Pinging is a technique which informs other search engine and directories that a particular blog or a web page is updated. So the same blog or a web page can update its current database with the newly provided one. It helps to get your update crawl and index more faster.
This is technique use for send quarry for index your blog , using ping command ,now this ping command can be done using various methods like online ping your blog or using webmaster .webmaster tool is preferable for ping usaually Google pay more attentions towards it
Pinging is strategy which signals the Search Search engines about the modified material on the web page. It is done for quicker listing of a web page. And is important to speed up the clean examine creeping.