Your A2 Hosting account comes pre-configured with PHP accelerator OPcache. External tests have shown OPcache offers up to 50% faster PHP processing! While some users prefer accelerators like eAccelerator or xCache, we've found the largest performance boost with OPcache. OPcache is available by default with PHP 5.5, while APC is available on previous PHP versions.

Similarly, in the case of VPS, there are several users that are using the same server but they are isolated from each other. It means that no one will be affected by how much resources another is using. You will get the speed and security that you need without compromise. It is almost a perfect scenario because you will get the benefits of a private server with shared cost of services.


Unmetered hosting is generally offered with no limit on the amount of data-transferred on a fixed bandwidth line. Usually, unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s (with some as high as 10Gbit/s). This means that the customer is theoretically able to use ~3 TB on 10 Mbit/s or up to ~300 TB on a 1000 Mbit/s line per month, although in practice the values will be significantly less. In a virtual private server, this will be shared bandwidth and a fair usage policy should be involved. Unlimited hosting is also commonly marketed but generally limited by acceptable usage policies and terms of service. Offers of unlimited disk space and bandwidth are always false due to cost, carrier capacities and technological boundaries.[3]

Yes, it’s secure. VPS security comes from each instance’s isolation from the other environments on the server. Contrast that with shared hosting, where environments are sharing the same resources and can be affected by each other’s vulnerabilities. A denial of service attack on a website in a shared environment can bring down other companies’ data and websites hosted on that server, where each VPS environment is isolated and protected.
Expert Overview:

Similarly, in the case of VPS, there are several users that are using the same server but they are isolated from each other. It means that no one will be affected by how much resources another is using. You will get the speed and security that you need without compromise. It is almost a perfect scenario because you will get the benefits of a private server with shared cost of services.
So that’s it, then – a VPS is for everything in between, right? Well, yes…and no. A VPS (Virtual Private Server) is a flexible solution that falls in between shared and dedicated hosting, not only in price but also in the way it functions. Like a dedicated server, a site hosted on a VPS gets its own RAM and disk space; however, like a shared server, it uses the same processing capacity (CPU) as a certain number of other sites. So, while your site’s performance isn’t reliant on shared RAM and disk space, it is dependent on a shared processor. Moreover, the distribution of processor share varies from provider to provider.  The table below shows how most hosting companies break down the differences between shared, VPS, and dedicated hosting plans:
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A VPS runs its own copy of an operating system (OS), and customers may have superuser-level access to that operating system instance, so they can install almost any software that runs on that OS. For many purposes they are functionally equivalent to a dedicated physical server, and being software-defined, are able to be much more easily created and configured. They are priced much lower than an equivalent physical server. However, as they share the underlying physical hardware with other VPSes, performance may be lower, depending on the workload of any other executing virtual machines.[1]

Bitcoin users can often even avail additional protection from attacks via services offered by the providers such as Bitcoin DDos protection, which can allow you to fend off any attack whatsoever.
InMotion VPS hosting offers a managed server with a management and security update plan, so business owners can concentrate on the business itself, and leave the complicated matter of site management to InMotion’s team of experts. This is generally a more popular option instead of self hosting, as the majority of business owners are not computer experts, and don’t have a dedicated website manager on staff.

If you are familiar with hosting control panels, shell commands, and you have basic server administration and troubleshooting skills, then unmanaged VPS is the way to go. Note that while you purchase self­ managed VPS, you should be capable of managing applications, software, services installed on your VPS. Also, you must know installation/un­installations, resource monitoring, server performance tweaking and troubleshooting of any technical issues.


You’ll also Benefit from the Following Features:
VPS stands for Virtual Private Server and refers to a private, emulated dedicated hosting environment created through virtualization on a host (a computer or other device connected to other computers or devices via a network), server (called the “parent server”), or cluster of servers. It acts like a physical server but, in reality, it’s a piece of software that’s emulating dedicated hardware.

A mere 1-second page load delay impacts your bounce rate, SEO rankings and even your conversion rate. You won't have to worry about any of this when you choose A2 Hosting and our screaming fast SwiftServer platform! Hosting on speed optimized servers with your choice of server location, free SSDs and our up to 20X faster Turbo Servers are all advantages of choosing A2 Hosting!

Yes, it’s secure. VPS security comes from each instance’s isolation from the other environments on the server. Contrast that with shared hosting, where environments are sharing the same resources and can be affected by each other’s vulnerabilities. A denial of service attack on a website in a shared environment can bring down other companies’ data and websites hosted on that server, where each VPS environment is isolated and protected.


