Most Reliable Hosting Company Sites in March 2013

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 Datapipe FreeBSD 0.000 0.058 0.009 0.019 0.030
2 ServerStack Linux 0.000 0.026 0.051 0.103 0.103
3 iWeb Linux 0:00:00 0.005 0.079 0.066 0.134 0.134
4 GoDaddy.com Inc Windows Server 2008 0:00:00 0.005 0.092 0.069 0.303 0.617
5 Server Intellect Windows Server 2008 0:00:00 0.005 0.016 0.085 0.172 0.430
6 Swishmail FreeBSD 0:00:00 0.008 0.066 0.051 0.101 0.241
7 Kattare Internet Services Linux 0:00:00 0.008 0.148 0.126 0.252 0.520
8 Hyve Managed Hosting Linux 0:00:00 0.010 0.100 0.036 0.072 0.073
9 Pair Networks FreeBSD 0:00:00 0.013 0.186 0.059 0.121 0.461
10 www.cwcs.co.uk Linux 0:00:00 0.013 0.265 0.114 0.230 0.645

See full table

Datapipe was the most reliable hosting company in March 2013, with both the fastest average connection time and no failed requests. Even more impressive is its remarkable 100% uptime record, which now stretches back for more than 7 years, and its connection times are regularly among the fastest we see each month.

The second most reliable hosting company in March 2013 – also with no failed requests – was ServerStack. Since Netcraft started monitoring ServerStack in October 2012, their site has had an uptime record of 99.990%. The company's 100% uptime SLA offers 5% credit for every half hour of sustained downtime, although this excludes periods of scheduled maintenance and its only outage so far lasted just 24 minutes.

iWeb ranked third after failing to respond to only one request during the whole of March. This performance was closely followed by Go Daddy and Server Intellect, each of which also failed to respond to just one request, but demonstrated marginally slower connection times than iWeb. Go Daddy's appearance in fourth place came despite a series of distributed denial of service (DDoS) attacks against its European webhosting operations, based in the Netherlands, which caused some of its customers' websites to become temporarily unavailable.

The previous month's winner, Hyve Managed Hosting, ranked eighth this time with three failed requests, but demonstrated very good average connection and total response times. These metrics are purportedly taken into account by Google's search algorithms, resulting in better rankings. Hyve's customers can gain similar advantages by using its high speed cloud platform with "light-speed" disk access, which allow its virtual servers to outperform traditional dedicated servers.

Datapipe runs its website on FreeBSD, which was also used by two other top-ten hosting companies during March: Swishmail and Pair Networks. Two sites were using Windows Server 2008, while the remaining five – including ServerStack – used Linux.

Netcraft measures and makes available the response times of around forty leading hosting providers' sites. The performance measurements are made at fifteen minute intervals from separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

From a customer's point of view, the percentage of failed requests is more pertinent than outages on hosting companies' own sites, as this gives a pointer to reliability of routing, and this is why we choose to rank our table by fewest failed requests, rather than shortest periods of outage. In the event the number of failed requests are equal then sites are ranked by average connection times.

Information on the measurement process and current measurements is available.

Most Reliable Hosting Company Sites in February 2013

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 Hyve Managed Hosting Linux 0:00:00 0.007 0.164 0.084 0.172 0.174
2 Kattare Internet Services Linux 0:00:00 0.007 0.111 0.103 0.207 0.455
3 Netcetera Windows Server 2012 0:00:00 0.010 0.025 0.071 0.143 0.286
4 Pair Networks FreeBSD 0:00:00 0.017 0.144 0.038 0.078 0.253
5 Datapipe FreeBSD 0:00:00 0.024 0.071 0.016 0.032 0.049
6 Hosting 4 Less Linux 0:00:00 0.024 0.064 0.059 0.120 0.170
7 XILO Communications Ltd. Linux 0:00:00 0.024 0.154 0.071 0.451 0.619
8 www.hostway.ro Linux 0:00:00 0.024 0.524 0.154 0.473 0.795
9 New York Internet FreeBSD 0:00:00 0.027 0.091 0.031 0.691 0.835
10 iWeb Linux 0:00:00 0.027 0.062 0.055 0.111 0.111

See full table

In its third month being publicly monitored by Netcraft, Hyve Managed Hosting had an almost perfect record: only two requests failed out of the 30,000 requests we made in February. www.hyve.co.uk is served by nginx, a web server well-known for its performance. Hyve's primary data centre is in Global Switch London 2, a well-located modern facility in London's Docklands, close to key business centres. Hyve specialise in Cloud, Dedicated, and Secure FTP hosting, with clients including British Airways, Tesco, and American Express.

Kattare Internet Services also had just two failed requests in February, but was ranked in second place by using the average connect time as the tie-breaker. Kattare — a Java specialist based in Oregon — has been monitored by Netcraft since October 2003. Kattare, named for Kättare (Swedish for "heretic"), is a keen advocate of open-source solutions including FreeBSD and Linux: more than 97% of the web-facing computers found at the hosting company are powered by Linux.

