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, page 2 of 2
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.
Optimising HTML Markup for SEO. 
Why input.value Returns a String in JavaScript. Why
input.valueReturns a String in JavaScriptUnderstand why
input.valuereturns a string, howvalueAsNumberandcheckeddiffer, and how to handle strings, files and missingFormDataentries.
Client‑Side Form Validation with the HTML Constraint Validation API. Client‑Side Form Validation with the HTML Constraint Validation API
Use HTML constraint validation attributes and APIs to improve client‑side form feedback without replacing accessible errors or server‑side checks.
Object URLs Need a Lifecycle: Creating and Revoking Blob URLs. Object URLs Need a Lifecycle: Creating and Revoking Blob URLs
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.
Button vs. Link: Native Semantics Before Custom Click Handlers. Button vs. Link: Native Semantics Before Custom Click Handlers
Use links for navigation and buttons for actions, preserving native focus and keyboard behaviour before adding custom click handlers or ARIA roles.