The VPN server can be configured to use either Windows or RADIUS as an accounting provider. If Windows is selected as the accounting provider, the accounting information accumulates on the VPN server for later analysis. Logging options can be specified from the properties of the Local File or SQL Server objects in the Remote Access Logging folder in the Routing and Remote Access snap-in. If RADIUS is selected, RADIUS accounting messages are sent to the RADIUS server for accumulation and later analysis.
NordVPN, for example, has well over 4,800 servers across the globe. If you live in the US, you're likely to find a nicely uncrowded server close by. The ubiquity of its servers also means you're likely to find a server nearby no matter where you travel. Private Internet Access and TorGuard are notable for being the only VPNs we've yet reviewed that have more than 3,000 servers.
Mobile Apps: If you’re going to spend money on a VPN service provider (or even if you use a free one, frankly), you should be able to get a consistent experience across all of your devices. Most prominent providers offer desktop and mobile solutions for individual users, and while corporate and school networks may be a bit behind the curve here, they’re catching up too. Make sure you don’t have to use two different VPNs with two different policies and agreements just because you want to secure your phone along with your laptop.

A powerful VPN service, SaferVPN is very useful in hiding users’ IP addresses. It also allows access to blocked websites or safely share information. Privacy is also ensured as the service uses high security protocols. It offers a unique Automatic Wi-Fi Security feature which instantly activates a secure and encrypted VPN connection as soon as someone’s device connects to an unsecured Wi-Fi connection — automatically protecting them from public Wi-Fi threats. Likewise, it features single-click applications for Windows, Mac, iOS, Android and Chrome.
While privacy should be the number one deciding factor when choosing a VPN service, performance and speed are also a necessity. Our team has engineered TorGuard to provide the highest levels of security and speed from anywhere in the world. Regardless of whether you are connecting from North or South America, Europe, Asia or Oceania, our worldwide VPN network will provide you the fastest speeds possible from anywhere around the globe. TorGuard maintains 50+ VPN server locations with 3000+ Servers and our network is always expanding.
Final Verdict – NordVPN is easily one of the best all-around providers. I would especially recommend this VPN for users that value their privacy. The encryption protocols, jurisdiction, and logging policies of NordVPN make it the perfect VPN for users concerned about their privacy. And its Double VPN feature makes it stand out from the crowd, something I have covered in detail in NordVPN review.
Some virtual networks use tunneling protocols without encryption for protecting the privacy of data. While VPNs often do provide security, an unencrypted overlay network does not neatly fit within the secure or trusted categorization.[citation needed] For example, a tunnel set up between two hosts with Generic Routing Encapsulation (GRE) is a virtual private network, but neither secure nor trusted.[23][24]
Yet Mullvad is worth a look because it's extremely private and secure. It asks nothing about you when you sign up. Instead, it assigns you a random number that will be your combined username and password. You don't have to provide an email address, and you can pay by mailing cash to the company's headquarters in Sweden. (Mullvad also takes credit cards, PayPal, bitcoin and wire transfers.)
Logging: When you connect to a VPN, you’re trusting the VPN service provider with your data. Your communications may be secure from eavesdropping, but other systems on the same VPN—especially the operator—can log your data if they choose. If this bothers you (e.g., you’re the privacy/security advocate or the downloader), make absolutely sure you know your provider’s logging policies before signing up. This applies to location as well—if your company doesn’t keep logs, it may not matter as much where it’s located. (There’s a popular rumor that US-based VPN providers are required to log, in case the government wants them. This isn’t true, but the government can always request whatever data they have if they do log.) For a good list of VPN providers that don’t log your activities when connected (and many that do), check out this TorrentFreak article.

