A transparency campaign from

Internet Filtering Statistics

Not only adult content is being blocked

The domains in these categories were identified by keyword searches and then double-checked by hand to ensure the categorisation was accurate.

Sites relating to keywords related to Number of blocked domains identified Number of domains still blocked Current ISP blocks
Addiction, substance abuse support sites 185 91 287
Charities and non-profit organisations 98 17 24
Counselling, support, and mental health 112 77 191
Domestic violence and sexual abuse support 59 14 42
LGBTQ+ sites 114 39 121
School websites 161 23 52

The domains in these categories were identified by keyword searches.

Sites relating to keywords related to Number of blocked domains identified through search Number of domains still blocked Current ISP blocks
Building and building supplies 58 23 54
CBD oils, CBD-related, and hemp products 112 91 505
Drainage and drain unblocking services 99 2 2
Photography sites 1372 513 1340
Religious (Christian) sites 37 8 19
Weddings and wedding photographers 4012 1480 3152
VPN sites 23 15 55

All kinds of sites are reported as blocked

In March 2019, we looked at all the domains that people had reported to an ISP through Blocked as an incorrect block. We categorised all the domains.

Category for Submitted Reports Number of reported domains Number of domains unblocked after reporting
Counselling, Support, and Mental Health 122 98
Charity and non-profit 68 55
Advice Sites (Drugs, Alcohol, Abuse) 52 44
Music 50 41
Weddings and Wedding Photographers 44 40
Tech, IT and Software 41 21
Adult, Pornography, and Escort Services 40 1
LGBTQ+ 40 27
Alcohol-related (non-sales) sites 36 8
Sport and leisure 35 30
Arts, Crafts, and Sculpture 32 24
Builders and Building Supplies 32 27
Household, household repairs and DIY 32 32
Health 25 19
Alcohol 23 4
View all ...

ISP Responses to reports

Network/Year Unresolved non-policy block count Unresolved policy block count Resolved & blocked against policy
BT
2017 2 14 0
2018 4 7 2
2019 0 0 0
2020 0 3 0
2021 0 0 0
BT-Strict
2017 0 1 0
2018 1 3 0
2019 0 2 0
2020 0 0 0
2021 0 4 0
Cloudflare family
2020 0 5 0
2021 1 9 0
EE
2017 0 0 0
2018 0 0 0
2019 0 1 0
2020 0 0 0
2021 0 0 0
O2
2017 2 3 0
2018 2 8 0
2019 0 5 0
2020 0 3 0
2021 0 8 0
OpenDNS
2020 0 2 0
2021 0 0 0
Plusnet
2018 1 1 0
2019 0 12 0
2020 0 13 0
2021 0 8 0
Sky
2017 1 1 0
2018 7 1 0
2019 0 2 0
2020 0 0 0
2021 0 0 0
T-Mobile
2020 0 0 0
TalkTalk
2017 1 12 0
2018 24 24 0
2019 0 13 0
2020 0 14 0
2021 2 33 0
Three
2017 0 0 0
2018 1 0 1
2019 0 0 0
2020 0 0 0
2021 0 0 0
VirginMedia
2017 1 1 0
2018 10 15 0
2019 0 25 0
2020 0 25 0
2021 0 15 0
Vodafone
2017 0 0 0
2018 2 0 0
2019 0 0 0
2020 0 0 0
2021 0 0 0

Reply stats by ISP

Network/Year Reports Sent Total replies received Avg reply interval
BT
2017 168 0
2018 223 107 72 days
2019 161 304 20 days
2020 106 197 12:18:01.580780
2021 46 83 17:12:32.442402
BT-Strict
2017 12 0
2018 115 54 84 days
2019 146 275 30 days
2020 102 204 6 days
2021 32 48 1 day
Cloudflare family
2020 18 3
2021 16 0
EE
2017 37 0
2018 106 45 108 days
2019 99 190 100 days
2020 56 77 54 days
2021 16 29 12 days
O2
2017 58 0
2018 99 0
2019 83 65 41 days
2020 63 59 7:10:55.112446
2021 30 21 1 day
OpenDNS
2020 31 135
2021 24 95
Plusnet
2018 21 0
2019 66 0
2020 38 0
2021 17 0
Sky
2017 144 0
2018 152 50 106 days
2019 142 175 155 days
2020 72 108 1 day
2021 7 16
T-Mobile
2020 1 1
TalkTalk
2017 34 0
2018 230 0
2019 185 154 26 days
2020 110 111 3 days
2021 44 3
Three
2017 26 0
2018 80 16 97 days
2019 135 207 55 days
2020 79 161 6 days
2021 19 41 16:26:03.143284
VirginMedia
2017 27 0
2018 99 6 11 days
2019 93 21 13 days
2020 125 0
2021 41 14
Vodafone
2017 44 0
2018 59 17 21 days
2019 118 126 238 days
2020 89 88
2021 23 23

Alexa top 100,000 sites

Blocked sites as a proportion of total sites checked

ISP Blocks by top-level domain

.AC.UK domain

.CO.UK domain

.COM domain

.ME.UK domain

.ORG domain

.ORG.UK domain

.UK domain

Misc UK domains