Summary: SEO KPIs are the handful of numbers that tell you whether search is bringing you business. For most UK companies that means organic enquiries or sales first, then non-brand organic traffic, then rankings for the keywords that matter commercially. Rankings, Domain Authority and page views on their own are indicators, not results. Track the KPIs in Google Search Console and GA4, compare like-for-like periods, and judge the trend over months rather than weeks.
Most business owners who pay for SEO have the same quiet worry: is it actually doing anything? Reports arrive, rankings go up and down, traffic charts wobble, and it is hard to tell whether the money is working or just moving numbers around. This guide sets out which SEO KPIs answer that question, which ones flatter without informing, and exactly where to find each one. It is written for the owner or marketing manager who has to judge results, not the specialist producing them.
A key performance indicator is a measure tied to a business outcome. A metric is any number you can track. The distinction matters in SEO because the tools generate hundreds of metrics, and most of them are not KPIs for your business. The number of keywords you rank for is a metric. The number of enquiries that came from organic search last month is a KPI. Good reporting leads with the KPIs and uses the metrics to explain why they moved.
Before choosing KPIs, be clear about what SEO is for in your business. A local trade wants calls. An online shop wants orders at an acceptable cost. A B2B firm wants qualified enquiries. The KPIs follow from that, which is why two businesses can run excellent SEO campaigns and report on completely different numbers.
This is the KPI. Everything else exists to explain it. In GA4, conversions are called key events: form submissions, phone clicks, purchases, quote requests, bookings. Filter them to the organic search channel and track the monthly count and, for ecommerce, the revenue.
Where to find it: GA4, Reports, Acquisition, Traffic acquisition, filtered to Organic Search, with your key events as columns. If key events are not set up, nothing else in this guide will tell you whether SEO is paying. Set them up first.
What good looks like: a rising count over a six-month comparison, with the conversion rate from organic traffic holding or improving. If traffic rises and conversions do not, the traffic is landing on the wrong pages or the wrong keywords.
Total organic traffic includes people who already knew your name and searched for it. That traffic would arrive with or without SEO. The traffic SEO earns is from people searching for what you do, not who you are, so separate the two.
Where to find it: Search Console, Performance, with a query filter that excludes your brand name and its common misspellings. Compare clicks over the last six months with the six before. For a quicker view, GA4 landing-page reports show which pages earn organic traffic; service and product pages rising is the pattern you want.
Rankings are the most watched SEO metric and the most misread. Position for a keyword nobody buys from is not progress. Track positions for the keywords that lead to enquiries, usually your service, product and location terms, and watch the trend, not the daily movement.
Where to find it: Search Console shows average position per query and page, free and from Google itself. Rank trackers such as SE Ranking, Ahrefs or Semrush show daily positions for a chosen keyword list and are worth it once you have more than a handful of terms to follow. Our keyword research guide covers how to pick the list.
What good looks like: commercial terms moving from page two into the top ten, then into the top five, where most clicks happen. A rise in the number of keywords ranking in the top ten is a useful secondary signal.
CTR is the share of people who saw your page in results and clicked it. It tells you whether your titles and descriptions are earning the click once you rank. A page with high impressions and a low CTR is the cheapest fix in SEO: rewrite the title and description and watch it.
Where to find it: Search Console, Performance, with CTR enabled, sorted by impressions. Look for pages or queries with many impressions and a CTR well below the pages around them. Note that AI Overviews and other features above the results push CTR down for informational queries across the board, so compare a page against its own history rather than a universal benchmark.
A page Google has not indexed cannot rank. If you publish new content and it does not appear in search, this is the first place to look.
Where to find it: Search Console, Indexing, Pages. It shows how many pages are indexed, how many are not and why. The URL Inspection tool checks a single page and lets you request indexing. A healthy site has its important pages indexed and its thin, duplicate or utility pages deliberately excluded. Our guide to technical SEO covers the common reasons pages are left out.
GA4 replaced bounce rate as the headline with engagement rate: the share of sessions that lasted longer than ten seconds, included a key event, or viewed more than one page. It is a rough measure of whether the traffic matched the page. A service page with a low engagement rate and no enquiries is attracting the wrong searches or failing to answer the right ones.
Where to find it: GA4, Reports, Engagement, Pages and screens, with the organic channel as a filter. Treat it as diagnostic. It explains conversion problems; it is not a goal in itself.
