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What is Error 451?
Why do we need Error 451?
UK Blocking Orders

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Legal Volunteers

We need legal volunteers to transcribe and analyse blocking orders and work out which websites they block and why. If you would like to help, please contact us at volunteer@openrightsgroup.org or call on +44(0) 207 096 1079.

ISPs

If you are an ISP, you can make website blocking more transparent by using the 451 code if you have received court orders. To discuss working together on this, please get in touch with our Legal Director, Elizabeth Knight: elizabeth@openrightsgroup.org

Join ORG

By joining ORG, you can support projects that expose internet censorship - like Unavailable 451 or Blocked. 

People from outside the UK

Tell us about blocked sites and the legal position of website blocking in your country by emailing press@openrightsgroup.org

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