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Supports DNS rewriting based on response IPs #5199

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opened 2026-03-04 05:54:47 -05:00 by deekerman · 3 comments

deekerman commented

2026-03-04 05:54:47 -05:00

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Originally created by @HX-Technology-LLC on GitHub (May 12, 2024).

Prerequisites

I have checked the Wiki and Discussions and found no answer
I have searched other issues and found no duplicates
I want to request a feature or enhancement and not ask a question

The problem

CDN providers such as Akamai and cloudflare, they have many IPs and they are common to different websites, some IPs have fast connection speeds and some have slow connection speeds, can we support rewriting based on the response IPs and IP range, to rewrite all of them to fast response IPs?

Proposed solution

Improve dns rewrite

Alternatives considered and additional information

No response

Originally created by @HX-Technology-LLC on GitHub (May 12, 2024). ### Prerequisites - [X] I have checked the [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions) and found no answer - [X] I have searched other issues and found no duplicates - [X] I want to request a feature or enhancement and not ask a question ### The problem CDN providers such as Akamai and cloudflare, they have many IPs and they are common to different websites, some IPs have fast connection speeds and some have slow connection speeds, can we support rewriting based on the response IPs and IP range, to rewrite all of them to fast response IPs? ### Proposed solution Improve dns rewrite ### Alternatives considered and additional information _No response_

deekerman

2026-03-04 05:54:47 -05:00

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deekerman commented

2026-03-04 05:54:59 -05:00

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@MadSpindel commented on GitHub (May 13, 2024):

Do you mean you only want to use the option "Fastest IP address" for specific CDN providers? And for the rest, you want to use Load-balancing or Parallel requests?

If so, if we had #6800, we could use CDN lists and point them to another Adguard Home instance with the "Fastest IP address" enabled. Also #3342 would be useful, and maybe #5144

@MadSpindel commented on GitHub (May 13, 2024): Do you mean you only want to use the option "Fastest IP address" for specific CDN providers? And for the rest, you want to use Load-balancing or Parallel requests? If so, if we had #6800, we could use CDN lists and point them to another Adguard Home instance with the "Fastest IP address" enabled. Also #3342 would be useful, and maybe #5144

deekerman commented

2026-03-04 05:55:03 -05:00

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@agneevX commented on GitHub (May 14, 2024):

some IPs have fast connection speeds and some have slow connection speeds, can we support
rewriting based on the response IPs and IP range,

I hope you understand how CDNs work, in particular how load-balancing works with very low TTLs for IP addresses returned. So what you're asking for is simply not possible.

The best option for you is public resolvers that support ECS so you're able to connect to servers closer to you.

@agneevX commented on GitHub (May 14, 2024): > some IPs have fast connection speeds and some have slow connection speeds, can we support rewriting based on the response IPs and IP range, I hope you understand how CDNs work, in particular how load-balancing works with very low TTLs for IP addresses returned. So what you're asking for is simply not possible. The best option for you is public resolvers that support ECS so you're able to connect to servers closer to you.

deekerman commented

2026-03-04 05:55:03 -05:00

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@ainar-g commented on GitHub (May 17, 2024):

Duplicate of #6325

@ainar-g commented on GitHub (May 17, 2024): Duplicate of #6325

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starred/AdGuardHome#5199

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