I want to Track some backlinks (Which are broken) to be crawled by Google, Yahoo, Bing Bots etc and see if Bots de-indexes these backlinks as they are broken.... I plan to Ping these backlink Pages for Bots to crawl them again, will it be possible that Google, Yahoo, bings De-indexes backlinks to my website from these pages? And how will I be able to track them as plenty of these?