CDN Selection Guide 2026: Cloudflare, Vercel, Bunny, Fastly, and Beyond

CDN selection is one of the higher-impact infrastructure decisions for any web project. The right CDN is the difference between a site that feels fast everywhere in the world and one that crawls outside its home region. Pick wrong and you can pay 10x more for worse performance.

This guide compares the major CDNs in 2026 — Cloudflare, Vercel, Bunny CDN, Fastly, AWS CloudFront, and Cloudflare-Vercel hybrid setups. By the end you will know which CDN fits your stack, traffic pattern, and budget.

The landscape has shifted significantly over the past few years. Edge compute, modern Node hosting, and managed image optimization have changed what "CDN" even means. Most teams should re-evaluate every 2 years.

What a CDN actually does

A Content Delivery Network has three core functions in 2026.

Cache static assets at the edge

JavaScript, CSS, images, fonts, video — cached at edge locations close to users. Reduces latency from hundreds of ms to tens of ms.

Cache dynamic content (where configured)

HTML pages, API responses — cached with appropriate invalidation rules. Modern CDNs handle this well.

Run code at the edge

Edge functions for redirects, auth checks, A/B testing, geolocation-based routing. Modern feature, increasingly important.

We covered the broader caching context in our caching strategies for web performance guide. CDN is one specific cache layer.

The major CDN options in 2026

The market has consolidated around a handful of players, each with different strengths.

Cloudflare

Pricing: Free tier covers most SMEs. Paid plans start around $20/month, Workers Paid at $5/month.

Strengths: massive global network (300+ POPs), generous free tier, integrated DDoS protection, edge compute via Workers, image optimization via Polish or Cloudflare Images, comprehensive DNS.

Weaknesses: Workers have specific runtime limitations, complex pricing once you scale, some advanced features locked behind enterprise.

Best for: most SMEs, sites needing DDoS protection, projects that want full-stack edge compute.

Vercel

Pricing: Free hobby tier, Pro at $20/user/month, Enterprise custom.

Strengths: zero-config for Next.js, automatic image optimization, edge functions and middleware, preview deploys, excellent DX, ISR built-in.

Weaknesses: bandwidth pricing can spike on high-traffic sites, limited customization vs Cloudflare or AWS, vendor lock-in for some features.

Best for: Next.js apps, teams that value DX, sites that benefit from preview deploys.

Bunny CDN

Pricing: $0.01/GB to $0.06/GB depending on region. No platform fee.

Strengths: cheapest premium CDN, excellent performance, simple pricing, easy migration from other CDNs, image optimization included.

Weaknesses: smaller edge network than Cloudflare or Fastly, no built-in DDoS protection, no edge compute beyond basic rules.

Best for: budget-conscious sites, high-traffic static content, teams that want simple CDN without managed platform.

Fastly

Pricing: $50/month minimum, then bandwidth-based.

Strengths: highest-performance CDN, most flexible cache configuration via VCL, edge compute via Compute@Edge, real-time analytics.

Weaknesses: enterprise-tier pricing, steep learning curve for VCL, overkill for most SMEs.

Best for: large sites with complex caching needs, teams with engineering capacity to invest in VCL.

AWS CloudFront

Pricing: pay-as-you-go, $0.085/GB tier in cheapest regions.

Strengths: deep AWS integration, Lambda@Edge for compute, comprehensive feature set, scales to enterprise.

Weaknesses: complex configuration, slower DX than alternatives, harder to invalidate cache, region pricing complexity.

Best for: sites already on AWS, enterprises with AWS commitment.

Decision framework

Pick the right CDN by answering three questions.

Question 1 — What's your stack?

• Next.js / Vercel-friendly: Vercel native, or Cloudflare with custom deploy
• Static site (Jekyll, Hugo, Astro static): Cloudflare or Bunny CDN
• WordPress: Cloudflare or built-in host CDN
• Custom Node app: Vercel for managed, AWS for control
• High-traffic e-commerce: Cloudflare or Fastly

Question 2 — What's your traffic volume?

• Under 100 GB/month bandwidth: Cloudflare free tier or Vercel hobby
• 100 GB to 1 TB/month: Cloudflare Pro, Vercel Pro, or Bunny CDN
• 1 TB to 10 TB/month: Bunny CDN (cheapest), Cloudflare Pro, Vercel Enterprise
• 10+ TB/month: Fastly, AWS CloudFront, or enterprise tiers

Question 3 — Do you need edge compute?

