Khabaristan Times with more than 12,000 followers on the Facebook said no reason has been given by authorities before blocking the site.
"There hasn't been any official notification from any regulatory authority regarding the website being banned, but it can't be accessed anywhere in Pakistan," it said on Facebook page.
The website is apparently still available to users outside Pakistan.
The popular site was blocked in the wake of controversy about five activists and bloggers who went missing earlier this month but at least three of them have returned or their families informed that they were safe.
The Facebook page featuring several satirical stories shows that Khabristan times was parodying army and politicians.
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