First of all, I would congratulate these people for this excellent script they have.
I have set it successfully and is working fine.
I have certain important queries which will be usefull to everybody.
1) What is the difference between Pinging Google through Your Script & Re-Submitting the sitemap to google using the Google webmasters area.
- After using your script with the ping option , I thought the re-submitted date on google sitemap's members area will change, but it did not happen.
It shows two dates - Submitted & Downloaded , an explanation would be greatly appreciated.
2) I have set a cron job to create & ping google daily.
- Is it OK to ping google any number of times?
3) What is the best time duration to set for a cron job to create sitemap & ping google using xml-sitemaps?
4) Is it neccessary to re-submit the sitemap often through the google webmaster's area after setting the cron jobs as mentioned above?