Posted by joy

MSRBot is apparently a new bot from Microsoft Research. However, the “version” of MSRbot that I was seeing last night came from, which isn’t an obvious Microsoft IP address.

In addition the user agent field only stated:


Perhaps if I was Microsoft, I’d publish the IP address the real bot is supposed to crawl from.

Update: 10/5/06: MSRBOT does belong to Microsoft Research - they placed a URL for more information in the updated MSRBOT user agent string

[tags]Web, robot, crawler, bad bot, Microsoft[/tags]

5 Responses to “MSRBOT”

  1. bruce Says:

    A bot identified as ‘MSRBOT’ has been hammering my site from the 209.133. range. I can’t imagine that it’s legitimately from Microsoft, unless they are conducting research from San Jose…

  2. joy Says:

    I don’t believe it’s Microsoft running this particular bot.

  3. James Says:

    I also got a total crawl from MSRBOT at It was preceded by a short look at robots.txt by “msnbot/1.0 (+” so it may be legit though I can not see why they are using a block of addresses out of San Jose. The msnbot crawls my site regularly as it is. I am inclined to block this one until they cough up a good reason for the additional bandwidth they are taking. I have had a few that were resistant to a robots.txt ban and had to be blocked at the firewall. MSNBOT has not always been a good netizen either.

  4. Michael Hampton Says:

    The research group running “MSRBOT” is apparently based in Silicon Valley, rather than Redmond…

  5. Freesitebuilder Says:

    I’ve had this too, using, but it shows the referrer as

    The whois gave me this:

    Search results for:

    OrgName: Abovenet Communications, Inc
    OrgID: ABVE
    Address: 360 Hamilton Ave
    City: White Plains
    StateProv: NY
    PostalCode: 10601
    Country: US

    ReferralServer: rwhois://

    So if it is the MS research bot, why does it say Blogger?

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