ReadyWebs DDoS Protection Explained: Keeping Your Site Online Under Attack
DDoS Protection Explained
Security Note: This article discusses website security concepts for educational purposes. Always consult a qualified security professional before implementing security changes on production systems.
A DDoS (Distributed Denial of Service) attack floods your server with so much traffic that legitimate visitors cannot access your site. Attackers use networks of compromised computers (botnets) to generate traffic volumes that overwhelm even powerful servers. Protection requires filtering malicious traffic before it reaches your server.
What You Need to Know
Cloudflare (free tier available) provides DDoS protection by routing your traffic through their network and filtering attacks. Enabling Cloudflare is the single most effective step for DDoS protection. Additional measures include rate limiting on your server, geographic blocking of regions you do not serve, and having your hosting provider on speed dial for escalation during attacks.
Types of DDoS Attacks
Volumetric attacks (UDP floods, DNS amplification) overwhelm your bandwidth with massive data volumes, sometimes exceeding hundreds of gigabits per second. These are the most common type and are mitigated by absorbing traffic at the network edge before it reaches your server.
Protocol attacks (SYN floods, Ping of Death) exploit weaknesses in network protocols to exhaust server connection resources. Your server can handle only a limited number of concurrent connections, and protocol attacks fill that capacity with fake requests.
Application layer attacks (HTTP floods, Slowloris) target your web application directly with requests that appear legitimate. These are harder to detect because each individual request looks normal — only the volume and pattern reveal the attack.
Setting Up Cloudflare DDoS Protection
Sign up for a free Cloudflare account and add your domain. Update your domain nameservers to the Cloudflare nameservers provided. Once active, Cloudflare proxies all traffic through their network, automatically filtering DDoS attacks. Enable “Under Attack Mode” in the Cloudflare dashboard during active attacks for maximum protection — this adds a JavaScript challenge that delays visitors by a few seconds but blocks most bot traffic.
Configure rate limiting rules to restrict the number of requests from a single IP address. For most sites, limiting to 100 requests per minute per IP blocks automated attacks without affecting legitimate visitors. Adjust this threshold based on your site normal traffic patterns.
Emergency Response During an Attack
If you are under active attack, enable Cloudflare Under Attack Mode immediately. Contact your hosting provider support team to alert them. Review your server access logs to identify attack patterns. If the attack is targeting a specific page or endpoint, consider temporarily blocking access to that resource. After the attack subsides, review your protection settings and add permanent rules to block the attack vectors used.
Measuring Your DDoS Risk
Not every website faces the same level of DDoS risk. E-commerce sites during peak sales periods, political or controversial content sites, competitive business niches where rivals may use underhanded tactics, and sites that have publicly visible high-traffic metrics are higher-risk targets. Gaming communities, cryptocurrency projects, and sites that have previously been attacked are also disproportionately targeted.
Even low-risk sites benefit from baseline protection because untargeted DDoS attacks sweep the internet constantly. Botnets scanning for vulnerable servers will attack any site that responds, regardless of its content or commercial value. The free Cloudflare tier provides sufficient protection against these opportunistic attacks for the vast majority of websites.
Long-Term DDoS Mitigation Strategy
Beyond reactive measures during an attack, implement proactive defenses that reduce your exposure. Keep your origin server IP address private by routing all traffic through Cloudflare or a similar proxy. If attackers discover your origin IP, they can bypass Cloudflare entirely and attack your server directly. After enabling Cloudflare, change your server IP address if it was previously exposed in DNS records, email headers, or public WHOIS data.
Configure your hosting firewall to accept HTTP and HTTPS traffic only from Cloudflare IP ranges, blocking all other web traffic at the network level. This ensures that even if your origin IP leaks, direct attacks against it are dropped before reaching your web server. Your hosting provider support team can help configure these firewall rules if you are not comfortable editing iptables or UFW rules yourself.
Monitor your server access logs and security alerts for patterns that precede large-scale attacks. Small probing attacks that test your defenses often arrive days or weeks before a full-scale DDoS attempt. Identifying and blocking these reconnaissance probes early can prevent the larger attack from materializing or at least ensure your protection is properly configured before it arrives.
This content is for informational purposes only and reflects independently researched guidance. Platform features and pricing change frequently — verify current details with providers.