A dynamite website pun is:
 
Q: Have you seen the dynamite website?
A: Yes, it really blew my mind.
 
The dynamite joke has been cited in print since at least 2001.
 
   
Scatty—Internet Jokes (March 9, 2001)
Have you seen the dynamite website?
Yes, it really blew my mind.
   
Yahoo! Answers (April 13, 2008)
Its kids time folks are these funny?
(...)
Have you seen the dynamite website?
Yes, it really blew my mind.
   
XciteFun.net
STUPEFIED - Have you ever seen?
Post by suchitra » Nov 21, 2008
(...)
Have you seen the dynamite website?
Yes, it really blew my mind.
     
Google Books
The Mammoth Book of Really Silly Jokes:
Humour for the whole family
Edited by Geoff Tibballs
London, UK” Constable & Robinson Ltd
2011
Pg. ?:
Have you seen the dynamite website?
Yes, it really blew my mind.
 
Twitter
flavia
@midnight_army
@DaisyPhoebeT Have you seen the dynamite website?
Yes, it really blew my mind. Hahahaha
12:10 AM - 17 Sep 2012