“Have you seen the umbrella website?”/“Yes, but it went right over my head.”

An umbrella website pun is:
 
Q: Have you seen the umbrella website?
A: Yes, but it went right over my head.
 
The umbrella joke has been cited in print since at least 2001.
 
   
Scatty—Internet Jokes (March 9, 2001)
Have you seen the umbrella website?
Yes, but it went right over my head.
   
Yahoo! Answers (April 13, 2008)
Its kids time folks are these funny?
(...)
Have you seen the umbrella website?
Yes, but it went right over my head.
     
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 umbrella website?
Yes, but it went right over my head.
 
Twitter
Loudmouth T.I.E
@LoudmouthUK
Have you seen the Umbrella website? Lots of info on Sexual health services for Birmingham & Solihull https://umbrellahealth.co.uk/  #ClickTestSend
11:13 AM - 28 Feb 2017
(This is the only hit on Twitter, but it does not appear to be the joke.—ed.)