JWplayer point me to a Dash validater
http://dashif.org/conformance.htmlMPEG-DASH
I paste a url of a running live stream and it says :
Start XLink resolving
=====================
XLink resolving successful
Start MPD validation
====================
MPD validation successful - DASH is valid!
Start Schematron validation
===========================
location="/*[local-name()='MPD' and namespace-uri()='urn:mpeg:dash:schema:mpd:2011']">
If MPD is of type "dynamic" publishTime shall be defined.
Schematron validation not successful - DASH is not valid!
BUILD SUCCESSFUL
Total time: 4 seconds