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Yahoo changing SERPs depending on no. of results per page

web results from google

         

Adam_C

11:44 am on Sep 24, 2003 (gmt 0)

10+ Year Member



I've just seen something very strange...

The SERPs on Yahoo (web/google results) are changing depending on the number of results displayed per page.

I've only seen this on one search phrase, but it could be effecting more.

I can't understand this at all. I've checked the 10 Google datacenters (that I know of), plus Ink', AV and FAST, and nothing looks like this.

The weird SERP is only occuring on "20 results per page", which I believe is the default. If you set it to anything else, you get the normal SERP.

Very, very strange indeed.

Anyone know what's going on?

Chndru

12:05 pm on Sep 24, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



10 Google datacenters

And then, there is a eleventh [webmasterworld.com] ;)

Adam_C

12:11 pm on Sep 24, 2003 (gmt 0)

10+ Year Member



OK - checked the 11th, and its still a mystery!

textex

2:37 pm on Sep 24, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Results for one term in SERPS I monitor have been showing very different results since before the summer. My preferences were at 20. I just switched it to 10 after reading this thread and SERPS went back to being identical with Google.

Strange....

Adam_C

2:46 pm on Sep 24, 2003 (gmt 0)

10+ Year Member



Yahoo! must be up to something

Adam_C

10:41 am on Sep 29, 2003 (gmt 0)

10+ Year Member



Have emailed Yahoo about this.

Will post if I get a response.

Interestingly, over the weekend the site that usally appears at no. 2 in Google for this SERP now appears at 9 in Yahoo - previously nowhere to be seen.

Possibly a reaction to my mail - but I doubt it.

percentages

5:29 am on Sep 30, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



Yahoo has been using a different set of filters on the Google results for at least 5 months now.

As far as I can tell Yahoo puts less weight on backlink anchor text and more weight on sites listed in the "appropriate", as it sees it, category of the Y! directory.

I like the Y! serps better than the G serps, but I still think the INK serps are better than both.....so come on Y! flip that dang switch already!

ShahinFard

8:22 am on Sep 30, 2003 (gmt 0)

10+ Year Member



I've seen the same thing.

Adam_C

8:51 am on Sep 30, 2003 (gmt 0)

10+ Year Member



Just to clarify this. The Listings change dependant on the number of results...
search for "widgets" with 20 results per page
www.widget-heaven.com is #1

search for "widgets" with 50 results per page
www.widgets-r-us.com is #1 (same as Google)

(example URLS!)

Now this doesn't make sense, why should the *number* of results per page affect the listings that are shown?

Also, for all the SERPs I have checked it is only this one that comes up different to Google!

percentages

10:20 pm on Sep 30, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



Adam_C,

I see this for almost every "common" search term I try.

Try some one word terms like God, Hotels, Cars...etc. With 100 results displayed you should see clean Google, try it on 20 results and you should see the Yahoo "filtered" version.

By comparing the differences you can begin to see what the Y! filters on the 20 results version are doing.

My guess is that most people leave the default at 20 per page....so this is pretty important for those targeting very common search terms. Once you get into less common 3 or 4 keyword terms Yahoo doesn't seem to filter regardless of the number of results displayed.

George

3:40 pm on Oct 20, 2003 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Not sure if I can add anything, but confusion. Thought it worth raising this thread again however.

On one phrase I follow I am in the top 4 for every major s/e. (ink, Google, fast).

I clearly do not follow it well enough, because I have only just spotted on Yahoo UK I am 10+ Yuk!

I do better on the directory listings than on the web listing. (So not directory weighting) Also, The top 6 are otherwise identical to google, only this one site dropped down. So what can it be?
It is not the domain extension, (trust me) and when I look on UK only listings it is possibly even worse.

Being beaten by sites that cannot spell "dicount" :),(better watch my spelling now) and two separate listings from the same site, one at 7 and another at 17. (same domain, different sub domains).

One relief is that these results cannot last, but it would be nice to know what is happening.