Checking whois of a domain is always not easy especially when we want to look the domain whois fast and without any ads. All the whois sites either restrict the number of usage on daily/hourly limits or they impose some sort of captcha for whois check.
So its always better to have simple online whois checking script within our hosting for our own usage.
I just wrote a simple tiny php program for this task
you can download the whois script.
just unzip the file and upload to your server and run directly to check the whois
Demo whois demo