Hi Jeff.
That makes me wonder: a.) Is there a SURBL (outside of surbl.org) available already specially for website spam?
Now an answer to that question is even more interesting to me, by the way :)
In principle it may be useful, but we want SURBLs to stay focussed on mail spam.
May I suggest that you try checking web spams with SURBLs and see what the hit rate is like. If the hit rate is significantly less than for mail spam, then it may not be worth using our data (and generating the DNS queries) for the website checking application.
Will do so. I'm currently preparing the logged data and will see what rate we get for that. Will report back when I have the results.
Bye, Mike