Data notices

Credit the work. Keep the claims precise.

Licensed lists help decide what to measure next. Is It Blocked? keeps their notices here and never turns list membership into a blocking verdict.

Indexed discovery source

GFWList

Source: GFWList. License notice: GNU LGPL 2.1.

Modification notice: Is It Blocked? decodes, filters, normalizes, deduplicates, and shards host rules for private scan discovery. It does not redistribute the original AutoProxy list.

The upstream list cautions that it is unlikely to fully represent rules deployed by the Great Firewall. Every match is therefore shown only as a discovery hint.

Indexed discovery source

v2fly/domain-list-community

Source: Domain List Community.

MIT License

Copyright (c) 2018-2019 V2Ray

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Indexed discovery source

1andrevich/Re-filter-lists

Source: Re:filter lists.

MIT License

Copyright (c) 2024 Andrevich

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Is It Blocked? normalizes domains_all.lst into private Russia-focused scan seeds. Its IP and community variants remain separate, and membership never becomes a verdict.

Revision monitoring only

Sources not copied into the index

Citizen Lab test lists, GreatFire Blocky, GFW Report, and wongsyrone/domain-block-list are checked only for revision availability due to their terms or source condition. runetfreedom blocked-GeoIP and ipverse ASN-prefix releases are monitored as network context; their records are not copied into the domain index.