stop forwarding to external sites

[HDsports]

Hello,

i use advertising (banner) on my website. but sometimes my advertiser had a security token, that my site forward automatically to an untrustworthy site.

is there an opinion, that i don't allow automatic forward to external sites? (maybe in .htaccess?)

Best regards.

[lucy24]

There is nothing you can say in htaccess to prevent something happening after the page has already loaded. It really sounds like you need to prevent certain advertisers’ banners from getting anywhere near your site in the first place.

[tangor]

Vet all adverts ON YOUR SYSTEM for redirects, etc. Only you can control this. Cut and paste "income" is a dangerous thing if you do not know EXACTLY how it works, and WHO you are dealing with.

[HDsports]

how can i vet adverts for redirects?