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.

First Option: Filtering of Malicious Traffic at the Application Layer (L7 OSI)

This one is all about protecting your websites and online services at the most advanced level – the application layer, which is the top layer in the OSI model (L7). Now, DDoS attacks can hit you at different layers of the OSI model, but the ones at L7 are particulary nasty. They target the specific functions of your applications, like login pages, checkouts, or any other dynamic content that requires server resources to process.

When you activate this kind of protection, it's not just covering L7. It goes through all the critical layers from L3 (network layer) up to L7. So basically, you're getting a comprehensive filter that looks at traffic coming into your server, filters out anything that looks suspicious or matches known attack patterns, and stops it dead in its tracks before it can cause any damage.

This option is particularly usefull if you're hosting websites or applications that interact a lot with users. For instance, e-commerce sites, forums, social networks, or content management systems (CMS) like WordPress or Joomla! It adds an extra layer of security on top of the basic DDoS protection that's already included in your hosting package.

Second Option: Fine-tuning DDoS Protection for "Non-Site" Resources on VPS

The second type is more specialized. It's aimed at protecting resources that aren't strictly websites, but are still critical components of your online infrastructure. Think about things like online trading platforms, corporate email services, VPN servers, gaming servers, or any other service that relies on steady, uninterrupted connectivity.

This option allows you to fine-tune your DDoS protection filters to suit the specific needs of these "non-site" resources. For example, a gaming server might need different filters compared to a corporate email service because they face different kinds of DDoS attacks. You can adjust the settings so that only legitimate traffic is allowed, and all the malicious stuff gets blocked.

By fine-tuning these filters, you're ensuring that the performance of your servers doesn't degrade during an attack, which is particularly crucial for services like payment processors, forex trading platforms, or databases that require real-time data processing.

Both of these DDoS protection options provide robust defenses against a wide range of attacks, but they're designed for different purposes. The first is for hosting and VPS that need comprehensive L7 protection, while the second is for those who have more specific, non-website resources that need tailored defense measures.

So depending on what you're running and how critical it is to your business, you might opt for one or the other, or even both to cover all your bases.