PHP - How to get a domain age from whois output?

Question

i am trying to calculate a domain age using whois output but mostly whois creation date showing wrong information.

For example: i am retrieve whois data for " alexa.com " from " whois.verisign-grs.com " or " whois.markmonitor.com "

the creation date showing " Creation Date: 2013-10-09 ". According the whois data the domain age is " 0 years, 209 days " old from today!

But it is wrong?? actually, alexa domain age is " 17 years 294 days " old from today.

please look out the below image on Wrong Information of whois

enter image description here

Why it is wrong ? How can i calculate domain age? Totally confused. Help me out...

My guesses are the creation date must be the date when the domain name was renewed. — Shankar Narayana Damodaran, May 07 '14 at 06:22
@Shankar Damodaran - there is a updated date above the creation date! so, updated date is domain renewed date. — user2430116, May 07 '14 at 06:34
The returned information from whois.verisign-grs.com contains the creation date properly. — Ja͢ck, May 07 '14 at 06:40

score 1 · Accepted Answer · answered May 07 '14 at 06:33

You are looking at the wrong part of the WHOIS data. The correct part, for "thick registry" TLDs like .com, is at the top of the response:

   Domain Name: ALEXA.COM
   Registrar: MARKMONITOR INC.
   [a bunch more stuff...]
   Updated Date: 10-oct-2013
   Creation Date: 17-jul-1996
   Expiration Date: 16-jul-2018

>>> Last update of whois database: Wed, 07 May 2014 06:30:57 UTC <<<

The date you're looking for is the "Creation Date" above: July 17th, 1996.

PHP - How to get a domain age from whois output?

1 Answers1