Netcetera, up from 8th place in January to 3rd in February, is the only hosting company with a site hosted on Windows in the top 10: the remainder, where known, are all powered by Linux or FreeBSD. Netcetera has data centres in London and the Isle of Man, a jurisdiction which welcomes online gambling, linked by a comprehensive network.

Datapipe, Hosting 4 Less, XILO, and Hostway Romania all had seven failed requests, split only by average connect time: Datapipe's impressive connect time, 16ms, is evidence of the benefits of their globally disperse hosting platform. February was only the second month where Hostway.ro has been in the top 10, only three months after their first appearance in the top 10 in November 2012.

Netcraft measures and makes available the response times of around forty leading hosting providers' sites. The performance measurements are made at fifteen minute intervals from separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

From a customer's point of view, the percentage of failed requests is more pertinent than outages on hosting companies' own sites, as this gives a pointer to reliability of routing, and this is why we choose to rank our table by fewest failed requests, rather than shortest periods of outage. In the event the number of failed requests are equal then sites are ranked by average connection times.

Information on the measurement process and current measurements is available.

March 2013 Web Server Survey

In the March 2013 survey we received responses from 631,521,198 sites.

Microsoft showed a noticeable gain of 9M sites this month, increasing its market share by 1.42 percentage points to 18.01%. Much of this growth was seen at Go Daddy, which alone gained 2.6M sites powered by Microsoft web servers. Microsoft also fared well amongst the top million busiest sites, where its market share grew by 0.74 percentage points to 13.60%, increasing its narrow lead over its closest rival, nginx.

More than 130,000 of the sites in Netcraft's survey are hosted on Microsoft's Windows Azure cloud platform, but not all are running Microsoft web servers: Since Microsoft Open Technologies launched its VM Depot preview in January, more than 100 ready-to-use images have been added to the community-driven catalogue of virtual machines. This makes it easier for customers to deploy Linux-based images running preconfigured applications and frameworks such as WordPress, Joomla!, Drupal, Django and MongoDB. The majority of these images are based on Ubuntu Linux, and many of them use Apache and PHP to serve their content.

nginx also saw a reasonable gain in market share this month, with an additional 4.4M sites taking its share up by 0.68 percentage points to 13.53%. The most recent development release of nginx (1.3.13) introduced support for proxying WebSocket connections – an HTML5 technology which provides full-duplex communications between a browser and a web application over a single TCP connection. WebSockets are supported by all modern desktop browser software, for which the protocol specification defines two URI schemes: ws: for unencrypted connections, and wss: for secure ones. The development of WebSocket support in nginx was sponsored by CloudBees and Apcera, who will both be making use of the new feature in their own services.

nginx performed less well amongst the top million sites, where it had looked set to overtake Microsoft this month. Instead, a net loss of 910 nginx sites resulted in its share falling to 12.72%.





DeveloperFebruary 2013PercentMarch 2013PercentChange
Apache344,915,10554.68%341,021,57454.00%-0.68
Microsoft104,647,42516.59%113,712,29318.01%1.42
nginx81,074,69412.85%85,467,55513.53%0.68
Google22,717,9843.60%22,605,6463.58%-0.02
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Phishing by proxy

Netcraft's toolbar community has reported an increase in the deployment of malicious scripts which direct webmail and online banking traffic through rogue proxy servers. These proxies allow attackers to steal usernames and passwords when forms are submitted, or use victims' cookies to hijack already-authenticated sessions.

The attacks rely on malicious proxy auto-config (PAC) scripts, which are remotely hosted and instruct a victim's web browser to proxy certain requests according to the specified configuration. Other requests are left untouched and end up being transmitted directly to the intended websites. The selective behaviour could perhaps be an attempt to limit the amount of traffic an attacker would need to process to extract sensitive information; alternatively, it could be an attempt to make detection more difficult — the results from services such as whatismyip.com may not be indicative of whether or not traffic was being intercepted.

Part of a malicious PAC script, which uses a proxy server hosted in Brazil

The PAC script shown above defines a JavaScript function – FindProxyForURL(url, host) – which is called by the browser. The full implementation of this function lets the attacker specify which URLs or hostnames should be requested directly, and which should be proxied. In the above example, requests to Banco do Brasil's website will be transmitted via the attacker's proxy server.

By using the Web Proxy Autodiscovery Protocol, a correctly positioned attacker could plausibly trick victims into using his phishing proxy without their knowledge. Although this feature is not enabled by default, many corporate environments may enable it in order to reduce the administrative overhead of manually configuring employees' laptops and other mobile devices to use proxies. If these devices are subsequently connected to an untrusted wireless network – which is controlled by an attacker – the WPAD discovery process would provide the attacker with a mechanism through which he can introduce arbitrary proxy scripts into browsers.

