ICANN publishes the complete list of TLD registries and domain name registrars. Registrant information associated with domain names is maintained in an online database accessible with the WHOIS protocol. For most of the 250 country code top-level domains (ccTLDs), the domain registries maintain the WHOIS (Registrant, name servers, expiration dates, etc.) information.
Domain names serve to identify Internet resources, such as computers, networks, and services, with a text-based label that is easier to memorize than the numerical addresses used in the Internet protocols. A domain name may represent entire collections of such resources or individual instances. Individual Internet host computers use domain names as host identifiers, also called hostnames. The term hostname is also used for the leaf labels in the domain name system, usually without further subordinate domain name space. Hostnames appear as a component in Uniform Resource Locators (URLs) for Internet resources such as web sites (e.g., en.wikipedia.org).
Established back in 1998, HostPapa operates three state-of-the-art data centers. Equipped with multiple GigE fiber connections to the internet backbone, the company built out seismically braced racks and cabinets, fully redundant Liebert HVAC cooling systems, a diesel generator that can run for weeks and a preaction dry pipe fire suppression system.
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.
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.
Many web hosting services offer a low "starting price," but require you to prepay for two or three years of service to get that price. After the promotional period, the renewal price for some web hosting services can be two, three, or even four times the initial promotional pricing. While the initial deal might be incredible, the cost of transferring your site (or paying the added fee) in a couple of years may be something to consider.
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.
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.).
When the Domain Name System was devised in the 1980s, the domain name space was divided into two main groups of domains.[7] The country code top-level domains (ccTLD) were primarily based on the two-character territory codes of ISO-3166 country abbreviations. In addition, a group of seven generic top-level domains (gTLD) was implemented which represented a set of categories of names and multi-organizations.[8] These were the domains gov, edu, com, mil, org, net, and int.
The right to use a domain name is delegated by domain name registrars, which are accredited by the Internet Corporation for Assigned Names and Numbers (ICANN), the organization charged with overseeing the name and number systems of the Internet. In addition to ICANN, each top-level domain (TLD) is maintained and serviced technically by an administrative organization operating a registry. A registry is responsible for maintaining the database of names registered within the TLD it administers. The registry receives registration information from each domain name registrar authorized to assign names in the corresponding TLD and publishes the information using a special service, the WHOIS protocol.
4. HostGatorHostGator is our top choice on our 20 best web hosting companies list without a doubt. It specializes in website, VPS hosting, and dedicated services for over 9 million users so far. Their cloud-hosting packages are among the most affordable packages of this kind in the market, and yet guarantee 2x faster performance and 4x enhanced scalability, with a dashboard that is very easy to use. For WordPress users, HostGator offers built-for-speed plans with advanced security and free migrations, while VPS hosting users will benefit from full root access and scalable resources. A Dedicated Hosting package, on the other hand, will equip you with an end-to-end management package for ultimate performance, and a price scaled to meet your specific needs. What HostGator is best known for is providing a streamlined hosting experience, as a support team is there to assist you  24/7 and to guarantee the company’s impeccable 99.9% uptime. Plus, you can have your existing website seamlessly transferred to a HostGator location or use their handy Website Builder to create a brand new one. As a HostGator user, you’ll also be entering a millions-wide user community, and be able to exchange opinions with website owners worldwide. In case you’re not satisfied, you can rely on the company’s 45-days money-back guarantee.
Do you recommend any of those for “testing purposes”? I am looking for a free hosting with a CPanel and easy WordPress installation and management; I fully understand that a testing website is not the same as a productive one but since it would up to the customer to find the best hosting to migrate (though I am helping a little bit on that project) and for my testing purposes paying is not precisely an option since none of those sites is where they would host their site at the end; I am looking for something free but that is good enough for me to work and test and to give a final demo to my customer
But, again, operationally it's quite strong. 24/7/365 customer support is available not only by live chat and email, but by phone. It offers free site migrations with some dedicated attention paid to making a transfer as smooth as possible. And, if you're willing to go for one of the higher-end plans, the company has put some serious attention into performance and caching.
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.
4. HostGatorHostGator is our top choice on our 20 best web hosting companies list without a doubt. It specializes in website, VPS hosting, and dedicated services for over 9 million users so far. Their cloud-hosting packages are among the most affordable packages of this kind in the market, and yet guarantee 2x faster performance and 4x enhanced scalability, with a dashboard that is very easy to use. For WordPress users, HostGator offers built-for-speed plans with advanced security and free migrations, while VPS hosting users will benefit from full root access and scalable resources. A Dedicated Hosting package, on the other hand, will equip you with an end-to-end management package for ultimate performance, and a price scaled to meet your specific needs. What HostGator is best known for is providing a streamlined hosting experience, as a support team is there to assist you  24/7 and to guarantee the company’s impeccable 99.9% uptime. Plus, you can have your existing website seamlessly transferred to a HostGator location or use their handy Website Builder to create a brand new one. As a HostGator user, you’ll also be entering a millions-wide user community, and be able to exchange opinions with website owners worldwide. In case you’re not satisfied, you can rely on the company’s 45-days money-back guarantee.

