Most Reliable Hosting Company Sites in April 2013

Rank Performance Graph OS Outage hh:mm:ss Failed Req% DNS Connect First byte Total
1 Swishmail FreeBSD 0:00:00 0.000 0.106 0.062 0.124 0.267
2 INetU Windows Server 2008 0:00:00 0.000 0.125 0.073 0.236 0.454
3 iWeb Linux 0:00:00 0.003 0.127 0.071 0.142 0.142
4 Server Intellect Windows Server 2008 0:00:00 0.003 0.074 0.092 0.185 0.464
5 Midphase Linux 0:00:00 0.003 0.215 0.109 0.222 0.338
6 Qube Managed Services Linux 0:00:00 0.006 0.100 0.046 0.093 0.093
7 Bigstep Linux 0:00:00 0.006 0.266 0.071 0.143 0.143
8 Hyve Managed Hosting Linux 0:00:00 0.006 0.252 0.074 0.145 0.151
9 Datapipe FreeBSD 0:00:00 0.009 0.068 0.016 0.032 0.049
10 Pair Networks FreeBSD 0:00:00 0.016 0.231 0.077 0.157 0.486
See full table

Swishmail had the most reliable hosting company site in April 2013, with no failed requests. Swishmail has a presence in three New York data centres which proved to be resilient when Swishmail stayed online in October whilst being hit by Hurricane Sandy, despite New York being in the centre of much of the damage. Swishmail offers a variety of managed web hosting plans in addition to its core service of enterprise-grade email hosting. Swishmail has been monitored by Netcraft since April 2007.

In second place is INetU which also had no failed requests, but it missed the top spot by just 11ms due to using the average connect time as the tie-breaker. INetU offers dedicated managed hosting services and cloud hosting services from ten data centres in the US and Europe including a new data centre in Seattle. Netcraft has been monitoring INetU since June 2003.

iWeb is in third place again following last month's success, it narrowly missed second place by having a single failed request. iWeb is based in Montréal where it has four data centres.

Newcomers Bigstep and Midphase have made their debut top 10 entries, after being monitored for one month and six months respectively. Hyve placed 8th this month, its third appearance since Netcraft began monitoring it in November having maintained 100% uptime over 5 months.

Swishmail, April's most reliable hosting company, runs its site on FreeBSD. Two other sites in this month's top ten are running FreeBSD – Datapipe, which was top last month and has an impressive 100% uptime over 7 years, and Pair Networks. Both INetU in second place, and Server Intellect in fourth place, are running Windows Server 2008. The remaining five – including iWeb in third place – use 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.

OCSP Server Performance in March 2013

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 ocsp.starfieldtech.com Linux 0:00:00 0.003 0.076 0.024 0.043 0.043
2 ocsp.verisign.com Citrix Netscaler 0:00:00 0.006 0.051 0.081 0.162 0.162
3 ocsp.thawte.com Citrix Netscaler 0:00:00 0.006 0.041 0.083 0.164 0.164
4 ocsp.godaddy.com Linux 0:00:00 0.015 0.161 0.025 0.044 0.044
5 ocsp.startssl.com/sub/class4/server/ca Linux 0:00:00 0.018 0.068 0.011 0.056 0.056
6 evsecure-ocsp.verisign.com Citrix Netscaler 0:00:00 0.018 0.228 0.082 0.163 0.163
7 ocsp.trendmicro.com/tmca Citrix Netscaler 0:00:00 0.018 0.050 0.099 0.200 0.201
8 evintl-ocsp.verisign.com Citrix Netscaler 0:00:00 0.024 0.261 0.082 0.162 0.162
9 ocsp.startssl.com/sub/class2/server/ca Linux 0:00:00 0.027 0.049 0.011 0.057 0.057
10 ocsp.xi.tcclass2-ii.trustcenter.de Linux 0:00:00 0.027 0.199 0.090 0.197 0.197

See full table

The Online Certificate Status Protocol (OCSP) is an alternative method to Certificate Revocation Lists (CRLs) for obtaining the revocation status of an individual SSL certificate. Fast and reliable OCSP responders are essential for both Certificate Authorities (CAs) and their customers — a slow OCSP response will introduce an additional delay before many browsers can start sending and receiving encrypted traffic over an HTTPS connection.

