What Is a URL? Definition, Examples & How to Find Yours
You type it into your browser bar dozens of times a day without a second thought. That little line of text — the URL — is actually a precisely engineered address that tells your computer exactly where to find the information you’re looking for.
First URL created: 1990 by Tim Berners-Lee at CERN · Websites worldwide (2025): Over 1.9 billion · Google index size: Over 130 trillion unique URLs · URL full form: Uniform Resource Locator
Quick snapshot
- Uniform Resource Locator — the web address for any resource (Tim Berners-Lee at CERN)
- Invented in 1990 by Tim Berners-Lee at CERN
- Scheme (http/https), host (domain), path, query, fragment (web.dev (Google developer resource))
- Defined by web.dev (Google developer resource)
- A website is the content; a URL is its location (GoDaddy (domain registrar guide))
- One website has many URLs — each page, image, PDF gets its own address, per GoDaddy (domain registrar guide)
- Look in the browser address bar at the top of the screen, as explained by Google Search Help (official support)
- Tap to reveal the full URL on mobile (Google Search Help (official support))
Six key facts about URLs, one snapshot: every URL has a defined structure, a known inventor, and practical limits worth knowing.
| Fact | Value |
|---|---|
| Full form | Uniform Resource Locator |
| Inventor | Tim Berners-Lee |
| Year invented | 1990 |
| First URL | http://info.cern.ch |
| Max length (Internet Explorer) | 2,083 characters |
| Most common scheme | https:// |
The implication: these facts anchor what a URL is and how it behaves across browsers.
What is a URL in computer?
What does URL stand for?
- Uniform Resource Locator — the full form as defined by Wikipedia (community encyclopedia)
- A URL is a web address that specifies the exact location of a resource on the internet
- It was invented by Tim Berners-Lee in 1990 while he was working at CERN
Basic parts of a URL
- Scheme (e.g.,
https://) — indicates the protocol the browser uses to request the resource - Host — the domain name (e.g.,
www.example.com) - Path — points to a specific page or file on the server
- Query — optional parameters after a
?(e.g.,?q=search) - Fragment — a subsection identifier after a
#
URL vs URI
- A URI (Uniform Resource Identifier) is a general identifier; a URL is a specific type of URI that provides the location, distinguishes Hostwinds (web hosting explainer)
- All URLs are URIs, but not all URIs are URLs
The implication: knowing the parts of a URL helps you troubleshoot broken links, understand security (https vs http), and even craft better web addresses for your own content.
Key distinction: The URL and the webpage are not the same thing. The URL is the address; the page is the content delivered after the browser resolves it.
What is an example of a URL?
Common URL patterns
- Basic web page:
https://www.example.com/page - With query parameter:
https://www.example.com/search?q=url - With fragment:
https://www.example.com/page#section2 - Image URL:
https://www.example.com/images/photo.jpg
Examples of different top-level domains
- .com —
https://www.google.com - .org —
https://www.wikipedia.org - .gov —
https://www.nasa.gov - .au — In
https://example.org.au, “au” is the country code top-level domain, “org” the second-level, and “example” the third-level
What this means: URLs aren’t just for websites — they point to images, PDFs, videos, and even specific sections within a page. The pattern is always the same, the content type just changes.
How do I find my URL?
Find URL on desktop browser
- Open your browser (Chrome, Firefox, Safari, Edge).
- Look at the address bar at the top of the window — the URL is displayed there.
- Click inside the address bar to select the full URL, then copy it using Ctrl+C (or Cmd+C).
As Google Search Help (official support) explains, clicking the address bar and selecting the full URL is the quickest way to grab it.
Find URL on mobile browser
- Open your mobile browser (Chrome, Safari).
- The URL appears in the address bar, often in a shortened or simplified format.
- Tap the address bar to reveal the full URL.
- Long-press and select “Copy” to save it to your clipboard.
Find URL in an app (LinkedIn example)
- Go to your profile in the LinkedIn app.
- Tap “Edit public profile & URL” under the “Public profile & URL” section, as outlined by LinkedIn Help (official support).
- Your public profile URL will be displayed and can be copied.
The catch: finding your URL on mobile can be trickier because browsers often hide parts of the address to save space. Tapping the bar always reveals the full thing.
Quick trick for mobile: On most smartphones, tapping the address bar once reveals the full URL — no need to long-press or scroll sideways. This works in Chrome, Safari, and Firefox.
What is the difference between a website and a URL?
One way to see the difference: a website is like a house, and a URL is the street address. The address tells you where the house is, but the house itself is the content inside.
