Ok I found this one googling verifier instead of verification http://bitcoinmaniac.com/verify/ because Google is unfair.
And it gives the same result as my code
What are some others?
And with these verifiers, you have to check the results of old rolls, monitor any code changes. Interesting hassle for non-coders. With PrimeDice's limited history you need to record old rolls yourself, as the 24 hour secret reveal thing will clear that history if you keep gambling? Is there a full user history anywhere?