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What is index.html?

Last Updated : 23 Jul, 2025

In web development, index.html is the standard filename for a website's homepage. When users visit a website without specifying a particular page, the server automatically delivers the index.html file, ensuring a consistent and organized entry point for visitors.

  • Default Homepage: Acts as the entry point for website visitors.
  • Server Recognition: Web servers prioritize index.html when no specific page is requested.
  • Organizational Standard: Maintains consistency across web projects.

Here's a basic example of an index file in HTML:

Understanding the Role of index.html in Web Development

The index.html file serves as the default landing page for websites, playing a crucial role in site architecture and user experience.

  • Site Architecture: Placing an index.html file in each directory ensures that users are presented with a default page when accessing a directory, enhancing navigation and usability.
  • Security Feature: Having an index.html file prevents the web server from displaying a list of files in a directory, thereby protecting sensitive information from unauthorized access.
  • Alternative File Types: Some websites utilize different default file types, such as index.php or index.asp, depending on the technologies and server configurations in use.

Steps to Create an index.html File

Before starting, ensure Visual Studio Code (VS Code) is installed on your Windows system. If not, follow this guide to install Visual Studio Code on Windows.

Step 1. Choose a Text Editor

Select a code editor like Visual Studio Code, Sublime Text, or Notepad. Here, we’ll use VS Code.

👁 Choose a Text Editor

Step 2. Create a New File

Open your selected editor and create a new file to start your project.

👁 2. Create a New File

Step 3. Write the HTML Structure

Begin with the <!DOCTYPE html> declaration, followed by <html>, <head>, and <body> tags to set up the page structure.

👁 Write the HTML Structure

Step 4. Save the File

Save the document with the name index.html and place it in your project’s root directory for easy access.

👁 Save the File

Step 5. Open the File in a Web Browser

Locate the saved index.html file and open it in any web browser to view the content.

👁 Open the File in a Web Browser

Alternative Default Page Names

Web servers often look for specific default page names when a user accesses a directory without specifying a file. While index.html is the most common, other default filenames include:

  • index.htm: A variation of index.html with a different file extension.
  • default.htm or default.html: Commonly used in Microsoft-based hosting environments.
  • home.htm or home.html: Sometimes used to denote the homepage of a website.
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