diff --git a/README.md b/README.md
index a5fcea440de5a197a2f1f97454e0b4fa2c48afaa..21a85bd8c74f04524b5b2c5df79fceb2dcbb6e5d 100644
--- a/README.md
+++ b/README.md
@@ -6,3 +6,6 @@ A fork of [packetdrill](https://code.google.com/p/packetdrill/) which adds suppo
 and generic bugfixes, espcially several fixes required to get packetdrill working on FreeBSD.
 
 There are some papers ([;login: October 2013](https://www.usenix.org/system/files/login/articles/10_cardwell-online.pdf), [USENIX ATC '13](https://www.usenix.org/system/files/conference/atc13/atc13-cardwell.pdf)) and a presentation ([ICCRG IETF87](https://www.ietf.org/proceedings/87/slides/slides-87-iccrg-1.pdf)) describing packetdrill.
+
+The status of continous integration testing is available from [grid](http://212.201.121.110:38010/grid) and [waterfall](http://212.201.121.110:38010/waterfall).
+If you are only interested in a single branch, just append `?branch=BRANCHNAME` to the URL, for example [waterfall](http://212.201.121.110:38010/waterfall?branch=master).