Alternative methods of attack include somehow enticing users to manually edit their proxy settings (perhaps by falsely claiming that it would result in performance benefits), or manipulating the settings via malware running on the user's computer. Similar malware-driven attacks have been around since 2008 and offer the attacker the additional advantage of being able to ensure that the malicious proxy settings cannot be tampered with.

Previous attacks using this technique originally targeted customers of Brazilian banks, but the fraudsters have since widened their scope and now also proxy traffic destined for webmail services such as Hotmail and Gmail, American banks, and one of the world's most popular phishing targets – PayPal.

To mitigate such attacks, it would be wise to avoid using automatic proxy detection settings on untrusted networks, and to also ensure your browser's automatic proxy configuration URL does not contain an unexpected address.

Most Reliable Hosting Company Sites in January 2013

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 Datapipe FreeBSD 0:00:00 0.000 0.022 0.016 0.033 0.051
2 Qube Managed Services Linux 0:00:00 0.000 0.025 0.025 0.049 0.050
3 www.uk2.net Linux 0:00:00 0.003 0.147 0.089 0.183 0.202
4 New York Internet FreeBSD 0:00:00 0.006 0.058 0.016 0.648 0.727
5 Kattare Internet Services Linux 0:00:00 0.006 0.236 0.089 0.180 0.382
6 www.logicworks.net Linux 0:00:00 0.009 0.039 0.022 0.354 0.403
7 Server Intellect Windows Server 2008 0:00:00 0.009 0.023 0.060 0.125 0.305
8 Netcetera Windows Server 2012 0:00:00 0.009 0.016 0.078 0.167 0.327
9 www.codero.com Linux 0:00:00 0.012 0.120 0.049 0.306 0.536
10 www.memset.com Linux 0:00:00 0.015 0.082 0.082 0.162 0.330

See full table

Datapipe had the most reliable website of all monitored hosting providers, responding to every single request made by Netcraft from its 11 monitoring points distributed across North America and Europe. Datapipe.net achieves such rapid average connection times — meaning that it often wins the top spot even when otherwise tied on failed requests — by serving content from the server topologically closest to the client. Datapipe's Stratosphere platform is available in five global data centres allowing its clients to benefit from similar performance.

Qube, ranked second this month, also with an exemplary record, with no failed requests recorded but a slightly longer average connection time. Qube has a number of notable clients, including both BetFair, an online gambling exchange, and blinkbox, a video streaming service in the UK, which trust it to provide a dependable network from its three data centres in London, New York, and Zurich.

UK2.net finished in third place, having just a single failed request. One of UK2.net's flagship brands, VPS.net, released a newly redesigned website and logo on the last day in January. At the same time, UK2.net also announced a set of new promises for VPS.net customers including a 99.9% SLA for unmanaged customers and 100% for those with managed services.

Server Intellect are joined in the top ten this month by a fellow Windows-based hosting provider, Netcetera, appearing in the top ten for the 57th time, but the first time since September 2012.

Netcraft measures and makes available the response times of around forty leading hosting providers' sites. The performance measurements are made at fifteen minute intervals from separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

From a customer's point of view, the percentage of failed requests is more pertinent than outages on hosting companies' own sites, as this gives a pointer to reliability of routing, and this is why we choose to rank our table by fewest failed requests, rather than shortest periods of outage. In the event the number of failed requests are equal then sites are ranked by average connection times.

Information on the measurement process and current measurements is available.

February 2013 Web Server Survey

In the February 2013 survey we received responses from 630,795,511 sites.

Both Apache and Microsoft IIS were used on fewer sites this month, losing more than five million hostnames between them. Conversely, nginx grew its market share to 12.85%, serving 1.4 million more hostnames than last month. Amongst the million busiest sites, nginx is now almost neck-and-neck with Microsoft IIS — both have a market share of just under 13% and there are now fewer than 500 individual sites separating them.

Tengine, an nginx derivative maintained by Taobao, a large Chinese internet retailer, is now used on almost 4 million hostnames, including at the Internet Archive. Alibaba, the parent company of Taobao, has the second largest number of hostnames in China and accounts for more than 11% of the hostnames we find in China. Though China accounts for 19% of the world’s population, only 5.8% of the world's websites are hosted in China. Microsoft leads the way in China, with 38% of Chinese-hosted sites using IIS; just 26% use Apache, while usage of nginx — 19% — is significantly above-average.

Taobao is a magnet for Phishing attacks — Netcraft is currently blocking almost six thousand URLs targeting Taobao customers. After Facebook, Taobao.com is one of the busiest websites powered by PHP and also makes heavy use of JavaScript, though not using one of the more popular frameworks, instead using an open-sourced in-house developed library, KISSY.





DeveloperJanuary 2013PercentFebruary 2013PercentChange
Apache348,119,03255.26%344,915,10554.68%-0.58
Microsoft106,619,17716.93%104,647,42516.59%-0.34
nginx79,640,47212.64%81,074,69412.85%0.21
Google22,573,8583.58%22,717,9843.60%0.02
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