CleanBrowsing offers both: blocking and filtering features via it's DNS content filtering service. Schools and libraries have the option to use predefined filters, or create their own rules.
Features include:
- Add and remove domains via the custom whitelist and blacklist feature.
- Filter content according to predefined, or custom, rules.
- Easily select from 19 predefined filters (e.g., Pornography, Gaming, Social Media, etc..)