How to Do a Site Audit: The Complete SEO Checklist

1. What Is a Site Audit and Why You Need One

A site audit (also called an SEO audit) is a comprehensive analysis of your website to identify technical errors, on-page issues, content problems, and link weaknesses that are preventing it from ranking as high as it should in search engines.

Think of it as a health check-up for your website. Just as a medical exam uncovers underlying conditions before they become serious, a site audit surfaces hidden problems — broken pages, slow load times, missing metadata, duplicate content — before they compound and tank your rankings.

Websites that skip regular audits accumulate technical debt. Outdated redirect chains, orphaned pages, crawl errors, and degraded Core Web Vitals scores are all common issues that build up silently over time. A site audit gives you the full picture so you can prioritize the right fixes.

2. Technical SEO Checks

Technical SEO is the foundation. If search engine bots cannot crawl and index your pages efficiently, all your content and link-building efforts are wasted. Start every audit here.

Site Speed and Performance

Page speed is a confirmed Google ranking factor. Use Google PageSpeed Insights to measure your Time to First Byte (TTFB), First Contentful Paint (FCP), and Largest Contentful Paint (LCP). Aim for an LCP under 2.5 seconds. Common speed fixes include enabling compression (Gzip/Brotli), optimizing images, leveraging browser caching, and minifying CSS/JS.

Mobile-Friendliness

Google uses mobile-first indexing — it crawls and ranks based on the mobile version of your site. Test every page with Google's Mobile-Friendly Test. Look for touch targets that are too small, text that requires zooming to read, and content wider than the screen. Responsive design is non-negotiable in 2026.

HTTPS and Security

Every page should load over HTTPS. Check for mixed content warnings (HTTP resources loaded on HTTPS pages), expired SSL certificates, and HTTP pages that fail to redirect to HTTPS. Also confirm that the canonical www/non-www version consistently redirects to a single preferred version.

Crawl Errors and Indexability

Check Google Search Console for crawl errors and coverage issues. Common problems include 404 pages from broken internal links, soft 404s (pages returning 200 status but showing "not found" content), pages blocked by robots.txt that should be indexed, and noindex tags applied accidentally to important pages.

Additional Technical Checks

• XML sitemap: present, submitted to GSC, contains only indexable URLs
• Redirect chains: avoid chains longer than 1 hop; fix loops
• Canonical tags: all pages have a self-referencing canonical or point to the correct canonical URL
• Structured data: no schema markup errors detected in Rich Results Test
• Hreflang: correctly implemented for multilingual sites
• Pagination: rel=next/prev or standalone canonical per page

3. On-Page SEO Checks

On-page SEO covers everything within the HTML of a page. These elements directly signal to Google what each page is about and influence click-through rates from the SERP.

Title Tags

Every page needs a unique title tag under 60 characters that includes the primary keyword near the beginning. Audit for: missing title tags, duplicate titles across pages, overly long titles that get truncated, and titles that are too generic (e.g., "Home" or "Page 1").

Meta Descriptions

While not a direct ranking factor, meta descriptions influence CTR. Check for: missing meta descriptions, duplicates, descriptions over 160 characters, and descriptions that do not include a compelling reason to click. Each meta description should be unique and accurately reflect the page content.

H1 Tags

Each page should have exactly one H1 tag that includes the primary keyword. Flag pages with: no H1, multiple H1s, or H1s that do not align with the page's target topic. H2 and H3 tags should organize the content logically and include secondary keywords where natural.

Content Quality

Evaluate every indexed page for: thin content (fewer than ~300 words without strong authority), keyword stuffing that reads unnaturally, outdated information that needs refreshing, and missing multimedia (images, video) where they would enhance the user experience.

4. Content Audit

A content audit reviews every piece of content on your site to determine what is working, what needs improvement, and what should be removed or consolidated. It is one of the highest-ROI activities in SEO.

