The Complete Technical SEO Checklist for 2026
Canonical, hreflang, Open Graph, viewport, Core Web Vitals and the crawl essentials — a practical technical SEO checklist for the AI era.
Crawl & index essentials
Ship a sitemap, a sane robots.txt that allows AI bots, canonical tags on every page, and avoid JavaScript-only content for anything important.
International signals
Use hreflang to connect language and region variants — critical for multilingual brands and the single most common miss for .co.il / .de / .fr sites.
Social & mobile
Complete Open Graph and Twitter Card tags, a proper viewport meta, and Core Web Vitals in the green.
Metadata hygiene
Unique titles (~55 chars) and meta descriptions (~155 chars) on every page, plus an <html lang> attribute on every document.
Frequently asked questions
What are the most overlooked technical SEO items?⌄
hreflang for multilingual sites, canonical tags, html lang attributes, and ensuring AI bots are allowed in robots.txt.
Do Core Web Vitals affect AI visibility?⌄
Indirectly — they affect crawl efficiency and user experience signals that feed both classic and AI search surfaces.
How long should titles and descriptions be?⌄
Titles around 55–60 characters and meta descriptions around 150–160 characters, unique per page.
