Conducting a comprehensive site audit is a critical component of maintaining a healthy and high-performing website. Whether you’re managing a corporate page, an e-commerce store, or a content-driven blog, understanding the key metrics during an audit ensures enhanced performance, faster load times, improved search visibility, and a better user experience. In this article, we explore the most important metrics that digital marketers, developers, and SEO professionals must monitor during a site audit.
1. Site Performance and Load Speed
One of the first indicators to assess is how quickly your website loads. Users have little patience for slow websites, and search engines take speed seriously in ranking algorithms. Performance metrics include:
- Page Load Time – How long it takes for a page to fully load.
- Time to First Byte (TTFB) – Measures the delay between the HTTP request and the first byte of the page being received by the browser.
- Largest Contentful Paint (LCP) – A user-centric metric for measuring perceived load speed.

2. Crawlability and Indexability
A key component of any audit is ensuring that search engines can access and understand your website. If your pages aren’t being crawled or indexed, they won’t show up in search results. Key metrics include:
- XML Sitemap Status – Ensure it is present, up to date, and submitted to search engines.
- Robots.txt File – Check for directives that may unintentionally block important pages.
- Indexed Pages – Compare the number of indexed pages with the expected number to identify discrepancies.
3. On-Page SEO Elements
Proper on-page optimization ensures that each page sends the right signals to search engines. During a site audit, look closely at the following:
- Meta Titles and Descriptions – Ensure uniqueness, proper length, and keyword inclusion.
- Header Tags (H1, H2, etc.) – Pages should include one H1 tag and proper use of subheadings.
- Image Alt Text – Helps with accessibility and image SEO.
- Keyword Usage – Evaluate keyword relevance and density.
4. Technical SEO Issues
Failing to address technical problems can seriously harm your rankings. These issues may not be immediately visible but are crucial:
- Broken Links – Internal or external links that lead to 404 pages reduce user trust and negatively impact SEO.
- Duplicate Content – Search engines may penalize pages with repeated or very similar content.
- Canonical Tags – Ensure correct implementation to prevent duplicate content problems.
- Structured Data – Check for correctly implemented schema markup to enhance rich results.

5. Mobile Usability
With mobile-first indexing in effect, your mobile site has a major impact on your rankings and user engagement. Metrics to examine include:
- Responsive Design – Pages should adapt to various screen sizes.
- Mobile Load Speed – Should remain competitive with desktop versions.
- Touch Element Spacing – Buttons and links should be easily clickable on small screens.
6. Core Web Vitals
Google introduced Core Web Vitals as a new set of metrics measuring real-world user experience. These include:
- Largest Contentful Paint (LCP) – Measures loading performance.
- First Input Delay (FID) – Measures interactivity.
- Cumulative Layout Shift (CLS) – Measures visual stability.
These metrics are increasingly important for organic rankings and should be at the core of any site audit.
7. Backlink Profile
While often considered part of external SEO analysis, your backlink profile’s health should also be evaluated during a comprehensive audit. Key metrics include:
- Total Number of Referring Domains
- Domain Authority or Trust Score of linking domains
- Anchor Text Distribution – Evaluate for over-optimization or irrelevant keywords.
8. Security and HTTPS Status
Site security doesn’t just impact user trust, but also SEO. Google prefers HTTPS-secured websites. During your audit, check:
- SSL Certificate Validity – Ensure the certificate is active and correctly configured.
- HTTPS Redirects – Confirm all HTTP versions redirect to HTTPS.
- No Mixed Content – Ensure all site resources (images, scripts, etc.) load over HTTPS.
Conclusion
A site audit is far more than a surface-level review; it’s a diagnostic evaluation to maintain site health and ensure growth. By focusing on performance, crawlability, on-page elements, technical SEO, mobile usability, Core Web Vitals, backlinks, and security, site owners and marketers can correct issues before they impact rankings or revenue. Regular audits using these key metrics provide a reliable roadmap for continuous website improvement and lasting online success.