A clearer breakdown of how they differ:
| Website | URL | Analogy |
|---|---|---|
| A collection of web pages (content) | The address of a specific resource | The house itself |
| One website can have many pages | Each page gets its own unique URL | Every room has a different address |
| Includes images, videos, text | Points to any type of resource — HTML, PDF, JPG | Furniture inside the house |
| Exists on a server | Is a string that identifies the location | The house sits on a street |
As GoDaddy (domain registrar guide) notes, a URL is distinct from a hyperlink — the link is the clickable element, while the URL is the underlying address.
Why this matters: when you bookmark a page, you’re saving its URL. The website itself stays on the server, but the URL is your key to returning to that exact spot.
What happens when you enter a URL?
Step 1: The browser parses the URL
- The browser reads the scheme (
https://) and host (www.example.com) from the URL you typed. - If the scheme is missing, the browser guesses — usually adding
https://.
Step 2: DNS lookup
- The browser asks the Domain Name System (DNS) to translate the domain name into a numeric IP address.
- DNS servers across the internet cooperate to find the correct IP for the domain.
Step 3: HTTP/HTTPS request
- Once the browser has the IP address, it sends an HTTP request (or HTTPS for secure connections) to that server.
- The request includes the path and any query parameters from the URL.
Step 4: Server response and page rendering
- The server responds with the requested resource — typically an HTML document, plus CSS and JavaScript.
- The browser then renders the page on your screen as a visual webpage.
The trade-off: every step adds a tiny delay. That’s why fast DNS servers and content delivery networks (CDNs) exist — they shorten the distance between the URL you type and the server that holds the content.
Bottom line: When you enter a URL, your browser acts as a messenger — it translates the address to a server location, requests the page, and renders what comes back. Every click depends on this chain resolving correctly.
Security alert: Always check that a URL starts with https:// before entering sensitive data. The “s” means encryption is active — without it, your information travels in plain text.
Confirmed facts
- URL stands for Uniform Resource Locator (Wikipedia (community encyclopedia))
- First URL was
http://info.cern.ch(created at CERN in 1990) - URLs are defined by the WHATWG URL Standard
- Tim Berners-Lee invented the URL
What’s unclear
- Exact number of URLs in the world is unknown
- Optimal URL length for SEO is debated
- Whether query parameters affect page ranking varies by search engine
- Maximum URL length across all browsers has no single agreed limit
Quotes on URLs
“The URL — the Uniform Resource Locator — is the fundamental building block of the World Wide Web. It was first conceived at CERN in 1990 as a way to uniquely identify any document on the emerging web.”
“A URL is the address of a specific resource on the internet. It includes a scheme, authority, path, query, and fragment — each component telling the browser exactly how to reach and retrieve the resource.”
Mozilla Developer Network (developer documentation)
“For everyday users, the URL is simply the text you type into the address bar to visit a website. Understanding the parts can help you navigate more confidently and avoid phishing scams.”
Oak Park Public Library (community education resource)
For anyone who’s ever wondered what that long string of characters in the address bar actually means, the choice is clear: learn the basics of URLs and you’ll browse with more confidence — or keep guessing and risk landing on the wrong page.
lenovo.com, blog.hubspot.com, concretecms.com, wpengine.com, youtube.com
For a more detailed breakdown of the components, you can refer to this definition of a URL that explains each part in depth.
Frequently asked questions
Why do some URLs start with http:// and others with https://?
HTTP (Hypertext Transfer Protocol) transfers data in plain text, while HTTPS adds encryption via SSL/TLS. HTTPS is now the standard for secure browsing. Most browsers mark HTTP-only sites as “Not secure”.
Can a URL have spaces?
No, spaces are not allowed in URLs. Browsers automatically convert spaces into %20 (URL encoding) or replace them with plus signs in query parameters.
What is the difference between a URL and an IP address?
An IP address is a numeric label (e.g., 192.168.1.1) assigned to a device on a network. A URL is a human‑readable address that includes a domain name, which the DNS converts to an IP address.
How long can a URL be?
There is no official maximum, but Internet Explorer caps URLs at 2,083 characters. Most modern browsers handle up to 2,000–8,000 characters. Keeping URLs under 2,000 is recommended for compatibility.
What happens if I enter a wrong URL?
Your browser will attempt a DNS lookup. If the domain doesn’t exist, you’ll see a “server not found” or “DNS_PROBE_FINISHED_NXDOMAIN” error. Sometimes you land on a parked domain or error page.
Is a URL the same as a domain name?
No. A domain name (e.g., example.com) is part of a URL. The URL includes the protocol, path, and optionally query/fragment — the domain is just the host portion.
How do I create a short URL?
Use a URL shortening service like Bitly or TinyURL. Paste your long URL, and the service generates a short alias that redirects to the original address.
What is a URL slug?
The slug is the part of the URL that comes after the domain and identifies a specific page in a readable way. For example, in example.com/blog/what-is-url, the slug is what-is-url.
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