There are two types of protection available:

1) Filtering of malicious traffic at the application layer (L7 OSI) for hosting and VPS. This option enhances our basic DDoS protection that is included for free in each hosting package. Once activated, the filtering applies to all the levels of the OSI model that are important for cybersecurity, from L3 to L7.

2) Fine-tuning DDoS protection filters for "non-site" resources on VPS. This option is applicable for various online platforms, electronic trading platforms, and services such as corporate and gaming servers, file storage, databases, VPN servers, forex trading platforms, payment and mail services.

Regarding the protection of trading platforms and in particular the platform for trading on the Forex exchange:
MetaQuotes has only recently begun deploying DDoS protection for its flagship MetaTrader 5 platform. Cloudflare's global network and "Cloudflare Spectrum" solution for brokers prevents disruptions caused by malicious traffic while allowing normal traffic to pass through.
In other words, the use of the latest trading software is of utmost importance in the stock exchange business.

Building distributed systems is a whole art that allows you to spread requests across different nodes of a single system if some servers have become unavailable. All information is duplicated, the servers are physically located in Data centers of different countries. This approach makes sense to use only for large projects with a large number of users or high requirements for uninterrupted access — banks, social networks.If the server does not have reliable protection or the measures taken have not yielded results — cut the ropes.All DDoS traffic comes from a single provider and a backbone router, so you can block everything by connecting to a backup Internet connection line. The method is effective until you are discovered again.

Protection means are divided into local, cloud, and hybrid solutions. Local solutions can be both software and hardware and are used by large telecom operators and data centers that offer anti-DDoS services to their customers.
Cloud solutions offer similar protection features and also provide technical support and protection from bot attacks. Hybrid solutions combine on-premise and cloud solutions for optimal protection.

There are two connection formats: symmetric and asymmetric DDoS protection. Symmetric protection is more effective but expensive and causes delays. Asymmetric protection is often more complex and does not filter all attacks.

Proper connection and choosing a reliable web provider with expertise in anti-DDoS issues are critical to effective protection. Additionally, the choice of protection tools should consider the necessary range of protection functions required for the desired level of security.