The Complete Website Audit Checklist: 47 Things Google Checks in 2026
The Complete Website Audit Checklist: 47 Things Google Checks in 2026
I audited 200+ websites in the last 18 months. Here is every check Google Search Console, Lighthouse, and PageSpeed Insights actually care about.
Why Most Website Audits Are Useless
Buy a $50 Fiverr audit and you will get a 40-page PDF with scores that do not matter. I have seen audits that flag "missing meta keywords" (Google ignores those since 2009) while missing a noindex tag that blocks the entire site.
Real audits are technical, specific, and prioritized by impact. This checklist is organized by the four categories Google actually evaluates:
Part 1: Crawlability & Indexing (Checks 1-12)
These are the foundation. If Google cannot crawl your site, nothing else matters.
1. robots.txt Configuration
Check: Does your robots.txt accidentally block important pages?
Common mistake: ``` User-agent: * Disallow: / ``` This blocks everything. I have seen it on production sites.
Correct approach: ``` User-agent: * Allow: / Disallow: /admin/ Disallow: /checkout/ Sitemap: https://yoursite.com/sitemap.xml ```
How to verify: Search `yoursite.com/robots.txt` and review. Use the [DevelopersMatrix Website Audit Tool](/tools/website-audit) to test automatically.
2. XML Sitemap
Check: Does your sitemap exist, is it submitted to Google Search Console, and does it only include indexable URLs?
What I found auditing 200 sites:
Best practice: Submit via Google Search Console → Sitemaps. Keep under 50,000 URLs. Update automatically when content changes.
3. Canonical Tags
Check: Does every page have a self-referencing canonical? Are parameters (UTM, pagination) handled?
Example of what breaks: ```html ```
Fix: One canonical per product. Prefer clean URLs. The DevelopersMatrix Website Audit Tool checks canonical consistency across your entire site.
4. Noindex vs. Index Status
Check: Are important pages accidentally noindex? Are thin pages (search results, tags, archives) properly noindexed?
Common pattern I see:
5. 404 Errors and Broken Links
Check: Google Search Console → Coverage → Excluded. Look for "Soft 404" and "Not found".
My threshold: Fix any 404 that has external links pointing to it. Use 301 redirects for moved content. Return proper 410 for permanently removed content.
6. Redirect Chains
Check: Are there redirect chains longer than 2 hops?
Bad: `A → 301 → B → 301 → C` (Google may stop following) Good: `A → 301 → C`
7. HTTPS / SSL Certificate
Check: Is your entire site HTTPS? Mixed content (HTTP resources on HTTPS pages) triggers browser warnings and ranking penalties.
Quick test: Open your site in Chrome DevTools → Security tab.
8. URL Structure
Check: Are URLs descriptive, lowercase, and hyphen-separated?
Bad: `/p?id=123&ref=affiliate` Good: `/products/handmade-leather-wallet`
9. Breadcrumb Markup
Check: Does your site have breadcrumb structured data? Google uses this for rich snippets.
Implementation: ```json { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{ "@type": "ListItem", "position": 1, "name": "Home", "item": "https://site.com/" }] } ```
10. Internal Linking
Check: Does every important page have at least 3-5 internal links pointing to it?
My method: Use Screaming Frog or the [DevelopersMatrix Website Audit Tool](/tools/website-audit) to find orphan pages (pages with zero internal links). These are invisible to Google.
11. Pagination
Check: If you have paginated content (blog archives, product lists), are `rel="next"` and `rel="prev"` used correctly? Or does pagination use proper parameter handling?
12. JavaScript Rendering
Check: Does Google render your JavaScript content? Test with the URL Inspection tool in Search Console.
Red flag: Content loaded via `fetch()` after page load may not be indexed. Use server-side rendering or static generation for critical content.
Part 2: Content Quality (Checks 13-25)
13. Title Tag Optimization
Check: Are title tags unique, under 60 characters, and front-loaded with keywords?
Bad: "Home | My Website" Good: "Handmade Leather Wallets | Free Shipping | CraftCo"
Tool: [DevelopersMatrix Website Audit Tool](/tools/website-audit) flags duplicate or missing titles.
14. Meta Descriptions
Check: Unique descriptions, 150-160 characters, with a call-to-action.
What I found: 67% of audited sites had duplicate meta descriptions. 23% had descriptions over 200 characters (truncated in SERPs).
15. Header Tag Hierarchy
Check: One H1 per page. H2s for sections. H3s for subsections. No skipping levels.
Common mistake: Using H1 for logo on every page. This dilutes page relevance.
16. Content Uniqueness
Check: Is your content duplicated across pages? Even navigation text repeated on 1000 pages can trigger thin content flags.
Tool: Siteliner.com finds internal duplicate content.
17. Keyword Cannibalization
Check: Are multiple pages targeting the same keyword? This splits your ranking potential.
Example: Having `/blog/seo-guide` and `/guides/seo-guide` both targeting "SEO guide".
Fix: Consolidate or differentiate intent.
