Second-level (or lower-level, depending on the established parent hierarchy) domain names are often created based on the name of a company (e.g., bbc.co.uk), product or service (e.g. hotmail.com). Below these levels, the next domain name component has been used to designate a particular host server. Therefore, ftp.example.com might be an FTP server, www.example.com would be a World Wide Web server, and mail.example.com could be an email server, each intended to perform only the implied function. Modern technology allows multiple physical servers with either different (cf. load balancing) or even identical addresses (cf. anycast) to serve a single hostname or domain name, or multiple domain names to be served by a single computer. The latter is very popular in Web hosting service centers, where service providers host the websites of many organizations on just a few servers.
20. ArvixeArvixe is one of the fastest-growing hosting providers in the world established in San Luis Obsipo, CA. It offers professional Linux and ASP .NET hosting (personal, business, reseller, VPS, and dedicated servers) with unrestricted disk space and data transfer, and an unlimited number of email accounts. You get to register a domain or build a website for free, and manage online performance from one of the easiest control panels on this market. The company prides itself with 99.9% uptime, and a 24/7 customer support team, automated setup, and a 45-day money-back guarantee. You can also acquire unique services, such as Forum, vBulletin and phpBB hosting, Blog & CMS hosting (WordPress, ExpressionEngine, and Movable Type Hosting), and Social network and Community Website hosting.
Shared hosting is web hosting in which the provider houses multiple sites on a single server. For example, Site A shares the same server with Site B, Site C, Site D, and Site E. The upside is that the multiple sites share the server cost, so shared web hosting is generally very inexpensive. In fact, you can find an option for less than $10 per month.
The availability of a website is measured by the percentage of a year in which the website is publicly accessible and reachable via the Internet. This is different from measuring the uptime of a system. Uptime refers to the system itself being online. Uptime does not take into account being able to reach it as in the event of a network outage.[citation needed] A hosting provider's Service Level Agreement (SLA) may include a certain amount of scheduled downtime per year in order to perform maintenance on the systems. This scheduled downtime is often excluded from the SLA timeframe, and needs to be subtracted from the Total Time when availability is calculated. Depending on the wording of an SLA, if the availability of a system drops below that in the signed SLA, a hosting provider often will provide a partial refund for time lost. How downtime is determined changes from provider to provider, therefore reading the SLA is imperative.[11] Not all providers release uptime statistics.[12] Most hosting providers will guarantee at least 99.9% uptime which will allow for 43m of downtime per month, or 8h 45m of downtime per year.

Migration or transfer services are often free or offered at a reasonable fee. These services help move your existing site to the new hosting provider. They can save a huge amount of hassle. Just remember that the migration process is often automated, and may fit in with the host's processes and needs rather than yours. Not everything may migrate, and you may find the organization of the newly migrated site makes for harder maintenance in the long run.
The first thing that caught our eye about Complete Internet Hosting was a great answer to my biggest complaint about hosting providers. Most hosting providers will suck you in with a relatively aggressive starting price, but when it comes time to renew, the renewal price can be two or three times the original price. I've even found one company that renews at more than six times the original price.
14. FasthostsFasthosts is another reliable and secure hosting/domain provider trusted by top brands around the world. It lets you build professional websites and e-Shops, host and manage existent ones, or use any of its well-known hosted email or Microsoft exchange services. In addition to the standard root, cloud, and dedicated servers, Fasthosts is one of the very few players in the arena that lets you launch managed stacks and ready-to-use apps on the CloudNX platform for cost- and scale- efficiency. Dedicated server users will also get free SSL certificates and tools to control their online performance end to end. In terms of security features, Fasthosts safeguards your data and applications with Private Networks, Firewalls, VPNs, SSL certificates, and full server backups. 
We’re extremely proud to be able to offer the greenest options for web hosting in Canada. Data centres use a lot of electricity, and our state of the art facility was designed to be environmentally and technologically efficient. Protecting the planet matters, and our green data centres allow you to run your website effectively both in terms of technical performance and environmental consumption. We’ve been helping websites succeed online for over 10 years, and we’re ready to yours do the same.
As you might expect with a cheap hosting plan, you can only operate one website on the Hatchling plan. And you won’t get a free domain name for a year, either. But we like the super-low pricing and the free transfers for new accounts within the first month after you’ve signed up. A 45-day money-back guarantee means that if you’re not happy with the service, you can cancel it.

Many desirable domain names are already assigned and users must search for other acceptable names, using Web-based search features, or WHOIS and dig operating system tools. Many registrars have implemented domain name suggestion tools which search domain name databases and suggest available alternative domain names related to keywords provided by the user.

You could think of the sites that share your server as your roommates; there's really not that much separating you from them. Sure, you can close the bedroom door, but they can still cause nightmares for you in the kitchen and the bathroom. In web hosting terms, all the sites share a single server's resources, so huge traffic spike on Site A may impact the neighboring sites' performances. It's even possible that another site could take down the shared server altogether, if it crashed hard enough.
Which of These Web Hosting Companies is for You?If you plan to start your ecommerce business or stay in business for long, if you already have one, then a reliable web hosting service is simply a must. This includes dependability in terms of hardware and software.Sturdy-built data warehouse structures, cutting-edge environment protection systems, and the most stringent safety and security measures should also figure in the final reckoning.For these reasons, you cannot go wrong with InMotion Hosting, which leads the web hosting candidates here. Its 30-day money-back guarantee gives you ample time to see out how the company delivers on its promises. You can test how everything fits your requirements when you visit the Hostinger website.

