Bunny.net: Developer-Friendly Affordable Global CDN

Bunny.net has quietly become one of the most talked‑about CDNs in the developer community, and for good reason. It blends rock‑solid performance with a pricing model that feels almost too good to be true. Whether you’re serving a static blog, streaming video, or accelerating API responses, Bunny gives you the tools you need without the enterprise‑level bill. In this post we’ll unpack the core features, walk through real‑world integrations, and share pro tips to squeeze every last millisecond out of the network.

What Makes Bunny.net Different?

At its heart, Bunny is a classic reverse‑proxy CDN: you point your DNS to an edge node, and the network caches and serves content from the location closest to the user. What sets it apart is the developer‑first mindset baked into every product layer.

• Transparent pricing: No hidden egress fees, no tier‑based minimums.
• Granular control: Edge rules, custom TLS, and instant purge APIs.
• Global reach: Over 130 POPs across 45+ countries, all on a single dashboard.

These pillars translate into a CDN that feels like an extension of your own codebase rather than a black‑box service.

Pricing That Won’t Break the Bank

Bunny’s pricing is measured in “GB transferred” and “GB stored.” As of 2026, the standard tier costs $0.01 per GB transferred and $0.015 per GB stored. There’s also a “Pull Zone” discount that drops the transfer rate to $0.005 for high‑volume customers.

To put that in perspective, a 10 GB static site with 100 GB of monthly traffic costs roughly $1.00 for transfer and $0.15 for storage—well under the cost of a daily coffee. Compare that to the $0.08‑$0.12 per GB you’d see on many competing CDNs, and the savings become obvious.

Pro tip: Enable “Cache Control” headers on your origin server to reduce unnecessary egress. Every cache hit at the edge saves you a fraction of a cent.

Global Edge Network

Bunny’s edge nodes sit in data centers that are strategically colocated with major ISPs and cloud providers. This proximity reduces round‑trip latency and improves TCP handshakes.

Because the network is built on a “pull‑first” model, new POPs are added automatically when traffic patterns demand it. You can even view the real‑time POP map in the dashboard to see exactly where your content is being served.

Edge Rules for Fine‑Grained Control

Edge Rules let you manipulate requests and responses without touching your origin. Common use cases include:

1. Redirecting HTTP to HTTPS.
2. Adding security headers like Content‑Security‑Policy.
3. Rewriting URLs for SPA routing.

The UI provides a visual builder, but you can also define rules via JSON for version control.

Developer‑Friendly API Integration

Bunny’s REST API covers everything from zone creation to cache purging. Authentication is simple: a single API key with read/write scopes.

Below is a minimal Python script that creates a pull zone, uploads a custom SSL certificate, and purges a single file. The requests library is all you need.

import requests
import json

API_KEY = 'YOUR_BUNNY_API_KEY'
BASE_URL = 'https://bunnycdn.com/api'

headers = {
    'Accept': 'application/json',
    'AccessKey': API_KEY,
    'Content-Type': 'application/json'
}

# 1️⃣ Create a Pull Zone
zone_payload = {
    "Name": "my-static-site",
    "OriginUrl": "https://origin.example.com",
    "Enabled": True,
    "CacheControlMaxAgeOverride": 86400   # 1 day
}
resp = requests.post(f'{BASE_URL}/pullzone', headers=headers, data=json.dumps(zone_payload))
zone = resp.json()
zone_id = zone['Id']
print(f'Created Pull Zone ID: {zone_id}')

# 2️⃣ Upload a custom TLS certificate (optional)
cert_payload = {
    "Certificate": open('cert.pem','rb').read().decode(),
    "PrivateKey": open('key.pem','rb').read().decode(),
    "ForceSSL": True
}
resp = requests.post(f'{BASE_URL}/pullzone/{zone_id}/sslcertificate', headers=headers, data=json.dumps(cert_payload))
print('SSL upload status:', resp.status_code)

# 3️⃣ Purge a single file from cache
purge_payload = {"Files": ["/assets/logo.png"]}
resp = requests.post(f'{BASE_URL}/pullzone/{zone_id}/purgeCache', headers=headers, data=json.dumps(purge_payload))
print('Purge response:', resp.json())

This script demonstrates the entire lifecycle: provisioning, securing, and maintaining freshness—all from code.

Integrating with CI/CD Pipelines

Because the API is stateless, you can embed it in GitHub Actions, GitLab CI, or any other pipeline. A typical flow looks like:

1. Build static assets.
2. Upload to your origin (S3, Azure Blob, etc.).
3. Trigger a purgeCache request for changed files.
4. Deploy DNS changes if a new zone is created.

Automating cache purges ensures visitors always receive the latest version without manual steps.

Real‑World Use Cases

1️⃣ Static Site Hosting

Static site generators (Jekyll, Hugo, Next.js export) produce a bundle of HTML, CSS, and images. By pointing a Bunny Pull Zone to the bucket that stores these files, you get:

• Instant global distribution.
• Automatic image optimization (Bunny offers on‑the‑fly WebP conversion).
• Zero‑cost HTTPS via free shared TLS or your own cert.

Because static sites are cache‑heavy, the CacheControlMaxAgeOverride can be set to a week or more, drastically reducing origin traffic.

2️⃣ API Acceleration

Dynamic APIs benefit from edge caching when responses are cacheable (e.g., product catalogs, public data). Bunny’s Edge Caching Rules let you cache based on query strings, request headers, or even custom cookies.

Example: Caching a /v1/products endpoint for 5 minutes, but varying on the Accept-Language header to serve localized content.