I find it non-sense for the hosts to put anything less than 99% uptime on their pages, even if they have to lie. People will simply turn away if they write anything less than that. Some of my friends and I had experienced several down times on hosts who claimed the 99% uptime. I conclude that these numbers are just formalities without any serious meaning. Is that too heartless?

A mere 1-second page load delay impacts your bounce rate, SEO rankings and even your conversion rate. You won't have to worry about any of this when you choose A2 Hosting and our screaming fast SwiftServer platform! Hosting on speed optimized servers with your choice of server location, free SSDs and our up to 20X faster Turbo Servers are all advantages of choosing A2 Hosting!
If you are just starting your website and don’t receive very much traffic, then shared hosting is the ideal solution. However, if your website’s audience is consistently growing, you’ll want to consider upgrading. You don’t want to run the risk of your website running slowly or, even worse, your server crashing because it can’t handle the traffic. If you anticipate an increase in visitors, do yourself a favor and switch to VPS.
Expert Overview:
Once you register your website's domain name, it's time to start picking the specs for your server. Web hosts typically offer multiple VPS plans that have varying amounts of email capability, RAM, storage, CPU power, domain hosting, and monthly data transfers. The plans typically include website builders that let you quickly create a face for your site without much—or even any—coding required. A solid web host should offer at least 4GB of RAM, 100GB of storage, and an ample volume of monthly data transfers. If you expect a significant amount of website growth, then you should look for a web host that has as many unlimited offerings as possible. For example, Hostwinds—the PCMag Editors' Choice for VPS hosting—offers unlimited email, domains, and monthly data transfers. Note, however, that as with all unlimited service offerings, you really need to read the fine print to make sure that what you mean by unlimited and what the hosting service means by it.
For most purposes, a virtual private server is similar to a physical server and since they are software-defined, they can be more easily configured and created.
Quick review: AltusHost is a well-known premium hosting provider based in Netherlands. The company provides rock-solid customer support and offer three different server locations in Europe (Bulgaria, Netherlands, and Sweeden). We think AltusHost may be the right call for small businesses and individual bloggers who want a reliable EU-based hosting solution.

Learning how to set up a VPS after upgrading from shared hosting is like leaving the kiddie pool to dive into an Olympic-sized one. You have a lot more room and features to play with, but you’ll need to find your footing before you can start having fun. Now that you know how to configure your VPS, you’ve become acquainted with the command line, which will make it a lot easier to set everything up to your liking.
If you are familiar with hosting control panels, shell commands, and you have basic server administration and troubleshooting skills, then unmanaged VPS is the way to go. Note that while you purchase self­ managed VPS, you should be capable of managing applications, software, services installed on your VPS. Also, you must know installation/un­installations, resource monitoring, server performance tweaking and troubleshooting of any technical issues.
Affordability
Essentially, here’s the criteria I would use to judge things – if your site is made up of primarily static, HTML-based content, then you probably don’t need a VPS package.  However, if you have a large amount of files stored, multiple sites, dynamic content, and the possibility of major traffic from time to time, then you might consider upgrading to a VPS. It’s a powerful package that allows you to do more than you could with a shared hosting plan, but requires less investment than a dedicated server.
As you can see, a VPS can be the perfect middle ground for many – enough flexibility and resources for those who need more access or control than on a shared server but without the cost of a dedicated server. If you need root access, you can’t get that on a shared server, but you can get it on a VPS. If your site experiences unpredictable swings memory usage, and your host provides it, then the presence of burstable memory will be attractive. And, if you’re a fan of customization, then the fact that you can customize server-level software such as PHP, MySQL, and Apache will perk your interest.  In short, choosing a VPS will allow you to have many of the same characteristics of a dedicated server but in a more affordable and manageable package.
You can also set up hosting control panels that will enable you to interact with your server using a GUI. However, we’re not going to cover that in this article, since using the command line is often the more efficient route. Plus, learning how to use simple commands will teach you a lot about server management, which will almost certainly come in handy as your site grows.

All the features I've detailed to this point are valuable to the web hosting experience, but none matches the critical importance of site uptime. If your site is down, clients or customers will be unable to find you or access your products or services. It doesn't matter how great the features are, or how good it looks; if your site is down, it might as well not exist.

VPS stands for Virtual Private Server and refers to a private, emulated dedicated hosting environment created through virtualization on a host (a computer or other device connected to other computers or devices via a network), server (called the “parent server”), or cluster of servers. It acts like a physical server but, in reality, it’s a piece of software that’s emulating dedicated hardware.

