Dont Worry Government, I Got This Porn Filter Sorted
> Any request that is denied by OpenDNS is then allowed by our DNS server, and any request allowed by OpenDNS is blocked by us.<p>The most interesting part of this to me is using multiple DNS providers to determine which category the site is in. It's both simple and effective.<p>If they actually go ahead with this plan in the UK and it's implemented similarly (eg. via DNS rather than IP blocking), somebody should make a list of what's blocked. Go through the top N sites and for each run a DNS lookup from both a filtering DNS server and also a couple non-filtered ones (ex: Google DNS[1]) then compare the results[2].<p>Bonus points if someone builds a way to crowd source the data so that it gets logged from multiple DNS servers round the world.<p>[1]: <a href="https://developers.google.com/speed/public-dns/" rel="nofollow">https://developers.google.com/speed/public-dns/</a><p>[2]: This would need to do more than a plain A == B as each address could resolve to multiple IP addresses.