The PPC Numbers That Actually Tell a Law Firm Anything
A firm’s monthly report shows strong click-through rates, a healthy number of impressions, and a cost per click that looks reasonable for the market. Everything on the page suggests the campaign is working. Then intake numbers come in flat for the third month running, and nobody can explain the gap. The explanation is usually that the report was full of numbers that are easy to track and easy to feel good about, without ever answering the one question that actually matters: is this campaign turning into signed cases. Most firms don’t discover this gap until a budget review forces someone to ask what the spend has actually produced.
Why the easy metrics mislead
Click-through rate and impression volume are the numbers every ad platform surfaces first, because they’re simple to measure and simple to improve. A law firm PPC agency that only reports on these numbers is reporting on activity, not outcomes. A campaign can have an excellent click-through rate while sending traffic to the wrong audience, at the wrong time, for keywords that never had strong intent behind them in the first place. None of that shows up until someone connects the ad data to what actually happened after the click.
The metrics that connect ad spend to case value
A few numbers carry the actual signal a firm needs, and each one answers a different part of the same underlying question.
- Cost per lead. This tracks how much it costs to generate a single contact, whether a form submission or a phone call, and is the first checkpoint after cost per click.
- Lead-to-consultation rate. Not every lead becomes a scheduled consultation. A low rate here often points to intake process problems rather than ad targeting problems.
- Consultation-to-signed-case rate. This measures whether the leads reaching a consultation are actually the right fit for the firm, which says something about keyword and audience targeting further upstream.
- Cost per signed case. This is the number that ultimately determines whether a campaign is worth running, since it connects every dollar spent all the way through to an actual client relationship.
- Case value relative to acquisition cost. A firm handling both high-value and lower-value case types needs to weigh cost per case against what each type of case is actually worth, not treat every signed case as equally valuable.
Why this requires connecting systems that usually sit apart
Getting from cost per click to cost per signed case requires linking data across the ad platform, the website, and the firm’s own intake or case management system, which most firms don’t have set up to talk to each other by default. Call tracking numbers, form tracking, and consistent intake tagging are what make this connection possible. Without them, a firm is stuck reporting on clicks and impressions because that’s the only data that’s actually flowing anywhere. Setting this up takes real effort upfront, but it’s a one-time cost against a benefit that compounds over every campaign the firm runs afterward.
What to ask a PPC partner about measurement
Before trusting a monthly report, a firm should know whether its PPC partner can trace a signed case back to the specific keyword and ad that generated it, whether call tracking is set up to capture phone leads and not just form submissions, and whether reporting includes intake outcomes or stops at the click. A partner unable to answer these clearly is likely reporting on the numbers that are easiest to show, not the ones that answer whether the campaign is actually working.
Conclusion
A report full of strong-looking numbers isn’t proof of a working campaign if none of those numbers connect to signed cases. Firms that insist on tracking cost per case, not just cost per click, tend to catch underperforming campaigns months earlier than firms relying on impressions and click-through rate. That earlier signal is often the difference between fixing a campaign and quietly funding one that was never going to work. The metrics a firm chooses to watch shape the decisions it ends up making, so it’s worth choosing the ones that actually matter.
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