Google webmaster tools data update frequency?

[scanlin]

What is the lag time for changes to a site to be reflected in Google webmaster tools Diagnostics section?

They pointed out some duplicate titles which I fixed a week ago and yet they still show up as an HTML Suggestion. What has your experience been with making changes and then seeing them reflected in the HTML Suggestions section?

My site is crawled every day, including the pages I have updated with new titles. Seems like it takes a while for the data to trickle into Webmaster tools, no?

[jsturgeon]

Hi Mike,

From what I understand, there is no definitive time frame for how long it takes to update the webmaster  diagnostics. Check and see if your changes show up in the Google cache first. If nothing is changed on the indexed pages--something is wrong with the crawl of your site. If the changes are reflected in Google's cache, but are still missing from the webmaster diagnostics, I would just re-verify your site to get a clean start.

One other thing to look out for: is your non-www domain 301'd to the www domain? If not, your webmaster tools may be running diagnostics on the wrong URLs, rendering your changes useless.

Good luck! If all else fails, just wait it out and take solace in the fact that you've made the necessary changes.