Domain names are used to create more memorable names to use in place of numeric IP addresses. Domain name allow the use of unique alphanumerical addresses instead of numeric ones, Internet users more easily find and communicate with web sites and other server-based services by their Domain names.
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Domain names are restricted to the alphabetic letters “a” through “z” (case-insensitive), the digits “0″ through “9″, and the hyphen (-),  and domain name must start with a letter or a digit, and can not use hyphen in the beginning or end of a domain name.

Below are 3 examples illustrating the difference between a URL (Uniform Resource Locator) and a domain name:

1&1 Domains for .co.uk domains

Why would we need an SSL Certificate?

* If you plan to have an online store or e-commerce site that accepts online orders and credit cards.
* If you want to help your customers ensure they are visiting your actual website, avoiding phishing scams or other counterfeiting of your website.
* If you or your business desire to or are required to comply with privacy and security regulations.

* If you collect sensitive or personal information from your website visitors on your website through web forms.
* If you allow partners, members, or others to log in to view information securely from your website.

What are the benefits of a Positive SSL Certificate?

* Instant validation & Automatic Installation – Your SSL certificate will be automatically issued and installed on your server in a matter of minutes.
* Domain Validated Certificate Issued by Comodo – Comodo has a well earned reputation in the Web Security industry, with leading customer care and technical support.
* Site Seal – Ability to display a special icon on your page validating that your site is secure.
* Trusted by all popular Browsers – Positive SSL Certificates are supported by: Internet Explorer 5.01+, Firefox 0.1+, Mozilla 0.6+, AOL 5+, Opera 8+, Safari 1.2+.
* 128/256 bit encryption – Supports highest security 256 bit encryption, while remaining backwards-compatible with older browsers that only support 128 bit encryption.
* Unlimited Re-Issuance Policy – If you change servers or hosts, you can have your certificate re-issued to work in its new location.

Only $45.00 to $99.00 per year

An IP  (internet protocol) address is an unique number like 234.123.66.7 that identifies the unique web server/a computer on the internet, where your website can be saved. In shared web hosting plans, you share the same IP address with some other web sites on your server. By using a Dedicated IP address, you can enable your site for e-commerce and other advanced capabilities, and minimize the risk of being impacted by other sites on your shared server.

Important Reasons to get a Dedicated IP:

* By having a Dedicated IP you can enable SSL on your web site – SSL (Secure Socket Layer) Certificates are crucial if you have a business oriented website, especially if you want to accept secure online transactions like credit card payments or sending your  and your client,s personal information through your site.
* Dedicated IP will give ability to run more software on yours server – Certain programs require a dedicated IP address before they can be configure, setup and used. With a dedicated IP you will have more options on the type of programe you can run.
*It gives ability to open non-standard ports – Having a dedicated IP will allow your hosting provider to grant you access to additional ports you may need to run special services on that, by default they are blocked for shared IPs.
* So you will not be indirectly impacted by the actions of others – On a shared web hosting, if someone else sharing your same IP happens to get blocked by IP or censored, some countries or ISPs (Internet service providers) sometimes do. Their IP (and yours) could get blocked or blacklisted, which will cause problems for your web site or your search engine rankings.
* Your website may perform better in the search engines – Although it is difficult to prove, many people believe that web sites with a dedicated IP address  get ranked better in the search engine results than those utilizing shared IP addresses.
* You can directly acess your web site by typing your dedicated IP address – This is handy for situations where you want to access your site, when your domain name is inaccessible, such as during domain name propagation periods.

How much a Dedicated IP cost?

It will cost about  $2.5 per month. you can buy from almost any hosting provider like, BlueHost , HostMonster and Just Host

The companies that provide web hosting services are know as Web Hosts, They own  servers for use by their clients as well as providing continues Internet connectivity, typically in a data center.

Scope of Hosting Services

Hosting services varies widely by scope of its use..

