Webmaster Index Page significant drop

[datadirect]

Has anyone noticed a significant drop in indexed pages within their Google Webmaster Tools sitemap area?

We went from 1300 to 83 from Friday June 23 to today June 25, 2012 and no errors are showing or warnings.

Please let me know if anyone else is experiencing this and suggestions to fix this?

[mozzello]

Did you have a significant increase in page load time?

In the article below they found that if the page load time increases, the number of pages crawled decreases.

http://visiblefactors.com/blog/575-site-speed-reducing-page-load-times-and-increasing-pages-crawled/

Might not be your case, but definitely worth checking.

Hope this helps

MIchel

[paulfervoy]

I had a site disappear from Google on June 25th.  Webmasters Tools reports 0 impressions in Search and the Sitemap now reports Indexed Pages - (just a dash).  This came after a period of time where the site had a few hundred impressions per day in Search and a high CTR on these.   Otherwise Webmasters Tools reports no errors.