If you run a website, a shop, a game server or any online service, you will eventually run into the term DDoS. A DDoS attack sends a flood of requests or packets from a huge number of sources at one target to knock it offline. No data is stolen and no password leaks; the service simply stops, and for a business that is enough to cost sales, reputation and trust. This guide explains what DDoS protection is, the types of attack, what an anti-DDoS server does and how to choose well.
What DDoS actually is
DDoS stands for Distributed Denial of Service. "Distributed" is the key word: the attack does not come from one computer but from thousands or millions of infected devices, such as PCs, cameras and routers, under an attacker's control. This is called a botnet. Because the traffic arrives from everywhere, blocking a single IP does not help.
Motives include commercial rivalry, extortion, personal grudges in gaming, a smokescreen for another intrusion, or plain mischief. Game servers, online shops, exchanges and news sites are common targets.
Types of DDoS attack
Volumetric attacks (layers 3 and 4)
The attacker fills the inbound bandwidth of a server or data centre with traffic. UDP floods and DNS or NTP amplification are examples. The problem is not your software: the pipe is saturated. Only a network with the capacity to absorb and filter that volume can stop it.
Protocol attacks
These exploit protocol behaviour, for example a SYN flood that fills the half-open connection table and exhausts a firewall or the operating system. Less volume is needed but the impact on server resources is high.
Application-layer attacks (layer 7)
Requests that look like real users: repeatedly loading search, login or cart pages. Volume is low, but each request triggers heavy database work. They are harder to spot and call for smart filtering, rate limiting and sometimes browser verification.
What an anti-DDoS server does
"Anti-DDoS server" means a server that sits behind traffic-filtering infrastructure. Incoming traffic first passes through scrubbing, malicious traffic is identified and dropped, and only clean requests reach your server. Typical parts of such a service:
- High network capacity so a volumetric attack does not saturate the link.
- Automatic filtering based on abnormal patterns, without an admin writing rules by hand mid-attack.
- Protocol-aware rules, for instance for UDP-based games that generic filters break.
- Reporting and monitoring so you know what happened and for how long.
No service is "attack-proof". Every service has a ceiling, so judge it on transparency about capacity, coverage and behaviour under attack, not on slogans.
Who needs DDoS protection
- Game servers. Minecraft, FiveM and Counter-Strike communities are frequent victims. See our game server guide.
- Shops and business sites. Downtime in a sales season is direct loss.
- APIs and apps that customers or mobile apps depend on.
- Financial and crypto services, where interruptions erode trust.
- Anyone already attacked once or with an aggressive competitor.
How to choose a protection service
Capacity and coverage
Ask whether coverage is volumetric only or includes layer 7. Compare the stated number with real capacity and with what happens above the limit: is the target silently null-routed, or does filtering continue?
Fit with your workload
A website differs from a game server. For web, a reverse proxy or CDN is often enough; for games and non-HTTP services you need network-level protection for TCP and UDP.
Added latency
Filtering should not noticeably raise ping, which matters especially for games. Measure latency after activation.
Reaction speed
Is filtering automatic or does someone configure it by hand? Attacks can start at midnight.
Hiding the origin IP
If the real server IP leaks, an attacker can bypass protection and hit it directly. Keep the origin behind the service and check other exposures such as a mail subdomain.
Support
During an attack a fast human answer is valuable. Ask what support is available at that moment.
Common mistakes
- Thinking a basic firewall is enough. A server firewall acts only after traffic arrives; if the link is full, it is too late.
- Relying on a CDN alone while the origin IP is exposed.
- No rate limits in the application on sensitive routes such as login and search.
- Choosing only on price. A cheap service with an unknown ceiling looks fine until the first serious attack.
- No emergency plan. Know who you call and which service must come back first.
- Skipping backups. Even with the best protection, back up regularly.
Hardening the server itself
Network protection does not replace server hardening. Keep the OS and software updated, close unneeded ports, use SSH keys, keep databases off the public internet, cache website pages so each request does not hit the database, and rate-limit heavy routes. None of this stops an attack, but it raises the load you can survive.
DDoS protection at CloudSnap
CloudSnap offers cloud servers from several providers in one account, and each provider has its own level of network protection. DDoS protection as a standalone product you can choose, with special coverage for games and non-web services, is coming soon.
See the DDoS protection page for the current status. If you are under attack now or run a sensitive service, message the CloudSnap Telegram bot and we will help work out which server and location suit you. Current servers are on the pricing page.
FAQ
What is the difference between DoS and DDoS?
A DoS attack comes from one source and can be stopped by blocking it. A DDoS attack comes from many scattered sources, so blocking by hand is practically impossible.
Does a normal firewall stop DDoS?
It helps with small or application-layer attacks, but in a volumetric attack the inbound link saturates before traffic even reaches the firewall. For those you need a network with the capacity and upstream filtering.
Do I need an anti-DDoS server for a WordPress site?
For a purely informational site perhaps not. For a shop or an important service, a protection layer plus caching and rate limiting is worth it.
Does CloudSnap have DDoS protection today?
DDoS protection as a standalone product is coming soon. To learn when it launches, or to discuss your current situation, message the Telegram bot.
How do I know my server is under DDoS?
Typical signs: sudden slowness, dropped connections, a saturated link or abnormal traffic in graphs, and masses of requests from unknown IPs in logs. Compare against your normal traffic pattern.
Can DDoS be eliminated entirely?
No, only reduced. Every service has a capacity ceiling, so the goal is to lower risk and shorten downtime.