NaviSite had the most reliable hosting company site in February, responding to all of Netcraft's requests.

NaviSite, providers of managed hosting and application management solutions, sold its Lawson/Kronos Managed Application Service business this month in order to "focus on providing Enterprise-class cloud computing for large organisations with complex environments". NaviSite uses Apache on CentOS to run its own website.

The second most reliable hosting company site in February was DataPipe, responding to all but one of Netcraft's requests.

DataPipe provides custom managed hosting solutions for businesses with complex Internet facing infrastructures with over 1,000 customers in seven data centres across the United States, Europe and China. DataPipe use Apache on FreeBSD to run their own website.

Six of the top ten in February were identified as running Linux, two as running FreeBSD and one running Windows Server 2008.

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.

Further information on the measurement process and current measurements are available.

The first month of 2010 saw The Planet and Hosting 4 Less have the most reliable hosting company sites. Both sites responded to all but one of Netcraft's requests in January.

The Planet provides dedicated servers, managed hosting and colocation services to more than 20,000 businesses. The company has more than 10 million websites in Netcraft's Hosting Provider Analysis and uses Windows Server 2003 to run its own website.

Hosting 4 Less offers a 99.9% uptime guarantee, with its own OC48 Sonet Ring connecting their secure data center to the internet. Hosting 4 Less has been running since 1998 and currently uses Apache on Linux to serve its own website.

Four of the most reliable hosting company sites in January were identified as running Linux, while three were using FreeBSD and one was using Windows Server 2003.

Netcraft measures and makes available the response times of fifty 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.

Further information on the measurement process and current measurements are available.

Amidst the heavy snowfall that is covering parts of southern England, National Rail’s website at www.nationalrail.co.uk has been unable to cope with the number of visitors eager to know which train services may be delayed or cancelled.

The website was unavailable yesterday afternoon and for most of this morning, with some respite overnight. The site is currently still unavailable, ironically preventing commuters from viewing National Rail’s Service Disruptions page.

Live performance graphs can be viewed here.

National Rail is the title used by the Association of Train Operating Companies, which runs the train services in Great Britain. Its website – when available – allows visitors to plan journeys, and view real time service information and fares.

It's possible that the performance problems over the past day may be attributable to the wrong type of snow, which has bedevilled British rail travellers before.

In the final month of 2009, Swishmail, iWeb Technologies and WestHost had the most reliable hosting company sites. All three sites responded to all but one of Netcraft's requests throughout December.

This is Swishmail's second consecutive appearance at the top; last month, it shared the glory with Verio. Swishmail's website is served by nginx on FreeBSD. This New York based company specialises in business email hosting, but also offers several web hosting plans, all of which include access to a webmail client and shared calendars.

iWeb Technologies' website is hosted on a Linux server in Canada, and offers dedicated, shared and colocation hosting as well as domain registration services. The company recently announced an annual revenue increase from $15M to $27M.

WestHost also uses Linux for its main site and hosts more than 70,000 other websites. Their services include shared web hosting, dedicated servers, reseller hosting and domain name registration. WestHost was acquired by UK2 Group in 2008, but continues to offer services under its own name.

Six of the most reliable hosting company sites in December were running Linux, and two were using FreeBSD. Netcetera once again provided the only Windows presence, with its site being served by Microsoft IIS 6.0 on Windows Server 2003.

Netcraft measures and makes available the response times of fifty 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.

Further information on the measurement process and current measurements are available.

Hosting 4 Less and Server Intellect had the most reliable hosting company sites in September 2009.