Joined-Up Thinking has 249 pages.
Fundamentally, nothing. Web pages are usually individual files residing on a web server. The only thing that really ties them together is links.
"Charlotte's Web" by E.B. White has approximately 192 pages.
Web pages
A Tangled Web has 324 pages.
Web of Dreams has 426 pages.
Web of the Romulans has 220 pages.
Web of the City has 216 pages.
The right answer is that the World Wide Web is not a computer network, but a bunch of web pages linked together on a computer network call the Internet. So the answer is NO.
There is no restriction on who can create web pages
Spider's Web - novel - has 250 pages.
The Web of Easter Island has 191 pages.