I assume this doesn't block porn on reddit or non-porn websites?

No, it just blocks DNS requests from a list of porn hostnames.

ranger_danger 3 days ago | parent | next [-]

Many browsers/apps now will ignore the system/DHCP-provided DNS server and use their own though (often via TLS so you can't block it easily)... so while this might work for some situations, I can't in good conscious call it a great solution.

	▲	waltbosz 3 days ago \| parent [-]
		Wow I did not know that. I agree. It's not a very robust solution, but it's better than nothing at all . And it's annoying sometimes. One thing I found is that it somehow forces Google safe-search, which appears to block some non-pornographic search results.

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ImJamal 3 days ago | parent | prev [-]

I understand that. I just wasn't sure if Reddit and co used specific subdomains for porn images/videos.