Unlike the separate tunnels created for each voluntary client, multiple dial-up clients can share a tunnel between the FEP and the tunnel server. When a second client dials into the access server (FEP) to reach a destination for which a tunnel already exists, there is no need to create a new instance of the tunnel between the FEP and tunnel server. Instead, the data traffic for the new client is carried over the existing tunnel. Since there can be multiple clients in a single tunnel, the tunnel is not terminated until the last user of the tunnel disconnects.
The service has around a hundred servers around the world, in all continents. Server switching is facilitated on the line from just about anywhere. This feature is ideal for use by those who need to reach different locations or those who are in obscure places. Connection speed is relatively fast, with the service offering unlimited bandwidth. Albeit significant lag can be experienced during connection, such is resolved in just a few minutes.
If you’re seriously concerned about government surveillance—we explain above why that should be most people’s last consideration when choosing a VPN—some expert sites like recommend avoiding services with a corporate presence in the US or UK. Such experts warn about the “14 eyes,” a creepy name for a group of countries that share intelligence info, particularly with the US. IVPN is based in Gibraltar, a British Overseas Territory. We don’t think that makes you any worse off than a company based in Switzerland, Sweden, or anywhere else—government surveillance efforts around the world are so complicated and clandestine that few people have the commitment, skills, or technology to avoid it completely. But because Gibraltar’s status has been a topic of debate in other deep dives on VPNs, we’d be remiss if we didn’t mention it.
One of the most popular VPN software out in the market today, NordVPN has over 550 servers in 49 different countries. These servers aid users in different needs, which include encryption of both incoming and outgoing data, sending all traffic through a Tor network to safeguard user anonymity and protection against DoS attacks, which are usually done by malignant hackers.
L2TP uses UDP messages over IP networks for both tunnel maintenance and tunneled data. The payloads of encapsulated PPP frames can be encrypted or compressed (or both); however, L2TP clients do not negotiate the use of MPPE for L2TP connections. Encryption for L2TP connections is provided by IPSec Encapsulating Security Payload (ESP) in transport mode.
Let's start with the basic idea of internet communication. Suppose you're at your desk and you want to access a website like ZDNet. To do this, your computer initiates a request by sending some packets. If you're in an office, those packets often travel through switches and routers on your LAN before they are transferred to the public internet through a router.
Some VPNs offer great service or pricing but little to no insight into who exactly is handling them. We considered feedback from security experts, including the information security team at The New York Times (parent company of Wirecutter), about whether you could trust even the most appealing VPN if the company wasn’t willing to disclose who stood behind it. After careful consideration, we decided we’d rather give up other positives—like faster speeds or extra convenience features—if it meant knowing who led or owned the company providing our connections. Given the explosion of companies offering VPN services and the trivial nature of setting one up as a scam, having a public-facing leadership team—especially one with a long history of actively fighting for online privacy and security—is the most concrete way a company can build trust.
Logging Policy – The privacy policy of ZenMate is not quite convincing from the point of view of the user. For instance, it claims that it collects personal data of users in various forms, including timestamps. This leaves the privacy of users vulnerable through a time-correlation attack. Moreover, the privacy policy is extremely lengthy and complicated, which further raises alarms as to the credibility of the claims of ZenMate as a zero-logging VPN.
IKEv2 (Internet key exchange version 2) is a tunneling protocol developed by Microsoft and Cisco, which is usually paired with IPSec for encryption. It offers a wide range of advantages, such as the capacity of automatically restoring VPN connection when Internet drops. It is also highly resilient to changing networks, which makes it a great choice for phone users who regularly switch between home WiFi and mobile connections or move between hotspots.
A firewall uses packet filtering to allow or disallow the flow of specific types of network traffic. IP packet filtering provides a way for administrators to define precisely what IP traffic is allowed to cross the firewall. IP packet filtering is important when private intranets are connected to public networks, such as the Internet. There are two approaches to using a firewall with a VPN server:

Speedify's drawbacks are that you can't connect manually (it's software-based), the cellular-data usage will cut into your carrier's monthly limit, and it's based in the U.S. and subject to search warrants. The free services is limited to one device, although you could just try to create new accounts for extra devices. But even free users can connect to any of the 1,000 or so VPN servers in 40-odd countries.

The solution is also able to bypass firewalls through stealth connections. Additional security is provided through an ad and malware blocker, which can be switched on and off. For those who enjoy torrenting, the software supports such process, with certain servers optimized for P2P networks. This is designed to keep high-speed browsing on other connections. However, the service warns users to keep torrenting activities confined to specific cities around the world.

There are many things a VPN must do well to be useful, and one of the most important ones is to be fast. You can likely get around many other shortcomings. But if your VPN is slower than a dial-up modem (for those of us who remember them), there will be trouble ahead. Not only will you be less likely to use your VPN, but you will probably also curse it every time you do. It’s money well wasted.

When we test VPNs, we generally start with the Windows client. This is often the most complete review, covering several different platforms as well as the service's features and pricing in depth. That's purely out of necessity, since most of our readers use Windows (although this writer is currently using a MacBook Air). We currently use a Lenovo ThinkPad T460s laptop running the latest version of Windows 10. We periodically upgrade to a newer machine, in order to simulate what most users experience.

IVPN was one of the fastest providers when we tested US servers using the Internet Health Test. Our budget pick, TorGuard, was faster, but it defaults to the less secure 128-bit encryption. Our non-VPN connection tested at roughly 300 Mbps down. Some tested services are not listed because connection failures prevented some of our tests from completing.

Given the aggressive pricing and marketing of other services that don’t measure up to our picks, IVPN’s most obvious downside may look like its price: At the time of this writing, the regular price for an annual IVPN subscription is $100 (about $8 per month). Promotions regularly bringing that down to $70 to $80 per year, but some services have regular pricing of half that. But you shouldn’t pay for a VPN you can’t trust, or one so slow or confusing that you avoid using it at all. We think IVPN’s combination of trust, security, and performance is worth the price. But if it’s too expensive for your needs, consider our budget pick instead.
It's not just the bad guys who are watching your traffic. Congress, for example, has granted internet service providers the right to sell anonymized metadata about your activities online. That's unfortunate, for a number of reasons. Fortunately, a VPN makes it much harder for even your ISP to monitor your activity and helps keep your privacy in your hands.
Most services provide perfectly adequate internet speed when in use, and can even handle streaming HD video. However, 4K video and other data-intensive tasks like gaming over a VPN are another story. Some VPN services, such as NordVPN, have started to roll out specialty servers for high-bandwidth activities. And nearly every service we have tested includes a tool to connect you with the fastest available network. Of course, you can always limit your VPN use to when you're not on a trusted network.

