When a web server receives too many requests within a short period of time, it returns a ‘429 Too Many Requests’ error message. This status code is used by the server to indicate that it has reached its rate limit for receiving HTTP requests.
The primary cause of this issue can be due to malicious activities such as automated scripts or bots attempting to overwhelm the server with traffic. However, in many cases, legitimate users may also inadvertently trigger this response.
To resolve this problem, users need to revisit their request frequency and adjust their behavior accordingly. This might involve reducing the number of requests made per minute, hour, or even day. Alternatively, content delivery networks (CDNs) and caching mechanisms can be implemented to distribute traffic across multiple servers, thereby reducing the load on individual machines.
Web developers are also advised to take preventative measures such as adding headers that specify the rate limit, employing IP blocking techniques for malicious users, and utilizing advanced security software to monitor server activity.
Source: https://www.cbssports.com/nfl/news/nfl-week-18-odds-predictions-expert-picks-best-bets-teasers-survivor-picks-where-to-watch-every-game