My server received about 30 hits earlier today across several sites from two yahoo ranges that are new to me, although they were registered in 1999 and 2007. All hits seemed to be home page.
The general ranges are:
63.250.192.0 - 63.250.223.255
98.136.0.0 - 98.139.255.255
Activity was in the ranges below but may be wider:
63.250.192.0 - 63.250.193.255
98.137.120.0 - 98.137.129.255
Typical rDNS (all seemed to be ygrid):
gsbl31825.blue.ygrid.yahoo.com
As far as I can tell the UAs were all:
Mozilla
The activity looks odd for either dsl or yahoo bots: I often get yahoo bots with no UA at all but this looks more like a cloud bot.
Are these ranges (or any part of them) a new cloud?
I have currently blocked the secondary ranges mentioned above.