What your search metrics are actually telling you

You have a dashboard. It has numbers on it. Some of those numbers go up, some go down, and occasionally someone in a meeting points at one and says "that's good, right?" with the energy of a person who has absolutely no intention of finding out whether it is or not.

Search metrics only become useful when you understand what each one is measuring, what it's measuring it against, and what the combination of metrics is telling you about real customer behaviour. On their own, they're data points. In context, they're a diagnostic.

This post covers the two metrics you'll encounter most often in search reporting: click-through rate and conversion rate. Both are frequently misread. Both matter more than most teams realise.

Click-through rate (CTR) measures the volume and percentage of visitors who click on a search result. A high percentage means people have confidence in a result, either because it clearly matches what they were looking for or because the result itself is well-written and trustworthy.

In search results, CTR is your best immediate signal for intent matching. If a visitor searches for something and clicks the result, you've done your job: you've matched their query to a page they believed would answer it.

The word "believed" is doing work there. A high CTR on the wrong page is still a failure. If visitors are consistently clicking through to a page that doesn't actually answer their query, you've surfaced the wrong result confidently. That's a different problem to a low CTR, but it's still a problem.

Here's how to read CTR by band:

100-70%: This term is performing well. Monitor it, but it doesn't need intervention.

70-50%: Acceptable, but with room to improve. If the search volume is low, watch it. If it's a high-volume term, investigate.

Below 50%: Poor performance. If this term sits in your top 25% by search volume, treat it as a problem and dig in.

The threshold that matters most is the 50% mark on your high-volume terms. Those are the searches your customers are running most often, and a coin-flip click rate means you're failing them half the time.

Conversion rate (CVR) measures the percentage of visitors who complete a defined action compared to the total traffic in that context. A "conversion" is simply the completion of something you've decided matters: a purchase, a newsletter sign-up, a download, a registration.

The core formula is straightforward. If 1,000 people visit a page and 50 complete a purchase, your conversion rate is 5%.

For ecommerce and lead-generation sites, CVR is primarily a sales metric. It tells you how many people are following through on the intent they arrived with.

What it doesn't tell you, on its own, is why people aren't converting. A low CVR could mean your search is surfacing the wrong products, your product pages aren't persuasive, your checkout has friction, or your pricing is off. CVR flags the problem. It doesn't diagnose it.

One additional signal that's often overlooked: time to conversion. How long does it take someone to move from first visit to completed action? A long lag can indicate a confidence problem, a complexity problem, or a comparison-shopping behaviour that your site isn't designed to support.

If your site is primarily informational, you still have conversion events. They look different, but they're worth tracking. Reading to the bottom of a page, clicking a related article, sharing content, signing up for a newsletter: these are all actions that indicate engagement and intent. Define them deliberately rather than defaulting to "we don't really have conversions."

When you apply CVR specifically to search traffic, you get two useful signals:

First, how search compares to other acquisition channels at converting visitors. If organic search converts at 4% but site search converts at 1.5%, your on-site search experience is underperforming relative to the intent signal it's receiving. People using your search bar are actively looking for something. They should convert at a higher rate, not a lower one.

Second, whether you have a merchandising or content problem. If high-CTR searches are producing low-CVR results, the search is working but the destination isn't.

CTR and CVR are most useful as a pair. High CTR with low CVR means your results look right but land wrong. Low CTR with decent CVR means the people who do click are committed, but you're losing most of them before they even try. Neither pattern is fine.

The point of search metrics isn't to produce a report. It's to tell you where customers are falling out of a journey they were trying to complete. Start there, and the numbers start to mean something.

Murmuration helps retailers and digital teams understand and fix onsite search. Get in touch if you'd like to talk through what a diagnostic might look like for your site.