A complex site calls for a more comprehensive package that provides database support and application development platforms (e.g. ASP.NET, ColdFusion, Java EE, Perl/Plack, PHP or Ruby on Rails). These facilities allow customers to write or install scripts for applications like forums and content management. Also, Secure Sockets Layer (SSL) is typically used for websites that wish to keep the data transmitted more secure.
And while the free hosts we recommend guarantee you can keep your free hosting as long as you’d like, you will want to take advantage of additional (paid) features as your site grows. Those same providers offer paid plans to upgrade your service, however, serious site owners should strongly consider opting for a reputable, affordable, full-featured hosting provider.

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.


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.
HostPapa uses Solid State Disks (SSD) for data storage. For your website hosting, this means a much faster loading speed. If your server can display your website at lightning speed, this will contribute to the user experience on your site. This includes more time spent on site, more interaction, more pages visited, eventually getting you to the goal you have for your website, whether it’s selling something or sharing your expertise, etc.

For more than a decade, Jeffrey L. Wilson has penned gadget- and video game-related nerd-copy for a variety of publications, including 1UP, 2D-X, The Cask, Laptop, LifeStyler, Parenting, Sync, Wise Bread, and WWE. He now brings his knowledge and skillset to PCMag as Senior Analyst. When he isn't staring at a monitor (or two) and churning out web hosting, music, utilities, and video game copy, Jeffrey makes comic books, mentors, practices bass and Jeet Kune Do, and appears on the odd podcasts or convention panel. He also collects vinyl and greatly enjoys a craft brew. You can a find Jeffrey online at jeffreylwilson.net, or send him a tweet at @jeffreylwilson

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.

Complete Internet Solutions is not like that. The price they quote is your locked-in price. In addition, they offer a free twelve months on top of your term. So, if you sign up for two years at $3.95 a month, you pay $94.80 for the two years, and then pay nothing for another year. If you choose to renew at the end of those three years, you can repeat that pricing program without a fee increase. This is how it should be done.
Finally, we were quite happy with their money-back guarantee. They offer a full 90-day guarantee (except for domain names you buy) and a pro-rated refund for the rest of your time. So if you want to cancel after 18 months and have six months left in your term, you'll get back the cost of the six remaining months. It's clear, it's understandable, and it's the straightforward way we'd like to see most providers use as a model.
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. A cluster may separate web serving from database hosting capability. (Usually web hosts use clustered hosting for their shared hosting plans, as there are multiple benefits to the mass managing of clients).[9]
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.

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]
A domain name is an identification string that defines a realm of administrative autonomy, authority or control within the Internet. Domain names are used in various networking contexts and for application-specific naming and addressing purposes. In general, a domain name identifies a network domain, or it represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet. In 2017, 330.6 million domain names had been registered.[1]
HostPapa uses Solid State Disks (SSD) for data storage. For your website hosting, this means a much faster loading speed. If your server can display your website at lightning speed, this will contribute to the user experience on your site. This includes more time spent on site, more interaction, more pages visited, eventually getting you to the goal you have for your website, whether it’s selling something or sharing your expertise, etc.
There are also a few other alternative DNS root providers that try to compete or complement ICANN's role of domain name administration, however, most of them failed to receive wide recognition, and thus domain names offered by those alternative roots cannot be used universally on most other internet-connecting machines without additional dedicated configurations.
The best web hosting service right now is Bluehost. Based in Utah, Bluehost is the preferred partner for WordPress, the world's favourite website builder. This service does a great job of balancing price and features for less experienced businesses, while offering lots of options for more advanced users. Its shared hosting packages start with a very reasonable 'basic' plan, targeted at home users.
A handful of domains will have restrictions on them, which means you can only purchase them if you meet or exceed certain criteria or have authorization (some examples are .gov, .edu and .mil). But most extensions are available to everyone. In fact, most country code Top Level Domains (ccTLDs) are available for anyone to purchase, even if you don't reside in the country code in question.

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.


^ 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)
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.

The web hosting provider got bonus points for its policy of performing regular daily backups, even on the lowest-priced shared hosting accounts. Be aware, though, that the promotional price on the low-cost shared hosting does go up after the promotional period. That said, Bluehost offers 24/7 phone support, a 30-day money-back guarantee and SSH access for certain plan options.