# Add a caching rule via API
rule_payload = {
    "Name": "ProductsCache",
    "TriggerType": "Path",
    "TriggerValue": "/v1/products*",
    "CacheControlMaxAge": 300,
    "VaryHeaders": ["Accept-Language"]
}
resp = requests.post(f'{BASE_URL}/pullzone/{zone_id}/edgerules', headers=headers, data=json.dumps(rule_payload))
print('Edge rule created:', resp.status_code)

With this rule, identical requests from different regions are served from the nearest POP, shaving milliseconds off response times.

3️⃣ Video & Large File Streaming

For media-heavy sites, Bunny offers a “Video Optimizer” that transcodes on the fly to adaptive bitrate formats. The service also supports byte‑range requests, enabling smooth seeking.

Key benefits include:

• Reduced bandwidth thanks to on‑the‑fly compression.
• Global delivery without needing a dedicated media server.
• Simple integration: just replace the origin URL with the CDN URL.

Performance Tuning & Best Practices

Even a fast CDN can underperform if the origin isn’t configured correctly. Here are three quick wins that make a measurable difference.

Pro tip: Set Cache‑Control: public, max‑age=31536000 on immutable assets (e.g., versioned JS/CSS). Pair this with fingerprinted filenames so browsers never request stale files.

1. Leverage Brotli/Gzip: Bunny automatically serves pre‑compressed assets if the Accept‑Encoding header includes br or gzip. Ensure your origin provides both compressed and uncompressed variants.
2. Warm the cache: For newly deployed content, run a simple curl loop to pre‑populate edge nodes. This eliminates the “cold‑start” latency for the first real user.
3. Monitor TTLs: Overly aggressive TTLs can cause stale data, while too short TTLs increase origin load. Use Bunny’s analytics dashboard to spot high miss rates and adjust accordingly.

Monitoring and Analytics

The Bunny dashboard offers real‑time graphs for bandwidth, cache hit ratio, and request breakdown by POP. For programmatic access, the /statistics endpoint returns JSON you can feed into Grafana or Prometheus.

stats_resp = requests.get(f'{BASE_URL}/statistics', headers=headers, params={'zoneId': zone_id})
stats = stats_resp.json()
print(f"Cache Hit Ratio: {stats['CacheHitRate']}%")
print(f"Bandwidth Used: {stats['BandwidthUsed']} GB")

Integrating these metrics into your alerting system helps you catch anomalies—like a sudden dip in hit ratio that might indicate a misconfigured cache rule.

Security Features You Can’t Ignore

Bunny includes a suite of security mechanisms out of the box, making it suitable for both hobby projects and production‑grade applications.

• Free SSL/TLS: Automatic Let's Encrypt certificates for any zone.
• Custom WAF Rules: Block IP ranges, rate‑limit requests, or filter based on user‑agent.
• Hotlink Protection: Prevent other sites from embedding your images or videos.

All these can be toggled via the UI or scripted with the API, allowing you to enforce security policies consistently across environments.

Example: Enabling Hotlink Protection via API

hotlink_payload = {
    "Enabled": True,
    "AllowedReferrers": ["https://myblog.com", "https://myapp.com"]
}
resp = requests.post(f'{BASE_URL}/pullzone/{zone_id}/hotlinkProtection', headers=headers, data=json.dumps(hotlink_payload))
print('Hotlink protection status:', resp.status_code)

Once enabled, any request lacking a matching Referer header receives a 403 response, safeguarding your bandwidth.

Advanced Edge Customization with Bunny.net Functions

For developers who need logic that runs at the edge, Bunny introduced “Bunny Functions,” a lightweight serverless environment written in JavaScript. You can rewrite URLs, inject headers, or even perform A/B testing without touching your origin.

Here’s a quick example that adds a custom header to all HTML responses:

// bunny-function.js
addEventListener('fetch', event => {
  event.respondWith(handle(event.request))
})

async function handle(request) {
  const response = await fetch(request)
  const newHeaders = new Headers(response.headers)
  newHeaders.set('X-Developer-Note', 'Served by Bunny Functions')
  return new Response(response.body, {
    status: response.status,
    statusText: response.statusText,
    headers: newHeaders
  })
}

Deploy the function through the dashboard, bind it to a Pull Zone, and every HTML page will now carry the X-Developer-Note header—useful for debugging or feature flags.

Cost Management Strategies

Even with low per‑GB rates, costs can creep up if you don’t keep an eye on usage patterns. Here are three tactics to stay within budget.

1. Enable “Pay‑As‑You‑Go” alerts: Set a threshold (e.g., $10) and receive an email when you approach it.
2. Use “Zone Replication” wisely: Replicating a zone across multiple regions adds redundancy but also extra storage. Only enable it for mission‑critical assets.
3. Compress assets before upload: Smaller files mean less egress. Run tools like imagemin for images and uglify‑js for scripts.

Pro tip: Review the “Top 10 URLs” chart weekly. If a large file spikes in traffic, consider moving it to a dedicated “Video Zone” with lower transfer rates.

Community & Support

Bunny maintains an active Discord community, a public GitHub repository with example configurations, and a responsive support ticket system. The documentation is concise, with code snippets for every API endpoint.

If you ever hit a roadblock, the community usually provides a solution within minutes. This collaborative atmosphere is one of the reasons developers keep coming back.

Conclusion

Bunny.net delivers a compelling blend of performance, affordability, and developer ergonomics. Its transparent pricing makes budgeting painless, while the extensive API and edge‑functionality give you the flexibility to treat the CDN as an integral part of your application stack. By following the best practices outlined above—optimizing cache headers, leveraging edge rules, and monitoring usage—you can extract maximum value from the network without inflating costs. Whether you’re a solo hobbyist or part of a growing startup, Bunny’s global edge can accelerate your content, protect your assets, and keep your wallet happy.