The list of best and worst places for solo travel was chosen based on responses of solo travelers on Reddit, an American social news aggregation and discussion website.
"I would say Hanoi is one of the best cities for solo travel, and it's the best option in Southeast Asia. The city has charm, culture, hospitality, and affordable prices, whereas other urban hubs like Bangkok and Kuala Lumpur are very heavily modernized," a solo traveler commented.
"In Hanoi, there are many vibrant hostels filled with backpackers near the French Quarter and its beautiful architecture."
Ireland, the Netherlands, Argentina and New Zealand were also recommended as the best destinations for solo travel while India, Paris, Egypt and South Africa were deemed the worst place to travel alone due to safety concerns.
Vietnam has several times been hailed as the best place to travel alone by international magazines.
Last year, Australia-based travel magazine Lonely Planet recommended Vietnam in a list of 10 best destinations for lone travelers thanks to its rich cuisine.
From March 15, Vietnam will reopen inbound and outbound tourism under new normal conditions, with foreign tourists allowed to tour the country freely.