HTML/CSS Difference between html,shtml,htm

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The discussion focuses on the differences between various web technologies and the use of "www" in URLs. HTML, or Hypertext Markup Language, is the standard language for creating web pages, while SHTML is HTML that incorporates server-side includes. The abbreviation "htm" is simply a shorter form of HTML. The conversation also explains that the Domain Name System (DNS) translates domain names into IP addresses, allowing for flexibility in how web addresses are structured. It is not necessary to include "www" before a domain name if the domain is configured to point directly to a web service. The "www" prefix has become a conventional standard, often representing a subdirectory on the web server, but it is not a requirement for functionality. The DNS structure allows for various configurations, enabling web servers to be accessible through different subdomains without the need for "www." Understanding DNS principles, as outlined in RFC 1034, is essential for grasping these concepts.
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What are the differences between them ?
Another question, sometimes I see some internet addresses like http://FalseWebpage.com/
why isn't there www before FalseWebpage ?

Thank you,
 
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html = hyper text markup language
shtml - html that is using sever side includes
htm = abbrivation for html

DNS (domain name system) works by translating a URL/domain name to an IP address... There is no need to put a www in front if the domain point to the web service rather than let's say the SMTP service that this domain is hosting...

Your question can't be answered in a short post... Sorry to say this but you should RTFM on this one :-) I would suggest you read some RFC's for example RFC 1034 which describes DNS... If you have a grasp on DNS then you will understand why you do not need to put www in front

http://asg.web.cmu.edu/rfc/rfc1034.html
 
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www is actually just a folder on the web server, information inside needs the www, information outside doesn't. It's just become a standard overtime to include a www folder as a formality.
 
actually www is the bottom level in the DNS name (Domain Name) .com being the top... a folder would come after the .com for example

www.google.com/myfolder_file[/URL]

A web server could just as easily sit at

abcd.google.com
fghy.google.com
whatever.google.com
whatever.whatever.google.com

As long as you have a DNS zone per level specified on your name server you can go as far as you want...
 
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