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Yahoo traffic suddenly stopped

June 13th around 5pm



8:59 pm on Jun 15, 2007 (gmt 0)

10+ Year Member

Sometime on June 13th my main site was hit with a 95+% drop in visits from Yahoo.com. Since I get most of my traffic from Yahoo, I took notice to say the least.

Yahoo's Slurp spider is still indexing my site constantly, so much so that I put the crawl delay in robots.txt to slow it down (after the drop in visits, thinking it was bogging down my server).

The domain in question currently has 400,000+ pages indexed in Yahoo, so it's not a banning issue as far as I can tell. Once thing I did notice that when using Yahoo's site explorer when you click on the "Cached" link under each listing, the cached page is displayed. BUT when you click the "Current Page" link at the top of the cached listing in goes to my home page instead of the current version of the cached page. Could this be part of the problem, some kind of weird redirect issue? I could not duplicate the problem with other sites in Yahoo.

This traffic drop occurred sometime around 5pm Eastern Time on June 13th (Wednesday). It was almost like a switch was pressed. The sit gets several thousand visits per day, and now it's a couple hundred or so.

I even switched over to me backup server on a completely separate web host (thinking server issue), and traffic has not increased. This pretty much isolates the problem to Yahoo's end.

I'm at wit's end.... any ideas, anyone.


8:50 am on Jul 25, 2007 (gmt 0)

10+ Year Member

" Google and Yahoo both are using different algorithms. That's why they show different results. "

Well, this is for sure, unless they copy eachoter :-)

And: this algo change is the one that puts the two algos in the highest similarity degree since the birth of both engines.

With the "move" happened the 13th of June, Yahoo! is now resembling Google even more.

They now like some sites that are Google's old favourites in my industries, and have never ranked on Yahoo!

In this transition, they have simply "forgotten" some important sites (important for both Yahoo and Google, I mean, from an historical point of view).

Which, I see, are slowly coming back in the results (hammered to 60 or 100-something positions are now climbing back to some 10 to 30-something).


10:48 pm on Jul 25, 2007 (gmt 0)

10+ Year Member

Has anyone else noted the June 13th trigger date, or was it spread out over several days?


12:33 pm on Jul 27, 2007 (gmt 0)

10+ Year Member


All of a sudden. So it was a very quick shift.

For us on the European side of the ocean, this happened actually the 14th. Surely, 14th accesses where good as always, 15th accesses immediately bad, and the 15th type of reduced traffic lasted at least up to yesterday.

We see some movements as I said, but it was a "sharp cut" from how I've seen it (consider we have several tens of thousands indexed urls on Y! therefore my stats are credible as they are based on thousands of daily clicks).

It was not a spotted spam filering on our sites only, as I saw a lot of competitors to get this lost and others are posting the same behaviour, I guess not exactly on my industry.

Still, I can't find the pattern associated to that.


12:30 pm on Aug 8, 2007 (gmt 0)

5+ Year Member

There may be a major change in yahoo algorithm on that day.


2:29 pm on Aug 25, 2007 (gmt 0)

5+ Year Member

We've been seeing a steady decline in Yahoo performance for more than a year, first mentioned in this thread: [webmasterworld.com...]

It continues to get worse, to the point of pathetic where nearly all the anemic Yahoo visits come from searches that involve our URL, or other variations on the site name.

As a comparison over the last 30 days...
Google: 760,000+ visits -- 245,000+ keywords -- 4% from variations on site name
Ask: 16,000+ visits -- 12,000+ keywords -- 27% from variations on site name
AOL: 14,000+ visits -- 8,000+ keywords -- 18% from variation son site name
MSN: 9,000+ visits -- 1,400+ keywords -- 31% from variations on site name
Yahoo: 6,417 visits -- 817 keywords -- 94% from variations on site name


7:13 am on Aug 28, 2007 (gmt 0)

10+ Year Member

Comparing to May referrals from Yahoo, I got about 10 times less hits in July and it looks like will be the same in August. Have no idea what happened. Nothing new was done from the point of optimization during this period. Just adding content.

Would be nice to know what changed in Yahoo algo!


9:27 pm on Aug 28, 2007 (gmt 0)

5+ Year Member

After months of making contact... both through people I know at Yahoo, and their official forms... up until today, everyone was saying there's no penalties on our site... today, after another submission, we get this:

"Thank you for writing to Yahoo! Search.

It has been determined that your site may not comply with Yahoo!'s
Content Quality Guidelines located at: "

Nothing has changed. Same site. Same code. More content.

The only potential "change" was an upgrade to a better host with a new cluster of load-balanced servers.

We've never, ever done anything to conflict with the guidelines.


7:57 am on Sep 16, 2007 (gmt 0)

10+ Year Member

I'm seeing the exact same thing, with the exception that it happened to me in May 2006. Was #1 for over a year for a number of competitive terms. Changed nothing that I'm aware of and disappeared over night. Was totally gone from the top 1000 for those terms for about 4 months and then came back around #60 something and have been there for the past 10 months. Still #1 or close in Google for all these terms.

I also contacted support and got the canned "you may have violated one of our quality guidelines message". Nearly a year later Yahoo still regularly crawls my site, hitting pages that haven't existed in well over a year. I've seen hundreds of other people with the same problem, but no one can find the solutions. Other than the other people who've gone through it, no one believes it's a problems and you usually get accused of doing something bad or your site really doesn't deserve to rank better than the 60+ MFA sites above you. You also get the usual lecture about Google and Yahoo using different algorithms. I've started several other threads on this topics such as this one and each time think I've got the answer but it doesn't ever pan out. [highrankings.com...] Man I sure would love to find the answer to this one! It's been frustrating to say the least.

So for my wild goose chase on this thread. I noticed several mentions of 301's. I do have the non-www url set up as a 301 redirect to the www url. Not sure when exactly I did this, but it could have been around the same time 14 months ago. Has everyone else who is experiencing this problem set up a 301 for non-www?


1:07 pm on Sep 28, 2007 (gmt 0)

5+ Year Member

Reading of hundreds of messages on the web shows that once Yahoo drops a website it is nearly impossible to get it back in - no matter how many times you write to support they send the same canned reply and it seems obvious that they do not even read the new information given to them. The best thing is to move on and focus on other search engines. Yahoo is increasingly becoming irrelevant.


7:58 pm on Sep 28, 2007 (gmt 0)

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

>>Reading of hundreds of messages on the web shows that once Yahoo drops a website it is nearly impossible to get it back in - no matter how many times you write to support they send the same canned reply and it seems obvious that they do not even read the new information given to them

Absolutely UNTRUE.

The Contractor

9:33 pm on Sep 28, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member

once Yahoo drops a website it is nearly impossible to get it back in..

I have a site that was dropped a couple/few years back. I have written/replied to the canned answers they have sent when inquiring. Twice I have gotten through to a real person finally. They both (almost two years apart) have looked over the site and cannot figure out why it is penalized (they finally admitted it was). Both told me to use the reinclusion form and to make a note of our contact. My experience has been once they have flipped the switch on a site, it seems very hard to get them to flip the switch the other way.

What's really funny is the site has three category listings in Yahoo directory for free. These were placed by the editors after they started charging and were not submitted. Two of the category listings were put up "after" the site was banned by the search entity (they must use Google to find sites).


8:01 am on Oct 30, 2007 (gmt 0)

5+ Year Member

It will take some time for improving the position in yahoo. But if you keep off-page optimisation regularly, your site definitely return to its last position or better position.
This 42 message thread spans 2 pages: 42

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