The guessPlugin method from https://github.com/jenkinsci/display-url-api-plugin/blob/master/src/main/java/org/jenkinsci/plugins/displayurlapi/DisplayURLContext.java is a bottleneck and I can’t imagine on Jenkins instance with a lot of plugins (i.e huge classloader)
pr ready https://github.com/jenkinsci/display-url-api-plugin/pull/27