At least for the Roslyn based rules the URL’s explaining the rule are routed to: https://rules.sonarsource.com/ *. This endpoint seems gone. If this is intentional, please consider reroutes updating the URL’s in the .NET Roslyn rules (and other if applicable)

Hi, Can you provide your context for this? Is this in SonarQube for IDE or somewhere else? For your questions, please see this update: [image] Rules.sonarsource.com not reachable anymore sonarqube-serverSonarQube Server / Community Build Hi again, Okay, her…

Sure: The Sonar analyzers are built on Roslyn (I assume you know that). Every rule contains a summary. One of those properties is a URL to navigate to for further details. IDE’s such as Visual Studio (Code) and Ryder will allow developers to navigate to those endpoints once a certain issue occurs. …

Hi, Thanks for clarifying. I’ve flagged this for the language experts since it looks like they need to take some sort of action. Ann

Hi, Thank you for reporting this. We’ve fixed this yesterday by removing the link. It will be part of the next analyzer release.

So if I understand correctly, you decided to make the documentation only available by using the Sonar plugin from now on?

The website rules.sonarsource.com that we linked was decommissioned, so we don’t have a suitable URL to use anymore from standalone NuGet packages. So as a consequence, yes. SonarQube for IDE extensions, as well as SonarQube Server/Cloud have built-in ways of showing the relevant rule descriptions. …

isn’t this kind of “closing the door” of something former openly available? If i want to - say - tell a colleague about the rules that make sonarqube such a great product. I guess there has to be an alternative (and obviously preferred by you) way of me using a web browser, to navigate to a rules-l…

Hi @daniel , Please see this thread: [image] Rules.sonarsource.com not reachable anymore sonarqube-serverSonarQube Server / Community Build Hi, Welcome to the community! Yes, we’ve taken the site down. I don’t have a lot of detail for you. Official communica…

Online reference rules.sonarsource.com is gone

Rules and Languages

ganncamp (G Ann Campbell) February 12, 2026, 1:47pm 13

Hi @daniel,

Please see this thread:

Please also keep in mind that not every SonarSourcer has a hand in every SonarSource decision.

Thx,
Ann

Topic		Replies	Views
Rules.sonarsource.com not reachable anymore SonarQube Server / Community Build sonarqube	13	1434	March 30, 2026
Rules.sonarsource.com is down? SonarQube Cloud web	1	140	February 12, 2026
Https://rules.sonarsource.com down Rules and Languages rules	5	541	March 25, 2026
External links to bug descriptions SonarQube Server / Community Build sonarqube	3	1776	July 19, 2019
Code snippets for all sonar rules SonarQube Server / Community Build sonarqube , sonarqube-ide	1	259	November 28, 2023

Online reference rules.sonarsource.com is gone

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