Starfield Technologies, a Go Daddy brand, had the most reliable OCSP responder last month with only a single failed request and an average connection time of 24ms. Starfield Technologies was founded in 2003 as the technology research branch of Go Daddy. Go Daddy customers have the option to choose which issuing organization to use when buying an SSL certificate. Although both Go Daddy and Starfield appear to share the same OCSP responder infrastructure, ocsp.godaddy.com had five failed requests, however this was still fewer than StartCom, Symantec, and Trend Micro. Both Go Daddy and Starfield issue certificates in all three certificate assurance categories: Domain Validation (DV), Organisation Validation (OV), and Extended Validation (EV). Starfield is most prominent in the EV sector — more than 15% of all EV certificates issued within the group are issued by Starfield — but it remains only a small part of Go Daddy's SSL certificate business: Starfield accounts for just 10% of certificates issued.

StartCom had the shortest average connect time (11ms) of all monitored CAs last month after having moved its OCSP infrastructure at the end of February. StartCom, as well as Entrust, now delivers its OCSP responses via the Akamai CDN (Content Delivery Network), reducing the OCSP connection overhead to a minimum by serving content from as topologically close as possible to the client. GlobalSign is a CloudFlare evangelist, using CloudFlare's CDN platform for its OCSP and CRL infrastructure as well as their own corporate website.

Many of the monitored OCSP responders are served by Citrix Netscaler devices. Citrix Netscaler is a hardware appliance that provides, amongst other features, load balancing and firewall functions. The use of such load balancing technology is no surprise — a single certificate on a popular site that does not use OCSP stapling could generate a significant number of OCSP requests, causing a CA's responder to experience high volumes of traffic.

In many circumstances each connection to an HTTPS site could trigger multiple OCSP requests: a request for the server's certificate and one for each intermediate certificate. OCSP responses are typically valid for a week, so some caching is possible. Caching can reduce both the burden on OCSP responders and increase the perceived performance of HTTPS websites to users, but is limited to repeat visits. OCSP Stapling is designed to improve performance by allowing the web site's server to “staple” the OCSP response to the TLS handshake, removing the need for the client to connect to the CA's OCSP responder.

Netcraft measures and makes available the OCSP and CRL end point response times of all the major Certificate Authorities (CAs). 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.

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.

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.

Most Reliable Hosting Company Sites in December 2012

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 ServerStack Linux 0:00:00 0.000 0.039 0.027 0.053 0.054
2 Swishmail FreeBSD 0:00:00 0.003 0.037 0.025 0.051 0.105
3 New York Internet FreeBSD 0:00:00 0.006 0.078 0.025 0.677 0.774
4 Server Intellect Windows Server 2008 0:00:00 0.006 0.035 0.066 0.132 0.328
5 Datapipe FreeBSD 0:00:00 0.009 0.102 0.015 0.032 0.049
6 Pair Networks FreeBSD 0:00:00 0.009 0.092 0.041 0.087 0.294
7 Virtual Internet Linux 0:00:00 0.009 0.072 0.061 0.182 0.321
8 www.uk2.net Linux 0:00:00 0.009 0.121 0.066 0.134 0.220
9 www.codero.com Linux 0:00:00 0.009 0.183 0.086 0.370 0.747
10 ReliableServers.com Linux 0:00:00 0.016 0.206 0.027 0.059 0.065

See full table

Serverstack had the most reliable hosting company site during December, responding to every request from our monitoring system. We have only been monitoring Serverstack for three months, but it has quickly established itself as one of the hosting company sites with the fewest failed requests over that period, despite being located in the area affected by Hurricane Sandy.

Swishmail (second), New York Internet (third), Datapipe (fifth) and Reliable Servers (tenth) are also hosted within the area in which Hurricane Sandy made landfall and the presence of five such affected companies in the top ten reinforces Datapipe founder Robb Allen’s assertion that the recent history of the US North East with events including grid blackouts, Hurricane Irene and the 9/11 attacks has helped improve the resilience of the internet connectivity and hosting industry in that area.

December saw New York Internet (third) named NJBIZ's "Emerging Business of the Year" for 2012. NJBIZ profiled New York Internet's New Jersey datacentre in 2011, and praised the company's renovation and retrofitting of an older property in order to accommodate modern technology.

December's top ten list is dominated by FreeBSD and Linux, with the exception of Windows specialists Server Intellect (fourth) who have the only site running Windows. Server Intellect, which now offers Windows Server 2012 as standard on all dedicated and cloud servers, was second last month and regularly features among the top ten most reliable hosting company sites.

During December we added a new performance measurement point hosted at Webair's datacentre, in Amsterdam, bringing the total number of measurement points to 11.

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.