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i wrote a new blog article last week, and as always was indexed immediately by google (in couple of hrs) it ranked on page 1 for its keyword. I checked the page for 3 days and it was still on page one.
...then on day 4, i typed the keyword in google, gone from page 1, i than did a site search for that page, the page has disapeared from google index completely, checked all the other pages, they are all fine and ranking well as usual.
i wrote a new page on a different topic, it got indexed already,
any clues as to what could have happened to that page? its 2 days now and still no sign of that page in google. i spend quite some time writing the content and it was all orignal.
there's no 'official' explanation that I'm aware of, but the way I look at it, Google gives you the 'benefit of the doubt', then spiders a few more pages of related content, and realizes they were too generous, then finally, after a complete 'cycle' or two of soidering yours and related sites, a true picture starts to emerge.
My theory (and I'm not entirely alone wth it!), may be utterly wrong ... but it fits the facts :)
1) If this new web page were on page 1 of the SERPs, what kind of CTR would it have.
2) What kind of bounceback rate would they have (do users find this page useful and relevent for that particular keyword phrase for which they might naturally rank after some time and inbound links. They may even be calculating some type of initial relevance score - possibly one of their hundreds of ranking factors - that they can use in their algorithm until such time that the page can actually rank on it's on).
3) It gets fresh content to page 1 that might be breaking news or a fad or hot topic.
4) It keeps the SERPs diverse, mostly showing old proven results with a sprinkling of fresh, untested content. The SERPs would be pretty boring if I could search for the same keyword every day for several weeks in a row only to see the same 10 results day after day because we all know changing your rankings can sometimes be like watching grass grow.
Like Tedster said, if that page gets LOTS of clicks and starts accumulating lots links it might stay there and outrank other old, stale content. But if not, it will likely quickly fade.
There are probably 50 reasons they do this and different things Google is testing and monitoring while the new content appears on page 1. It probably gives them an initial idea as to the quality of the content on the page. yada yada yada
[edited by: ZydoSEO at 4:34 am (utc) on Dec. 30, 2008]
i am aware of the fact that fresh content usually rank higher and than it corrects itself, however i never see them completely disapear from the google index, this would be the first time i am observing it.
rainborick, Quadrille can you confirm if the blog articles you guys are talking about, do they disapear from the google completely or are just shoved at the back during the correction
At a guess, I'd say it's most common for blog pages because many blogs are updated frequently - which qualifies them for Minty Fresh, and yet they also often simultaneously lack the PageRank etc. necessary for re-crawls (either in terms of depth or frequency) by the standard Googlebot. So there can be a period of time when a page seems to "disappear" until the standard Googlebot revisits the site.
I have often wondered if this is an intentional +900 boost or something by Google to give new sites visibility for a short time.