If you are running ads on Facebook, Google Adwords, or any traffic source for that matter. Doesn’t matter if its blackhat like tech support PPC, or diet, skin, muscle or white hat like VPN offers, or app installs there comes a time where your landing page, URL, or offer URL might be flagged.
This can have many cons, including you losing visitors to alerts shown by their virus scanners, or worse web browser like Chrome. Or, your traffic source detecting your site as ‘malicious’ and banning/suspending your account.
This is why it’s important to do some periodic due diligence. I like to look up my offer and landing page URLs before I get my assistant to setup the campaigns on the traffic source. And then, have them checked every week or so to ensure we’re in good standing. We also like to run through these checks if the numbers go bad really fast from one day another; it’s always a signal for alert.