Overview
This lecture explains what a Uniform Resource Locator (URL) is, describes its main components, and highlights its use in accessing web pages.
What is a URL?
- A URL (Uniform Resource Locator) is a unique text-based address used to access a specific web page.
- URLs are typed into web browsers like Google Chrome, Microsoft Edge, or Apple Safari to visit websites.
Components of a URL
- The URL starts with a protocol, such as HTTPS, which is a secure way to send web traffic.
- The next part is the host, followed by the domain name (called the website domain).
- Combining the host and domain name forms the Fully Qualified Domain Name (FQDN).
- Additional parts can specify locations within the website, such as subpages or folders.
- The final part is the specific resource—this could be a web page or a downloadable file.
Using URLs
- All of these parts together make up the complete URL, which directs users to a particular resource on the internet.
Key Terms & Definitions
- URL (Uniform Resource Locator) — a unique text-based address for a web page.
- Protocol — the method of data transmission (e.g., HTTPS).
- Host — the server part of the address.
- Domain Name — the website's name (e.g., craiganddave.org).
- Fully Qualified Domain Name (FQDN) — combination of host and domain name.
- Resource — the specific web page or file being accessed.
Action Items / Next Steps
- Pause and write notes on the structure and components of a URL.
- Watch the next video for more details on protocols.