How the circumventing systems policy works
Every ad, keyword and destination in Google Ads passes through a review that is partly automated and partly human. The circumventing systems policy protects that review. It prohibits anything built to hide what is really being advertised, or to carry on advertising after Google has said no. Serving one page to Google’s crawler and a different page to the person who clicks, bouncing a click through redirects to an unrelated destination, masking a domain behind a shortener, or opening a fresh account after an old one was shut down all sit under this single heading.
It is one of the few policies enforced against the whole account rather than the individual ad. An ordinary breach produces a disapproval and the campaign carries on around it. This one is read as deliberate deception, so serving can stop everywhere at once, frequently without a warning first. Payment profiles, business names, phone numbers and linked properties tie a new account back to an old one, which is why opening another account is the worst possible response to a suspension.
Why circumventing systems matters
The commercial risk is out of proportion to the mistake. A disapproved ad costs you one ad. A circumvention finding can cost the account, the history that trained your bidding, the conversion data behind it, and any remarketing audiences you had built. Rebuilding from zero in a fresh account is far slower and dearer than fixing the original problem would have been.
It also matters because intent is not required. Google enforces on what the system observes, not on what you meant. A technical setup that happens to show different content to a crawler looks identical, from the outside, to one built to deceive.
Where circumventing systems goes wrong
Most cases I see are not fraud. They are an agency or developer doing something reasonable in isolation. A geo-redirect sends visitors from one country to a local site while Google’s crawler, based elsewhere, sees the original. An A/B testing script serves a different page to non-human traffic. A tracking link chain passes through a domain the advertiser does not own. An affiliate uses a shortener because the real destination URL is long and ugly. Each of these is enough to look like cloaking to an automated check.
The other common error is panic after a suspension: a new email address, a new card, a new domain and the same offer. That pattern is exactly what the policy is designed to catch, and it usually removes any chance of a successful appeal on the original account.
What to do about it
Make the destination the same for everyone. If a visitor is redirected, redirect Google’s crawler the same way, and keep the display domain and the final domain matching. Document any testing or personalisation that changes what a page returns, and check the landing page yourself from outside your own network.
If the account has already been hit, appeal on the original account and fix the cause before you appeal — a resubmission with nothing changed is refused. My notes on Google Ads suspensions and policy compliance cover the sequence in more detail.