Next are third-level domains, which are written immediately to the left of a second-level domain. There can be fourth- and fifth-level domains, and so on, with virtually no limitation. An example of an operational domain name with four levels of domain labels is sos.state.oh.us. Each label is separated by a full stop (dot). 'sos' is said to be a sub-domain of 'state.oh.us', and 'state' a sub-domain of 'oh.us', etc. In general, subdomains are domains subordinate to their parent domain. An example of very deep levels of subdomain ordering are the IPv6 reverse resolution DNS zones, e.g., 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa, which is the reverse DNS resolution domain name for the IP address of a loopback interface, or the localhost name.
The company also offers higher-end Windows and Linux servers, available with Plesk and cPanel respectively. We were very intrigued to see that the company offers low-end Atom-based dedicated servers as well as the more traditional Xeon-based machines. One great resource for those doing some basic experimentation, or site development, is that it has a free, three-month trial for one of its lightly equipped Atom servers.
GlowHost earned our kudos for its 91-day money-back guarantee. It's six days short of DreamHost's 97-day guarantee, but with these numbers, who's quibbling over a few days? The company also offers 24/7/365 phone support option and free cPanel offering for most plans. The company operates 18 data centers worldwide. Finally, the company garnered extra kudos by driving all its hosting services with wind power. 

17. SiteGroundThe competitive edge of SiteGround is its expertise in all types of Linux-tailored web hosting, as the company offers great plans for cloud, share, reseller, and dedicated hosting buyers. Carefully tailored enterprise hosting plans will also be available to corporate users, made flexible so that they could meet their specific needs and expectations. A reason why experts often recommend SiteGround are security precautions, as it provides a number of safeguarding measures, including the add-on HackAlert Monitoring ($1/month), the antispam software tools SpamAssassin and SpamExperts, IP address blocklists, and hotlink protection. At the moment, SiteGround hosts over 350,000 sites worldwide. You may also be interested to know that it supports ecommerce applications like Magento, osCommerce, and Prestashop. 
When it comes to server operating systems, Linux is typically the default option. Still, some services offer a choice of Linux or Windows hosting. If you have specific server-side applications that require Windows, such as SQL Server or a custom application written in .NET, then you need to make sure your web host has Windows hosting. But don't let the idea of a Linux host intimidate you. Nowadays, most web hosts offer a graphical interface or a control panel to simplify server administration and website management. Instead of typing at the command line, you'll click easily identifiable icons.
18. Host1PlusHost1Plus is a unified solution for VPS hosting, fast cloud storage, IPv4 & IPv6, and full DNS control. It comes with powerful API, KVM virtualization, and custom ISO for Windows and Linux users. The scalable architecture allows Host1Plus to follow your growing demands, and boost all necessary resources with both managed and unmanaged plans. All unmanaged plans are TUN/TAP/PPP enabled and come with SSD caching, 500 Mbps uplink, Virtuozzo & OpenVZ, backups, and RAID data storage for up to 32 IPv4 addresses. You can use Host1Plan to create your domain zones and edit records directly at your Client Area, and control several Linux OS instances (Ubuntu, Fedora, Debian, CentOS, and Suse). You can also connect your virtual console to their emergency console to retrieve access to your server, and protect your data.
Toby Sembower built and hosted his first website in 1998, when the Internet was often annoyingly referred to as "the information super-highway." Toby is the first to admit that site was plain terrible. Nonetheless, it piqued his interest in the Web, and he would go on to build, own, and operate (and host externally) sites totaling 100+ million visits on a variety of subject matters. Today Toby is CEO at Digital Brands Inc., a fast-growing firm that owns and operates a number of popular web properties.

Why? Because word of mouth only gets you so far in the internet era. People discover new businesses—even local business—via Bing, Google, and Yahoo. The days when they'd just look you up in the yellow pages are long gone. If you don't have a sharable website address, your chances of building online word of mouth via social networking plummet, too. In other words, no website, no discoverability, no money. Of course, web hosting isn't just for businesses. You may want to host a personal website or blog, too. Either way, the services here have you covered.
The host may also provide an interface or control panel for managing the Web server and installing scripts, as well as other modules and service applications like e-mail. A web server that does not use a control panel for managing the hosting account, is often referred to as a "headless" server. Some hosts specialize in certain software or services (e.g. e-commerce, blogs, etc.).
Domain names are formed by the rules and procedures of the Domain Name System (DNS). Any name registered in the DNS is a domain name. Domain names are organized in subordinate levels (subdomains) of the DNS root domain, which is nameless. The first-level set of domain names are the top-level domains (TLDs), including the generic top-level domains (gTLDs), such as the prominent domains com, info, net, edu, and org, and the country code top-level domains (ccTLDs). Below these top-level domains in the DNS hierarchy are the second-level and third-level domain names that are typically open for reservation by end-users who wish to connect local area networks to the Internet, create other publicly accessible Internet resources or run web sites.
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