16. JustHostJustHost‘s functionality revolves around one main idea: eliminating all complexity attached to the creation and maintenance of a website, and making the experience enjoyable for all users. It encompasses tools to manage your entire online journey, from launching and managing a website to advertising on it and earning money from and around your content. As soon as your site goes live, JustHost ensures you can promote it on Google, Bing, and MOJO marketplaces, and download hundreds of apps and plugins that could be useful to your business. JustHost also specializes in app hosting for WordPress, Drupal, and Joomla sites, and offers cPanel and VPS packages. 
Domain names used in works of fiction have often been registered in the DNS, either by their creators or by cybersquatters attempting to profit from it. This phenomenon prompted NBC to purchase the domain name Hornymanatee.com after talk-show host Conan O'Brien spoke the name while ad-libbing on his show. O'Brien subsequently created a website based on the concept and used it as a running gag on the show.[37]
If you're not sure of the type of hosting your business needs, you might want to start small, with shared Web hosting. You can always graduate to a more robust, feature-rich package of, say, VPS hosting or even dedicated hosting in the future. Unfortunately, some hosts don't offer all hosting types. Consider how much you expect to grow your website, and how soon, before you commit to anything longer than a one-year plan. It's worth spending the time up front to make sure that the host you select with is able to provide the growth you envision for your site, as switching web hosting providers midstream is not a trivial undertaking.
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.
8. iPageiPage is another hosting service that made history, thanks to its excellent traction with customers. The company serves multiple geographies, offering standard cloud and WordPress hosting, but also selling exclusive domains and catering to teams in need of marketing and placement services. For almost 20 years, iPage offers small businesses an affordable alternative for shifting operations to the web, making sure they won’t be deprived of any exclusive features used by their larger competitors. This, however, is not the only thing that makes iPage a preferred provider – the company features an intuitive, code-free website management process, which makes it ideal also for personal, non-profit, and social brand websites. With them, you get free domain registration, unlimited email accounts, unmetered bandwidth, and disk space, and constant monitoring of your data.
People often think that a web host is the main cause of a slow website but, this is often not the case. When picking a provider, it's important for find a hosting provider that is close to your users and has a good amount of RAM and fast CPU power. Beyond that, it's often the way the website is set up that slows it down for users. To ensure that your website speed is optimal for users you need to make sure you pay attention to the following:
6. GoDaddyWith a reputation similar to HostGator, GoDaddy sets up multiple examples of how the best website hosting is supposed to function. This publicly-traded American Internet domain company went beyond HostGator’s head-spinning success and currently serves over 17 million users and supports 72 million domains all around the globe. In that aspect, GoDaddy can be considered as the world’s largest domain name hub and hosting service provider, and also praised by users for being highly secure. What makes GoDaddy unique is its focus on the corporate community – there are business-friendly .store domains that have been highly appreciated by online shoppers, as well as affordable SSL certificates that guarantee the safety of each user’s data. In a fashion reminiscent of HostGator, GoDaddy offers a hands-on website builder tool for novice users, lets owners retain control of what is happening on their websites, and comes with a 24/7/365 support and professional assistance.

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.).


I used godaddy for a few years but grew tired of constant price hikes not to mention how difficult it was to edit my site. My site was deleted when I canceled my subscription and I can’t use my web site name unless I want to fork over almost $200. I don’t need online ordering as I’m a small home bakery, I don’t need one email address let alone 10, I just want an online presence so customers can find me. However, I want to be sure I’m buying something I can work with easily. Any suggestions?
7. BluehostThe third representative of the ‘web-hosting trinity,’ Bluehost also belongs to those services one could hardly dispute on any grounds. You will certainly appreciate its easy to use interface, extremely low pricing plans (featuring a free domain and site builder), and the dedicated 1-click installer for WordPress users. WordPress. org recommends Bluehost as the #1 provider for easy installation and management, and the two companies partner to provide you with the best possible hosting experience for free. The cloud solution is also surprisingly affordable, knowing that even low-tier users are provided with advanced mastery features and the expected 24/7 support for their needs. The company also offers VPS and shared hosting, dedicated services, and reseller hosting, and will help you leverage Google and Bing advertising. 
In particular, Web Hosting Hub uses BoldGrid as a site builder. BoldGrid is actually an add-on to WordPress, so there's no lock-in. This overcomes the major problem of most site builders: you're locked into that host and that tool, often requiring you to completely rebuild your site if you want to expand. By using a WordPress-based solution, all of the rather considerable power of WordPress is available for future expansion.

