Travalyst will vet more than 100 tourism-focused global certification bodies to assess whether they can be displayed on its partner platforms to bring sustainability information into mainstream and "help people make better travel choices".

These bodies will be assessed against several key criteria, validated by Travalyst’s independent advisory group, "to drive consistency in display of sustainability certifications across Travalyst’s partner platforms", ensuring "rigour and independence".

Criteria points include ensuring certification processes comprise a third-party audit that includes an on-site and/or online assessment of a provider’s claimed sustainable practices, and ensuring the standard upon which the certification is based is publicly available.

Travalyst’s partners span some of travel’s biggest names, including Amadeus, Booking.com, Expedia Group, Google, Skyscanner, Travelport, Trip.com Group, Tripadvisor and Visa.

Polly Lomas, Travalyst’s head of strategy and impact, said: “Travalyst aims to bring sustainability information to the mainstream to help people make better travel choices. People want to travel more sustainably and that all starts with having access to clear, consistent and credible information at scale.

"Creating a master list of certification bodies meeting the Travalyst criteria will help to improve the credibility of sustainability information in the accommodation sector, and credibility is key to driving trust.”