Technical SEO Audit: What We Check and Why

What Is a Technical SEO Audit?

A technical SEO audit examines the foundation your website is built on — the infrastructure that determines whether Google can properly crawl, index, and rank your pages. Great content on a broken foundation won’t rank.

What We Check in Every Audit

Crawlability

• Robots.txt configuration (are you accidentally blocking important pages?)
• XML sitemap completeness and accuracy
• Crawl budget usage (for larger sites)
• Internal linking structure and orphaned pages
• Redirect chains (301 loops that waste crawl budget)

Indexability

• Pages with noindex that should be indexed
• Duplicate content and canonical tag usage
• Thin content pages that dilute site quality
• Index bloat (too many low-value pages indexed)

Performance

• Core Web Vitals (LCP, INP, CLS)
• Server response time (TTFB)
• Image optimization status
• JavaScript render-blocking issues
• Mobile performance vs desktop

On-Page Technical Elements

• Title tags and meta descriptions (missing, duplicate, too long)
• Heading hierarchy (H1, H2, H3 structure)
• Schema markup implementation
• Hreflang tags (for multi-language sites)
• Open Graph and Twitter Card meta

Security & Access

• HTTPS implementation and mixed content
• Security headers present
• HTTP to HTTPS redirect chain

Common Issues We Find

1. Missing or duplicate title tags (found in 73% of audits)
2. Slow server response time (found in 60%)
3. Missing schema markup (found in 85%)
4. Broken internal links (found in 45%)
5. Poor mobile performance (found in 55%)