Guaranteed excellence at all times
Completely Reliable Connectivity
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Ultrafast, Ultra-Reliable DarkLight Internet

Internet connectivity doesn't just need to be fast enough – it needs to be totally reliable, particularly for schools and businesses. Having your connection go down unexpectedly can completely change your plans for the day, costing you a lot of time and money.

With DarkLight, we've built an Internet connectivity option that reliably delivers world-class performance at all times. DarkLight's reliable enough that we include a 99.9% Service Level Agreement as part of your contract – that means we guarantee you'll have the equivalent of under 45 minutes downtime per month, at absolute most.

In practice, the majority of our customers don't experience any downtime across the year, due to the incredible amount of failover and provisioning we've built into our network, while our expert customer care team helps to quickly resolve any issues our customers have.

Because DarkLight is provided directly to you and not shared with anyone else, we're able to provide another level of reliability. When we advertise ultrafast speeds, we don't say you'll get 'up to' a certain speed – you'll always get the speed you pay for with DarkLight.

Reliable ultrafast connectivity backed up with 99.9% Service Level Agreements

More Facts on DarkLight Reliability

DarkLight is designed for complete reliability at absolutely all times, with uncontended lines delivering ultrafast, symmetrical speeds across the entire year. Read on for more information about the reliable performance that DarkLight delivers:


• DarkLight's ultrafast speeds start off at a full 300 Mbps, with other options including gigabit connectivity and an almost unmatched 10 Gbps level, all of which deliver the advertised speeds around the clock.

• Our award-winning customer service team is available through extended business hours, quickly working to resolve any issues you experience.

• Our core network experienced absolutely no downtime throughout 2014, 2015 and 2016.

• DarkLight's future-proof design ensures that you'll never have to worry about downtime when you're upgrading your connection – you can change the Internet speed you're receiving at practically any time.

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 - 300 Mbps

~11.3 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 - 300 Mbps

~1 minute, 55 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 - 300 Mbps

~23 minutes, 51 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 - 300 Mbps

~7 hours, 57 minutes and 13 seconds

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

Find out more about DarkLight Connectivity

We've built DarkLight from the ground up to be the last Internet connection you'll ever need to install. With world-class speeds available at all times, you'll never have to worry about your connection speed again, while our low prices significantly cut down on your costs.

If you're wondering what kind of difference DarkLight can make for your organisation, or want to know more about the features and advantages it offers, don't hesitate to get in touch with our team at 0345 145 1234!