First at all I will explain what I mean:

I had two files index.html and searchDomain.html so I want to open de other file with a window.open(searchDomain.html); in this file i got this:

<select  id="menu" name="tld" class="form-control">
              <option value=".com">
              .com
              </option>
              <option value=".com.mx">
              .com.mx
              </option>
              <option value=".mx">
              .mx
              </option>
</select>

I don't know how to change the <select> option value with the URL.

Example URL: 127.0.0.1/searchDomain.html So the desire result would be the select option value on .com.mx This is the desire url This is the desire result from previous url

if there is a JS or any function to do it.

wen a click a link on index.html get redirected to searchDomain.html?selectid=menu&value=.com.mx to change the value of the <select id="menu"> <option value=".com.mx>

let menu = document.getElementById('menu')
let tld = menu.options[menu.selectedIndex].value

window.open('searchDomain.html?...&value='+ tld)