What are the advantages of booking a hotel online? Is it safe?

Advantages: 1, enjoy a lower price than the hotel front desk; 2. Give priority to booking to avoid delaying the trip because of finding a room. Disadvantages: Temporary cancellation of the itinerary, some hotels do not refund money or charge a part of the fee, but can not refund the money in full. Therefore, the best way is to think before booking. Do you really need a reservation? Secondly, the safest thing is to find a website that can be booked for free, that is, you don't have to pay any fees when booking, and then pay for it when you check in. There should be many such websites, and the most typical one I know is the Deep Travel Network. It's very convenient and famous! This is the home page of their website:/