What is HTTP - Definition
HTTP (Hypertext Transfer Protocol) - is a protocol that defines the rules of data transfer and communication between HTTP clients and web servers. The HTTP protocol defines a standardized way in which information is available, processed, and read by the web server and how an HTTP request is answered. In your browser, you can find it in the web address window, just before the www (world wide web). Developers use it to transfer data from a web server to a browser, so the users could view a web page.
How HTTP method helps web pages?
The purpose of a web page is to publish information, and HTTP makes this possible. Data sent over this protocol is not encrypted connection, and therefore sensitive data like passwords, logins, email addresses, or form content are vulnerable to interception, reading, and even modification.
How does it work?
The hypertext transfer protocol HTTP defines the exact communication format between clients and servers. This communication relies on the already mentioned HTTP requests and responses. What the HTTP protocol determines is the format of these messages.
Besides clients and servers, there are additional nodes in the communication. For example, servers may keep a copy of the HTTP response to speed up communication. They may also be network elements that allow the request to reach the server efficiently.
HTTP and Search Engine Operation.
Nowadays, it is best to implement HTTPS (Hypertext Transfer Protocol Secure) instead of HTTP as it increases the security of a website. Websites that have HTTP protocol are termed as potentially unsafe, which reduces users' trust in them. Moreover, having HTTPS protocol is one factor that positively affects the SEO of a website - that means better visibility in web browsers.