Thin Content

Thin content pages provide little value to users — they are short, vague, or have low informational depth. Google's Helpful Content System explicitly penalizes sites with a high proportion of thin content. Identify pages with high bounce rates, low dwell time, and fewer than 300 words. Either expand these pages significantly or consolidate them into stronger pieces.

Duplicate Content

Duplicate content confuses search engines about which URL to rank and splits link equity. Common sources include URL parameters (e.g., ?sort=price&color=blue), session IDs, printer-friendly page versions, and syndicated content. Resolve with canonical tags, 301 redirects, or noindex tags depending on the situation.

Keyword Cannibalization

Keyword cannibalization occurs when two or more pages on your site compete for the same keyword. This splits ranking signals and can cause both pages to rank lower than one consolidated page would. To identify cannibalization, use Google Search Console's Performance report to find queries where multiple URLs appear, or use a rank tracker to spot URLs that swap positions frequently. The fix is to merge pages, redirect the weaker one, or differentiate them clearly by targeting different search intents.

5. Link Audit

Your link profile — both internal links and incoming backlinks — plays a major role in rankings. A link audit checks for broken links, internal linking gaps, and toxic backlinks that could harm your site.

Broken Links

Broken internal links (404 errors) waste crawl budget, create a poor user experience, and orphan pages from your internal PageRank flow. Run a full crawl to find all internal 404s, then fix each by either updating the link destination or setting up a 301 redirect. Broken external links (outbound 404s) do not directly affect rankings but harm credibility and user trust.

Internal Linking Structure

A strong internal linking structure distributes PageRank from your high-authority pages to pages you want to rank. Audit for: orphan pages (no internal links pointing to them), pages with too few internal links, and important pages buried more than 3 clicks from the homepage. Use descriptive, keyword-rich anchor text for internal links wherever natural.

Toxic Backlinks

Toxic backlinks come from spam sites, link farms, irrelevant directories, and sites with a history of Google penalties. While Google has improved at ignoring rather than penalizing bad links, large volumes of spammy links to your site can trigger a manual action. Analyze your backlink profile regularly. If you identify a significant toxic link pattern, use Google's Disavow Tool as a last resort — only after attempting manual link removal.

6. Core Web Vitals (LCP, INP, CLS)

Core Web Vitals are a set of real-world performance metrics that Google uses as a ranking signal as part of the Page Experience update. They measure loading, interactivity, and visual stability.

7. How to Run a Site Audit with Rank Crown

Manually checking every page on your website is impractical at scale. Rank Crown's Site Audit tool automates the entire process — crawling your site, detecting issues, and presenting them in a prioritized dashboard so you know exactly where to focus your effort.

Here is how to run your first audit in Rank Crown:

1. 1

   Enter your domain

   Navigate to the Site Audit tool and enter your website's root domain. Rank Crown will begin crawling immediately.

2. 2

   Configure crawl settings

   Set your crawl depth, user-agent (Googlebot or desktop/mobile browser), and maximum pages to crawl. For most sites, a 3-level deep crawl covering 500–5,000 pages is a good starting point.

3. 3

   Review your Health Score

   Rank Crown calculates an overall site health score from 0–100. Anything below 70 indicates significant issues that need immediate attention.

4. 4

   Explore issue categories

   Issues are grouped into categories: Errors (critical), Warnings (important), and Notices (minor). Start with Errors.

5. 5

   Export and action the report

   Export the full issue list as CSV. Assign issues to your development team with priority levels, then re-crawl after fixes to confirm resolution.

8. Prioritizing Fixes: Critical vs Important vs Minor

A typical site audit returns dozens or hundreds of issues. Not all of them deserve equal attention. Use this framework to prioritize:

9. How Often Should You Run Site Audits?

The right audit frequency depends on the size and activity level of your website. Here are general guidelines:

The most effective approach is to set up continuous monitoring rather than point-in-time audits. Tools like Rank Crown's Site Audit can be scheduled to crawl your site automatically so you receive alerts when new issues emerge — allowing you to fix problems before they impact your rankings.