Just wanted to warn about "url parameters" under "crawl" in google webmasters. Do not deal with it if you are using wordpress or joomla. It should be for e-commerce sites. The google webmasters blog clearly stated to not to deal unless untill you have complete knowledge (risk) about it. Seriously it is risky.
I am using wordpress for my website http://healthbeautyfitness.in/. I started it four months back and it is running good with daily 7000 visitors. Last friday I did a biggest mistake by fingering into url parameters which is under crawl in the google webmasters. Now the health site traffic literally dropped to 1000 visitors per day.
There is a reason for the mistake (i dont know it is mistake or not) i did. When i see the crawl errors in webmasters I decided to omit the pages which has "page" in the URL.
So I opened the page "url parameters". Then I clicked on "Configure URL parameters »". The post screen looks like this.
Now I clicked on edit in first row and below popup came
Now i reset the the settings and waiting to get my traffic back. And re-submitted the sitemap too.
If you know any better solution, please suggest.
Hope I will get my traffic back soon.
Watch this video is very helpful for webmasters about url parameters.