A DDoS attack, or distributed denial of service attack, is an attempt to make a computer or network resource unavailable to its intended users. DDoS attacks are often carried out by flooding the target with a large number of requests, causing it to become overwhelmed and unable to respond.
There are a number of ways to check if you are under a DDoS attack. One common method is to use a website or service that monitors your website’s traffic. These services can alert you if there is a sudden increase in traffic, which could be an indication of a DDoS attack.