I would say Dirtfish is doing what Autosport used to do, but with an even stronger team and more enthusiasm and focus on rallying, whereas in Autosport it was buried behind MotoGP and F1, at least for me it was impossible to follow them on twitter for instance.
WRC.com hasn't really done any useful journalism in the recent years. Sometimes they have broken news as the first source, but not always. At least they have never had any "long read" articles.