Validated against official HTML standards
Target for text-to-HTML ratio
HTML analysis included on every plan
Why HTML Quality Matters
Poor HTML Quality
- ✗SEO penalties: Duplicate metas and low text ratios hurt rankings
- ✗Accessibility failures: Forms without labels exclude users
- ✗Performance drag: Render-blocking CSS slows page loads
- ✗Lost conversions: Pages without CTAs miss revenue
With Lemwatch Analysis
- Duplicate meta tags and canonicals detected automatically
- Accessibility issues flagged with clear fixes
- Render-blocking resources counted and highlighted
- CTA presence verified on every page
Beyond Simple Validation
Comprehensive HTML quality analysis that covers standards, SEO, accessibility, and performance.
W3C HTML Validation
Check your HTML against W3C standards. Find errors, warnings, and info messages that affect rendering and accessibility.
Deep HTML Quality Analysis
Beyond validation — check text-to-HTML ratio, deprecated tags, empty links, generic link text, and inline JavaScript bloat.
Duplicate Meta Detection
Find duplicate title tags, meta descriptions, and canonical URLs. Duplicate metadata confuses search engines and hurts rankings.
Accessibility Checks
Detect forms without labels, empty links, and missing alt text. Improve accessibility scores and user experience.
Performance Impact Analysis
Count render-blocking CSS, external stylesheets, and inline JS size. Identify HTML-level performance bottlenecks.
Text-to-HTML Ratio
Measure the ratio of visible text to HTML code. Low ratios can signal thin content or bloated markup that search engines penalize.
CTA Detection
Verify your pages have clear calls-to-action. Pages without CTAs miss conversion opportunities.
Charset & Encoding
Verify charset declarations are present and correct. Missing or wrong encoding causes character display issues across browsers.
How HTML Analysis Works
Automatic, continuous quality checking
Automatic Scanning
HTML validation and deep analysis run automatically during every site check. No separate setup needed.
Review Issues
See categorized issues: validation errors, deprecated tags, SEO problems, accessibility gaps, and performance concerns.
Fix & Improve
Address issues by priority. Re-scan to verify fixes. Track improvement over time with historical comparisons.
HTML Validation FAQ
Common questions about HTML quality analysis
Improve Your HTML Quality
W3C validation, SEO checks, accessibility analysis — all in one automatic scan. Free on all plans.