksforgeeks.org:3000/pathname/?search=query");
// api.geeksforgeeks.org
console.log(url.hostname)

NeTT•13mo ago

why not use some regex for that

const parseHostname =  /(?:([a-z0-9]+)\.)?([a-z0-9]+)\.(?:([a-z]+)\.)?([a-z]+)/

const url = new URL("https://api.geeksforgeeks.org:3000/pathname/?search=query");

parseHostname.exec(url.hostname)
/*
[
  "api.geeksforgeeks.org", // hostname
  "api", // subdomain
  "geeksforgeeks", // domain name
  undefined, // sld
  "org", // tld
  index: 0,
  input: "api.geeksforgeeks.org",
  groups: undefined
]
*/

const parseHostname =  /(?:([a-z0-9]+)\.)?([a-z0-9]+)\.(?:([a-z]+)\.)?([a-z]+)/

const url = new URL("https://api.geeksforgeeks.org:3000/pathname/?search=query");

parseHostname.exec(url.hostname)
/*
[
  "api.geeksforgeeks.org", // hostname
  "api", // subdomain
  "geeksforgeeks", // domain name
  undefined, // sld
  "org", // tld
  index: 0,
  input: "api.geeksforgeeks.org",
  groups: undefined
]
*/

I just woke up, there may be better ways to do it

Unknown User•13mo ago

Message Not Public