Twitter still affected by networking error

Twitter suffered from some noticeable site availability issues last night, and is still running at a higher than usual latency this morning:

Twitter identified the cause of the incident as an "error with networking equipment", which caused the site to run noticeably slowly, sometimes even causing the fail whale to come out for a swim.

A few hours later, an update revealed that the networking problem had not quite gone away, although the site does appear to be fully functional now. Features such as searching, sidebar data and profile image uploads were temporarily disabled last night to try and stabilize the site's performance.

Netcraft's live uptime graphs for twitter.com can be viewed here.

Most Reliable Hosting Company Sites in May 2010

Rank Company site OS Outage hh:mm:ss Failed Req% DNS Connect First byte Total
1 New York Internet FreeBSD 0:00:00 0.011 0.155 0.085 0.182 0.441
2 INetU unknown 0:00:00 0.015 0.080 0.060 0.133 0.335
3 DataPipe FreeBSD 0:00:00 0.022 0.059 0.011 0.023 0.033
4 Multacom FreeBSD 0:00:00 0.022 0.219 0.082 0.164 0.396
5 Rackspace Linux 0:00:00 0.022 0.106 0.088 0.175 0.175
6 One.com Linux 0:00:00 0.026 0.369 0.083 0.166 0.166
7 www.navisite.com Linux 0:00:00 0.026 0.244 0.092 0.185 0.378
8 iWeb Technologies Linux 0:00:00 0.030 0.096 0.064 0.128 0.128
9 www.acens.com Linux 0:00:00 0.030 0.221 0.097 0.423 0.735
10 www.aruba.it Windows Server 2003 0:00:00 0.034 0.858 0.089 0.180 0.180
See full table

The most reliable hosting company site in May was New York Internet, responding to all but three of Netcraft's requests. It was served by Apache running on FreeBSD.

Established in 1996, New York Internet is located near Wall Street and maintains its own data centers. The company's core services include dedicated servers, colocation and virtual web hosting.

INetU came a close second with just four failed requests.

INetU is an enterprise managed hosting company located in Allentown, PA. They have been in business since 1996 and notably offer a 100% uptime service level guarantee. Managed services provided by INetU include MySQL and MS SQL database clusters, Exchange servers, virtualization and firewalls. Their clients include Fortune 500 companies such as Microsoft, Intel, Northrop Grumman and Canon.

Five of May's top ten most reliable sites used Linux, while three ran on FreeBSD and one on Windows Server 2003.

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.

Information on the measurement process and current measurements is available.

The Pirate Bay returns to the internet

Popular BitTorrent search engine The Pirate Bay has just come back online, around a day after it was apparently forced offline by a German court injunction filed a week ago.

The Motion Picture Association subsequently made a press release [pdf] about the injunction against CB3Rob Ltd & Co KG (Cyberbunker) and its operator, Mr. Sven Olaf Kamphuis, "restraining them from connecting The Pirate Bay site to the Internet".

However, the site is already back online — hosted at the same place as before — and now presents a defiant 'lolcat' message, presumably aimed at those who are trying to get the site shut down:

piratebayisback.jpg

The Pirate Bay publishes many of the legal threats it receives, but proudly boasts that no torrents have ever been removed from the site.

piratebayuptime.png

The Pirate Bay website runs Linux and uses the lighttpd webserver.

Most Reliable Hosting Company Sites in April 2010

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 DataPipe FreeBSD 0:00:00 0.015 0.031 0.027 0.057 0.083
2 GoDaddy.com Inc Windows Server 2003 0:00:00 0.023 0.161 0.092 0.196 0.781
3 New York Internet FreeBSD 0:00:00 0.027 0.106 0.051 0.113 0.312
4 iWeb Technologies Linux 0:00:00 0.031 1.187 0.063 0.127 0.127
5 www.dinahosting.com Linux 0:00:00 0.031 0.178 0.128 0.256 0.256
6 www.navisite.com Linux 0:00:00 0.035 0.353 0.102 0.683 0.896
7 www.netcetera.co.uk Windows Server 2003 0:00:00 0.039 0.084 0.050 0.107 0.212
8 Virtual Internet Linux 0:00:00 0.039 0.173 0.054 0.162 0.329
9 ServInt Linux 0:00:00 0.039 0.162 0.063 0.146 0.331
10 www.acens.com Linux 0:00:00 0.046 0.298 0.129 0.440 0.845

See full table

The most reliable hosting company site in April was DataPipe, once again responding to all but four 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.

The second most reliable hosting company site in April was GoDaddy, responding to all but six of Netcraft's requests.

GoDaddy is the world's largest domain name registrar, managing more than 40 million domains.

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.

Most Reliable Hosting Company Sites in March 2010

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 www.memset.com Linux 0:00:00 0.012 0.586 0.129 0.260 0.260
2 DataPipe FreeBSD 0:00:00 0.016 0.065 0.027 0.056 0.083
3 iWeb Technologies Linux 0:00:00 0.016 0.134 0.083 0.165 0.165
4 ReliableServers.com FreeBSD 0:00:00 0.016 0.250 0.083 0.197 0.337
5 INetU unknown 0:00:00 0.021 0.702 0.073 0.158 0.301
6 Swishmail FreeBSD 0:00:00 0.021 0.159 0.086 0.173 0.438
7 www.singlehop.com Linux 0:00:00 0.021 0.258 0.104 0.429 0.962
8 Hosting 4 Less Linux 0:00:00 0.025 0.116 0.091 0.186 0.474
9 Kattare Internet Services Linux 0:00:00 0.029 0.153 0.093 0.187 0.443
10 www.dinahosting.com Linux 0:00:00 0.029 0.121 0.130 0.258 0.258

See full table

Memset had the most reliable hosting company site in March, responding to all but three of Netcraft's requests.

Memset provides dedicated physical and virtual servers, all-inclusive managed hosting and cloud-computing services from their two data centres near Reading, UK. Memset uses Apache on Linux to run their own website.

The second most reliable hosting company site in March was DataPipe, responding to all but four 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 March were identified as running Linux and three as running FreeBSD. The operating system used by one of the top ten could not be identified.

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.

Most Reliable Hosting Company Sites in February 2010

Rank Company site OS Outage
hh:mm:ss
Failed
Req%
DNS Connect First
byte
Total
1 www.navisite.com Linux 0.000 0.779 0.033 0.552 0.656
2 DataPipe FreeBSD 0:00:00 0.005 0.397 0.035 0.061 0.091
3 INetU unknown 0:00:00 0.005 0.524 0.050 0.106 0.186
4 Hosting 4 Less Linux 0:00:00 0.011 0.428 0.105 0.220 0.560
5 www.singlehop.com Linux 0:00:00 0.016 0.205 0.052 0.342 0.570
6 www.dinahosting.com Linux 0:00:00 0.016 0.115 0.089 0.182 0.182
7 New York Internet FreeBSD 0:00:00 0.021 0.054 0.031 0.070 0.195
8 Virtual Internet Linux 0:00:00 0.021 0.617 0.078 0.210 0.443
9 www.memset.com Linux 0:00:00 0.021 0.616 0.080 0.160 0.160
10 Hostbasket Windows Server 2008 0:00:00 0.021 0.377 0.083 0.177 0.177

See full table

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.