Analyze a page's meta tags, Open Graph tags, and Twitter Card tags. Returns an SEO score with actionable recommendations for title, description, social sharing tags, and other meta elements.

Audit the heading hierarchy (H1-H6) of a page. Detects missing H1, skipped heading levels, duplicate headings, empty headings, and provides a visual hierarchy tree.

Crawl a page and check all links for broken URLs, redirects, and missing anchor text. Tests up to 50 links by default with concurrent requests.

Analyze keyword density and distribution across a page. Returns top single words, two-word and three-word phrases with density percentages. Optionally checks placement of a target keyword in title, H1, meta description, and first paragraph.

Measure basic page speed metrics including Time to First Byte, total load time, HTML size, and resource counts (scripts, stylesheets, images). Identifies render-blocking resources and missing optimizations.

Parse and analyze a website's sitemap.xml. Handles both sitemap indexes and URL sets. Reports URL counts, lastmod freshness, duplicate URLs, protocol consistency, and sitemap compliance issues. Automatically tries /sitemap.xml and falls back to robots.txt.