What to check before you touch anything
- What does Auction Insights show for your core keywords? Overlap rate, outranking share, and impression share relative to competitors give you an indirect read on how aggressively they're bidding — but Google doesn't reveal a competitor's actual CPA.
- How comparable is your business to your "competitors" in the first place? A direct CPA comparison only makes sense with a similar funnel, order value, margin, and sales cycle — otherwise a competitor's "lower CPA" may just reflect completely different economics, not a more efficient campaign.
- What's your own Impression Share trend (specifically rank-lost share) been doing over the last few weeks/months? A steady rise in rank-lost share at an unchanged target CPA suggests the market as a whole has gotten pricier, regardless of whether you know a specific competitor's CPA.
- Are there any indirect industry data points available (published CPC/CPA benchmarks from research firms or Google itself for your industry)? That's a more reliable anchor than guessing based on one or two competitors.
- Are you conflating "target CPA too high compared to competitors" with "target CPA too high compared to your own past performance"? These are different questions, and the second one is usually easier and more reliable to check (through your own account history) than guessing at someone else's economics.
Possible approaches
- Since Google Ads doesn't expose competitor CPA directly, many agencies rely on an indirect read via Auction Insights (position, overlap, outranking share) combined with a hands-on review of competitor offers and ads — judging offer competitiveness in general, rather than a specific CPA number.
- You can anchor on your own trend line — if target CPA was reliably achievable for a long stretch and then became systematically unreachable with nothing else changing, it's reasonable to assume the auction has gotten more expensive industry-wide, without needing to pin it on a specific competitor's number.
- Some businesses use third-party industry benchmarks (agency reports, vertical-specific platform data) as a rough "market average" CPA/CPC reference — with the caveat that these are averaged figures that don't replace your own analysis, just give you a rough frame of reference.
- If the niche is highly competitive and a direct comparison isn't possible, it's often more practical to focus on what you can actually control: calculate what CPA is realistic given your own funnel (current CPC × 1/conversion rate), and judge whether your target is reasonable against that number, independent of competitors.
- Either way, don't draw conclusions about your target being "too high for the market" purely from guesses about competitors — back it up with your own auction data (lost Impression Share, CPC trend) as well, or any decision to change target CPA will be based on assumptions rather than facts.