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Content Delivery Networks Guides Tools Blog


CDN FINDER

Identify the CDNs on a website. Easy, fast and accurate

Identify all the CDNs used on a web page or lookup the CDN for a single URL or
hostname.

Website Hostname or URL
Run CDN Finder Bookmarklet


--------------------------------------------------------------------------------


CDN FINDER FAQ

 * How does CDN Finder identify a CDN?
 * Does CDN Finder identify CDN for streaming video?
 * Do all websites use a CDN?
 * Is Amazon ELB a CDN?
 * Is Azure Front Door a CDN?


HOW DOES CDN FINDER IDENTIFY A CDN?

In short, CDN Finder uses DNS, response headers and IP-to-ASN mappings to
identify the CDN. Read more about how CDN Finder identifies a CDN in our blog
post:
The All New CDN Finder


DOES CDN FINDER IDENTIFY CDN FOR STREAMING VIDEO?

The CDN Finder tool analyzes the HTML of a web page. If that web page has a
video element, CDN Finder will see the URL in that element's source and identify
the CDN. However, if the web page has video that is initialized by JavaScript,
CDN Finder will not detect it.


DO ALL WEBSITES USE A CDN?

Chapter 22 of the 2022 Web Almanac shows that 29% of websites use a CDN to
deliver HTML and 47% of websites that deliver page resources like images, css
and fonts from subdomains use a CDN.
2022 Web Almanac - CDN Adoption


IS AMAZON ELB A CDN?

No, Amazon Elastic Load Balancer is not a CDN.


IS AZURE FRONT DOOR A CDN?

Yes, Azure Front Door is a content delivery network, typically used to delivery
dynamic content.

Like this tool? Have feedback? Share or reply to us on Twitter


CDN TOOLS

 * CDN Performance Checker
 * EDNS Client Subnet Checker


API

Contact us to learn more about the CDN Finder API with Multi-CDN detection

info@cdnplanet.com
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More CDNs AdvancedHosting Akamai BelugaCDN CDN77 CDNvideo ChinaCache Cloudflare
CloudFront Edgio Fastly Gcore Imperva Kingsoft Cloud Leaseweb Lumen Medianova
StackPath Tata Communications Tencent Cloud

ABOUT

CDN Planet launched in 2011 and is built and operated by Aaron Peters. As a
freelance web performance consultant and co-founder of Multi-CDN service
provider TurboBytes, Aaron has 10+ years experience with all things CDN,
including advanced configurations, deep-dive troubleshooting, traffic steering
and performance monitoring.

twitter.com/cdnplanet
info@cdnplanet.com

CONTENT DELIVERY NETWORKS

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 * EdgeNext

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 * Medianova
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CDN BLOG

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 * Site Speed of CDN Websites
   

 * CDN Performance Checker

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