Hello vijay.gupta,
Websites only change their IP addresses if they change host, or the host changes to a different data centre. It's possible that the data centre has changed ISP's, but it is highly unlikely that they would have a dynamic IP.
Any reason why you're asking?
Cheers,
Thanks nahumi. I was just thinking about the use of dns and then this query came to.my mind to which i was not able to think of any proper answer. So, i asked this query in this forum.
Ofcourse, big websites often have multiple IP addresses and the DNS servers hand them out in a "round robin" style to distribute load and improve reliability and performance. So, you may receive a different IP address depending on when you attempt to access the website.