ComputerTan.com - which went viral two months ago - claims it is a "revolutionary online tanning service."

The website appears to be devoted to sun worshippers who want to “look great in the office”.

And it promises sun-starved Brits a "free five-minute tan trial" by transmitting ultraviolet rays through their laptops and PC monitors.

It even advertises a downloadable application for mobile phone tanning.

But when users click to access the trial, bars from a sun-bed appear on the screen with a warning which reads: "Don’t be fooled - UV Exposure Can Kill."

Shocking photographs of skin cancers also flash up on the screen, alongside a link to Skcin.org - the cancer charity behind the hoax.