Mapping ISPs Website Blocking Technologies


I reverted to the Hathway DNS and I saw the ACCESS DENIED message. So that's confirmed then, they use DNS lookups to redirect you to the notice.
Another ISP which uses Netsweeper, Jio. It should be mentioned that they only recently started blocking websites and they have gone with Netsweeper indeed. According to the page source posted by @a2642605 Now even Jio has started blocking websites.

This leads me to believe that most ISPs are using Netsweeper to enable website blocking and it seems to be the industry standard for it as well. People should be made aware about this as they have the right to know what is being used to impede their free speech.

@Sushubh Please see how can this information be disseminated to more people.