Semantic HTML in ASP.NET Core MVC | SEO and Accessibility for Developers

Published 11/06/2026

Description

Learn how semantic HTML improves SEO and accessibility in ASP.NET Core MVC by giving your pages clearer structure and more meaningful markup. Google’s SEO guidance highlights the importance of headings, descriptive image markup, and crawlable HTML, while accessibility guidance explains that semantic HTML helps identify content types and relationships more clearly for assistive technologies. In this episode of Technical SEO in ASP.NET Core MVC, I walk through how semantic elements such as header, main, nav, section, article, aside, figure, and footer help organize content in a way that is easier to understand and maintain. Accessibility guidance recommends using the correct semantic HTML tags to identify different types of content and their importance instead of relying on purely visual structure. 0:00 - Introduction 0:11 - Description 6:27 - Basic Html5 9:43 - Conclusion What you’ll learn: What semantic HTML elements are and why they matter. Semantic HTML gives structure and meaning to your markup, which improves readability for both developers and assistive technologies. How structural elements provide context. Elements such as headings, images, and standard HTML markup give search systems and users clearer signals about the page and its sections. How semantic markup supports crawlability and comprehension. Google’s documentation shows that it relies on standard HTML elements such as headings, links, and img tags with alt text to understand content and context. Why semantic HTML helps accessibility. Accessibility guidance says correct semantic structure improves navigation and interpretation for users who rely on assistive technology. Why this leads to cleaner code in ASP.NET Core MVC. Semantic structure makes templates easier to read, maintain, and extend because the markup communicates purpose instead of only presentation. This episode is useful for developers who want to move beyond “HTML that works” and toward HTML that communicates