DNS over HTTPS (DoH)

The cluster discusses DNS over HTTPS (DoH) as a solution to ISP DNS snooping and interception, debating its privacy benefits, potential for centralized control, blocking challenges, and comparisons to traditional DNS or DoT.

📉 Falling 0.5x Security
5,904
Comments
19
Years Active
5
Top Authors
#6334
Topic ID

Activity Over Time

2008
5
2009
19
2010
15
2011
34
2012
29
2013
31
2014
69
2015
44
2016
85
2017
98
2018
526
2019
1,473
2020
1,139
2021
511
2022
620
2023
387
2024
325
2025
479
2026
15

Keywords

e.g P2P MITM STS DNS DNSSEC HTTPS cloudflare.com L3 i.e doh dns resolver isp https dot server cloudflare traffic network

Sample Comments

dvratil Oct 4, 2021 View on HN

It's DNS over HTTPS. It relies on the same system as plain DNS, so DoH won't really help in this case...

efitz Jul 28, 2025 View on HN

Not true, see answer above. Block the domain name or IP addresses of the DoH server.

uup Sep 30, 2022 View on HN

You could use DoH, which you should do anyway. No reason to leak DNS lookups to anyone.

zzzcpan Sep 12, 2019 View on HN

Drop DoH, then it could be true. As it is DoH is invented to preserve and centralize snooping on DNS.

aaomidi Apr 16, 2024 View on HN

Thing is, with DNS, the ISP can just intercept your DNS requests anyway. Turn on DoH imo

sodality2 Sep 15, 2021 View on HN

It resolves via DoH and also offers a DoH server, so the ISP cannot.

sakisv Jan 15, 2019 View on HN

Yes, this is why Cloudflare's 1.1.1.1 supports DNS over HTTPS (DoH), to avoid exactly this.You can read more about it here: https://developers.cloudflare.com/1.1.1.1/dns-over-https/

1vuio0pswjnm7 Dec 4, 2025 View on HN

Anyone who has their DNS filtered, e.g., by ISPs that redirect DNS port numbers, like hotels, can use DoH to work around the problem

int_19h Apr 10, 2021 View on HN

So long as DoH servers are configurable, why is it a problem?

detaro May 30, 2019 View on HN

DNS over HTTPS against a server you can't choose would do so, yes.