Get metadata right
Generate title tags and meta descriptions with live previews, and keep them within the length Google typically displays. Good metadata improves click-through rates from search.
Inspect URLs and headers
Parse URLs into their components, decode query strings and inspect HTTP response headers to diagnose redirects, caching and security issues.
Keep sites crawlable
Validate robots.txt, maintain an XML sitemap and ensure important pages are indexable. Crawlability is the foundation every other SEO effort depends on.