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# Understanding URL Structure: A Complete Guide
- URL: https://www.blog.nestict.com/understanding-url-structure-a-complete-guide/
- Published: 2025-10-02T06:55:48.000Z
- Updated: 2025-11-12T10:21:24.000Z
- Author: Nestict Infotech CSR
- Tags: Technology, Featured

When browsing the internet, every website you visit is accessed through a **URL (Uniform Resource Locator)**. But have you ever wondered what each part of a URL means? Let’s break it down with the help of an illustration and real-world examples.

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## 📌 What is a URL?

A URL is simply the address of a resource on the internet. It tells your browser where to find a website, a file, or any online resource.

Here’s a breakdown of a sample URL:

https://www.example.com:80/file.html?key1=value1&key2=value2#00s0350qt

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## 🔎 Components of a URL

### 1\. **Protocol** (`https://`)

This defines how the browser should communicate with the server.

- **http://** → HyperText Transfer Protocol
- **https://** → Secure version of HTTP (encrypted)

➡️ Example: `https://www.google.com`

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### 2\. **Subdomain** (`www`)

Subdomains help organize and separate parts of a website.

- `www` is the most common.
- Other examples: `blog.example.com`, `shop.example.com`

➡️ Example: `https://maps.google.com` (subdomain: `maps`)

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### 3\. **Domain Name** (`example.com`)

This is the human-readable address of a website. It usually consists of:

- **Second-level domain**: `example`
- **Top-level domain (TLD)**: `.com`, `.org`, `.ke`

➡️ Example: `youtube.com`

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### 4\. **Port** (`:80`)

Defines the gateway for communication.

- Default for **HTTP** → `80`
- Default for **HTTPS** → `443`

Most browsers hide default ports, but custom ones are visible.

➡️ Example: `https://localhost:8080` (port `8080` is specified)

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### 5\. **Path** (`/file.html`)

Specifies the location of a file or resource on the server.

➡️ Example: `https://www.nytimes.com/section/technology` (Path: `/section/technology`)

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### 6\. **Query Parameters** (`?key1=value1&key2=value2`)

Used to pass data to the server. Often seen in search queries and dynamic pages.

- Format: `?key=value`
- Multiple values separated by `&`

➡️ Example: `https://www.google.com/search?q=nestict+infotech` (Query parameter: `q=nestict+infotech`)

➡️ Example: `https://www.amazon.com/s?k=laptops&ref=nb_sb_noss` (Multiple parameters: `k=laptops` and `ref=nb_sb_noss`)

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### 7\. **Fragment** (`#00s0350qt`)

This points to a specific section of a page (also called an anchor).

➡️ Example: `https://en.wikipedia.org/wiki/URL#Syntax` (Fragment: `#Syntax` takes you directly to the "Syntax" section)

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