Singapore ranks as the world's fastest country with speeds of 55.13Mbps, with war-torn Yemen coming in last at an average speed of just 0.34Mbps.
This was discovered in a new finding conducted by data analysis and collection agency Cable.co.uk.
Singapore tops at number one while the war-stricken Yemen sits at the very last position.
Cable.co.uk analysed the data in a 12 month period up to May 10, 2017 by M-Lab, a partnership between New America's Open Technology Institute, Google Open Source Research, Princeton University's PlanetLab, and other supporting partners, and compiled by Cable.co.uk.
The five fastest countries have download speeds around 40 times faster than the five slowest. Singapore tops the table at 55.13Mbps, compared to Yemen, which is more than 162 times slower at just 0.34Mbps.
Comparing both countries, downloading an HD movie of 7.5GB in size would take 18 minutes and 34 seconds at the average speed experienced in first-placed Singapore, while it would take over two days in last-placed Yemen.
Countries like the US and UK ranks at 21 and 31 respectively.
20 of the top 30 fastest-performing countries are located in Europe, with seven in Asia, two in North America and one in Oceania.
By contrast, 17 of the 30 slowest-performing countries are located in Africa, with seven in Asia, six in South America and one in Oceania.
139 countries failed to achieve average speeds above 10Mbps, a speed deemed by telecoms watchdog Ofcom to be the minimum required to cope with the needs of a typical family or small business.
Altogether, 189 countries were sampled, other countries were excluded due to their low sample sizes.