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Did Google remove domains if they are hosted with IIS 6.0?

10:12 pm on Mar 20, 2006 (gmt 0)

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10+ Year Member

joined:Aug 13, 2004
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Hi Guys

I January, I saw 3 sites that I work for, disappeared from Google index.
After lots of hours of Research, IP scan, Pages Reviews and etc., I noticed that the only common point is those domains are hosted on a microsoft server with IIS 6.0.

Last week I found one of them back in GG since the Website was moved in a Apache hosting solutions. More, the site came back with is same old content - not with a fresh crawl from google.

This situation let me suspect that GG seems to have problem to parse the headers of IIS. Especially with the "Modification-Date" header.

So my question to all readers of webmasterword is :
- If Your site have recently disapear of GG, does that site is Host on Microsoft-IIS/6.0?

May Be I'm loose my time on that path and your.
Your Answer should let me see.

Thanks to all

10:51 pm on Mar 20, 2006 (gmt 0)

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I have approx 100 sites on IIS and only 1 was hit by the supplimental problem and it came back last week.
10:54 pm on Mar 20, 2006 (gmt 0)

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WebmasterWorld Senior Member tedster is a WebmasterWorld Top Contributor of All Time 10+ Year Member

joined:May 26, 2000
votes: 0

I work with several sites, some small and some big, that are hosted on IIS 6 -- and none have suffered.

But in working with IIS sys admins and developers, I have noticed that there are several pitfalls that seem to be commonly made on IIS that can also make for indexing troubles.

The biggest culprit is in placing a redirect -- a 302 [temporary] is the default. You must check an extra box if you want a 301 [permanent] redirect. 302 redirects can create all kinds of canaonical problems, dupe content, on and on. If the page will not be coming back to a url, the redirect whould be a 301.

Essentially, many of the technical problems, listed in the links from the following thread, are extremely easy to create by accident on IIS:


9:59 pm on Mar 21, 2006 (gmt 0)

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joined:Aug 13, 2004
votes: 0

Thank Trimmer and Tedster,

Those your Web Server answer to "if-Modified-Since HTTP header"?


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