Massive rank drop on one particular keyword

[sususu]

As all other marketeers do I follow closely my keywords, one particular keyword has ranked continually at #2 and has suddenly dropped to +#60, but all others remain the same. We are a fairly large site in terms of numbers 9m views annually, could it be possible that someone has black hatted that particular keyword, and if so how do I find out how and more importantly who?

[ClaytonJ]

There are a few things to check.  Have you changed any internal links to the page? A website audit on Moz etc.?

Have you undertaken a link audit? Is there a whole lot of links recently been sent to that page? Page speed? When was that page last updated? Is the page mobile friendly?

Hope that assists in getting started.

[PatrickDelehanty]

Hi there

I just answered a question that I think will help you here - you can check it out at this Q+A thread.

Hope this helps! Good luck!