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Every website you visit has a web address but not everyone knows what that really means. That address is called a URL and it tells browsers and servers where to find and display pages, images or files online. When you understand what a URL is and how it works, you can get around the web with more confidence and even organize your own site better.
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TL;DR: What is a URL?
A URL is the full address used to find anything online from webpages to files. It tells your browser exactly where to go and how to get there. URLs combine parts like the protocol, domain and path into one structured link. Creating clear, well-structured URLs makes your site easier to navigate, share and understand by search engines.
You’ll learn:
What a URL is and how it’s different from a domain name
Where to find and how to use a URL
The main parts of a URL and what they do
The difference between absolute and relative URLs
How URLs work
Why URLs matter for navigation, SEO and usability
How to write a clear and user-friendly URL
Common URL limits, encoding and other technical stuff
What is a URL definition?
A URL, which stands for Universal Resource Locator, is the unique web address of a website, image, document or any other resource on the web. While URLs are specific types of Uniform Resource Identifiers (URI) most commonly used to reference webpages, they're also use in email communications, file transferring processes and database accessing.
The URL of any webpage can be found in the address bar at the top of the screen of most web browsers (such as Chrome, Safari or Firefox). If you take a look at the address bar of this webpage, for example, you’ll see that its URL is: https://www.wix.com/blog/what-is-a-url.
To see the full-form URL of an image or document within a broader webpage, right-click to copy the element’s address and paste it into a new tab or page.
What is a URL address
A URL address is the web location of a page, file or resource. It focuses on the “address” part of a URL—the exact place on the web where something lives. You type it into a browser or share it with others to reach a specific page or file.
You can also copy or save URL addresses for later use, which helps when sending links to others or bookmarking important pages.
URL addresses vs domain names
It’s important to keep in mind that while the terms are often used interchangeably, domain names are not the same as URL addresses. While purchasing a domain name allows webpage owners to customize their online address, it's only one component of a URL.
Learn more:
What is a URL link
A URL link is a clickable version of a URL that takes you directly to a page, file or resource online. Unlike a plain URL, which you might copy and paste, a URL link is embedded in text, buttons, images or other elements to make navigation effortless.
How URL links work
They can be clicked in emails, websites or apps to open the destination automatically
Anchor text or buttons often hide the full URL for cleaner presentation
Links can include tracking codes to measure clicks and traffic sources
How to use a URL
Using a URL is easy once you get the hang of it. You can type it into your browser to visit a page, click it in an email or on a site or copy it to share. On your own site, you can use URLs to connect different pages, guide visitors to specific content or organize your site structure. Little things like bookmarking a URL can save time and make browsing the web a lot easier.
Ways to use a URL
Open a page: Type the URL into your browser’s address bar
Follow a link: Click URLs in websites, emails or apps
Share or save: Copy URLs to send or bookmark for later
Link pages on your site: Use URLs to guide visitors between your pages
Different parts of a URL
Every URL is made up of several parts, and each one tells browsers and servers where to go. Understanding the parts of a URL helps you read, create and manage them more effectively when you’re visiting a page, sharing a link or organizing your own website.
Protocol
Otherwise known as “scheme”, the first part of a URL indicates which protocol must be used by the browser to access the resources. The most common protocols include HTTP (Hypertext Transfer Protocol) and HTTPS (Hypertext Transfer Protocol Secure) for web elements and FTP (File Transfer Protocol) to download files.
Subdomain
Sitting at the beginning of the domain, subdomains help navigate and organize the different sections of large sites. They’re most commonly used in websites with a significant amount of content and pages, such as online stores, support platforms and blogs.
Domain
A domain is the main part of a web address that identifies a website. It’s what you type into your browser after https:// and before any specific page path. For example, in https://www.wix.com/blog, wix.com is the domain.
Your domain is made up of two parts:
Second-level domain (SLD): This is the unique name you choose for your site, like wix in wix.com.
