Deprecated HTML tags checker

What is a Deprecated HTML Tags Checker?

The Deprecated HTML Tags Checker scans a webpage's source code for obsolete HTML elements — tags like <font>, <center>, <marquee>, and <frame> — that are no longer part of the HTML5 standard.

Why This Matters

• Browser inconsistency — Deprecated tags may render differently (or not at all) across different browsers and versions.
• Maintainability — Deprecated presentational tags (like <font>) mix styling with markup, making CSS-based redesigns harder.
• Standards compliance — Passing HTML validation and following current web standards improves long-term maintainability and accessibility.