A Content Delivery Network is no longer a luxury — it’s basic infrastructure for any public web project. In 2026, your CDN provider choice affects not just load speed but also SEO (Core Web Vitals), security (DDoS protection), and budget (traffic costs money).
Recommended platforms: cloudflare.com, keycdn.com
Over the past couple of years, I’ve tried a dozen CDNs — from Cloudflare to Bunny — and I’ve gathered the criteria worth evaluating before choosing. No bias toward a specific provider.
Step 1: Audience Geography
The first and most important question: where are your users?
If 90% of your traffic is Russia and the CIS, you don’t need a CDN with 100+ points in South America. You need nodes in Moscow, Saint Petersburg, Stockholm, Helsinki, Frankfurt.
If your audience is global (US, Europe, Asia) — look at the number and placement of PoPs (points of presence). Cloudflare leads with 330+ cities, followed by Bunny (114+), Fastly (80+), KeyCDN (60+).
Check coverage through the provider’s looking glass. Don’t be lazy — run ping and traceroute from several regions to the nearest node.
Step 2: Content Type
Different content needs different CDN strategies:
Static files (CSS, JS, images, fonts) — any CDN with a pull zone works. Configure the origin, enable caching, and you’re set.
Video and streaming — you need a specialized CDN with HLS/DASH support, byte-range requests, and adaptive bitrate. Bunny Stream, Cloudflare Stream, Mux.
API responses — you need edge caching with short TTLs (seconds, not hours) and API-based invalidation. Cloudflare, Fastly.
Dynamic content — the CDN doesn’t cache here; it proxies requests to the origin. What matters is a low-latency network to your server. Argo Smart Routing (Cloudflare), Accelerate (Bunny).
Downloadable files (PDFs, installers) — any CDN with generous included traffic.
Step 3: Pricing
CDN prices in 2026 range from $0.01 to $0.12 per gigabyte. A 12x difference.
Main pricing models:
- Pay-as-you-go: pay per traffic. Bunny ($0.01–$0.03/GB), KeyCDN ($0.04/GB)
- Flat rate with bundles: fixed price per terabyte. Cloudflare (Pro $20/mo, includes more than just CDN)
- Enterprise with contract: custom pricing at 50+ TB/month. Cloudflare, Fastly, Akamai
For a project with 1 TB of monthly traffic: Bunny — $10, Cloudflare Pro — $20 (including WAF and protection), KeyCDN — $40, Fastly — $50+. A noticeable difference.
Look beyond the per-GB price: paid certificates, invalidation API calls, built-in storage costs — those hidden fees add up.
Step 4: Security
A good CDN is also a shield. What you should expect:
Free TLS certificates — standard in 2026. Auto-issuance and renewal. Cloudflare, Bunny, and Fastly all handle this.
DDoS protection — Cloudflare is king here (free for L3/L4, L7 on Pro). Others provide basic protection, until the first serious incident.
WAF (Web Application Firewall) — blocking SQL injections, XSS, and other attacks at the edge. Cloudflare WAF is available on Pro ($20/mo). Bunny and Fastly offer it through plugins or custom rules.
Bot protection — Cloudflare leads with Turnstile. Others are catching up.
If your site is a public service handling money, WAF and DDoS protection are mandatory. Don’t skimp on this.
Step 5: Developer Experience
Three things matter to developers:
API: full control over zones, caching, invalidation. Cloudflare, Bunny, Fastly — excellent APIs. KeyCDN — simpler.
Terraform/Pulumi: managing configuration as code. Cloudflare Provider is mature. Bunny is catching up.
CI/CD integration: automatic cache invalidation on deploy. GitHub Actions, GitLab CI. All major CDNs support this.
CDN Selection Checklist
Before entering your credit card, go through these points:
- PoPs in audience regions? Verified via looking glass?
- Content type (static/video/API/files) supported?
- Traffic fits budget with 30% headroom?
- Free TLS certificates with auto-renewal?
- DDoS protection included in plan?
- WAF needed? If yes — available on chosen plan?
- API covers required operations (purge, warm, configure)?
- Terraform provider mature enough for IaC?
- Support: chat/email/phone? SLA?
- Trial or free tier available for testing?
A Few Recommendations (Subjective)
For most small and medium projects — Bunny CDN. Cheap, fast, no surprises. Pay only for traffic.
For projects with elevated security requirements — Cloudflare. WAF, DDoS, bots — all on Pro at $20/mo. The richest feature set on the market.
For e-commerce and high-traffic sites with custom caching requirements — Fastly. Powerful VCL, edge computing (Compute@Edge), instant invalidation. Expensive, but flexible.
What’s Next
Connect your chosen CDN, configure the origin, verify through PageSpeed and WebPageTest that static assets are truly served from edge nodes. Response headers don’t lie: cf-cache-status: HIT (Cloudflare) or CDN-Cache: HIT (Bunny) — your proof that everything is set up correctly.
And don’t forget monitoring. UptimeRobot or Better Stack will tell you if a CDN node goes down and traffic starts hitting origin directly. Without monitoring, you’ll find out from your users.