Who is domain, Url, web page, Website, Www, Web hosting
Suppose you open your computer's browser,type example.com in the top bar and hit enter. Some new contents appear on your computerscreen. When you click on the image, previous contentsdisappear, and new contents appear and so on. The new contents that you see after everysingle click are the visual representation of a document your browser has received froma server in response to your request to access example.com.
example.com is called domain name and thedocument received is called a web page and is written in HTML language which browsercan understand. The browser interprets the HTML document andprovides you with user-friendly contents on the screen. Note that all web pages are accessed and transportedwith the help of HyperText Transfer Protocol or Hypertext Transfer Protocol Secure, i.e. HTTP or HTTPS. Now, each web page has a unique address calledUniform Resource Locator or URL
containing: HyperText Transfer Protocol or HypertextTransfer Protocol Secure Fully qualified Domain name Directory, and either Web page or nothing Here,- 'www' is the machine name or host name and stands for the World Wide Web. It is mostly optional these days. - '55techterms' is the registered domain. - .com is the top-level domain55techterms.com is the domain name, and we need to buy it from registrars likeGoDaddy, Hostgator, etc. Now, in the first URL, server is sending test.htmlwebpage to the browser, but if a URL does not end with extensions like .html, .php,etc., the server loads a default file - index.html, index.php, etc. in that directory. For example, 55techterms.com/index.php and55techterms.com open the same web page. These URLs are linked with specific text orimages on the webpage to form hyperlinks. So, when you click on the image, hyperlinkredirects you to the link associated with it which results a new web page having newcontents. All publically accessible hyperlinked webpages collectively form an information space called World Wide Web or simply Web.
A collection of hyperlinked web pages sharinga common domain name or FQDN is called a website. So, a group of HTML files forms a website. To have our website visible on the Internet,all files (HTML, CSS, text, images, videos, sounds) should be stored on special computerscalled servers. For that, we need to buy some disk space onthe server from companies to which those servers belong. These companies are called Web Hosts forexample, GoDaddy, Bluehost, Hostgator, etc. Once the website files are uploaded successfullyon the server, it is the responsibility of web hosts to deliver the required files ofyour website as soon as the server receives a request from a web browser.
This service, provided by Web hosts, is calledWeb Hosting. So, as a whole, on the internet, web hostsprovide us with servers to store hyperlinked web pages publically accessible with URLsforming the World Wide Web. Web pages with common domain name collectivelyform a website which goes live on the internet with the help of web hosting services.