I noticed that around the beginning of the last week; our traffic started declining and it's currently at about 40% of the initial. Here are the things I did that might have led to the decline in traffic - Site Setup: Wordpress (on main domain) & Xenforo on /community/ PS: Traffic is declining on the forums, not to the blog. I removed a large number of useless tags [ about 10k of them, I guess ]. I updated my Robots.txt from allow everything to: http://www.crazyengineers.com/robots.txt I had added widget framework sidebar to all the pages of the site in the last week of August 2012. I had two large rectangles placed below the title for a long time (while the traffic was improving), while having site welcome text on the top. I clearly marked the ads as 'Ads By Google'. So the ads were in the 'middle' of the text; while still being above the fold. I added sitemap add-on to Xenforo. What do you think could have caused the traffic to go down? What should I do to recover from it?