Really Cool, I have set up something similar for my family and is paying $20 every month for VPS, I have tried NextDNS and found it be really useful and considering the pricing structure which you mentioned in the comments, your product seems to be a far more affordable option. A few suggestions:
1) Consider launching an App for managing configurations or at least make the current web app a PWA
2) Allow users to create duplicate configurations
3) In the logs section of the analytics page, I saw that some blocked domains were being resolved, it was saying that the domains were manually whitelisted(they were not)
4) Allow adding custom hosts file sources
5) You can create a Windows/MacOS app for updating dynamic IP address(similar to the one provided by OpenDNS)
6) You can give a button to whitelist domains in the log section, just like the one provided by the PiHole in the Query page of its web UI
7) Allow adding multiple domains to whitelist & blacklist at once
1) Consider launching an App for managing configurations or at least make the current web app a PWA
2) Allow users to create duplicate configurations
3) In the logs section of the analytics page, I saw that some blocked domains were being resolved, it was saying that the domains were manually whitelisted(they were not)
4) Allow adding custom hosts file sources
5) You can create a Windows/MacOS app for updating dynamic IP address(similar to the one provided by OpenDNS)
6) You can give a button to whitelist domains in the log section, just like the one provided by the PiHole in the Query page of its web UI
7) Allow adding multiple domains to whitelist & blacklist at once
8) Allow regex and wildcard blocking
9) Mobile UI is not 100% responsive