Revenue coming into hotel search service Trivago was almost obliterated between April and June, with the brand bracing for a 93% collapse from the same period 12 months prior.
Total revenue across the company fell from €223.7 million in Q2 2019 to €16.1 million in the corresponding quarter of this year.
This period coincided with a wholesale shutdown of the travel industry as countless major markets for Trivago imposed lockdowns on citizens and the airline industry ground to a halt.
The company posted an adjusted EBITDA loss figure of €14.4 million for Q2, compared to a positive €18.8 million in Q2 2019.
Referral revenue in each of the brand's identifiable markets was down more than 90%, with its European segment experiencing the worst fall at 95% to €4.9 million.
Income from each of the company's referred hotel leads also fell dramatically. Overall, across each of its three markets (including the Americas and Rest Of World), revenue per qualified referral fell by 65% from €1.67 to €0.59.
Trivago says as lockdowns have started easing in some countries the brand has experienced "significant increase" in traffic, in particular in Germany, some U.S. states and New Zealand.
In a statement, it says: "As travel demand is highly correlated with the health situation in the respective region, the recent increase in new COVID-19 cases globally reminds us that recovery will be a long unpredictable process that will impact our business."
The reemergence of infections in some markets in recent weeks has caused "significant uncertainty" for users and advertisers, it says.
"A significant share of bookings that are currently being made are freely cancellable, and many advertisers continue to be concerned about the potential that second waves could require them to refund bookings made on their websites.
"Even as many advertisers have begun to re-engage in marketing activities, including on our platform, many remain very cautious about increasing their marketing spend."
The full-year outlook is likely to see 2020 revenue come in at less than half of 2019's, including a warning of a significant loss for the year.