Full professional review
DDoS protection is not a cheap line item, but the cost of being down under a sustained attack is usually far higher. Volumetric floods break the multi-Tbps ceiling regularly now, and the services below filter that traffic before it reaches your origin. The core message of this guide is simple: match the service to your attack surface and budget — a personal site does not need a $3,000/month scrubbing network, and a mission-critical API should not rely on a free tier alone. Where we cannot independently instrument latency or uptime, we state that we are relying on public vendor capacity data and third-party benchmarks rather than inventing numbers.
Cloudflare — Best overall DDoS protection (4.7/5)
Cloudflare is the market leader for good reason. Its global anycast edge carries roughly 500 Tbps of capacity, and DDoS mitigation is unmetered on every plan — including the genuinely free tier, which is rare for real protection. For websites and web applications, always-on L3–L7 filtering kicks in in seconds with no manual diversion. Pro is $20/mo (annual), Business $200/mo. The catch: the free and Pro tiers cap advanced WAF tuning and analytics, and full IP/network protection (Magic Transit) jumps to enterprise pricing around $5,000+/mo. For most web-based buyers, however, Cloudflare offers the best protection-per-dollar in the market.
Akamai Prolexic — Best enterprise scrubbing depth (4.6/5)
Akamai (which acquired Prolexic in 2014) operates the industry's largest dedicated DDoS platform: 20+ Tbps of scrubbing capacity across 32 anycast global centers, backed by 1+ Pbps of overall network capacity. It advertises zero-second mitigation, a 100% platform availability SLA and a 24/7/365 security operations center with 225+ responders, and it protects cloud, on-prem (Corero) and hybrid origins. There is no public pricing — it is quote-based and enterprise-scoped. For organizations with large, internet-exposed attack surfaces and near-zero tolerance for downtime, Prolexic is the depth-first pick; it is simply overkill for a personal site.
Azure DDoS Protection — Best Microsoft-native (4.6/5)
For teams already in Azure, Azure DDoS Protection is a seamless always-on integration that protects VNets, load balancers and App Gateway across L3–L4, with L7 covered by Azure WAF. It comes in two tiers: Network Protection at $2,944/month (includes up to 100 public IP resources, $29.50/resource overage) and IP Protection at $199/month per public IP resource. The always-on model means no manual diversion — attacks are absorbed automatically in the Azure spine. The trade-off is clear: it is most valuable inside Azure, and the Network Protection bill is steep for small Azure-only owners. If you are Azure-heavy, this is the lowest-friction option available.
Imperva — Best broad multi-asset coverage (4.5/5)
Imperva covers web applications, network infrastructure, DNS and IP assets from a single always-on or on-demand platform, with a strong 3-second SLA for L3/L4 attacks and behavioral analysis for L7. It was acquired by Thales, with the deal completing in 2025 — an ownership change worth knowing about for long-term buyers, though the DDoS portfolio remains active and well-regarded (Gartner 4.5, G2 4.4). Pricing is quote-based and enterprise-oriented. If you need to defend a mix of web, network and DNS assets with one vendor, Imperva is arguably the broadest fit here.
AWS Shield — Best AWS-native (4.5/5)
AWS Shield Standard is included free for every AWS customer and automatically protects against common network and transport-layer (L3/L4) attacks. Shield Advanced adds managed DDoS protection, application-layer (L7) defense through AWS WAF, access to the Shield Response Team (SRT) and cost protection — for a flat $3,000/month on a one-year subscription, plus $0.025/GB of data transfer. It integrates cleanly with WAF and Firewall Manager. The limitation: it only shields AWS-hosted resources, so off-AWS origins need a separate provider. For AWS-native security teams, however, Shield is the lowest-friction managed path.
Radware — Best adaptive managed defense (4.4/5)
Radware stands out for behavioral-based detection and auto-generated signatures that adapt to new attack patterns in real time, rather than waiting on signature updates. It offers always-on (Cloud DDoS Protection Service), on-demand (DefensePro) and hybrid modes across web, DNS, SIP and network traffic, with strong G2 ratings (4.8). It is priced by quote and leans enterprise/hybrid, where always-on depth delivers the most value. If you want a service that learns and adapts during an attack, and you can handle the enterprise licensing complexity, Radware is a compelling managed choice.
Sucuri — Best for WordPress and small sites (4.3/5)
Sucuri (a GoDaddy company) is the pragmatic choice for WordPress users and smaller sites that want website security plus DDoS protection without an enterprise budget. Its cloud WAF blocks L3/L4 DDoS floods and L7 attacks, and plans are simple annual subscriptions: Basic $199/yr (~$17/mo), Pro $299/yr and Business $499/yr for the fastest response. It includes malware cleanup and a 30-day guarantee. It is website-focused rather than full network/IP-range protection, and the per-site cost scales if you manage many properties. For a single business or WP site, it is hard to beat on simplicity.
Fastly — Best for edge-native application teams (4.2/5)
Fastly brings always-on DDoS mitigation to its edge cloud, tightly coupled with a next-gen WAF and a developer-first platform. It fits teams already running on Fastly's CDN or those with latency-sensitive, edge-native applications. Pricing is usage-based and quoted. It is less turnkey for non-technical buyers and lacks a free DDoS tier, but for engineering teams that want mitigation inline with their edge delivery, Fastly is a clean fit. Teams without a Fastly edge should weigh the extra hop before adopting it for DDoS alone.