Interstitial ads

[bonnierSEO]

What is the best way to handle interstitial ads for the search engines? We saw in Google Webmaster Tools a big spike in 403 errors all from interstitial ad URLs.

Would noindex work? Blocking the /interstitial in our robots.txt file? Will that affect the search engines from moving past the ad URL.

[NakulGoyal]

It really depends how they are being served to the users and the bots. do you always display them ? Why is it causing a 403 / Forbidden error code ?

Post / PM me the URL and that would make it easy to check and suggest accordingly.