if you have website that updated regularly, then you shoul tell search engine regulary too.
You can do that manualy or you can use cronjob to do it automaticly.
you can find cronjob at cpanel.
then put this code to it :
Code: Select all
0 0 * * * wget --delete-after http://www.google.com/webmasters/tools/ping?sitemap=YOUR_SITEMAP_URL
0 0 * * * wget --delete-after http://webmaster.live.com/ping.aspx?siteMap=YOUR_SITEMAP_URL
0 0 * * * wget --delete-after http://search.yahooapis.com/SiteExplorerService/V1/updateNotification?appid=YahooDemo&url=YOUR_SITEMAP_URL
0 0 * * * wget --delete-after http://api.moreover.com/ping?u=YOUR_SITEMAP_URL
Sorry, if you know about it before.