How to Run a Website Health Check (Step-by-Step)

Martyn RanceMartyn Rance
How to Run a Website Health Check (Step-by-Step)

Just as a car requires regular servicing to stay on the road, your website requires routine health checks to ensure optimal performance, reliability, and search engine visibility. Websites that perform monthly audits see up to 43% better search rankings and 32% higher conversion rates than those that do not.

A comprehensive website health check evaluates everything from backend technical elements and site speed to content quality, user experience (UX), and security. Here is a step-by-step guide to running a complete website health check to protect your digital presence and drive growth.

Step 1: Set Up Your Auditing Tools

Before diving into the audit, ensure you have the right infrastructure in place to collect accurate data.

  • Google Search Console (GSC): This is the most essential free tool for your SEO stack. GSC shows you which pages are indexed, which ones have crawl errors, and how your Core Web Vitals are performing.
  • Google Analytics 4 (GA4): Connect GA4 to monitor user behavior, organic traffic, bounce rates, and conversions.
  • Web Crawlers: Desktop or cloud-based crawlers like Screaming Frog, Semrush, or Ahrefs simulate how search engine bots navigate your site, allowing you to quickly spot broken links, redirect chains, and missing metadata.

Step 2: Fortify Website Security

Security is a prerequisite for user trust and search rankings. In fact, 85% of people will not continue browsing a site if it is not secure.

  • SSL Certificate & HTTPS: Ensure your website has a valid SSL certificate and is served entirely over HTTPS. Browsers label HTTP sites as "Not Secure," which drastically increases bounce rates.
  • Security Headers: Add basic HTTP security headers—like Strict-Transport-Security (HSTS), Content-Security-Policy (CSP), and X-Frame-Options—to protect against code injection and downgrade attacks.
  • Malware & Vulnerability Scans: Use tools like Sucuri SiteCheck to scan for malware, outdated plugins, and compromised code.

Step 3: Analyze Site Speed and Core Web Vitals

A high-performing site is key to keeping visitors engaged; if your site takes more than 3 seconds to load, you will likely lose visitors. Google measures user experience using Core Web Vitals, which are official ranking signals. Evaluate your site using Google PageSpeed Insights targeting these three metrics:

Largest Contentful Paint (LCP): Measures loading performance. The largest element on the page should load in 2.5 seconds or less.

Interaction to Next Paint (INP): Measures interactivity. Your page should respond to user clicks or taps in 200 milliseconds or less.

Cumulative Layout Shift (CLS): Measures visual stability. The score should be 0.1 or less to ensure the page doesn't suddenly "jump" while loading.

Fixes: Compress your images (using formats like WebP), minify CSS and JavaScript, enable browser caching, and implement a Content Delivery Network (CDN).

Step 4: Check Mobile-Friendliness and Accessibility

Over 60% of global web traffic comes from mobile devices, and Google uses mobile-first indexing to rank your site.

  • Mobile UX: Run your site through Google's Mobile-Friendly Test to identify issues like text that is too small to read, tap targets that are too close together, and horizontal scrolling.
  • Web Accessibility: Ensure your site is usable by people with disabilities. Check for sufficient color contrast (aim for a 4.5:1 ratio), descriptive alt text for all images, and proper keyboard navigation. Automated tools like WAVE or Lighthouse can help spot accessibility barriers.

Step 5: Conduct a Technical SEO Audit

Search engines must be able to discover, crawl, and index your pages. If they cannot access your content, you will not rank.

  • Resolve Crawl Errors: Look at the "Coverage" or "Indexing" report in GSC. Fix any 404 (Not Found) errors by redirecting them to relevant live pages, and eliminate 5xx (Server) errors.
  • Check robots.txt and XML Sitemaps: Ensure your robots.txt file is not accidentally blocking search engines from crawling important pages or critical CSS/JS files. Validate your XML sitemap to confirm it only contains the high-value URLs you want indexed.
  • Fix Broken Links and Redirect Loops: Broken internal links create dead ends for users and bots. Redirect loops (where pages infinitely redirect to each other) prevent search engines from reaching your content. Crawl your site to identify and fix these issues immediately.

Step 6: Audit Content Quality and Implement "Pruning"

Over time, websites accumulate "site bloat"—outdated, thin, or low-value pages that drain your crawl budget and drag down overall site quality. Evaluate your pages based on organic traffic, engagement, and conversions. Then, apply the Content Pruning strategy:

  • Leave: Keep high-performing pages that fulfill search intent.
  • Improve: Update outdated statistics, add depth, and enhance E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) signals on pages that have potential but are underperforming.
  • Consolidate: Merge thin, competing pages that suffer from keyword cannibalization into one authoritative master resource.
  • Delete and Redirect: Remove obsolete content (like expired event pages) and set up 301 redirects to pass link equity to the most relevant live page.

Step 7: Review Site Architecture and Internal Linking

Your site architecture dictates how link authority flows through your website.

  • Flatten Your Structure: Keep your most important content reachable within three to four clicks from the homepage.
  • Fix Orphan Pages: Orphan pages have no internal links pointing to them, making them nearly impossible for crawlers or users to find. Identify them and add relevant contextual links from other strong pages on your site.
  • Optimize Anchor Text: Avoid generic link text like "click here." Instead, use descriptive, keyword-relevant anchor text that tells users and search engines exactly what the destination page is about.

Step 8: Assess Your Backlink Profile

Off-page SEO acts as a trust signal for search engines. An audit of your backlink profile ensures you are receiving healthy link equity.

  • Analyze Link Quality: Use a backlink checker to view the domains linking to your site. Look for a natural distribution of referring domains and industry relevance.
  • Identify and Disavow Toxic Links: Look for sudden spikes in low-quality or spammy links, which can harm your reputation. If you identify an influx of toxic links (e.g., from unrelated foreign language sites or spam networks), compile a list and submit it to Google's Disavow Tool so search engines ignore them.

Conclusion: Establish a Maintenance Routine

A website health check is not a "one-and-done" task. To maintain digital vitality, establish a recurring schedule:

  • Weekly: Monitor uptime, verify backups, and check for broken links.
  • Monthly: Audit site speed, update your CMS/plugins, and review GSC for indexing errors.
  • Quarterly: Run full technical crawls, assess accessibility compliance, and review search rankings.
  • Annually: Perform a full content pruning audit and review legal/security compliance.

By consistently applying these steps, you will build a fast, secure, and user-friendly website that commands search engine visibility and maximizes conversions.