Web Technologies

Client Server Scripting

HTML

CSS

Javascript

Search Engine Indexing

HTML stands for Hyper Text Markup language

When building a website HTML is used as the standard language but also is assisted by technologies such as CSS and Javascript

The Html basic tags consist of <html> <body> <h1 to h6> <head>

Standard markup language for documents designed to be displayed in a web display

CSS stands for cascading style sheets

CSS describes how HTML elements should be displayed

Can be stored internally in the HTML file

Can Located in HTML using the <style> tags

Can be stored externally in a separate file

Javascript is used to program the behaviour of web pages

Alongside HTML and CSS, Javascript is one of the key technologies of the World Wide Web

Javascript enables interactive pages

Server scripting is a program written in code interpreted by a web server

Client side scripting is executed by a browser

Server only understands languages like PHP and python

Request by client to server is sent in HTML

Server interacts with DBMS which only understands SQL

Response by server sent back to the client in HTML

Indexing is the process by which search engines organise information before a search to enable super-fast responses to queries

Search engines use an inverted index to find webpages