By choosing to report only verified engagement (filtering out bots and unqualified clicks), a publisher's numbers may look lower than competitors'. However, this forces a focus on quality growth and provides advertisers with data that ultimately proves the higher value and ROI of their audience.

While a blended CAC is the North Star metric, don't discard individual channel analysis. Use siloed metrics to diagnose problems. When your overall blended CAC increases, dive into the channel-specific data to identify the underperforming source, such as ad fatigue on a specific platform.

Don't dismiss impressions as a vanity metric. Treat them as the first signal in a chain of events. If a marketing investment drives impressions, which in turn drive trials, customers, and finally revenue, the strategy is working. If the chain breaks at any point, something is wrong.

Striving for 100% impression share is a flawed goal. For any given keyword, a large percentage of searches are irrelevant to your specific solution (e.g., "CRM for plumbers"). The focus should be on dominating the slice of high-intent searches that matter, not on appearing for every variation.

The business was profitable despite ad platform data showing a loss (LTV:CAC < 1), indicating a severe data attribution problem. Before optimizing or scaling ad spend, the first step must be to fix tracking to understand what is actually working, not just spend more.

Rather than killing an underperforming paid search channel, cut its budget significantly and reclassify it as a "tertiary pipeline source." This frees up capital to invest in demand creation, which can improve the performance of your now smaller, more efficient paid search efforts.

Many B2B paid search campaigns fail not from low budget, but from a low Quality Score causing high "impression share lost to rank." This fundamental mismatch between keywords, ads, and landing pages throttles ad delivery, a problem that cannot be solved by simply increasing spend.

If your ad performance drops as you increase spend, your creative likely isn't compelling enough to convert less-interested audiences. The solution is better, more universally appealing ads that can unlock the next tier of the market, rather than simply changing your targeting.

Corporate marketing often rewards media agencies for efficiency (low CPMs), but this is a false economy. Cheaper media is often low-quality, poorly placed, and unseen. The focus must shift from efficiency to effectiveness—paying for actual impact.