Massive raise and drop in keyword ranking

[interelectronix]

2 weeks ago I had a massive spike in keyword rankings 99 keyword went up.

It was a quite happy week. the week later all keywords that went up dropped down to the same positions before the spike. now I have the same situation. this is the happy week with a very high spike.

Anybody got a clue what is going on ?

[interelectronix]

basically we changed nothing over the past few weeks.

we are doing thing very very clean. just on site optimisation. no stuffing no spamming.

The spike was:

100 keywords UP

100 keywords DOWN

First Spike:

the first spike i guess could be related to a public relations anouncement. but that is just a guess. that was rough 10 days before the first spike.

2nd Spike:

the only thing we did was rolling out 8 further languages to improve our coverage over europe. that happened 8 days ago.

[SarahGoliger]

I'm sorry but there isn't enough information in your post to make a diagnosis.

Some questions:

What have you been doing? What SEO efforts were you doing? What does your link profile look like? Has anything changed about your website?

Are the ranking results now back to the same before your big rise, or are different people ranking now than before?

Do you have any spammy backlinks that Google may have caught on to, or keyword stuffing/other bad habits?

Were the keywords actually generating traffic for your site when you had the rankings, or were they ranking without delivering traffic?