Check availability of a domain

correctly write using, another whois. Once did similar, found the script: scripts.pws.ru/whois/source.php

https://github.com/regru/php-whois
A suitable class.

whois ya.ru | grep-i REGISTERED ?

Thank you all for the information provided. Maybe there is a way to check domains .by in addition to how to curlit? For whois servers for these domains are not present.

if regards .by then cheeese domain.by/cgi-bin/registry.cgi?mode=slquest&client&session&lang=e&domain=name (where name.by ) 'is already registered
'or 'is available for registration'

1. Use the script that was mentioned by MaxMiller
2. https://github.com/noys/ianacheck - help this script to determine the servers domain zones
3. gonzotools.ru made using these scripts, you can evaluate their work
4. With a large traffic you will need to use some service that provides whois requests for money.