URLFilterService is a free internet filter application for Microsoft Windows operating systems. It natively filters requests in Microsoft Edge and Internet Explorer but any other application is supported, locally and remotely, through its DNS filter engine.
UFS browser based filter extend your control over Microsoft Egde and IE by allowing you to:
disable HSTS (requires Windows 8.1 or later);
remove referer from request header;
spoof user agent string.
UFS dns based filter works both with ipv4 and ipv6 addresses, any external DNS resolver, any kind of device (tablets, phones, smart-tv, game systems, etc), and integrates per ip filtering rules (multi user).
UFS has a default/deny option, giving you the chance to resolve hosts or connect to pages only if they are already present in a known category.
UFS does not collect any kind of data: it works completely on your computer and no data is sent outside your network except allowed request for DNS name resolution.