One of the sleuths at WebmasterWorld noticed that Microsoft updated the IP ranges for the spiders, or some of them, formerly known as MSNBot and now known as BingBot.
The DNS for IP ranges 157.55 and 157.56 have been updated. He said:
I've been keeping a desultory eye on the MS 157 ranges for some time. Not sure when it actually happened - probably within the past few weeks - but MS seem to have taken notice of complaints - or just finally got their act together.I had a handful of IPs tagged as msnbot in my database from a previous DNS scan some time back. The new ranges/sub-ranges (about 100) extend this range but also, in some cases, extend or reduce previously logged ranges. The list I now have, taken from DNS scans of the MS DNS servers, is included below. I think the list is accurate but I cannot guarantee it.
If you are using any software that detects IPs, you may want to check out the thread.
Forum discussion at WebmasterWorld.