A customer needs to evaluate the requirements of the application to choose what kind of hosting to use. Such considerations include database server software, scripting software, and operating system. Most hosting providers provide Linux-based web hosting which offers a wide range of different software. A typical configuration for a Linux server is the LAMP platform: Linux, Apache, MySQL, and PHP/Perl/Python. The web hosting client may want to have other services, such as email for their business domain, databases or multimedia services. A customer may also choose Windows as the hosting platform. The customer still can choose from Perl, PHP, Python, and Ruby, but the customer may also use ASP.NET or ASP Classic. Web hosting packages often include a web content management system, so the end-user does not have to worry about the more technical aspects. 

3. CloudwaysCloudways, a managed cloud hosting services provider based in Malta, claims to be the best WordPress and WooCommerce hosting company.  Cloudways aims to give design agencies, ecommerce store owners, bloggers, and developers the power to set up websites and manage web apps with ease. The platform caters to the need of individuals, teams, and businesses in different verticals such as media, IT, healthcare, fashion/apparel, interactive design studios, and entertainment.Although the company doesn’t offer a variety of hosting services, its Platform-as-a-Service, cloud-based web hosting sets it apart from other hosting providers. Besides, its array of reliable features, including SSD-based hosting, pre-configured PHP-FPM, one-click backup, and PHP 7 ready servers, enable users to create better digital experiences, maximize growth, and scale operations faster. Its service is backed by 24/7 expert support, which is available via live chat and ticket.The solution combines multiple core services such as Varnish, NGINX, Apache, MySQL, and Memcached to deliver seamless experience without impacting code compatibility. It also boasts a network of 41 datacenter locations, which make it easy to provision from the industry’s leading infrastructure providers such as Google Compute Engine, Amazon Web Services, Vultr, and DigitalOcean.For WordPress users, Cloudways is not only highly reliable, fast, and secure; it is affordable as well. The solution offers diverse pricing plans, plus it comes with a free WordPress migration plugin designed to streamline migration on multiple hosting environments. Also, as a Cloudways user, you will probably find its one-click managed services to be particularly impressive. With the one-click installations, it’s a breeze to get your WordPress and WooCommerce website or online store up and running right from the Cloudways control panel, in minutes.
In particular, Web Hosting Hub uses BoldGrid as a site builder. BoldGrid is actually an add-on to WordPress, so there's no lock-in. This overcomes the major problem of most site builders: you're locked into that host and that tool, often requiring you to completely rebuild your site if you want to expand. By using a WordPress-based solution, all of the rather considerable power of WordPress is available for future expansion.
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.

Domain names are created to make IP addresses easy to remember. Every computer has an IP address assigned to it - much like a street address. But instead of having to memorize each IP address number, we assign domain names to these numbers so we can easily remember them. The domain name system, or DNS, takes domain names and translates them into their IP addresses so that computers can communicate with one another.


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.
Domain names are created to make IP addresses easy to remember. Every computer has an IP address assigned to it - much like a street address. But instead of having to memorize each IP address number, we assign domain names to these numbers so we can easily remember them. The domain name system, or DNS, takes domain names and translates them into their IP addresses so that computers can communicate with one another.
It shouldn't come as any surprise that, like other web host providers, A2 Hosting's unlimited plans aren't actually unlimited. It expect you to use its service like "similarly situated customers." This is like being on a highway. If everyone is going a few miles above the speed limit, you're probably okay, but if you're barreling down the fast lane past everyone else, you're probably going to be asked to slow down.
We liked how Web Hosting Hub describes its new customer process. It tells new customers, "We walk you through setting up your account in a personal on-boarding call." The company has a few other wins as well. It offers an all-SSD infrastructure, automatic vulnerability patches and a custom firewall, SSH access for certain plans, free site migration and an excellent 90-day money-back guarantee. 
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.
Finally, we were quite happy with their money-back guarantee. They offer a full 90-day guarantee (except for domain names you buy) and a pro-rated refund for the rest of your time. So if you want to cancel after 18 months and have six months left in your term, you'll get back the cost of the six remaining months. It's clear, it's understandable, and it's the straightforward way we'd like to see most providers use as a model.
To host a website on the internet, an individual or company would need their own computer or server.[7] As not all companies had the budget or expertise to do this, web hosting services began to offer to host users' websites on their own servers, without the client needing to own the necessary infrastructure required to operate the website. The owners of the websites, also called webmasters, would be able to create a website that would be hosted on the web hosting service's server and published to the web by the web hosting service.
FinancesOnline is available for free for all business professionals interested in an efficient way to find top-notch SaaS solutions. We are able to keep our service free of charge thanks to cooperation with some of the vendors, who are willing to pay us for traffic and sales opportunities provided by our website. Please note, that FinancesOnline lists all vendors, we’re not limited only to the ones that pay us, and all software providers have an equal opportunity to get featured in our rankings and comparisons, win awards, gather user reviews, all in our effort to give you reliable advice that will enable you to make well-informed purchase decisions.

