Crawlability Assessment
Ensure search engines can access and understand your site:
**Robots.txt Review**
- Verify robots.txt is accessible at /robots.txt
- Check for unintended blocking of important content
- Ensure CSS, JavaScript, and images are crawlable
- Validate sitemap reference is included
- Test with Google Search Console robots.txt tester
**XML Sitemap Audit**
- Confirm sitemap exists and is properly formatted
- Verify all important pages are included
- Check that excluded pages are intentionally excluded
- Ensure sitemap is under 50MB and 50,000 URL limits
- Validate last modified dates are accurate
**Crawl Budget Optimization**
- Identify and fix crawl traps (infinite pagination, calendars)
- Block low-value pages from crawling
- Fix redirect chains exceeding 3 hops
- Eliminate soft 404 errors
- Monitor crawl stats in Search Console
**Server Response Codes**
- Identify and fix 404 errors on important pages
- Resolve 500 server errors
- Check redirect implementations (301 vs 302)
- Verify canonical URLs return 200 status
Indexation Analysis
Ensure valuable pages appear in search results:
**Index Coverage**
- Review Search Console Index Coverage report
- Investigate excluded pages for errors
- Check "Crawled - currently not indexed" pages
- Analyze "Discovered - currently not indexed" queue
- Verify submitted pages match indexed pages
**Canonical Implementation**
- Audit canonical tags on all pages
- Check for conflicting canonicals
- Ensure self-referencing canonicals on unique pages
- Verify canonicals point to indexable pages
- Check cross-domain canonical handling
**Duplicate Content**
- Identify internal duplicate content issues
- Check for HTTP/HTTPS and www/non-www versions
- Review parameter-based duplicate pages
- Verify pagination handling
- Audit thin content pages
**Noindex Usage**
- Confirm noindex tags are intentional
- Check for accidentally noindexed important pages
- Review noindex in meta tags vs HTTP headers
- Verify robots meta tag syntax
Site Architecture
Optimize how content is organized and linked:
**URL Structure**
- Ensure URLs are descriptive and readable
- Check for excessive URL parameters
- Verify consistent URL structure across site
- Audit URL length (under 115 characters ideal)
- Check for keyword inclusion in URLs
**Internal Linking**
- Analyze internal link distribution
- Identify orphan pages without internal links
- Check for broken internal links
- Verify important pages receive sufficient links
- Review anchor text optimization
**Navigation Assessment**
- Ensure main navigation is crawlable
- Check for JavaScript-dependent navigation issues
- Verify breadcrumb implementation
- Audit footer link value and structure
- Test pagination implementation
**Site Depth**
- Ensure important pages are within 3 clicks of homepage
- Flatten deep site structures where possible
- Create hub pages to reduce depth
- Verify crawl path to all key pages
Page Speed Optimization
Fast-loading pages rank better and convert more:
**Core Web Vitals**
- Measure Largest Contentful Paint (target under 2.5s)
- Check First Input Delay (target under 100ms)
- Assess Cumulative Layout Shift (target under 0.1)
- Review field data in Search Console
- Compare lab vs field metrics
**Resource Optimization**
- Compress and optimize images
- Minify CSS and JavaScript
- Enable text compression (gzip/Brotli)
- Reduce unused CSS and JavaScript
- Optimize web fonts loading
**Server Performance**
- Check Time to First Byte (target under 200ms)
- Evaluate hosting performance
- Implement CDN for global delivery
- Review caching headers
- Optimize database queries
**Third-Party Impact**
- Audit third-party script impact on speed
- Defer non-critical third-party loading
- Consider self-hosting critical resources
- Monitor third-party performance over time
Mobile Optimization
Mobile-first indexing makes mobile experience critical:
**Mobile Usability**
- Review Mobile Usability report in Search Console
- Test tap target sizes (minimum 48x48 pixels)
- Check for content wider than screen
- Verify text readability without zooming
- Test form usability on mobile
**Responsive Design**
- Verify responsive design implementation
- Check viewport meta tag configuration
- Test across multiple device sizes
- Ensure images scale appropriately
- Verify mobile navigation functionality
**Mobile Page Speed**
- Test mobile page speed specifically
- Optimize for mobile network conditions
- Implement lazy loading for images
- Consider AMP for applicable content
- Test on actual mobile devices
**Mobile-First Content**
- Ensure mobile and desktop content matches
- Verify all important content is visible on mobile
- Check that mobile content is complete, not truncated
- Review mobile user experience flow
Structured Data
Enhance search appearance with schema markup:
**Schema Implementation**
- Verify Organization schema on homepage
- Implement appropriate page-level schema (Article, Product, FAQ)
- Add breadcrumb schema
- Implement LocalBusiness schema if applicable
- Check for logo schema
**Validation**
- Test all structured data with Rich Results Test
- Verify no errors in schema implementation
- Check for warnings that limit feature eligibility
- Monitor structured data in Search Console
- Validate JSON-LD syntax
**Rich Result Optimization**
- Implement FAQ schema for featured snippet eligibility
- Add HowTo schema for instructional content
- Use Review schema appropriately
- Implement Product schema with required fields
- Add Event schema for applicable content
Regular technical SEO audits catch issues before they impact rankings. Quarterly comprehensive audits with monthly monitoring ensure your technical foundation supports content and link building efforts.