I have a .co.uk domain that was setup in November 2009 and it has always done pretty will in the SERPS. In Oct-Dec last year I could literally publish a post and be on the first page for a keyword with no backlinks at all.
All of my posts/pages feature-
100% unique content (min 500 words)
Imagery
Embeded video which is part of a video sitemap
External links
keyword density between 2 and 4
keyword in first paragraph bolded
Title tags are written like KEYWORD - Title, eg BLUE WIDGETS - What You Need To Know
Then this happened-
[
i53.tinypic.com...]
On december 22nd - december 24th i see a sharp decline in traffic, and then a further decline december 31st - Jan 1st?
On that graph I have marked out changes I have made to the site. The bottom bar that was deployed on Nov 30th was simply a floating price comparison bar stuck to the bottom of pages.
Other than that change, nothing else had changed on the site during that period.
Here's what I have done so far to try and fix things-
Optimized load time (now 2.5 seconds)
Deployed MaxCDN content delivery network
Removed some pages which were similar, but 100% unique (unlock pages on graph)
Change H2 tags to H1 (previously there were no H1 tags)
Removed the bottom bar on nov 30th
reduced price compare results to 3 from 10
Ran a broken link check
Noindex/Follow 2nd pages of tag/categories pages
Improved blog posting rates to at least twice a day
I have 100% indexation rate across the site, an average load time of 2.5 seconds. I've tried everything I can think of, and can't seem to pin point the issue and after 5 months of trying to get it fixed I think an outside view is needed!
So what happened at Google mid-end december?
Any advice/thoughts/feedback is greatly appreciated, thanks for your time.