Hi, I use a paid subscription of SafeDNS. It can filter websites under many categories including adult, malware, phishing, ads and trackers. We can customize the block page too. I link it with my dyndns host name to get web filter at router level (This step is not required if router has ddwrt firmware or the ip is static). We can also enforce safe search for search engines. It provides category wise statistics for a chosen period. There is also a windows client software. Different profiles can be created with different categories of websites to be blocked. We can link one profile with the windows client and another profile with the router. The response to any query via e-mail is quick but they must improve their response time to any unblocked website submitted via their web form.