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Every day I get a little more convinced Yahoo doesn't know why either.
lol. Arriving at the same conclusion.
It is sad to see for my site, Yahoo is returning URL only listings without cache or description. But looking closer it is showing "Title Only". I couldn't stop but laugh on seeing wrong Title for few pages. Like, "weve got it!", where the actual Title is entirely different. Weird.
Last time Yahoo had a big(ish) update my main site page count dropped considerably - only to go up in a couple of days time.
This looks like it might be happening again.
So Yahoo might not have a full index out there at the moment.
In this thread:-
Softwareengineer99 did some searches to check Google index size against Yahoo with the following results on 22nd August:-
[Shoping] Yahoo 1,540,000,000 G 318,000,000
[hosting] Yahoo 631,000,000 Google 123,000,000
[network] Yahoo 1,130,000,000 Google 589,000,000
[social] Yahoo 673,000,000 G 307,000,000
[Wedding] Yahoo 251,000,000 G 42,700,000
[antidisestablishmentarianism] Yahoo 80,000 G 36,100
["do no evil"] Yahoo 275,000 G 82,400
[yahoo] Yahoo 869,000,000 G 177,000,000
[google] Yahoo 480,000,000 G 228,000,000
If you do these searches at the moment you will see that Yahoo perhaps have either introduced a massive filter - or the full index is not live.
With Webmasterworld only having 46,000 odd pages indexed I think it is more likely the whole index is not live at the moment.
Although I might just be hopping :)
It's difficult to say what is happening. I think it's a temporary movement because the index is not so fresh.
It seems to me that serp is not based on page optimiztion, but primarly on links.
I see sites that are ranking fine because they did a good link popularity one years ago.
It's like Yahoo is indexing sites considering the link popularity movements...
The quality is not so good: no fresh results, still several real spammer sites.
Different search results.
Different results for pages listed from site.
We are getting a lot of page listings with just the url as the title.
Even stranger is that we see alot of this for pages from site return:
Are they crawling there own search results?
Result set 1: This is the incomplete index. Results that normally have over ten million results only have a couple hundred thousands. This index we are missing and is returning crappy results.
Result set 2: Normal page returns and apprears to show a positive change in SERPS. Looks like the completed updated index.
I am begininning to hate Yahoo. Thank God for Google!
By the way, Yahoo! does not show the same search results for all searchers. I think it shows different results depending on which country you are surfing from. (I'm not sure if this has already been discussed here, for I'm not a frequenter of this forum.)