Top-level domain (TLD): This is the extension that follows your site's name, like .com, .org or .net.
Together, the SLD and TLD (domain extensions) tell browsers where to find your website on the internet.
Learn more: How to transfer a domain name
Top-level domain
Top-level domains (TLD) are one of the highest levels in the web’s hierarchical Domain Name System (DNS). The most popular TLD is .com, originally intended for commercial businesses, but now used by all kinds of sites. Other widely used TLDs include .org for organizations, .net for network services, and .info for informational sites. Country-specific TLDs, like .co.uk, .de, or .mx, indicate where a website is based or targeted.
Choosing the right TLD can affect trust, recognition and even search visibility. For example, a local business targeting customers in Netherlands might use a .nl domain, while a tech startup might pick .tech to signal its industry. Newer TLDs like .store, .blog or .design give more creative options.
Learn more:
Path
The final part of a URL is the path, sitting after a slash and used to designate specific pages. This section is often broken down into smaller elements such as subdirectory, file name and parameters. For example, ‘/encyclopedia/definition/__url’ is the path for this webpage’s URL.
Parameter
Parameters in a URL provide additional information to the server about what is being requested, often used to filter or sort data, track sessions or perform other specific functions. They are appended to the end of a URL after a question mark and are usually structured as key-value pairs, separated by an ampersand if there’s more than one.
Anchor
Anchors, also known as fragments, are used in URLs to direct the user to a specific part of a single page. They are introduced by the hash symbol (#) and follow the main part of the URL. Anchors are particularly helpful for navigating long webpages or documents by jumping directly to a relevant section, providing users a more streamlined experience.
How does a URL work?
A URL works like a map that tells your browser exactly where to find a page, file or resource on the internet. When you enter a URL or click a link, the browser reads the address, connects to the server that hosts the content and displays it on your screen.
Every part of a URL plays a role in this process. The protocol tells the browser how to communicate with the server, the domain identifies the website and the path points to the specific page or file. Optional elements like parameters or anchors give extra instructions, such as filtering content or jumping to a section of a page.
Why are URLs important?
URLs (Uniform Resource Locators) are crucial for navigating the internet. They provide a standardized way to access resources, such as web pages, images and videos.
URLs specify the exact location of a resource, enabling browsers to retrieve and display content accurately. They are essential for linking between web pages, facilitating seamless user experiences. Additionally, URLs play a key role in SEO, helping search engines index and rank content. They also enhance usability by allowing users to share and bookmark specific pages easily. Overall, URLs are fundamental to the structure and functionality of the web, ensuring efficient information retrieval and sharing.
What is the difference between an absolute URL and a relative URL?
Choosing between absolute and relative URLs for your website comes down to understanding their purpose and strengths.
Absolute URL
An absolute URL includes the full web address, ensuring a complete path to a specific page. For instance, a blog post built on Wix might use an absolute URL like https://www.wix.com/blog/what-is-a-url. This is the complete address, starting with the protocol (https://), followed by the domain (www.wix.com), and the path to the page (/blog/what-is-a-url).
Absolute URLs are great for SEO and external links because they give clear direct paths that search engines and users can easily follow. However, they can be harder to manage for internal links, especially during domain changes or updates.
Relative URL
A relative URL omits the protocol and domain, focusing only on the path to the resource within the website. For example, instead of linking to the absolute URL above you could use /what-is-a-url when internally connecting pages on your Wix website.
Relative URLs are shorter and often easier to manage because they adapt automatically if you update your domain. Just be cautious—using them for external links can create broken links if accessed outside your site.
Common URL terms explained
URLs do more than point to a webpage. Each term describes how a URL can be used, shared or managed.
Vanity URL: A short branded URL you can customize. It’s designed to be memorable and easy to type, often used for marketing campaigns, social media posts or printed materials to make links look clean and professional.
