WhatIsWiki
  • Blog
  • Topics
WhatIsWiki
  • Blog
  • Topics

Get new explainers in your inbox

Short, practical updates. No spam. Unsubscribe anytime.

WhatIsWiki© 2026 WhatIsWiki
  • Blog
  • Topics
  • Authors
  • About
  • Contact
  • Editorial
  • Privacy
  • Sitemap
  • RSS
  1. Home
  2. /Technology
  3. /HTTP Explained

Technology

HTTP Explained

Understanding the Basics of HTTP

In short

HTTP is a protocol used for transferring data over the internet. Learn how it works, its history, and why it matters.

By Shubh Singh

Published July 29, 2026

3 min read

1 reads

Beginner

A diagram showing the request-response cycle of HTTP
A diagram showing the request-response cycle of HTTP
  • web-development
  • http
  • networking
  • internet
  • protocol

Cite this page: https://www.whatiswiki.com/what-is-http-2

Introduction

HTTP, or Hypertext Transfer Protocol, is a set of rules that govern how data is transferred over the internet. It is the foundation of data communication on the internet and is used by web browsers and servers to communicate with each other.

HTTP is a request-response protocol, which means that a client, such as a web browser, sends a request to a server, and the server responds with the requested data. This data can be in the form of text, images, videos, or other types of files.

Table of contents8 sections
  1. 1.Introduction
  2. 2.Background and History of HTTP
  3. 3.How HTTP Works
  4. 4.Why HTTP Matters
  5. 5.Common Misconceptions About HTTP
  6. 6.Key takeaways
  7. 7.Frequently asked questions
  8. 8.Conclusion

Background and History of HTTP

HTTP was first developed in the late 1980s by Tim Berners-Lee, a British computer scientist. At the time, Berners-Lee was working at CERN, the European Organization for Nuclear Research, and was looking for a way to facilitate the sharing of information among researchers.

Berners-Lee developed HTTP as a way to link and share documents over the internet. He also developed the Hypertext Markup Language (HTML) and the Uniform Resource Locator (URL), which are still used today to create and access web pages.

How HTTP Works

HTTP works by using a request-response cycle. Here's how it works:

  • A client, such as a web browser, sends a request to a server for a specific resource, such as a web page.
  • The server receives the request and processes it.
  • The server sends a response back to the client, which includes the requested resource.
  • The client receives the response and displays the resource to the user.

HTTP uses a variety of methods to send requests and receive responses, including GET, POST, PUT, and DELETE. Each method has a specific purpose and is used in different situations.

Why HTTP Matters

HTTP matters because it is the foundation of the internet as we know it today. Without HTTP, it would not be possible to share information and resources over the internet.

HTTP is used by millions of people around the world every day to access web pages, download files, and communicate with each other. It is an essential part of the internet infrastructure and is used by a wide range of devices, including computers, smartphones, and tablets.

Common Misconceptions About HTTP

There are several common misconceptions about HTTP. One of the most common is that HTTP is a secure protocol. However, this is not the case. HTTP is a plain text protocol, which means that it is not encrypted and can be intercepted by third parties.

Another common misconception is that HTTP is the same as HTTPS. However, this is not the case. HTTPS is a secure version of HTTP that uses encryption to protect data as it is transmitted over the internet.

Key takeaways

  • ✓HTTP stands for Hypertext Transfer Protocol.
  • ✓The main difference between HTTP and HTTPS is that HTTPS is a secure version of HTTP that uses encryption to protect data as it is transmitt
  • ✓No, HTTP is not a secure protocol. It is a plain text protocol, which means that it is not encrypted and can be intercepted by third parties

Frequently asked questions

What does HTTP stand for?

HTTP stands for Hypertext Transfer Protocol.

What is the difference between HTTP and HTTPS?

The main difference between HTTP and HTTPS is that HTTPS is a secure version of HTTP that uses encryption to protect data as it is transmitted over the internet.

Is HTTP a secure protocol?

No, HTTP is not a secure protocol. It is a plain text protocol, which means that it is not encrypted and can be intercepted by third parties.

Conclusion

HTTP, or Hypertext Transfer Protocol, is the foundation of data communication on the internet.

References

  • HTTP/1.1 Specification
  • HTTP/2 Specification

Was this article helpful?

No login required. One response per visitor.

How this article was made

We write for readers first. Drafts may use research tools and generative AI for outlining and drafting, then are structured, fact-checked against editorial notes and primary sources when available, and published only if they pass our quality checks. Thin or duplicated explainers are not published.

See our editorial policy for authorship, corrections, and update standards.

Related articles

  1. →

    Jul 28, 2026 · Technology

    What Is HTTP?

    HTTP is a fundamental protocol for the internet, enabling communication between devices.

  2. ↓

    Jul 28, 2026 · Technology

    What Is DNS?

    The Domain Name System (DNS) is a critical component of the internet, enabling users to access websites using easy-to-remember domain names instead of difficult-to-remember IP addresses.

  3. ↓

    Jul 28, 2026 · Technology

    What Is HTTPS?

    HTTPS, or Hypertext Transfer Protocol Secure, is a protocol used for secure communication over the internet.

  4. ↓

    Jul 28, 2026 · Technology

    What Is Angular?

    Angular is a popular JavaScript framework for building complex web applications.

  5. ↓

    Jul 29, 2026 · Technology

    What Is GraphQL?

    GraphQL is a query language for APIs that allows for more flexible and efficient data retrieval.

Share

About the author

Shubh Singh profile photo

Shubh Singh

Shubh covers technology, business, and practical “what is…?” explainers for WhatIsWiki, with a focus on clear definitions, dates, and primary sources. He builds the site’s publishing systems and writes so readers leave with a usable answer—not more jargon.

388 articles

Category

Technology