Hi I have a vbulletin forum and I made a few SEO changes after carefully reading a few documents I found in google. But since i have made the changes the search engine traffic from google has been decreasing day by day. Now traffic from google is down by 50%. The changes I made could only of increased my on page SEO for mysite ?? Will the traffic go back up ?? How comes its gone down by so much? Shall i revert the changes back??
It usually takes some time for Google to respond. I would say about 2 months. Do a search in google for site:yourdomain.com and see how many results it has. If you don't already, create a Google webmaster account and add your sitemap with all the new forum pages. Also, some changes may have had negative impact on your ranking. Changing page titles, keyworks, and description can take Google longer to rerank your site.
Exactly, after your recent change, google will return the changes after couple of weeks. If those were right SEO changes, then I suppose you should see an uprise than before soon.