Add or improve your page title for better SEO
Add a compelling meta description (150-160 chars)
Add a viewport meta tag for mobile responsiveness
Use proper heading hierarchy (H1-H6) for content structure
Add alt text to all images for accessibility and SEO
Enable HSTS (Strict-Transport-Security) header
Implement Content Security Policy to prevent XSS attacks
Add associated labels to all form inputs for screen readers
Add a canonical URL to prevent duplicate content issues
Add Open Graph tags for better social media sharing
Add or fix robots.txt to guide search engine crawlers
Add a sitemap.xml to help search engines index your pages
Add Twitter Card tags for better Twitter sharing
Fix expired or invalid TLS certificate immediately