The 2026 Technical SEO Audit Checklist: 47 Points That Actually Matter | AuditMySite

· 5 min read

Most Technical Audits Waste Your Time

A typical crawl returns thousands of "issues." Maybe 15% actually affect rankings. After 800+ technical audits, here are the 47 checks that consistently correlate with ranking improvements.

Priority 1: Crawlability and Indexation

  1. Robots.txt: Anything important accidentally blocked?
  2. XML sitemap: Only indexable 200-status URLs? Remove 301s, 404s, noindexed pages.
  3. Index coverage: Check GSC "Excluded" — are important pages excluded?
  4. Crawl budget: For 10K+ page sites, are bots wasting budget on faceted navigation?
  5. Orphan pages: Found via sitemap but not crawl = orphaned.
  6. Redirect chains: Max 1 hop. Chains of 3+ lose PageRank.
  7. 404s with backlinks: These leak authority. Fix with redirects.

Priority 2: On-Page Elements

  1. Unique title tags: Duplicates confuse Google.
  2. Title length: Under 60 chars, primary keyword near beginning.
  3. Meta descriptions: Not ranking factor but impacts CTR.
  4. H1 tag: Exactly one per page with primary keyword.
  5. Canonical tags: Self-canonical unless intentional. No conflicting signals.
  6. Hreflang: Verify return tags and correct codes.
  7. Structured data: Validate with Rich Results Test.
  8. Image alt text: Helps Google understand images for image search.

Priority 3: Site Architecture

  1. Click depth: Important pages within 3 clicks of homepage.
  2. Internal link distribution: Pages with <5 internal links are under-supported.
  3. URL structure: Flatten deep hierarchies where possible.
  4. Breadcrumbs: With BreadcrumbList schema.
  5. Pagination: Proper rel="next"/"prev" or load-more patterns.
  6. Faceted navigation: Prevent millions of indexable filter URLs.

Priority 4: Performance

  1. LCP under 2.5s (mobile field data)
  2. INP under 200ms
  3. CLS under 0.1
  4. TTFB under 800ms
  5. Page weight: Under 2MB content pages, under 4MB media-heavy
  6. JS bundle: Main bundle under 200KB compressed
  7. Images: Next-gen formats, properly sized, lazy-loaded
  8. Third-party scripts: Remove any not generating revenue or critical data

Priority 5: Mobile

  1. Mobile-first indexing verified in GSC
  2. Viewport meta tag configured
  3. Touch targets: 48x48 CSS pixels minimum, 8px spacing
  4. No horizontal scrolling
  5. Content parity: All desktop content available on mobile
  6. No intrusive interstitials on mobile

Priority 6: Security

  1. HTTPS everywhere: No mixed content
  2. SSL certificate: Monitor expiration
  3. Security headers: HSTS, X-Content-Type-Options, X-Frame-Options
  4. Safe Browsing: No warnings on your domain

Priority 7: Local

  1. GBP NAP consistency with website
  2. LocalBusiness schema with coordinates and hours
  3. Geo-targeting in GSC

Priority 8: Content Quality

  1. Thin content: Pages <300 words — expand or consolidate
  2. Duplicate content: >85% overlap — consolidate or canonical
  3. Freshness: Time-sensitive pages updated annually, dateModified in schema
  4. E-E-A-T signals: Author pages, credentials, citations
  5. Broken outbound links: Check and fix quarterly

Audit Workflow

  1. Week 1: Crawlability and indexation
  2. Week 2: On-page and architecture
  3. Week 3: Performance
  4. Week 4: Mobile, security, content

Re-crawl after each phase. Track rankings weekly. Brand identity amplifies technical SEO — explore strategic brand positioning. For local businesses, see what top Sacramento contractors do to dominate local search.

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