Do you have to resubmit your sitemap to google

when you change your webpage do you need to let

[dantech]

When you change a web page and update your xml sitemap do your need to resubmit it to google via the webmaster tools?

Also when should you resubmit your xml sitemap to google?

[cssatsc]

AFAIK, if you change a web page contents only, then you don't need to re-submit your XML sitemap to Google -- because the sitemap doesn't really change.

But if you add a page (or more) or remove one (or more) then you definitely need to re-submit.

The best way to handle this is to automatically generate a sitemap every day (or night). If your server runs some flavor of UNIX then simply add a single line cron job.

[dantech]

thanks for clearing that up for me