Competitor bidding is one of those topics where the loudest opinions are usually the most wrong in both directions. The first camp argues you should always bid on every competitor in your space because the auction is profitable. The second camp argues you should never bid on competitors because it invites retaliation. Both miss the actual decision, which is more nuanced and more situational.
This is the framework we use with SaaS clients to decide where competitor bidding earns its place and where it does not.
The four conditions that justify bidding on a competitor
Competitor bidding makes sense when four conditions are met. The competitor's product is genuinely a substitute for yours, not just an adjacent category. The cost per click is meaningfully below your category head term cost per click, which is usually the case for competitor terms. Your landing page can make a credible side by side comparison case without misrepresenting the competitor. And your sales motion can handle the slightly different conversation that a competitor sourced opportunity tends to have.
If any of those four are weak, the campaign tends to underperform regardless of how aggressive the bidding is.
The landing page is most of the work
Competitor bidding without a dedicated landing page is almost always a waste. The visitor who clicked an ad while searching for a specific competitor has a specific question in mind and a generic homepage will not answer it.
The landing page that converts competitor traffic acknowledges the searched competitor by name in the headline, makes a specific factual case for why your product is a strong fit for the buyers that competitor serves, and offers a side by side comparison that is honest about what the competitor does well in addition to what your product does better. Honesty is critical; misrepresentation triggers a complaint to the platform faster than you would expect.
How to think about being bid on
If a competitor is bidding on your brand terms, the question is not whether to retaliate. The question is whether your brand search defense is strong enough to make their campaign expensive without much benefit. Strong organic listing prominence on your brand SERP, full sitelink coverage on your brand campaign, and bid stacking that holds the top ad position are the three levers.
Done well, the competitor running a campaign against your brand is paying a premium for click through rates that get steadily worse over time as the auction calibrates. They will eventually pull the campaign without you having to do anything beyond defend your own SERP well.
The retaliation question
Direct retaliation, where you bid on the competitor's brand terms specifically because they bid on yours, is rarely the strongest move. It tends to escalate into a sustained mutual auction that benefits the platform more than either advertiser. The exception is when retaliation will visibly raise the cost of the competitor's campaign and your own campaign would have made sense on the merits anyway.
Treat retaliation as an outcome of a sound campaign decision, not as a motive in itself.
Trademarks and the platform's policies
Bidding on a competitor's trademarked brand term is permitted by Google in most jurisdictions. Using the competitor's trademark in the ad copy itself is not. The line is well established and the platforms enforce it consistently.
Write competitor ad copy that uses descriptive language without the trademarked name. Refer to the competitor in the landing page if your jurisdiction permits, with the appropriate respect for trademark conventions. The result is a campaign that runs cleanly and stays out of trouble.
Cadence and review
Competitor campaigns deserve a monthly review. The competitive set changes, the auction dynamics change, and the comparison case can become stale as both products evolve. Refresh the landing page comparison content every quarter at minimum. Pause campaigns where the comparison case has weakened. Add campaigns where new competitors have entered the consideration set.
The accounts we manage that treat competitor bidding as a deliberate, reviewed motion produce roughly the cost per opportunity of branded search. The accounts that turn it on and forget about it produce numbers that justify the loud opinion that competitor bidding does not work.
Want to talk about applying any of this to your account? Send us a note and a senior expert will reply within one business day.