Transparency campaign from

Why are websites being blocked in the UK?

Mobile and broadband Internet Service Providers (ISPs) have created filters to stop under 18s from seeing harmful content online. Unfortunately, filters block many harmless websites by mistake - even sites that are aimed at children! Often website owners don't know that this is happening.

Around 3.5 million households have filters switched on, through choice, or by default. In addition, many mobile phone users have filters enabled as they are on by default.

We need people to use this tool to check and report sites that shouldn't be filtered. Not only will you be helping website owners, you will also increase transparency about filters by helping us to get a clearer picture about overblocking.

Has this site been blocked in error?

BT-Strict, TalkTalk and BT are blocking this site for customers using filters.
This site was selected from the faith curated list.

Check a website

Blocked will check if a site is being blocked by instantly running tests on major fixed line ISPs and mobile networks.

Support the project

You can join the Open Rights Group or donate to support the project.

With your help, we can correct mistakes caused by overblocking and improve transparency about filtering in the UK.

Andrews and Arnold Ltd  :Bytemark Hosting

Share your story

If your website has been blocked, please get in touch. We would like to hear from anyone who has been affected by web blocking.

Your Stories

Spread the word

Many people aren’t aware of the extent of overblocking. Please share the Blocked tool to help raise awareness and correct mistakes.

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