https://community.dynatrace.com/t5/Real-User-Monitoring/The-length-of-the-URL-for-this-request-exceeds-the-configured/m-p/274476#M6848 <P>Hi!</P><P>You should <A href="https://one.dynatrace.com" target="_blank">open a support ticket</A> to investigate it and determine the next steps.</P> Sat, 05 Apr 2025 16:59:48 GMT yanezza 2025-04-05T16:59:48Z https://community.dynatrace.com/t5/Real-User-Monitoring/The-length-of-the-URL-for-this-request-exceeds-the-configured/m-p/274427#M6847 <P>— is caused by the <I>entire path segment</I> of the URL exceeding the maxUrlLength setting in the IIS or ASP.NET configuration.</P> <H3>Key Context:</H3> <UL> <LI><STRONG>Default </STRONG><STRONG>maxUrlLength</STRONG> in ASP.NET is <STRONG>260 characters</STRONG>.</LI> <LI>This <STRONG>does not</STRONG> include query string parameters (?key=value) — it's strictly the <STRONG>path</STRONG> portion after the domain name.</LI> </UL> <H3>Caused By:</H3> <P><STRONG>Dynatrace Real User Monitoring (RUM) script injection</STRONG>, specifically the way ruxitagent.js is loaded and metadata is encoded for session tracing.&nbsp;&nbsp;Dynatrace agent is not tuned to respect URL length limits.</P> Wed, 09 Apr 2025 10:44:15 GMT https://community.dynatrace.com/t5/Real-User-Monitoring/The-length-of-the-URL-for-this-request-exceeds-the-configured/m-p/274427#M6847 nbarry 2025-04-09T10:44:15Z https://community.dynatrace.com/t5/Real-User-Monitoring/The-length-of-the-URL-for-this-request-exceeds-the-configured/m-p/274476#M6848 <P>Hi!</P><P>You should <A href="https://one.dynatrace.com" target="_blank">open a support ticket</A> to investigate it and determine the next steps.</P> Sat, 05 Apr 2025 16:59:48 GMT https://community.dynatrace.com/t5/Real-User-Monitoring/The-length-of-the-URL-for-this-request-exceeds-the-configured/m-p/274476#M6848 yanezza 2025-04-05T16:59:48Z