I want to know few things
1. Generator crawl and make sitemap first time, when it again run and crawl second time, will it crawl from begin whole site or just add few more links to existing sitemap. Does it remember where it stop last?
2. If i want to run cron Job how much resources it consume?
3. What is the best schedule time for cron Job like daily or after 3 days or Once in a week?