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.
We've had our site hosted by Doteasy for years now. Their tech support team is super helpful when we come across issues with our site and were there to walk us through the necessary steps when we decided to migrate to a business plan in line with our site's growing amount of visitors. They're a great company to do business with. Working with a local company also means not having to deal with different time zones and long-distance call costs.
^ March 16, 1992 memo from Mariam Leder, NSF Assistant General Counsel to Steven Wolff, Division Director, NSF DNCRI (included at page 128 of Management of NSFNET, a transcript of the March 12, 1992 hearing before the Subcommittee on Science of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Second Congress, Second Session, Hon. Rick Boucher, subcommittee chairman, presiding)
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.
Beyond that, DreamHost is a top website hosting company for many reasons. It operate its own control panel, which is convenient and easy to understand. While phone customer support isn't available 24/7, it is responsive to live chat and tickets. The company uses super-fast SSDs for all its storage, has a free SSL certificate (for more secured web browsing) and provides SSH access for those plans that are intended for more technical users.

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.
Before we launch into our buying guide, you should know the three different categories on offer: shared web hosting (a good basic option if you're on a budget), VPS hosting (more flexible) and dedicated servers (for those running a bigger operation and in need of something more capable). If you're not sure which is the best level for you, you’ll find a detailed explanation of the different tiers at the bottom of this guide. It's also worth bearing in mind that you need to pick something that's going to be able to grow and scale up with you.

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2. HostingerIf you’re looking for a cheap, yet very efficient MySQL, FTP & PHP hosting service, look no further than Hostinger. Developed to support individual site owners, small and developing businesses, Hostinger secures a free domain, unlimited disk and bandwidth, unrestricted access to premium support, and one of the fastest WordPress hosting services. In such fashion, Hostinger attracted over 29 million of free and paid clients on its side. Currently, it is investing in web design supplies to boost this number even more.A 30-day money-back guarantee is provided alongside any paid plan, to give prospective users a chance to examine features firsthand.
To sweeten the deal, all of InMotion's plans come with a ton of great free features that other services might charge extra for – think malware and DDoS protection, basic backups, 'spam-safe' email and a WordPress-based website builder (if you're looking at WordPress options specifically, take a look at our dedicated guide to the best WordPress hosting services).
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.
What sets the company apart is its first-year hosting price of less than a buck a month. The company's least expensive plan is a startlingly low 80 cents a month. This is the least expensive hosting program we've seen, although the price does go up after that first year. In fact, most of the company's plans increase after its promotional price expires. 
For special purposes, such as network testing, documentation, and other applications, IANA also reserves a set of special-use domain names.[15] This list contains domain names such as example, local, localhost, and test. Other top-level domain names containing trade marks are registered for corporate use. Cases include brands such as BMW, Google, and Canon.[16]
15. GreenGeeksIf you’re committed to renewable energy, you should give GreenGeeks a look. The hosting platform claims to be the cleanest hosting around, backed by 300% Renewable Energy Commitment. For prices as low as $3.95/month, users get unlimited space, transfer, email + free domain, and marketing services, which also make GreenGeeks one of the most compact, do-it-all hosting solutions on the market. You can acquire a Reseller package and manage multiple cPanel hosting accounts, request VPS hosting with dedicated resources and flexibility (and no additional expenses), or get an entire Dedicated server for extreme performance and flexibility. Next to cPanel, app hosting is also available for WordPress, Drupal, Joomla, and CMS. 

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 host name 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.[10]
Before we launch into our buying guide, you should know the three different categories on offer: shared web hosting (a good basic option if you're on a budget), VPS hosting (more flexible) and dedicated servers (for those running a bigger operation and in need of something more capable). If you're not sure which is the best level for you, you’ll find a detailed explanation of the different tiers at the bottom of this guide. It's also worth bearing in mind that you need to pick something that's going to be able to grow and scale up with you.