Web hosting services, on the other hand, run servers that are typically assigned only one or a few addresses while serving websites for many domains, a technique referred to as virtual web hosting. Such IP address overloading requires that each request identifies the domain name being referenced, for instance by using the HTTP request header field Host:, or Server Name Indication.
On the plus side, SiteGround offers free automatic daily backups, access to the Cloudflare CDN, high-performance SSDs for all plans, unlimited email accounts and integration of the free LetsEncrypt SSL certificate into sites. The company does limit bandwidth and storage, but even those who claim to offer so-called unlimited bandwidth and storage really have some limits in its terms of service.
Complete Internet Solutions is not like that. The price they quote is your locked-in price. In addition, they offer a free twelve months on top of your term. So, if you sign up for two years at $3.95 a month, you pay $94.80 for the two years, and then pay nothing for another year. If you choose to renew at the end of those three years, you can repeat that pricing program without a fee increase. This is how it should be done.
The user gets his or her own Web server but is not allowed full control over it (user is denied 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.
If you're planning on selling a product, look for a web host that offers a Secure Sockets Layer (SSL) certificate, because it encrypts the data between the customer's browser and web host to safeguard purchasing information. You're probably familiar with SSL; it's the green padlock that appears in your web browser's address bar as you visit an online financial institution or retail outlet. A few companies toss in a SSL certificate free of charge; others may charge you roughly $100 per year for that extra security layer.

If you're a WordPress user, Bluehost is definitely a web hosting provider to consider. While its managed WordPress hosting is a little more pricey than basic shared hosting, the company has both specific WordPress and WooCommerce hosting plans available (along with management support). It also offers a site migration service for an additional fee. 
The user gets his or her own Web server but is not allowed full control over it (user is denied 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.
Once you decide you price range, you need to consider how long you'll need web hosting. If it's a short-term project—say, less than a month or two—you can typically receive a refund should you cancel your hosting within 60 days. Some companies offer 30-day money-back guarantees, others offer 90-day money-back guarantees. Once again, it's beneficial to do your homework.
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.
Serving more than 15 million members, Bravenet provides a full-service hosting option for people looking for the complete package. In addition to a drag-and-drop site builder and unlimited storage, the Canadian company is one of the only free web hosters with an email marketing platform. Customers can also enjoy community-building features such as message boards, mailing lists, blogs, contact forms, polls, and other tools.
The most basic is web page and small-scale file hosting, where files can be uploaded via File Transfer Protocol (FTP) or a Web interface. The files are usually delivered to the Web "as is" or with minimal processing. Many Internet service providers (ISPs) offer this service free to subscribers. Individuals and organizations may also obtain Web page hosting from alternative service providers.
On the topic of dedicated hosting, many web hosting services also offer managed hosting. This type of hosting sees the web host act as your IT department, handling a server's maintenance and upkeep. This hosting option is something that you'd typically find with dedicated servers, so it's a business-centric addition. Naturally, it adds a few bucks to the hosting cost, but nothing that should break the bank if you have the resources for a dedicated server.
^ 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)
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.
For more than a decade, Jeffrey L. Wilson has penned gadget- and video game-related nerd-copy for a variety of publications, including 1UP, 2D-X, The Cask, Laptop, LifeStyler, Parenting, Sync, Wise Bread, and WWE. He now brings his knowledge and skillset to PCMag as Senior Analyst. When he isn't staring at a monitor (or two) and churning out web hosting, music, utilities, and video game copy, Jeffrey makes comic books, mentors, practices bass and Jeet Kune Do, and appears on the odd podcasts or convention panel. He also collects vinyl and greatly enjoys a craft brew. You can a find Jeffrey online at jeffreylwilson.net, or send him a tweet at @jeffreylwilson
Web hosting services, on the other hand, run servers that are typically assigned only one or a few addresses while serving websites for many domains, a technique referred to as virtual web hosting. Such IP address overloading requires that each request identifies the domain name being referenced, for instance by using the HTTP request header field Host:, or Server Name Indication.
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