Tiny URL / URL shortener: A shortened version of a long URL, usually created automatically by a service. It’s mainly for convenience, making long or complex links easier to share in emails, social posts or messages. Unlike vanity URLs, branding is optional.
Callback URL / Webhook URL: A URL used by apps or services to send or receive data automatically. They’re essential for integrations, notifications and workflows such as sending payment confirmations or updating connected platforms in real time.
Custom URL: A URL you control and personalize. This could be a profile page, product page or campaign link. The focus is on clarity and branding, ensuring visitors understand the page content at a glance.
Redirect URL / URL redirect: A URL that automatically sends visitors to a different address. This is useful when moving pages, consolidating content or pointing multiple URLs to the same page without breaking links.
Slug URL / Target URL: The readable portion at the end of a URL that identifies a specific page or post. Slugs make URLs understandable, shareable and SEO-friendly by clearly describing the content.
Tracking URL / Source URL: A URL that includes extra information to track where visitors come from, such as business email campaigns, social media or ads. These URLs help measure performance and analyze traffic sources.
Valid URL: A properly formatted URL that follows web standards and works reliably in browsers. Ensuring URLs are valid prevents broken links and errors when sharing or linking pages.
The importance of a semantic URL
Also known as friendly URLs, semantic URLs are composed of logical parts that allow visitors to easily understand which webpage they’re in and where it falls within the site hierarchy. Just like when choosing a domain name, there are a few crucial areas that can be severely impacted by whether or not a site uses semantic URLs:
Usability
Users should be able to navigate a site solely through the address bar, or at the very least, be capable of easily retracing their steps from within it. Complex URLs might deter visitors from extending their stay on the page in favor of alternatives with a better user experience.
SEO
Clear URLs allow search engine crawlers to have a better understanding of the type of page they’re indexing and how it relates to others on the site. As a result, they’re most likely to rank and build stronger site authority. Think of a semantic URL as a way to properly organize your pages in a labeled drawer, rather than throwing all of them into a closet and hoping for the best.
Accessibility
Visitors using screen readers must be able to understand where links are leading to and what kind of information they contain without having to decipher a URL packed with complex strings.
What is a URL? FAQ
What's the maximum length a URL can be?
While your URL length depends on the browser and server you're using, it's best to keep it under 2,000 characters. Modern browsers like Chrome and Firefox can handle longer URLs, but going too long can cause issues with server processing, SEO, caching and mobile devices. For the best results and compatibility, shorter and simpler URLs are always a good idea.
What happens when a URL contains special characters from different languages, like Chinese or Arabic?
When a URL includes characters from languages like Chinese or Arabic, the browser converts them into a format that can be safely transmitted over the internet. This process is called URL encoding, where non-standard characters are transformed into a percent-encoded format.
For example, characters are first encoded in UTF-8, then turned into a series of codes like %E4%BD%A0. Modern browsers handle this automatically, so users can still see and use readable text while the encoded version is used behind the scenes. This allows URLs to support multiple languages while staying compatible with web standards.
Why do some URLs look long and messy?
Long URLs have extra info like parameters, tracking codes or session IDs. These details help websites filter content, track where you came from or manage your visit. Even though they look messy, each part has a specific job to do for the site to work correctly or for analytics.
Can a URL include symbols like @ or numbers instead of a domain name?
Yes. URLs can use an IP address instead of a domain name. Certain symbols like @ are allowed for specific functions such as login details or redirects within a URL. But for the most part, URLs use letters, numbers and hyphens to keep things clear and working right.
Do I always need to type “www” in a URL?
Not anymore. The www is a subdomain and most websites work with or without it. Modern browsers usually handle this for you, so typing just the domain name will get you where you want to go.
How to figure out if your domain name is available?
Another business may have already taken your desired domain name, so the first step is to do a domain name search. If your first choice isn’t available, pop it into a domain name generator, which can help you find a similar domain name. You can also find the domain owner and registration details for a website with a Whois domain lookup.
