SEO / SEM Metrics

Average Engagement Time is a user-centric metric in Google Analytics 4 that measures the average amount of time individual users spend actively engaged with your website or app. Unlike traditional session-based metrics, this focuses on user behaviour across all their interactions, providing a more holistic view of how deeply users connect with your content. The metric only counts time when users are genuinely engaged, defined as sessions lasting 10 seconds or longer, containing conversion events, or having multiple page/screen views. This metric represents a significant shift from Universal Analytics' session-duration approach, offering a more accurate picture of meaningful user interaction by filtering out brief, low-quality visits that don't represent genuine engagement.

A crawl budget refers to the number of page bots from Google crawl and index on a website within a given timeframe. It affects how often and how many of your pages are indexed by Google. For example, if your website has a large number of pages but only a portion of them are indexed, it may indicate that your budget is being allocated inefficiently. This means that Googlebot is not spending enough time crawling and indexing important pages on your website, which could impact your search engine visibility. Another key aspect of this budget optimization is monitoring your website's log files to track how search engine bots are crawling your site. This data can provide valuable insights into crawl patterns, potential issues, and areas for improvement. When you understand and manage your crawl budget, you boost the chances of showing your content to your target audience.

Domain Authority (DA) is a score developed by Moz that predicts how well a website will rank on search engine results pages (SERPs), measured on a scale from 1 to 100. DA is not a metric used by Google in determining search rankings. It is a third-party benchmarking tool, most useful when comparing your domain's score against competitors rather than as an absolute measure of performance.

Keyword difficulty is an SEO metric that estimates how hard it is to rank on the first page of search results for a specific keyword. A higher score means more established sites dominate the results, requiring more authority, stronger content, and more backlinks to compete.

Keyword ranking is the position a webpage holds in search engine results pages (SERPs) for a specific search term. Higher positions earn more organic traffic and visibility. Because positions fluctuate daily, ranking is typically tracked as an average position over a defined time period.

Organic Search is the measure of visits to a website that come from naturally generated search engine results. These results are not influenced by any paid search activity and are driven purely by Search Engine Optimization (SEO) efforts.

Percent New Users is the share of a website's total visitors who are visiting for the first time, expressed as a percentage. Tracking this metric helps you understand audience growth, campaign reach, and how effectively your site attracts new visitors versus retaining existing ones.

Reach per Million Users is the number of people, out of every million in Alexa's browser panel, who visited a website on a given day. It estimated how widely a site was seen, not how often, and marketers used it to track audience trends and compare their site with competitors. The data came from Alexa toolbar and extension users, so it was always a sample-based estimate. Amazon retired Alexa Internet on May 1, 2022, so the metric is no longer widely used.

A session is a group of user interactions with a website that occur within a defined timeframe. Analytics platforms define a session as a period of continuous engagement that begins when a user arrives and ends after 30 minutes of inactivity or when the user leaves. Each session can contain multiple interactions, including page views, events, downloads, form submissions, and e-commerce transactions. Sessions are fundamental to understanding user behaviour patterns and website performance, capturing the complete journey a user takes during a single visit.

User Engagement is a foundational GA4 metric that measures the total time your website or app was in the foreground of users' devices during a specified date range. This metric captures the aggregate engagement time across all users and sessions, providing a comprehensive view of total user attention your digital property receives. Unlike user-averaged metrics, User Engagement represents the raw sum of all engagement duration, making it particularly valuable for understanding overall content consumption and audience reach. The metric only counts time when your site or app is actively in the foreground and meets GA4's engagement criteria (sessions lasting 10+ seconds, containing conversion events, or having multiple page/screen views), ensuring the measurement reflects genuine user attention rather than passive or accidental visits.

Users represents the count of unique individuals who have visited your website during a specified time period, encompassing both new and returning visitors. In Google Analytics 4 (GA4), this metric is tracked through client IDs that are automatically assigned to each unique visitor upon their first visit to your site. This identifier allows the platform to distinguish between different individuals and prevents double-counting when the same person visits multiple times within the measurement period.

Website Bounce Rate measures the percentage of sessions where a visitor views only one page and leaves without further interaction. A single-page session ends when a user closes the browser, clicks an outbound link, hits the back button, or lets the session time out. Bounce rate signals content relevance, page experience quality, and traffic-to-intent match.