helenp - 7:10 am on Jan 9, 2013 (gmt 0)
You posted in December about a ranking drop for your english language pages in this thread: [webmasterworld.com...]
Have your rankings recovered? If they did, then perhaps the ranking problem was caused by these 50,000 URLs Google has "discovered" and now that they are returning 404, Google reports these 404 errors.
If you did fix your site so that 404 response is correctly returned (when it wasn't previously), then the message on increased number of 404 in WMT is a normal situation. You should briefly review these URLs, then declare them as "fixed" and if they are not linked from anywhere any more (e.g. they were result of some kind of error on the site/hosting) then they will not re-appear again.
This is exactly what I am thinking about, alsa I mentioned in previous post could be the reason.
No the page has not recovered, but its really odd, how can google at beginning of december discover pages that does not exist and also invent themself parameters, looks like they are using google cache instead of my sitemap. Its really odd.
I hope you are right, however the pages returened a soft 404 already, and now will give a real 404, but as far as I heard 404 takes long to disappears.
And I thought marked as fix was for you to know whats done and whats not and that is does not tell google.
I been checking some and this is interesting,
some has some good links so I guess I better do a 301 on those,
however I have 404 that ever existed with odd folders like this:
and its linked from a page of mine like this that ever existed, not even the folders:
Similar to above there are hundreds and they are folders and pages mixed up.
As I said google gone nut