Links from other websites remain a trust signal. Count referring domains, not total links, and look at who they are rather than how many. Ten links from relevant UK sites your customers read are worth more than a hundred from directories. Our guide to backlinks explains what Google still counts and what it now ignores.
Where to find it: Search Console, Links, shows top linking sites free. Ahrefs, Semrush or Moz give more detail and history. Watch for a steady growth in relevant referring domains and for anything sudden and low quality, which may need looking into.
Google’s three page-experience measures are Largest Contentful Paint (how fast the main content loads), Interaction to Next Paint (how quickly the page responds to taps and clicks) and Cumulative Layout Shift (how much the page jumps about while loading). They are a minor ranking factor and a major user-experience one.
Where to find it: Search Console, Experience, Core Web Vitals, which groups pages as good, needs improvement or poor based on real visitor data. Fix poor groups; do not chase perfect scores on pages that already pass.
In 2026 a growing share of searches end in an AI-generated answer, in Google’s AI Overviews and AI Mode or in assistants such as ChatGPT and Perplexity. Whether your business is cited in those answers is a new KPI, and the tools are catching up. Our guide to generative engine optimisation explains how businesses get surfaced.
Where to find it: Search Console does not yet separate AI Overview clicks from ordinary results, so start with GA4 referral traffic from chatgpt.com, perplexity.ai and similar sources. SE Ranking, Semrush and Ahrefs now offer AI visibility tracking that shows which prompts mention your brand and which competitors are cited instead.
| Metric | Why it misleads on its own |
|---|---|
| Domain Authority, Domain Rating, Authority Score | Third-party estimates of link strength. Google does not use them. Useful for comparing sites in a rough way, useless as a measure of whether your SEO is working this quarter. |
| Total organic traffic | Includes brand searches that would arrive anyway, and can be inflated by informational articles that never convert. Look at non-brand traffic to commercial pages instead. |
| Number of ranking keywords | Easy to grow with content nobody buys from. Count commercial keywords in the top ten instead. |
| Page views and sessions | Volume without outcome. A thousand visitors who leave are worth less than fifty who enquire. |
| Position for a single head term | One keyword rarely represents the business. Track a set, and track what the set produces. |
| Bounce rate | Still available in GA4 but defined differently from the old version, and a high bounce can be fine on a page that answers a question. Use engagement rate and conversions. |
A KPI without a target is just a number you watch. Set targets at the start of a campaign so that six months in, nobody is arguing about whether the result was good.
You do not need a dashboard with forty widgets. One page, six numbers, with a sentence against each on what moved and why:
| KPI | Source |
|---|---|
| Organic enquiries or sales (and revenue if ecommerce) | GA4 key events, organic channel |
| Non-brand organic clicks | Search Console, brand queries excluded |
| Commercial keywords in the top ten | Rank tracker or Search Console |
| Pages with high impressions and low CTR (the fix list) | Search Console Performance |
| Indexing issues on important pages | Search Console Pages report |
| New referring domains this month | Search Console Links or a backlink tool |
Add AI visibility as a seventh line once you have a tool that tracks it. If your agency’s report does not lead with the first line, ask why. Our guide to whether an SEO agency is worth it covers what good reporting looks like and the questions to ask when it is not.
If you serve a local area, add Google Business Profile performance: calls, direction requests and website clicks from your profile, found under Performance in your Business Profile. Add your position in the local Map Pack for your main service and town, which rank trackers can now follow. Our local SEO services are built around both.
Our monthly reports lead with enquiries and revenue from organic search, then show the visibility and technical numbers that explain them, with plain commentary on what we changed and what we will do next. Clients see the same Search Console and GA4 data we see. Our SEO packages set out what is included, and if you would like a view of what your current numbers say, we offer a free SEO audit.
Conversions from organic search: the enquiries, calls or sales that came from people who found you through a search engine. Every other number is there to explain that one.
Monthly is right for judging progress. Weekly is fine for spotting technical problems such as pages dropping out of the index, but not for judging whether SEO is working.
No. It is a third-party estimate that Google does not use. It can help compare your site against competitors in broad terms, but it should never be the number a report leads with.
Set them up. In GA4 it takes an afternoon to mark form submissions, phone clicks and purchases as key events. Until then, non-brand organic clicks to your service or product pages are the nearest proxy.
Google Search Console and GA4 cover most of this guide. A paid rank tracker and backlink tool add convenience and history, and are worth it once you are tracking more than a few keywords.
See also, our complete guide to SEO for UK businesses.
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