[2][3][4] It is available in 31 languages and covers subjects such as government, world population, economics, society, media, environment, food and water, energy, and health.

The site was hit with a DDoS attack, and was then hacked a few days later, resulting in incorrect information being shown on its COVID-19 statistics page for approximately 20 minutes.

The hacked site showed a dramatic rise in COVID-19 cases in Vatican City, which caused panic among some users of social media.

Worldometer has faced some criticism over transparency of ownership, lack of citations to data sources, and unreliability of its COVID-19 statistics and live rankings.

[2] In April 2020, editors of the English Wikipedia decided that Worldometer's COVID-19 figures are often unreliable and should not be cited in any pages related to the pandemic.