A technical SEO checklist for modern web apps

Most SEO problems are technical problems in disguise: a page search engines cannot crawl, a title that says nothing, or a bundle that takes too long to render.

Make every page crawlable

• Use real links between pages, not click handlers.
• Generate a sitemap and keep robots.txt honest.
• Give every page one descriptive h1.
• Avoid rendering critical content only after user interaction.

Write metadata for humans

A title and description should read like a helpful summary, not a list of keywords. Keep descriptions specific and roughly under 155 characters.

<title>Technical SEO checklist · Isam Chajia</title>
<meta name="description" content="Crawlability, metadata, speed and structured data — in priority order." />

Speed is part of the experience

• Serve responsive images in modern formats.
• Load third-party scripts only where needed.
• Reserve space for media to avoid layout shift.

Add structured data where it fits

Structured data helps search engines understand what is actually on a page. Only mark up things that exist and are visible — never add markup for content you do not show.

The most durable SEO strategy is a fast site with clear pages that genuinely answer the visitor's question.