What Are SEO Metrics? A Guide to the Numbers That Matter

As long as search engine optimization (SEO) has been around, SEO metrics have been the go-to signs of your website’s performance. These granular variables show how your site performs in search and how users act on each page. 

Your SEO metrics serve as indicators of the health and performance of your website. Knowing the finer details of what’s happening on your website helps you diagnose problems, guide budget decisions and adjust your content for AI Overviews and Generative Engine Optimization (GEO). 

Let’s get into what SEO metrics are and which are the most important ones you should track. 

SEO metrics vs. SEO KPIs 

Although terms like metrics and key performance indicators (KPIs) are often used interchangeably, they are actually different. 

KPIs for SEO are outcome-focused targets linked to business goals, while metrics track the search activity that leads to those outcomes. Metrics can show changes in visibility or engagement, but KPIs confirm whether those changes produce real business value. 

For example: 

• SEO metrics to track include click rates, engagement rates, and conversions. 
• SEO KPIs to track include increased leads or revenue. 

Your SEO metrics often influence your KPIs, making them an important aspect to look at to ensure you’re driving success with your SEO strategy.

What SEO metrics should I track?

Let’s break down the different types of SEO metrics that are important to track when monitoring the health and success of your SEO strategy:

1. Visibility metrics 

In the age of AI search, visibility metrics are the most important SEO metrics to track first. They show how often your website appears in search and whether your visibility is moving in the right direction and likely to increase revenue. 

You’ll want to track:

• Organic traffic: Organic traffic measures the visitors who reach your site through unpaid search. It gives you a baseline view of whether SEO is improving discoverability for your most important topics. This metric is especially important to track for your bottom of the funnel pages, where people are more likely to click and visit your website.
• Keyword rankings: Your ranking for any given keyword measures where your targeted content appears in the SERP. Keyword rankings can signal future traffic and show whether optimization work is improving page-level or topic-level visibility.
• Search visibility: Also called share of voice (SoV), search visibility measures your estimated share of available search traffic across a target keyword set relative to competing sites. Your search visibility connects SEO performance to market share and shows when your competitors are gaining ground, so you can pivot your strategy to get ahead. 

Use tools like Ahrefs or Semrush to track these visibility metrics.

2. Engagement and experience metrics 

Engagement and experience metrics show whether users find your content valuable, engaging, and easy to digest.

Some common SEO metrics you can track here are:

• Engagement rate: Engagement rate measures the percentage of sessions that either last past Google Analytics 4’s threshold or show meaningful activity, like a conversion event or more than one pageview. This SEO metric can show you how your pages resonate with your audience.
• Click-through rate (CTR): Your click-through rate measures the number of search impressions that turn into clicks from the SERP. A higher CTR indicates that your page fits user intent and expectations. 
• Dwell time and bounce rate: These indicate how long users stay on a page (dwell time) and if users leave the page without taking action (bounce rate). Both metrics can reveal gaps between the search intent and your page content, or may point to user experience issues. 

3. Authority and link-based metrics 

These metrics show how much trust and credibility your website has earned in search. They can also explain why some pages and domains rank more easily than others with great content. 

Here are some key metric to track:

• Number of backlinks: Backlinks show how many other websites link to your content, along with the quality and relevance of those links. Search engines treat backlinks as one of the clearest signals of authority and trust, so tracking the number and sources can help indicate your SEO health. 
• Domain and page-level authority scores: Domain-level authority scores, like Domain Authority (DA), are third-party estimates — not used by Google — to show how strong your site appears compared to competing domains. While DA isn’t an official indicator by Google, it serves as a guideline on whether your SEO is going in the right direction (High DA websites typically rank better because of good SEO practices).

4. AI and GEO metrics 

As AI Overviews, chat-based search, and GEO change how people find information, these metrics can help you see how often your brand shows up and how users respond in AI-powered searches.

Here are some key SEO metrics to monitor for AI engines:

• Brand mentions: This tracks how often your brand name appears in responses from tools like ChatGPT, Gemini, and Perplexity. As AI platforms become the new search channel, these mentions can directly influence how people discover your brand. 
• Citation frequency: Citation frequency measures how often AI systems use your URLs as sources. These can work like backlinks, which makes them a useful signal of trust and authority. 
• Referral traffic: While sometimes difficult to fully track, AI referral traffic can help you see how many people visit your site from AI platforms. It can help fill in some gaps with traffic sourcing, as AI search becomes more prominent in the user journey.

Turn SEO metrics into business growth 

The right SEO metrics start with your business and SEO goals. For each KPI, choose a set of metrics that show progress and highlight problems. 

Choose carefully — vanity metrics might make you feel good about progress, but don’t offer much value for return on investment. 

If you want help building a strategy that tracks the metrics that matter, reach out to the team behind SEO.com (WebFX). We can help you focus on the metrics that matter and build an SEO plan that moves the needle for your business. Learn more about our SEO services or contact us today!