Find the CDN in front of any website
Results for
shopify.com
CDN
Behind Cloudflare, running on Shopify
- CDN
Cloudflarecloudflare.com
- Platform
Shopifyshopify.com
How we know
3 signals- NetworkAS13335Cloudflare
- Headercf-ray: a4b9eb0b2cbe7809-HELCloudflare
- Headerserver: cloudflareCloudflare
Run this lookup from code
The API returns this result as JSON. The free plan includes 100 API calls per month.
curl "https://hostingchecker.online/api/v1/check?query=shopify.com" \
-H "Authorization: Bearer YOUR_API_KEY"How it works
How CDN detection works
A content delivery network (CDN) caches a site on servers around the world and answers visitors from the closest one. To do that, the CDN has to sit in the request path: DNS points the domain at the CDN, and the CDN adds its own headers to every response. Both leave signals that anyone can read.
When a CDN proxies the traffic, the origin server stays behind it. The IP address you resolve belongs to the CDN, so a plain IP lookup names Cloudflare or Fastly, not the company that runs the site. A full hosting check reads the platform signals too, and names the host when the site runs on a known platform such as Shopify or Vercel.
- cf-ray
- Cloudflare request ID, sent on every proxied response
- x-amz-cf-id
- Amazon CloudFront request ID
- x-served-by
- Fastly cache node that served the response
- x-akamai-transformed
- Akamai changed the response on the way
- CNAME
- Alias to a CDN host, such as edgekey.net for Akamai
- ASN
- Network that owns the IP address, such as AS13335
FAQ
CDN checker FAQ
Common questions about CDNs and how we detect them.
Related guides
Learn more from the blog
Step-by-step guides on reading and using these results.
How to Find What CDN a Website Uses (5 Methods)
Find what CDN a website uses from its HTTP headers, CNAME records and IP owner. Real output for Cloudflare, CloudFront, Fastly and Akamai sites, plus a header and DNS reference for 10 CDNs.
How to Check If a Domain Uses Cloudflare (4 Methods)
Check if a domain uses Cloudflare in under a minute: look for ns.cloudflare.com nameservers, the cf-ray header or a Cloudflare IP address. Real dig and curl output, plus the setups each check misses.
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