Many sites are under DDOS attacks from time to time, little and big one`s. First I didn't know what that means, but after informing myself on internet I saw some interesting facts.
- $150 can buy a week-long DDoS attack on the black market. TrendMicro Research. Specialized online marketplaces exist to buy and sell botnets or individual DDoS attacks. Using these underground markets, anyone can pay a nominal fee to silence websites they disagree with or disrupt an organizations online operations. A week-long DDoS attack, capable of taking a small organization offline can cost as little as $150.
-More than 2000 daily DDoS Attacks are observed world-wide by Arbor Networks. ATLAS Threat Report, Botnets can generate huge floods of traffic to overwhelm a target. These floods can be generated in multiple ways, such as sending more connection requests than a server can handle
So basically someone just need to give 150 $ ( more or less ) to shut down some site for a week. That is just crazy in my opinion. Probably one of bad sides of black market.
If you're interested in reading a little more about DDOS attacks,
this is an interesting article.
Although you can rent out a botnet to launch a DDOS attack, there are usually ways to get around DDOS attacks as well. In the article I linked to above, Cloudflare explained how they successfully mitigated a 65Gbps attack launched against one of their customers, and how the customer's site wasn't affected at all by the attack. If what I've heard is accurate, Rollin.io is pricing out their Cloudflare options to prevent these sorts of attacks in the future.