What is Fastly?

CDN

Fastly is a content delivery network (CDN): Edge cloud platform and CDN. Tech Stack Detector identifies Fastly on any website by analysing HTTP response headers.

Fastly is a content delivery network (CDN) (CDN), detected on 27 websites in our index. See websites using Fastly ↓

CategoryCDN
Official sitefastly.com
Detection signals2 signals
In our index27 websites

How Tech Stack Detector detects Fastly

Fastly is matched from these signals during a single, ordinary page request. Each one contributes to the confidence score shown on a scan.

  • HeaderFastly cache server header
  • HeaderFastly request ID header

Websites using Fastly

Recently scanned websites where we detected Fastly. Open one to see its full technology stack.

www.gordoncolegal.com7 technologies · 19 h ago trancedk.me5 technologies · 21 h ago relais360.com2 technologies · 21 h ago xn--mnchen-3ya.de5 technologies · 1 d ago angular.dev5 technologies · 2 d ago harrisburgislamiccenter.org3 technologies · 2 d ago compleksityy.github.io5 technologies · 2 d ago www.theverge.com12 technologies · 2 d ago janeandmeryshop.com7 technologies · 3 d ago www.etsy.com2 technologies · 5 d ago chumble.app2 technologies · 6 d ago www.docker.com15 technologies · 7 d ago cnn.com8 technologies · 8 d ago www.bloomberg.com2 technologies · 8 d ago fastly.com5 technologies · 8 d ago www.forbes.com9 technologies · 8 d ago drupal.org6 technologies · 8 d ago djangoproject.com4 technologies · 8 d ago

View all websites using Fastly

Often used with Fastly

Technologies most frequently detected alongside Fastly across scanned websites.

Google WorkspaceOther11 sitesGitHub PagesHosting8 sitesPHPLanguage7 sitesGoogle FontsFont6 sitesProgressive Web AppOther6 sitesGoogle Tag ManagerAnalytics6 sitesNext.jsFramework4 sitesReactFramework4 sites

Alternatives to Fastly

Other CDN technologies Tech Stack Detector detects: popular alternatives and related tools, most-detected first.

CloudflareCDN247 sitescdnjsCDN34 sitesjsDelivrCDN28 sitesAmazon CloudFrontCDN17 sitesAkamaiCDN14 sitesUNPKGCDN13 sitesGoogle Hosted LibrariesCDN7 sitesBunny.netCDN1 siteKeyCDNCDN

Compare Fastly

Side-by-side comparisons of Fastly with other CDN technologies.

Fastly vs Cloudflare Fastly vs cdnjs Fastly vs jsDelivr Fastly vs Amazon CloudFront Fastly vs Akamai

Popular technologies

The technologies most often detected across all websites scanned on Tech Stack Detector.

CloudflareCDN247 sitesGoogle FontsFont215 sitesTailwind CSSUI Library170 sitesReactFramework165 sitesProgressive Web AppOther147 sitesPHPLanguage139 sitesNode.jsLanguage136 sitesNext.jsFramework124 sitesBootstrapUI Library119 sitesGoogle WorkspaceOther110 sites

Frequently asked questions

What is Fastly?

Fastly is a content delivery network (CDN): Edge cloud platform and CDN. Tech Stack Detector identifies Fastly on any website by analysing HTTP response headers. Its official website is https://fastly.com.

How can I tell if a website uses Fastly?

Enter any URL into Tech Stack Detector and it reports whether Fastly is present, with a confidence score and the exact evidence it matched. Detection is based on HTTP response headers. No login or crawling of the site is required.

How many websites use Fastly?

Fastly has been detected on 27 websites in the public Tech Stack Detector scan index. This reflects sites that visitors have analysed here, not global market share.

What are some alternatives to Fastly?

Other CDN technologies Tech Stack Detector detects include Cloudflare, cdnjs, jsDelivr, Amazon CloudFront, Akamai and UNPKG. You can compare any of them side by side with Fastly.

Data last updated October 20, 2026 · based on 618 recently scanned websites.