Why SEO KPIs Matter
You can spend hours on SEO, writing blog posts, fixing page titles, and building links, but how do you know if any of it is working? That’s where SEO KPIs come in.
A KPI, or key performance indicator, is a number that tells you whether you’re moving toward your goals. In SEO, KPIs show you how people find your website through search engines like Google, and what they do once they get there.
Without KPIs, SEO is guesswork. You might feel like things are improving, but you can’t prove it to your boss, your client, or yourself. With the right KPIs, you can see what’s working, spot problems early, and decide where to spend your time and money.
The good news is that you don’t need to track dozens of numbers. A handful of the right ones will tell you most of what you need to know. Here are five that matter most.
1. Keyword Rankings
Keyword rankings show where your pages appear in search results for specific words and phrases. If someone searches “best running shoes for beginners” and your page shows up in third place, that’s your ranking for that keyword.
Rankings matter because most people click one of the top few results and rarely scroll to page two. Tracking your rankings over time tells you whether your SEO work is pushing pages higher or whether they’re slipping.
Focus on keywords that matter to your business, not just any keyword you happen to rank for.
When you check your rankings, you’ll usually see two numbers next to each keyword: impressions and clicks. An impression is counted each time your page shows up in someone’s search results. A click is counted only when someone actually clicks through to your site. So if your page appeared 2,000 times this month and 80 people visited, you had 2,000 impressions and 80 clicks.
Both numbers tell you something. Rising impressions mean Google is showing your pages for more searches. Rising clicks mean those appearances are turning into real visitors.
Google Search Console is the best tool for tracking this. It’s free, the data comes straight from Google, and it shows your average position, impressions, and clicks for every keyword your site appears for.
2. SERP Visibility
Keyword rankings show where your pages appear in search results for specific words and phrases. If someone searches “best running shoes for beginners” and your page shows up in third place, that’s your ranking for that keyword.
Rankings matter because most people click one of the top few results and rarely scroll to page two. Tracking your rankings over time tells you whether your SEO work is pushing pages higher or whether they’re slipping.
Focus on keywords that matter to your business, not just any keyword you happen to rank for.
When you check your rankings, you’ll usually see two numbers next to each keyword: impressions and clicks. An impression is counted each time your page shows up in someone’s search results. A click is counted only when someone actually clicks through to your site. So if your page appeared 2,000 times this month and 80 people visited, you had 2,000 impressions and 80 clicks.
Both numbers tell you something. Rising impressions mean Google is showing your pages for more searches. Rising clicks mean those appearances are turning into real visitors.
Google Search Console is the best tool for tracking this. It’s free, the data comes straight from Google, and it shows your average position, impressions, and clicks for every keyword your site appears for.
3. Click-Through Rate (CTR)
Click-through rate is the percentage of people who see your page in search results and actually click on it. If your page appears 1,000 times and gets 50 clicks, your CTR is 5%.
A good ranking doesn’t help much if nobody clicks. CTR shows how well your listing convinces people to pick you over everything else on the page.
A low CTR is also one of the best warning signs in SEO. When a page gets lots of impressions but very few clicks, something is off. Common causes include:
- The wrong keywords. Your page is showing up for searches it doesn’t really answer. For example, a guide to running shoe sizes might appear for “running shoe sale,” and shoppers skip right past it. That’s a sign to rework the page or target better-fitting keywords.
- Weak titles and descriptions. If your title is vague, generic, or cut off, people scroll on by.
- A crowded results page. Ads, videos, or AI-generated answers can push your result down or answer the question before anyone clicks.
- A low position. Pages near the bottom of page one naturally get fewer clicks than those at the top.
To find these problems, open Google Search Console, sort your pages or keywords by impressions, and look for ones with a low CTR. These are often your quickest wins. To fix them, write clear, specific titles, add a description that tells people what they’ll get, and make sure the page delivers on that promise.
4. Organic Traffic
Organic traffic is the number of visitors who come to your site from unpaid search results. It doesn’t include people who click ads, type in your web address, or arrive from social media.
This is often the clearest sign that your SEO is paying off. Better rankings, more visibility, and a higher CTR should all lead to more organic visitors.
Check organic traffic in Google Analytics and see which pages bring in the most visitors. Watch trends over months rather than days, since traffic naturally rises and falls with seasons and holidays. A sudden drop can point to a technical problem or a Google update worth looking into.
5. Backlinks
Backlinks are links from other websites that point to yours. Search engines treat them like votes of confidence: if trusted sites link to you, your content is probably worth showing.
Quality matters more than quantity, though. One link from a respected site in your industry is worth more than dozens from spammy or unrelated sites, and low-quality links can even hurt you.
Track how many different websites link to you (called referring domains), how trustworthy they are, and whether that number is growing.
Semrush is the best tool for this. Its backlink reports show your new and lost links, so you can see which content attracts links and create more of it. It’s also the top choice for competitive research: you can see who links to your competitors, which keywords they rank for, and where you have gaps. Those gaps are often your best opportunities for new links and new content.
Start Tracking Today
You don’t need to master all five at once. Pick one or two, check them every month, and build from there. Small, steady improvements add up.
Need help setting up your SEO tracking? Get in touch and we’ll help you find the numbers that matter for your business.
Coming up next: Search is changing. More people now get answers straight from AI tools like ChatGPT and Google’s AI Overviews. In our next article, we’ll cover the key KPIs for AEO (answer engine optimization) and the fundamental differences between tracking AEO and traditional SEO. Stay tuned!