Ultrafast DarkLight Internet connections speed up Doncaster
Doncaster DarkLight
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DarkLight® future proofs Doncaster's Internet

Both businesses and schools in the modern day depend upon their Internet connectivity, and they need it to be as effective, reliable and flexible as possible. We're happy to be bringing Doncaster organisations DarkLight, a future proofed connectivity option designed to be the very last Internet connection you'll ever need to install.

DarkLight offers ultrafast, symmetrical connectivity, with both uploads and downloads starting off at 100 Mbps. You'll also be able to get even faster connectivity, with our packages including gigabit connectivity and a 10 Gbps option - some of the fastest Internet in the world.

Once you've had a DarkLight line installed, you'll be able to quickly upgrade your connection speed whenever you need to - with absolutely no extra construction required. With DarkLight, you'll always be able to get the performance you need - it's why our connections are completely future proofed.

Along with instantly upgradable, ultrafast performance, DarkLight offers complete reliability, with our connections including a 99.9% Service Level Agreement as standard.

SFSY Voucher Scheme

A recently-launched scheme to help speed up businesses across the Sheffield City Region, SFSY connectivity vouchers completely half the cost of bringing in ultrafast Internet for your business, potentially saving you thousands. Click through to find out more about the voucher scheme!

Doncaster DarkLight

On the map below, you'll see the area that our 32 KM dark fibre network from CityFibre covers in Doncaster, running from central Doncaster through Hexthorpe and other major areas - get in touch with our team at 0345 145 1234 today to find out more about DarkLight!

Wondering how DarkLight can help an organisation like yours? Check out the video to see how two great Leeds businesses have been using their DarkLight connections to expand their services and bring in more customers.

A map of our dark fibre network in Doncaster

DarkLight Speed Comparison

Wondering how the speeds DarkLight offers measure up in real-world situations? Click any of the boxes below for some demonstrations - keep in mind that these speeds are approximate, with several factors affecting file transfer speeds.

Approximate time to transfer 100 high quality photos (400 MB)

DarkLight - 10 Gbps

~0.3 seconds

DarkLight - Gigabit

~3.4 seconds

DarkLight - 100 Mbps

~34 seconds

Average UK downloads (2016) - 28.9 Mbps

~1 minute, 56 seconds

Average UK uploads (2016) - 3.7 Mbps

~14 minutes

Approximate time to transfer an HD film (4 GB)

DarkLight - 10 Gbps

~3.4 seconds

DarkLight - Gigabit

~34 seconds

DarkLight - 100 Mbps

~5 minutes, 44 seconds

Average UK downloads (2016) - 28.9 Mbps

~19 minutes, 45 seconds

Average UK uploads (2016) - 3.7 Mbps

~2 hours, 23 minutes and 10 seconds

Approximate time to transfer a full Blu-Ray disc (50 GB)

DarkLight - 10 Gbps

~43 seconds

DarkLight - Gigabit

~7 minutes, 9 seconds

DarkLight - 100 Mbps

~1 hour, 11 minutes, 35 seconds

Average UK downloads (2016) - 28.9 Mbps

~4 hours, 6 minutes and 50 seconds

Average UK uploads (2016) - 3.7 Mbps

~1 day, 5 hours, 49 minutes, 34 seconds

Approximate time to transfer an terabyte (1000 GB)

We've speeded up this comparison to 10 times the actual speed. However, the time estimates you'll see pop in are still accurate - with 10 Gbps DarkLight, you can upload or download a terabyte in about 15 minutes.

DarkLight - 10 Gbps

~14 minutes, 40 seconds

DarkLight - Gigabit

~2 hours, 26 minutes and 36 seconds

DarkLight - 100 Mbps

~1 day and 26 minutes

Average UK downloads (2016) - 28.9 Mbps

~3 days, 12 hours and 15 minutes

Average UK uploads (2016) - 3.7 Mbps

~25 days, 10 hours and 50 minutes

Multi-gigabit Doncaster Internet

Doncaster is one of the latest areas involved in our project to bring ultrafast, future-proofed Internet services to cities across the North. At the same time that we launch our network in Doncaster, we'll be launching Sheffield DarkLight City and a DarkLight network through Rotherham. We've ensured that our network runs through a number of key areas across Doncaster, letting us reach as many organisations as possible with our future-proofed Internet services.

If you want to find out more about how DarkLight can help you, either check out the rest of this website or give our team a call at 0345 145 1234. When you call, you can also register your interest in DarkLight, and we'll keep in touch with more information as we get nearer to launch.