What Is a URL?

A URL, or Uniform Resource Locator, is the address used to find a resource on the internet. When you enter a web address in a browser or click a link, the URL tells the browser where to go and how to retrieve the requested page, image, file, or other content.

Parts of a URL

Consider this example:

https://www.example.com:443/articles?topic=web#basics

A URL can contain several parts:

• Scheme: https indicates how the browser should connect to the resource. Common schemes include https and http.
• Host: www.example.com identifies the website or server.
• Port: 443 specifies a connection port. It is often omitted when the standard port for a scheme is being used.
• Path: /articles identifies a location or resource on the website.
• Query string: ?topic=web passes additional information, often used to filter or search for content.
• Fragment: #basics points to a particular section within a page.

Not every URL includes all of these components. A simple address, such as https://example.com, may be enough to open a website’s home page.

URL, URI, and Domain Name

The terms URL, URI, and domain name are related but have different meanings. A URL is a type of Uniform Resource Identifier (URI) that specifies both a resource and how to access it. A domain name, such as example.com, is only one part of many URLs.

Why URLs Matter

URLs make it possible to locate and share online resources. They help browsers retrieve web pages, support links between sites, and allow people to return to specific content. Clear, descriptive URLs can also make a website easier to navigate and understand.

Tips for Using URLs Safely

• Check the domain name before entering passwords or payment details.
• Look for https://, which indicates that the connection is encrypted. It does not, by itself, prove that a website is trustworthy.
• Be cautious of addresses with misspellings, unusual extra words, or misleading domain names.
• Use a trusted source when following shortened links, since the destination may not be visible at first.

In short, a URL is more than a web address: it is a structured set of information that helps a browser locate and access a resource online.

5 Essential Tips for Safe and Effective URL Management

1. Use HTTPS for secure connections.
2. Check the domain before clicking.
3. Keep URLs short and descriptive.
4. Avoid sharing URLs with private tokens.
5. Use lowercase letters for consistency.

Use HTTPS for secure connections.

Use HTTPS whenever it’s available to help protect information exchanged between your browser and a website. HTTPS encrypts the connection, making it harder for others to intercept or read data in transit. However, the padlock icon or “https://” in a web address doesn’t guarantee that a site is legitimate, so check the website’s address and trustworthiness before sharing sensitive information.

Check the domain before clicking.

Before clicking a link, take a moment to check the domain name—the part of the URL that identifies the website. Look for misspellings, extra words, or subtle changes that could make a fake address look like a familiar one. If the link seems suspicious or the destination is unclear, don’t click it; instead, visit the site by typing its known address into your browser.

Keep URLs short and descriptive.

Keep URLs short and descriptive so visitors can quickly understand what a page is about. Use clear, relevant words, separate words with hyphens, and leave out unnecessary numbers or filler. A readable URL is easier to remember and share, and can help people navigate your site with confidence.

Avoid sharing URLs with private tokens.

Avoid sharing URLs that contain private tokens, such as password-reset links, login credentials, or invitation codes. Anyone who gets the link may be able to use the token to access an account, view private information, or take an action as you. Before posting or forwarding a URL, check for long strings of letters and numbers after symbols like “?” or “#.” If a private link has already been shared, revoke or replace it when possible.

Use lowercase letters for consistency.

Use lowercase letters in URLs for consistency and easier maintenance. Although many websites treat uppercase and lowercase letters in the domain name as equivalent, the path portion of a URL may be case-sensitive, so `/About` and `/about` could lead to different pages. Choosing lowercase letters helps prevent broken links, reduces confusion when sharing addresses, and makes URLs easier to read and type.