The practice of using a simple memorable abstraction of a host's numerical address on a computer network dates back to the ARPANET era, before the advent of today's commercial Internet. In the early network, each computer on the network retrieved the hosts file (host.txt) from a computer at SRI (now SRI International),[4][5] which mapped computer hostnames to numerical addresses. The rapid growth of the network made it impossible to maintain a centrally organized hostname registry and in 1983 the Domain Name System was introduced on the ARPANET and published by the Internet Engineering Task Force as RFC 882 and RFC 883.
Critics often claim abuse of administrative power over domain names. Particularly noteworthy was the VeriSign Site Finder system which redirected all unregistered .com and .net domains to a VeriSign webpage. For example, at a public meeting with VeriSign to air technical concerns about SiteFinder,[25] numerous people, active in the IETF and other technical bodies, explained how they were surprised by VeriSign's changing the fundamental behavior of a major component of Internet infrastructure, not having obtained the customary consensus. SiteFinder, at first, assumed every Internet query was for a website, and it monetized queries for incorrect domain names, taking the user to VeriSign's search site. Unfortunately, other applications, such as many implementations of email, treat a lack of response to a domain name query as an indication that the domain does not exist, and that the message can be treated as undeliverable. The original VeriSign implementation broke this assumption for mail, because it would always resolve an erroneous domain name to that of SiteFinder. While VeriSign later changed SiteFinder's behaviour with regard to email, there was still widespread protest about VeriSign's action being more in its financial interest than in the interest of the Internet infrastructure component for which VeriSign was the steward.
4. HostGatorHostGator is our top choice on our 20 best web hosting companies list without a doubt. It specializes in website, VPS hosting, and dedicated services for over 9 million users so far. Their cloud-hosting packages are among the most affordable packages of this kind in the market, and yet guarantee 2x faster performance and 4x enhanced scalability, with a dashboard that is very easy to use. For WordPress users, HostGator offers built-for-speed plans with advanced security and free migrations, while VPS hosting users will benefit from full root access and scalable resources. A Dedicated Hosting package, on the other hand, will equip you with an end-to-end management package for ultimate performance, and a price scaled to meet your specific needs. What HostGator is best known for is providing a streamlined hosting experience, as a support team is there to assist you  24/7 and to guarantee the company’s impeccable 99.9% uptime. Plus, you can have your existing website seamlessly transferred to a HostGator location or use their handy Website Builder to create a brand new one. As a HostGator user, you’ll also be entering a millions-wide user community, and be able to exchange opinions with website owners worldwide. In case you’re not satisfied, you can rely on the company’s 45-days money-back guarantee.
That said, not all web hosts offer email. WP Engine, for example, does not. In such instances, you must email accounts from a company other than your web host. GoDaddy, for instance, sells email packages starting at $3.49 per user, per month. That might sound like a hassle, and just one more thing to keep track of, but there are actually some webmasters who feel that separating your email hosting and web hosting services is smart. That way, one provider going offline won't completely bork your business.
Do you recommend any of those for “testing purposes”? I am looking for a free hosting with a CPanel and easy WordPress installation and management; I fully understand that a testing website is not the same as a productive one but since it would up to the customer to find the best hosting to migrate (though I am helping a little bit on that project) and for my testing purposes paying is not precisely an option since none of those sites is where they would host their site at the end; I am looking for something free but that is good enough for me to work and test and to give a final demo to my customer
One's website is placed on the same server as many other sites, ranging from a few sites to hundreds of websites. 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 basic and not flexible in terms of software and updates. Resellers often sell shared web hosting and web companies often have reseller accounts to provide hosting for clients.
Almost all the services offer some sort of drag-and-drop website builder that makes it easy to drag and drop items to build your page. These are great for getting started, but they often lock you into the service. Most page builders are proprietary to the service, or don't create HTML that's portable enough to be easily moved to another service if you decide it's necessary.
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.
With a web hosting plan from HostPapa, you’ll get a dedicated, professional IT team, without the cost! The Papa Squad is ready to tackle any of your web hosting issues, and we’re ready to help 24/7. The Papa Squad are technical customer service experts with the knowledge and experience to help you solve any web hosting challenge that your website may face. No matter how many visitors, the amount of traffic or the number of orders your website receives, we’re here to make sure your web hosting solution can handle it all.
Some domain name registries, often called network information centers (NIC), also function as registrars to end-users. The major generic top-level domain registries, such as for the com, net, org, info domains and others, use a registry-registrar model consisting of hundreds of domain name registrars (see lists at ICANN[21] or VeriSign).[22] In this method of management, the registry only manages the domain name database and the relationship with the registrars. The registrants (users of a domain name) are customers of the registrar, in some cases through additional layers of resellers. 
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