for 18 years the creator of the best URL filter in public domain

URLfilterDB offers various internet filter solutions.  ufdbGuard for Squid works with the Squid web proxy and for solution providers other products are also offered.

ufdbGuard for Squid blocks access from PCs and smartphones to undesired websites and has safety features to make browsing safer and to block remote access.  ufdbGuard supports configuration of groups with different web access policies, SafeSearch enforcement, SSH tunnel detection, safer HTTPS traffic, time-based access rules and much more.  The URL filter blocks Tor, UltraSurf, SSH tunnels, VPN tunnels and remote access software used to connect to a PC at home whilst at work.  ufdbGuard for Squid, just like the Squid web proxy, is Free Open Source Software.

ufdbGuard for Squid has no backdoors and does not track users, not even with "anonymised data".  Since the source code is freely accessible you can verify yourself that ufdbGuard only keeps statistics and keeps only track of new URLs which are not yet part of the URL database.

For solution providers there are specific products: a URL classifier in a C library (ufdbGuard API), a URL classifier with a REST interface (ufdbGuard REST API), a URL classification server to support phones and small devices (Query Server) and a technology package with a substantial part of our intellectual property.

ufdbGuard for Squid is Free Open Source Software   and can also be downloaded from SourceForge