
Optimising HTML Markup for SEO
Optimise HTML markup for SEO and accessibility with semantic elements, heading structure, alt text, clean code, anchor text, and crawler‑friendly structure.
Articles
HTML is where a page explains its structure to browsers, search engines, and assistive technology before styling or JavaScript gets involved. The articles here focus on semantic choices and the small markup details that make an interface more reliable and accessible.

Optimise HTML markup for SEO and accessibility with semantic elements, heading structure, alt text, clean code, anchor text, and crawler‑friendly structure.

Understand why HTML form values are always strings in JavaScript, plus safe conversion for numbers, booleans, checkboxes, radio buttons, and FormData.

Use HTML constraint validation attributes and APIs to improve client‑side form feedback without replacing accessible errors or server‑side checks.

Create object URLs for local file previews, revoke them at the right time, and avoid retaining Blob data too long or breaking a browser consumer.

Use links for navigation and buttons for actions, preserving native focus and keyboard behaviour before adding custom click handlers or ARIA roles.