Although there isn't quite enough information in the question to be certain what you're looking for:
The general answer is that you need to configure Port Address Translation on your Router/Firewall.
Your router's WAN IP address is a valid internet address, however your computer is most likely using a privately scoped IP address (either 192.168.x.x or 10.x.x.x) that is not a valid Internet address.
You need to configure your Router or Firewall in such a way that when it receives traffic on its WAN IP address on port 80, it will forward that traffic to your internal server at the 192.168.x.x or 10.x.x.x. adddress. Most common home routers support this, with a minimum of configuration.
A website can be hosted by anyone with a computer or server. And also there are expert who are hosting the websites.....
A web page or website are hosted on Web Servers
DNS translates a domain name into an access IP. Every website is hosted on an IP, the DNS servers tell your computer where a particular domain is hosted.
Any website that features video on it. This video can be hosted along with the website or streamed through the website while being hosted on a CDN.
The website, lastminute, is hosted by Sabre Holdings corporation. It is hosted on a shared server, with about 10 other domains being hosted on the same server.
Facebook is a social networking website, as it is hosted on the website and can be navigated to by anyone.
The cheapest way to get your website hosted on a server is messaging a server and asking them if they will host it. There are many different ways to go about this.
The website Stockquest, which provided a free stock market simulator tool, was hosted by the University of Georgia and has been out of service since 2010.
Google. Videos of this type are hosted on pornography websites and aren't available on YouTube. Please ensure what you are viewing will not harm your computer and the website is safe.
This is a home made website hosted by Cafepress, a commercial site.
There are many different CMS Hosted website builders. A few are Drupal, Wordpress, Joomla, Virb and squarespace. Which is the best, all depends on what you are looking to include in your CMS website builder.
Steve Jobs Jr. the third.