Think of a shared server as a large apartment complex, and all of the individual apartments are rented by other website owners. All of you need a place to live — just like your website’s files — but going out to buy a huge family home would be too expensive for your needs. Sharing common areas and utilities in an apartment block helps keep costs down. And the same is true for shared hosting.
You also get the following benefits:
Unmetered hosting is generally offered with no limit on the amount of data-transferred on a fixed bandwidth line. Usually, unmetered hosting is offered with 10 Mbit/s, 100 Mbit/s or 1000 Mbit/s (with some as high as 10Gbit/s). This means that the customer is theoretically able to use ~3 TB on 10 Mbit/s or up to ~300 TB on a 1000 Mbit/s line per month, although in practice the values will be significantly less. In a virtual private server, this will be shared bandwidth and a fair usage policy should be involved. Unlimited hosting is also commonly marketed but generally limited by acceptable usage policies and terms of service. Offers of unlimited disk space and bandwidth are always false due to cost, carrier capacities and technological boundaries.[3]
Simply put, shared hosting means your site will share the same server as many other sites. It’s usually the cheapest option but comes with limited bandwidth, administration, and performance capabilities. VPS hosting is a more premium option, with the ability for greater customization and increased performance. But, as with any premium service, you’ll have to pay more to get more.
Max Ostryzhko:
Essentially, here’s the criteria I would use to judge things – if your site is made up of primarily static, HTML-based content, then you probably don’t need a VPS package.  However, if you have a large amount of files stored, multiple sites, dynamic content, and the possibility of major traffic from time to time, then you might consider upgrading to a VPS. It’s a powerful package that allows you to do more than you could with a shared hosting plan, but requires less investment than a dedicated server.
Expert Overview
Nice read Rahul ! While you compare all hosting types, I would like to point out one important thing related to shared hosting. Undoubtedly, VPS hosting has become the most popular hosting type in short span, but shared hosting has its own benefits. First and most important one is – Shared Hosting is by Default Fully Managed, that means you don’t have to worry about security of your website, server updates, software update, spamming from your mailboxes, etc.

                        

Do you remember those times when you were living on a college campus with very noisy roommates? Or maybe they were super quiet and you enjoyed every day? The point is, it was a gamble - you never knew whom you ended up with. This is pretty much the same as having shared hosting account - you haven’t the faintest idea who is your roommate on a server. The analogy may sound funny but if someone on a shared server becomes a distributed denial of service (DDoS) attack target or get blocked for mass mailing, other accounts on the server will be affected as well. Also, if a shared account abuses server resources, the whole server will be impacted. Using a VPS is like owning a house with a 9 foot privacy fence. You won’t be bothered no matter what your neighbors are doing.
While using a shared hosting server, you do not have access to the entire server, unlike in a VPS, where the entire virtual server is under your complete control. Hence, either you or someone you employ will have to look after the server and ensure that its performance remains optimum. If your VPS provider takes charge of maintaining the server, it is known as a managed server. On the other hand, in an unmanaged VPS, the entire responsibility of the server will rest on your shoulders.
The moment you plan on running an online store is the moment you should upgrade your hosting plan. Why? Because with VPS, you have a secure and dedicated virtual server where you are more likely to pass a PCI compliance test. The Payment Card Industry Data Security Standard was established by major credit card brands to protect against cardholder data theft.
Proxy literally means “a representative”. It works as an intermediary between your device and the rest of the Internet. When your device sends a request, a proxy intercepts it and checks whether it has requested data in the cache. If yes, it returns the cached version of data without connecting to the requested resource. If not, a proxy server passes your request further but changes your IP to its own. Because of the fact that proxy hides an endpoint device’s IP addresses, it is often confused with a VPN. However, apart from the IP hiding, a VPN and a proxy server are used for different purposes.
A great advantage of VPS, compared to both shared and dedicated solutions is snapshot technology support. A snapshot is a state of a system at a certain point in time. It works like game saves in your favorite computer game. If a game is not going well, you can exit and start from a checkpoint. A snapshot works the same way; if you need to go back in time, your system can be restored from a snapshot to its previous state. It is extremely useful in case of a system failure or simply if you run complex tests and wish to save your progress. Unlike a backup option that copies the whole system each time you run it, a snapshot contains only changes. This means that a snapshot takes less space than a backup and can be created/restored quicker. It does not mean that you do not need backups though. Backups are still life-savers in case of operating system failure. Don’t forget to store them externally.
“Elastic” is a word that you’ll sometimes hear being used to describe VPS services. It means that it’s quick and easy to add more RAM, CPU power or HDD space if and when your site needs them. It can save you time and money because balance and efficiency are taken care of. Your extra resources are available straight away and they keep your site purring along happily at peak times. If you want to transfer your virtual server to another physical machine, then you can do so without any loss of service to your website. Since its cloud-based you benefit from greater security and stability, too.
WebSocket's create two-way interaction between a browser and a website possible for a realtime web experience. This is instead of the server needing to be called intermittently to access new information. Websockets are ideal for developing live content and realtime games. Not only do our Turbo Servers make it easier to setup a WebSocket, Turbo allows you to better handle incoming connections and provides enhanced security.
VPS Web Hosting is ideal for business sites and websites that require increased resources to handle more traffic than a shared hosting plan allows. And with Managed VPS Hosting plans simplifying the process, you don’t need to be a tech expert to use VPS Hosting for your websites. Here our three VPS Hosting Plans we would put at the top of any list.
Liquid Web has been around for almost 2 decades and offers fast and reliable, fully managed VPS Hosting solutions. All of their VPS plans run on a proprietary Storm platform and available in Linux or Windows operating systems. Their Storm platform is both scalable and customizable to individual user needs. They provide 24x7 support on all plans. if you are looking for the of a power a Dedicated Server with features of a Cloud Server you should consider Liquid Web.
• Free SSL Certificate
And if your “neighbor” on the server is hacked, there’s little chance the infection will spread to your VPS because the hypervisors that are used to create separate VPS environments deliver multi-layered network security and keep tight controls on what enters and leaves. Your root access also means you can add or customize your VPS security software as you please.
Similarly, in a real dedicated server, you will pay for the entire server that is not shared with anyone else. You will get complete control over all services. Unfortunately, it is also the most expensive hosting option and needs some technical expertise to manage. It is commonly used by those who have websites with specific scenarios, most commonly extremely high traffic and tight security requirements.

