I am running a coupon code website, where I add 10k+ vouchers daily and every voucher has a separate url
for eg www.mysite.com/coupon-get-20-percent-off
I don`t add this url on sitemap and prevent to crawl as these offers are active for few day. ( 1- 30 days generally ).
Now If I want to add these urls on google webmaster to crawl, will it affect my site?
What should I do when that url get removed or my offer get expired?
What should I do? Please advice me.