These files are provided to help users test their download speeds from our servers. You can also run a speed test however downloading files can be easier to compare with real usage or where Java / Flash is unavailable.
Please be aware that downloading these files will count towards your download usage allowances imposed by your broadband provider and the large files may use up a large proportion of this if you only have a small allowance (1GB - 3GB for example). We suggest only testing the large files if you have a connection speed faster than 10 Mbps.
Instructions
Click the coloured label of the file you want to download to start the download process. If the download does not start you may have to right click on the size and select "Save Target As" (seehere for an example).
Click the coloured label of the file you want to download to start the download process. If the download does not start you may have to right click on the size and select "Save Target As" (seehere for an example).
These files will automatically use IPv6 if available, but you can select the IPv4 or IPv6 links to force it as required.
| File Size | Example / Port | Time To Download | |
|---|---|---|---|
 | Very Large File 1 GB (1,024 MB) | High-quality movie download | 70mins @ 2 Mbps 17mins @ 8 Mbps 5mins @ 30 Mbps 3mins @ 60 Mbps 75secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Large File 0.5 GB (512 MB) | Movie download; game demo | 35mins @ 2 Mbps 9mins @ 8 Mbps 3mins @ 30 Mbps 70secs @ 60 Mbps 35secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Large File 200 MB | 45 minutes of TV from BBC iPlayer; large operating system update | 14mins @ 2 Mbps 4mins @ 8 Mbps 1mins @ 30 Mbps 27secs @ 60 Mbps 14secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Medium File 100 MB | High-quality MP3 audio CD download; 2 minute HD (720p) movie trailer | 8mins @ 2 Mbps 2mins @ 8 Mbps 27secs @ 30 Mbps 14secs @ 60 Mbps 7secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Medium File 50 MB | MP3 audio CD download | 4mins @ 2 Mbps 1min @ 8 Mbps 14secs @ 30 Mbps 7secs @ 60 Mbps 4secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Small File 20 MB | Standard quality movie trailer | 80secs @ 2 Mbps 20secs @ 8 Mbps 6secs @ 30 Mbps 3secs @ 60 Mbps 1.5secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Small File 10 MB | A 30 second video clip | 40secs @ 2 Mbps 10secs @ 8 Mbps 3secs @ 30 Mbps 1.5secs @ 60 Mbps 0.7secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
 | Extra Small File 5 MB | A high quality 5 minute MP3 music file | 20secs @ 2 Mbps 5secs @ 8 Mbps 1.5secs @ 30 Mbps 0.7secs @ 60 Mbps 0.4secs @ 120 Mbps |
| IPv4 Port: 80, 81, 8080 IPv6 Port: 80, 81, 8080 | |||
Please note that current broadband connections have a speed in the range of approximately 0.5 to 20 Mbps (megabits per second) and there are 8 bits in a Byte.
These files are made of random data, and although listed as zip files, will appear to be corrupt if you try and open them. MD5SUMS are available for these files.
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