• No (pure static): any CDN works
• Light (redirects, headers): Cloudflare Page Rules, Bunny Edge Rules
• Medium (auth, A/B testing): Cloudflare Workers, Vercel Edge Functions
• Heavy (server-side rendering at edge): Cloudflare Workers, Vercel Edge, Fastly Compute@Edge

The combination of these three usually points to one or two candidates.

Cloudflare deep dive

The default recommendation for most SMEs.

Why Cloudflare is the SME default

• Free tier covers most needs
• 300+ POPs globally — better coverage than most paid alternatives
• DDoS protection included
• DNS, CDN, edge compute, image optimization all in one platform
• Workers ecosystem is mature

Setting up Cloudflare correctly

The free tier requires some configuration to maximize benefit:

• Cache Everything page rule for static asset routes
• Browser Cache TTL set in Page Rules
• Always Use HTTPS enabled
• Minify HTML/CSS/JS enabled
• Brotli compression enabled
• HTTP/3 (QUIC) enabled
• Polish image optimization (paid feature, worth it)

Without these settings, Cloudflare's free tier is just DNS. With them, it is a real CDN.

Cloudflare Workers for edge compute

Workers run JavaScript at the edge. Use cases:

• Authentication checks before reaching origin
• A/B testing variant selection
• Geographic redirects
• Custom caching logic
• API proxying

Pricing: $5/month for 10M requests, then $0.50/M after. Affordable.

Cloudflare Images

A managed image CDN that ingests originals, serves optimized variants, handles format negotiation.

Pricing: $5/month for 100K images stored, $0.50 per 100K image variants delivered.

For sites with many images, often cheaper than building this on your own infrastructure.

Vercel deep dive

The Next.js native choice.

Why Vercel for Next.js

• Zero-config: deploy from Git, everything works
• ISR, Edge Functions, Image Optimization all built in
• Preview deploys on every PR
• Automatic CDN distribution

For Next.js apps, the DX advantage is substantial. Teams ship features faster, performance is good by default, less DevOps overhead.

Where Vercel pricing gets expensive

• High bandwidth (above 1 TB/month on Pro)
• Heavy ISR regeneration
• Large image catalogs (image optimization is metered)
• High edge function invocations

Watch the usage dashboard. Cost spikes can surprise teams.

Vercel vs Cloudflare for Next.js

Both work. Vercel has the best DX. Cloudflare can be cheaper at scale and gives more control.

For most SMEs, Vercel Pro at $20/user/month delivers the best balance. For high-traffic sites, evaluating Cloudflare-as-CDN with Next.js elsewhere can save money.

We covered the deeper Next.js performance picture in our Next.js performance best practices guide.

Bunny CDN deep dive

The cheapest credible CDN.

Why Bunny CDN matters

Pricing: $0.01 to $0.06 per GB depending on region. Compare to AWS CloudFront at $0.085/GB minimum or Vercel Pro at effectively $0.15/GB above the included quota.

For high-bandwidth sites with static content, Bunny saves 50 to 80 percent vs alternatives.

Bunny CDN features

• Image optimization included
• Edge Rules for basic logic
• Pull zones for cache aggregation
• Storage layer for origin replacement
• Volume tiers for further discounts

The feature set is solid for SMEs and lacks only enterprise capabilities (advanced edge compute, complex VCL-style configuration).

When to choose Bunny

• High-traffic static content
• Budget-constrained projects
• Sites that do not need edge compute
• Migrations from expensive CDN setups

Fastly deep dive

The performance and flexibility leader.

Why Fastly

Most flexible CDN configuration through VCL (Varnish Configuration Language). Real-time logs and analytics. Edge compute via Compute@Edge. Fastest TTFB consistently across global locations.

Where Fastly is overkill

For SMEs, the $50/month minimum and steep learning curve are usually not worth it. Cloudflare or Bunny deliver 90 percent of the performance at 20 percent of the cost.

When Fastly is the right call

• Sites with complex caching rules that simpler CDNs cannot express
• Enterprises that need real-time analytics and logging
• Teams with engineering capacity to invest in VCL
• High-traffic publishers and media sites

Edge compute platforms

The 2026 landscape includes platforms that combine CDN with full-stack edge compute.