• The most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) using FTP Client softwares or via HTTP through Web based file upload form. These files are usually delivered to the Web “as is” or with little processing. Many Internet service providers (ISPs) offer this service free to their subscribers.
• Personal website hosting: People can also obtain Web page hosting from other, alternative service providers.Personal web site hosting is typically free or cheap. Free hosting services are advertisement-sponsored, and high downtime.
• Business web site hosting: These hosting often has a higher expense. A complex site calls for a more comprehensive package that provides database support (mysql, mssql) and application development platforms (e.g. PHP, Java, Ruby on Rails, ColdFusion, and ASP.NET). These facilities allow the customers to write or install scripts for applications like forums and content management. For e-commerce, SSL is also highly recommended. The host may also provide an interface or control panel for managing the Web server and installing scripts as well as other services like e-mail.

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osting reliability and uptime. Hosting uptime refers to the percentage of time the host is accessible via the internet. Many providers state that they aim for a 99.9% uptime, but there may be server restarts and planned (or unplanned) maintenance in any hosting environment. A common claim from the popular hosting providers is ’99% or 99.9% server uptime’ but this often refers only to a server being powered on and doesn’t account for network downtime. Real downtime can potentially be larger than the percentage guaranteed by the provider. Many providers tie uptime and accessibility into their own service level agreement (SLA). SLAs sometimes include refunds or reduced costs if performance goals are not met.

Types of hosting A typical server “rack,” commonly seen in colocation centres. Internet hosting services can run Web servers; see Internet hosting services. Hosting services limited to the Web: Free web hosting service: It is free, (sometimes) advertisement-supported web hosting, and is often limited when compared to paid hosting. Shared web hosting service: one’s Web site is placed on the same server as many other sites, ranging from a few to hundreds or thousands. Typically, all domains may share a common pool of server resources, such as RAM and the CPU. The features available with this type of service can be quite extensive. A shared website may be hosted with a reseller. Reseller web hosting: allows clients to become web hosts themselves. Resellers could function, for individual domains, under any combination of these listed types of hosting, depending on who they are affiliated with as a provider. Resellers’ accounts may vary tremendously in size: they may have their own virtual dedicated server to a colocated server. Many resellers provide a nearly identical service to their provider’s shared hosting plan and provide the technical support themselves. Virtual Dedicated Server: dividing a server into virtual servers, where each user feels like they’re on their own dedicated server, but they’re actually sharing a server with many other users. The users may have root access to their own virtual space. This is also known as a virtual private server or VPS. Customers are sometimes responsible for patching and maintaining the server. Dedicated hosting service: the user gets his or her own Web server and gains full control over it (root access for Linux/administrator access for Windows); however, the user typically does not own the server. Another type of Dedicated hosting is Self-Managed or Unmanaged. This is usually the least expensive for Dedicated plans. The user has full administrative access to the box, which means the client is responsible for the security and maintenance of his own dedicated box. Managed hosting service: the user gets his or her own Web server but is not allowed full control over it (root access for Linux/administrator access for Windows); however, they are allowed to manage their data via FTP or other remote management tools. The user is disallowed full control so that the provider can guarantee quality of service by not allowing the user to modify the server or potentially create configuration problems. The user typically does not own the server. The server is leased to the client. Colocation web hosting service: similar to the dedicated web hosting service, but the user owns the colo server; the hosting company provides physical space that the server takes up and takes care of the server. This is the most powerful and expensive type of the web hosting service. In most cases, the colocation provider may provide little to no support directly for their client’s machine, providing only the electrical, Internet access, and storage facilities for the server. In most cases for colo, the client would have his own administrator visit the data center on site to do any hardware upgrades or changes. Clustered hosting: having multiple servers hosting the same content for better resource utilization. Clustered Servers are a perfect solution for high-availability dedicated hosting, or creating a scalable web hosting solution. * Grid hosting : this form of distributed hosting is when a server cluster acts like a grid and is composed of multiple nodes. Home server: usually a single machine placed in a private residence can be used to host one or more web sites from a usually consumer-grade broadband connection. These can be purpose-built machines or more commonly old PCs. Some ISPs actively attempt to block home servers by disallowing incoming requests to TCP port 80 of the user’s connection and by refusing to provide static IP addresses. A common way to attain a reliable DNS hostname is by creating an account with a dynamic DNS service. A dynamic DNS service will automatically change the IP address that a URL points to when the IP address changes.