Massive Rank Fluctuation in Bing/Yahoo

[BedeFahey]

About two months ago we dealt with some issues that were causing weak rankings in Bing and Yahoo! since then, we've seen rankings rise and plummet dramatically with no changes to the site.

On Bing and Yahoo! we've gone from 1st page to less than 50th and back again THREE times. This happens across all keywords, even branded ones that are an exact-match for the domain.

Google rankings have continued to rise steadily. We benefited greatly from Penguin, which tanked a number of competitors.

Bing webmaster tools aren't showing any server or other kinds of errors during the rank drops.

Has anyone every experienced this before?

[BenFox]

First off I'd check that it's not an issue with your rank tracking software.

Beyond that I have seen some crazy fluctuations on Bing and Yahoo but I haven't dug into them yet - I'm based in the UK so Google's got a 90%+ market share.

[BedeFahey]

Hi Ben,

Thanks for the response. I did check the rank tracking software when I saw it, and unfortunately it's not what's causing the problem.

It's not causing massive traffic changes to the site - somewhere in the realm of 5% to 15% depending on the month. It's still a decent chunk of people, though.