Cloudflare Workers

• Runtime: V8 isolates (subset of Node APIs)
• Pricing: $5/month for 10M requests
• Strengths: cheap, fast cold start, integrated with Cloudflare CDN
• Weaknesses: limited Node API surface, no native filesystem

Vercel Edge Functions

• Runtime: Edge Runtime (subset of Node APIs)
• Pricing: included in Vercel plans, metered above quota
• Strengths: zero-config with Next.js, automatic deployment
• Weaknesses: vendor lock-in, limited custom routing

Deno Deploy

• Runtime: Deno (TypeScript-first)
• Pricing: free tier generous, paid tiers competitive
• Strengths: TypeScript native, web standards APIs, fast cold start
• Weaknesses: smaller ecosystem than Workers or Vercel

AWS Lambda@Edge

• Runtime: Node.js, Python
• Pricing: pay-per-invocation, AWS-tier
• Strengths: full Lambda capabilities at edge
• Weaknesses: complex setup, AWS lock-in

For most SMEs, Cloudflare Workers or Vercel Edge Functions are the right edge compute layer.

Migrating between CDNs

Some practical notes on migration.

Plan for cache warming

The new CDN will have empty caches initially. Plan for slightly slower performance for the first 24 to 48 hours as caches populate.

Test extensively before DNS cutover

Most CDNs let you test by accessing via their CDN-provided URL before changing DNS. Verify all paths work, headers are correct, redirects function.

Reconcile cache headers

Different CDNs interpret cache headers slightly differently. Verify behavior matches expectations.

Monitor for breakage

Watch error rates, 404s, and origin requests during cutover. Cache miss rates spike normally — error rates should not.

Plan rollback

DNS changes can take hours to propagate. Have a rollback plan ready if issues surface.

A real example — Marseille cosmetics CDN migration

We migrated a Marseille cosmetics e-commerce site from AWS CloudFront to Cloudflare. Previous setup: CloudFront at $0.085/GB, no edge compute, complex invalidation.

After migration: Cloudflare Pro at $20/month flat + Workers at $5/month + Cloudflare Images at $20/month. Total ~$45/month flat.

Bandwidth cost saved: was paying $480/month for CloudFront. Now $45/month for Cloudflare. Savings: $435/month.

Performance: TTFB improved from 240 ms to 80 ms global average. Image LCP improved from 2.4 seconds to 1.1 seconds.

The full story is in our Marseille cosmetics case study.

Common CDN selection mistakes

These are the patterns we see most often.

Defaulting to CloudFront because of AWS hosting. Cloudflare in front of AWS origin is often a better setup.

Overpaying for Vercel bandwidth. For high-traffic sites, Cloudflare or Bunny as CDN with Next.js on Vercel can dramatically cut costs.

Skipping image CDN. Modern image optimization (WebP/AVIF, responsive sizing) requires CDN-side processing. Pay $20/month for image CDN or burn 20 to 50 percent more bandwidth.

Not configuring caching aggressively. Free CDN tiers do nothing without proper cache headers. Configure or you waste the free tier.

Choosing based on free tier alone. Free tiers are excellent for getting started. At scale, total cost differs by 5 to 10x between providers. Re-evaluate as you grow.

Sticking with a CDN through unrelated price increases. CDN pricing changes. Re-evaluate every 2 years.

Frequently asked questions

Which CDN is best for SMEs?

For most SMEs, Cloudflare's free tier or Cloudflare Pro covers all needs at low cost. Bunny CDN is the cheapest premium option. Vercel is best for Next.js apps.

Do I need a CDN if my host is fast?

Yes. Even fast hosting only serves from one region. A CDN serves from edge locations close to every user globally.

Is Cloudflare really free?

Yes for most SMEs. The free tier includes CDN, DDoS protection, and DNS. Paid tiers add advanced features like Polish image optimization, advanced page rules, and increased Workers usage.

How much CDN bandwidth does a typical SME site use?

Small marketing sites: 10 to 100 GB/month. Larger content sites: 500 GB to 2 TB. High-traffic e-commerce: 5 to 50 TB. Pick your CDN based on this projection.

Can I switch CDNs without downtime?

Yes, with planning. Test through the new CDN's preview URL before DNS cutover. Plan for cache warming and brief performance dip in first 24 to 48 hours.

Should I use multiple CDNs?

Rarely. The complexity is not worth it for most sites. Enterprises sometimes use multi-CDN for redundancy. SMEs should stick with one.

Get a CDN audit

We audit existing CDN setups free of charge. Within 48 hours we deliver a comparison against alternatives, cost projection, and migration plan if warranted.

Book a free 30-minute audit. We screen-share, walk through your current setup and traffic patterns, and you leave with a clear recommendation.

Or explore our Web Development service for the full system we run on performance-focused client accounts.