Are you ready to move your site to A2 Hosting, but nervous about doing the actual site migration to our servers by yourself? Don't be! In most cases we can move your site for free. Just contact our friendly 24/7/365 Guru Crew Support team to request that they move your site for you! It's a worry-free migration! That means there's no more barriers for you to get your hands on all of our site speed optimization resources! Isn't it about time that you love your web host?
Similarly, in a real dedicated server, you will pay for the entire server that is not shared with anyone else. You will get complete control over all services. Unfortunately, it is also the most expensive hosting option and needs some technical expertise to manage. It is commonly used by those who have websites with specific scenarios, most commonly extremely high traffic and tight security requirements.
Learning how to set up a VPS after upgrading from shared hosting is like leaving the kiddie pool to dive into an Olympic-sized one. You have a lot more room and features to play with, but you’ll need to find your footing before you can start having fun. Now that you know how to configure your VPS, you’ve become acquainted with the command line, which will make it a lot easier to set everything up to your liking.
Think of a shared server as a large apartment complex, and all of the individual apartments are rented by other website owners. All of you need a place to live — just like your website’s files — but going out to buy a huge family home would be too expensive for your needs. Sharing common areas and utilities in an apartment block helps keep costs down. And the same is true for shared hosting.
Affordability
This doesn’t happen with VPS hosting because each mini-server has its own allotment of resources. You can’t use more resources than your allotment, but that also means that no other site can take resources from you. Basically, it is like having a smaller size dedicated server without having to pay the hefty ($100 per month or more) price tag that goes with a dedicated server.
It all starts with a dedicated server (a.k.a. a bare-metal server). Instead of using it as a dedicated server or dividing it into hundreds of shared accounts, a server owner decides to turn it into dozens of smaller servers (here comes a difference between shared and VPS hosting - with shared hosting you get an ‘account’, while with VPS you get a ‘server’). In order to divide a bare-metal server into several virtual machines (i.e. in order to virtualize a server), we need to install software called hypervisor.
A mere 1-second page load delay impacts your bounce rate, SEO rankings and even your conversion rate. You won't have to worry about any of this when you choose A2 Hosting and our screaming fast SwiftServer platform! Hosting on speed optimized servers with your choice of server location, free SSDs and our up to 20X faster Turbo Servers are all advantages of choosing A2 Hosting!
VPS hosting is like you are living in an apartment complex. It means that other people are living in the same building, but you have your own secure apartment. You will get more room and restrictions will be fewer as compared to living in a dorm. It also means that if your neighbour is misbehaving, it is the problem of owner of building, not yours.
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