All that being said, some VPNs are still faster than others. During the process, we’ve tested over 45 VPN service providers to share our findings with you. Below you will find the top five fastest VPNs that offer feature-rich experience packed with the high speed. For sure, speed is one of the crucial things we look for before purchasing a VPN, especially when every other provider claims to be the fastest, so consider these providers who managed to cut our speed tests; you can thank us later!

There is only one reason the company got a 4.5 rating instead of a full five. That's because they do log connection information, although kudos for their clarity in explaining exactly what they do and don't log. We like that they offer a 30-day refund policy.  They got bonus points because, important for some of our readers, PureVPN supports bitcoin payments.That said, if you don't mind the slight dings on privacy and refunds, you're going like their blazing fast performance. Also, you can grow with them. If after some time, you need to scale up to business-level plans, the company has offerings for growth. Pricing is middle-of-the-road,at $10.95 per month and $69.00 for three year's service.Finally, we like that PurVPN has both Kodi and a Chromebook solution called out right on their Web page. In addition, PureVPN earns the distinction of being the first VPN service we've seen to fully implement the GDPR.
Last on our fastest VPN list is OpenVPN, which is a blend of highly secured encryption keys, up to 256-bit session, and fast VPN nodes. It is an open source application that utilizes OpenSSL library SSLv3/TLSv1 protocols. OpenVPN uses both UDP and TCP protocols where UDP is faster while TCP is best known for breaking the firewalls. The downside of OpenVPN is that it doesn’t support any platform, but with the help of third-party softwares, you can install a fast VPN connection on your desired OS/Device.

Tunneling protocols such as PPTP and L2TP are implemented at the data-link layer of the Open Systems Interconnection (OSI) reference model and provide data security by helping to create secure tunnels. In contrast, the IPSec protocol is implemented at the network layer and helps secure data at the packet level. IPSec provides two security protocols: Authentication Header (AH) and ESP.

Buffered VPN doesn't disclose much about the size of its network, but the 30-day money back guarantee means that you can take their service for a test drive and really get a feel for how well it performs for you. The company lost a few points from us because they do keep some connection information. They gained points for their client support, unlimited bandwidth, and generous number of simultaneous sessions allowed.
When a VPN connection drops, you might just lose your connection. But because the internet is very good at routing around failures, what is more likely to happen is your computer will reconnect to the internet application, simply bypassing the VPN service. That means that -- on failure -- your local IP address may "leak out" and be logged by the internet application, and your data may be open to local Wi-Fi hackers at your hotel or wherever you're doing your computing.

Cost: PureVPN is much more affordable than most providers and gives a myriad of payment options, like credit card, PayPal, Alipay, CoinPayments, Cashu, Payment Wall, BlueSnap, and more. You can purchase a one-year plan for $5.41/month, a two-year plan for $3.54/month, or pay monthly for $10.95/month. PureVPN is also currently running special pricing of $2.92/month for a 3 year plan when you pay $105 every three years.
Jurisdiction – The British Virgin Islands (BVI) falls outside of the jurisdiction of European countries part of the “14 Eyes”. There are no data retention laws in the BVI, which makes it a perfect location that can be trusted for its user-friendly privacy laws. ExpressVPN rightly boasts its jurisdiction as it is one of the main attributes of the provider.

The Center for Democracy & Technology brought just such a complaint against one VPN provider last year, though no enforcement action has been announced. Many privacy sites suggest finding a VPN service outside the prying eyes of US intelligence agencies and their allies, but FTC protections could be an argument for finding one in the US so that there’s a penalty if it deceives its customers.
ZenMate has a lightweight app that is really simple to use. It offers good security and connects with any server of your choice almost instantly. The speeds remain fairly stable across servers and is faster than dozens of other VPNs. I would recommend its free browser extensions, as there are better premium apps available for lower rates than ZenMate.

Servers – The number of servers and geographical distribution of these servers is another important factor that determines the quality of a VPN. The greater the server network, the fewer problems you are likely to encounter such as overcrowded servers and downtime. A strong server infrastructure signifies a high standard of VPN performance standard.
In this approach, the firewall must be configured with input and output filters on its Internet and perimeter network interfaces to allow the passing of tunnel maintenance traffic and tunneled data to the VPN server. Additional filters can allow the passing of traffic to Web servers, FTP servers, and other types of servers on the perimeter network. As an added layer of security, the VPN server should also be configured with PPTP or L2TP/IPSec packet filters on its perimeter network interface as described in “VPN Server in Front of a Firewall” in this section.
As part of our research, we also make sure to find out where the company is based and under what legal framework it operates. Some countries don't have data-retention laws, making it easier to keep a promise of "We don't keep any logs." It's also useful to know under what circumstances a VPN company will hand over information to law enforcement and what information it would have to provide if that should happen.