Global CDN

Lightning-fast sitemap delivery from Cloudflare's worldwide edge network

Cloudflare-Powered Delivery

All SitemapHost sitemaps are served through Cloudflare's global CDN network, featuring over 300 data centers in more than 100 countries. This ensures your sitemaps load quickly for search engine crawlers, regardless of their location.

MetricValue
Edge locations300+ worldwide
Typical response time<50ms
Uptime SLA99.99%
Network capacity310 Tbps

How It Works

  1. You upload your sitemap -- URLs are stored in Cloudflare R2 storage and XML is generated.
  2. Content is cached at the edge -- Your sitemap XML is cached at all 300+ Cloudflare edge locations.
  3. Crawler requests your sitemap -- Google, Bing, or other crawlers request your sitemap URL.
  4. Served from nearest edge -- The crawler receives the sitemap from the closest data center, typically in under 50ms.

Caching Strategy

We use an intelligent caching strategy optimized for sitemaps:

ContentCache TTLNotes
Sitemap XML files1 hourPurged on update
Sitemap index1 hourPurged on update
404 responses5 minutesShort TTL for quick recovery

When you update your sitemap, we automatically purge the CDN cache so search engines see your changes immediately.

Performance Benefits

For Search Engines

  • Faster crawling - Quick response times mean crawlers can process your sitemap faster
  • Higher reliability - Distributed infrastructure means high availability
  • Global reach - Same performance regardless of crawler location

For You

  • No infrastructure management - We handle all the CDN configuration
  • Automatic scaling - Handles any traffic spike without issues
  • DDoS protection - Cloudflare's built-in protection included

Response Headers

Our CDN responses include useful headers for debugging and verification:

HTTP/2 200
content-type: application/xml; charset=utf-8
cache-control: public, max-age=3600
cf-cache-status: HIT
cf-ray: 8a1b2c3d4e5f6g7h-SJC
last-modified: Mon, 15 Jan 2024 10:30:00 GMT
etag: "abc123def456"
  • cf-cache-status: HIT means the response was served from cache.
  • cf-ray shows the data center that served the request (e.g., SJC = San Jose).

Compression

All sitemap responses are automatically compressed using gzip or Brotli based on the client's Accept-Encoding header. This reduces bandwidth and improves transfer times.

CompressionTypical ReductionSupport
Brotli80-90%Modern browsers and crawlers
Gzip70-80%Universal support

Tip: XML sitemaps compress exceptionally well due to their repetitive structure. A 10MB sitemap often compresses to under 1MB.

Next Steps