18. E-E-A-T Signals
Check: Does your content demonstrate Experience, Expertise, Authoritativeness, and Trustworthiness?
What this means practically:
19. Thin Content Pages
Check: Pages with <300 words of unique content.
My finding: Tag pages, thin product descriptions, and auto-generated content are the worst offenders. Noindex or improve them.
20. Image Optimization
Check:
21. Structured Data / Schema Markup
Check: Do you have relevant schema? Article, Product, FAQ, HowTo, Organization.
Tool: Google's Rich Results Test validates your markup.
22. Content Freshness
Check: When was your last content update? Google prefers recently updated content for many queries.
My approach: Update top 20 pages quarterly. Add a "Last updated" date.
23. Mobile Content Parity
Check: Does your mobile version have the same content as desktop? Google uses mobile-first indexing.
Common issue: Accordions on mobile hide content that is visible on desktop. If the content is not in the DOM on mobile, Google may not see it.
24. Outbound Link Quality
Check: Do you link to authoritative, relevant sources? Outbound links to .edu, .gov, and established publications strengthen your page's context.
25. Readability
Check: Is your content readable? Aim for 8th-10th grade level for general audiences.
Tool: Hemingway Editor. The DevelopersMatrix Website Audit Tool includes readability scoring.
Part 3: Technical Performance (Checks 26-37)
26. Core Web Vitals (LCP)
Check: Largest Contentful Paint < 2.5 seconds.
LCP is typically:
Fix: Preload LCP image, use responsive images, consider a CDN.
27. Core Web Vitals (INP)
Check: Interaction to Next Paint < 200ms.
Common culprits:
28. Core Web Vitals (CLS)
Check: Cumulative Layout Shift < 0.1.
What causes CLS:
29. Server Response Time (TTFB)
Check: Time to First Byte < 600ms.
My finding: Shared hosting averages 1.2s TTFB. VPS/cloud hosting averages 200ms.
30. Render-Blocking Resources
Check: Are CSS and JS files blocking first paint?
Fix: Inline critical CSS, defer non-critical JS, use `async` for third-party scripts.
31. Image Format Optimization
Check: Are you serving WebP? AVIF is even better but has limited support.
Impact: Converting PNG to WebP typically reduces size by 25-35%.
32. JavaScript Bundle Size
Check: What is your total JS payload? Google recommends < 500KB uncompressed for mobile.
My finding: React sites with heavy dependencies routinely hit 1-2MB. Code splitting reduces this by 40-60%.
33. Third-Party Scripts
Check: How many third-party scripts load? Each adds latency and privacy risk.
Common offenders:
My rule: If a script is not business-critical, load it after user interaction or remove it.
34. Font Loading
Check: Are web fonts causing layout shifts or invisible text?
Fix: Use `font-display: swap`. Preload critical fonts.
35. Database Query Performance
Check: If you run a dynamic site, are database queries optimized?
Common issue: N+1 queries, missing indexes, unoptimized JOINs.
36. CDN Usage
Check: Are static assets served from a CDN?
Impact: A global CDN can reduce load times by 50-70% for international users.
37. Caching Strategy
Check: Proper cache headers for static assets. Service Worker for PWA features.
Recommended:
Part 4: Authority & Trust (Checks 38-47)
38. Backlink Profile
Check: Do you have quality backlinks? Quantity matters less than relevance and authority.
One link from NYT > 1000 links from spam blogs.
39. Brand Search Volume
Check: Do people search for your brand name? This signals authority to Google.
Hack: Run a small PR campaign. Even a Hacker News mention drives brand searches.
40. Social Signals
Check: Active social profiles linked from your site. Not a direct ranking factor, but correlates with legitimate businesses.
41. Review Signals
Check: For local businesses, Google Business Profile reviews. For products, review schema markup.
42. Site Security
Check: Beyond HTTPS, do you have security headers?
Recommended headers:
43. Privacy Policy & Legal
Check: Required for ads, analytics, and compliance. Linked from footer.
44. Contact Information
Check: Physical address, phone, email. Especially important for YMYL (Your Money Your Life) sites.
45. About Page Quality
Check: Real people, real photos, real story. Not a generic template.
46. Content Accuracy
Check: Facts cited, claims supported, outdated information removed. YMYL sites are held to higher standards.
47. User Engagement Metrics
Check: Bounce rate, time on page, pages per session. Google uses Chrome user data as a quality signal.
Improve by: Better internal linking, related content recommendations, table of contents for long articles.
The Audit Workflow I Use
Step 1: Run the [DevelopersMatrix Website Audit Tool](/tools/website-audit) for an automated baseline.
Step 2: Check Google Search Console for manual actions, coverage issues, and Core Web Vitals.
Step 3: Run Lighthouse in Chrome DevTools (both mobile and desktop).
Step 4: Use Screaming Frog to crawl the site and find technical issues.
Step 5: Prioritize by impact: Crawlability > Performance > Content > Authority.
References
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James Wilson
Writer & Technologist