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DDoS Protection Checklist: 12 Steps Every Engineering Team Should Take

A

Akarguard Team

Security Engineering

Sep 13, 20268 min read

From rate limiting and WAF rules to DNS-based scrubbing and incident runbooks — a practical checklist you can implement this week to harden your infrastructure.

DDoS protection is not a single product you install and forget — it is a layered defence, and the layers are where most teams have gaps. This checklist gives you twelve concrete steps, grouped from the network layer up through the application layer to overall resilience, ordered so you can start with the quick wins today and work toward the deeper architectural changes. None of it is exotic; the value is in doing all of it rather than half.

Network Layer (L3/L4)

  • Enable BCP38 / ingress filtering at your network edge to reject spoofed source IPs.
  • Hide your origin IP behind a reverse proxy (a DNS change with Akarguard) so a direct volumetric flood has no target — but stop the raw flood itself upstream, at your host or transit provider.
  • Rate-limit ICMP, UDP and SYN at the firewall.
  • Disable unused UDP services exposed to the internet (DNS, NTP, Memcached) so you are not an amplifier.
  • Keep your origin server IP confidential — never let it appear in a public DNS record.

Application Layer (L7)

  • Deploy a Web Application Firewall with rate-limiting rules per IP and per session.
  • Enable a CAPTCHA or JavaScript challenge on high-traffic endpoints when traffic looks anomalous.
  • Apply connection limits and request throttling at your proxy or load balancer.
  • Cache static assets aggressively — a cached response never touches your app server.

Infrastructure & Resilience

  • Use a DDoS-resistant DNS provider — your DNS being reachable matters as much as your application.
  • Run regular load tests so you know your real breaking point before an attacker finds it.
  • Document a DDoS response runbook: who to call and what to do in the first five minutes.

The step teams most often miss

Teams spend days hardening servers and forget their DNS entirely. If your DNS goes down, none of the rest matters — the site is unreachable regardless. Put a DDoS-resistant DNS provider on the list and treat it as critical, not an afterthought.

How Akarguard Covers the List

Several of these steps are exactly what Akarguard does for you once your domain is routed through it: it hides your origin, applies a WAF and per-IP/per-session rate limits, offers JavaScript-challenge and CAPTCHA protection modes, enforces connection limits, and can cache at the edge — all managed from one panel, with automatic mitigation on top. Two items stay outside its scope and belong in your plan regardless: raw volumetric filtering is handled upstream by your host or transit provider, and DNS-layer protection requires a dedicated DDoS-resistant DNS provider. Akarguard protects the web tier; pair it with a hardened DNS provider to close the list.

Frequently asked questions

What are the essential steps for DDoS protection?

Work in layers: at the network layer enable BCP38, hide your origin behind a proxy, rate-limit ICMP/UDP/SYN, and disable exposed UDP services; at the application layer deploy a WAF, use challenges on hot endpoints, apply connection limits, and cache aggressively; for resilience use a DDoS-resistant DNS provider, load-test regularly, and document a response runbook.

What is the most commonly missed DDoS protection step?

DNS. Teams harden their servers thoroughly and forget that if their DNS provider goes down, the site is unreachable regardless of how well the servers are protected. Use a dedicated DDoS-resistant DNS provider and treat it as critical infrastructure, not an afterthought.

Can one product cover the whole checklist?

No — DDoS protection is layered by nature. A reverse proxy like Akarguard covers much of the web tier (origin hiding, WAF, rate limits, challenges, connection limits, caching, automatic mitigation), but raw volumetric filtering stays with your host or transit provider and DNS-layer protection needs a dedicated DDoS-resistant DNS provider.

Which checklist items does Akarguard handle?

Once your domain routes through it: hiding your origin, a managed WAF, per-IP and per-session rate limits, JavaScript/CAPTCHA challenge modes, connection limits and edge caching, with automatic mitigation. Volumetric filtering (upstream) and DNS-layer protection (a DDoS-resistant DNS provider) stay outside its scope and belong in your plan.

A

Akarguard Team

Security Engineering at Akarguard

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