As of October 11, 2026, TechLeads detects Fastly on 151,892 websites: 0.32% of CDN detections, the 14th most-used of 80 CDN technologies we track.
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Citation
TechLeads. "Companies Using Fastly." Data as of October 11, 2026. https://techleads.fyi/technology/fastlyHTML link
<a href="https://techleads.fyi/technology/fastly">Companies using Fastly (TechLeads data)</a>Sample results for Fastly
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|---|---|---|---|---|---|---|
| #100 | Issuu Reader | Reader for Issuu | - | - | - | ||
| #507 | OWASP Foundation, the Open Source Foundation for Application Security | OWASP Foundation | OWASP Foundation, the Open Source Foundation for Application Security on the main website for The OWASP Foundation. OWASP is a nonprofit foundation that works to improve the security of software. | - | - | - | ||
| #582 | Global Wellness Institute | The Global Wellness Institute is a nonprofit organization with a mission to empower wellness worldwide by educating public and private sectors about preventative health and wellness. | Global Wellness Institute | US | en-US | ||
| #830 | Git | - | - | - | - | ||
| #1,000 | EL MUNDO - Diario online l�der de informaci�n en espa�ol | La Hacienda de Bizkaia deber� aclarar "qu� garant�as de deuda" aport� el grupo petrol�fero Hafesa para concederle sucesivos aplazamientos de pago del pago del... | Unidad Editorial | ES | es | ||
| #1,000 | BuzzFeed | BuzzFeed has breaking news, vital journalism, quizzes, videos, celeb news, Tasty food videos, recipes, DIY hacks, and all the trending buzz you’ll want to share with your friends. Copyright BuzzFeed, Inc. All rights reserved. | BuzzFeed | US | en-us | ||
| #1,047 | Log in to New Relic | FutureStack is hitting the road—and coming to a city near you. Register now. | - | - | - | ||
| #1,204 | Bootstrap · The most popular HTML, CSS, and JS library in the world. | Powerful, extensible, and feature-packed frontend toolkit. Build and customize with Sass, utilize prebuilt grid system and components, and bring projects to life with powerful JavaScript plugins. | - | - | - | ||
| #2,339 | Choose an open source license | Choose a License | Non-judgmental guidance on choosing a license for your open source project | - | - | - | ||
| #2,787 | Three.js – JavaScript 3D Library | - | - | - | en | ||
| #2,810 | Ruby on Rails: Compress the complexity of modern web apps | A full-stack web application framework written in Ruby, following the Model View Controller pattern, that includes everything you need to build modern database-backed web apps. | - | - | - | ||
| #2,899 | CoffeeScript | - | - | - | - | ||
| #2,903 | The Open Graph protocol | The Open Graph protocol enables any web page to become a rich object in a social graph. | - | - | - | ||
| #3,043 | Moment.js | Home | - | - | - | - | ||
| #3,339 | PhantomJS - Scriptable Headless Browser | - | - | - | - | ||
| #3,402 | Backbone.js | - | - | - | - | ||
| #3,644 | Jekyll • Simple, blog-aware, static sites | Transform your plain text into static websites and blogs | Transform your plain text into static websites and blogs | - | - | en | ||
| #3,655 | Reversing the Tide | Freedom House | Towards a New US Strategy to Support Democracy and Counter Authoritarianism Report of the Task Force on US Strategy to Support Democracy and Counter Authoritarianism Presented By Freedom House, Center for Strategic and International Studies, and Arizona State University McCain Institute | Freedom House | - | - | ||
| #3,936 | Home - OpenSearch | OpenSearch is a community-driven, Apache 2.0-licensed open source search and analytics suite that makes it easy to ingest, search, visualize, and analyze data. | - | - | - | ||
| #4,259 | Anxiety and Depression Association of America, ADAA | Anxiety and Depression Association of America, ADAA | ADAA is an international nonprofit membership organization dedicated to the prevention, treatment, and cure of anxiety, depression, OCD, PTSD, and co-occurring disorders through education, practice, and research. | - | - | en | ||
| #4,557 | <model-viewer> | Easily display interactive 3D models on the web and in AR | - | - | - | ||
| #4,574 | | Waterloo Data and Artificial Intelligence Institute | University of Waterloo | Artificial Intelligence (AI) is the study of machines and software that exhibit intelligence, such as learning, reasoning, planning, problem-solving, predicting | - | - | - | ||
| #4,584 | World Building Media Lab – USC School of Cinematic Arts | - | - | - | - | ||
| #4,658 | National Prion Disease Pathology Surveillance Center | Pathology | School of Medicine | Case Western Reserve University | Supported by the CDC and sponsored by the American Association of Neuropathologists CJD Surveillance The National Prion Disease Pathology Surveill... | - | - | - | ||
| #5,000 | Blooket – Fun, Free, Educational Games for Everyone | Blooket is an exciting new take on the modern classroom review game. It aims to match action with education to create the ultimate learning experience! | Blooket | - | en |
Complete Fastly website dataset in CSV. One-time purchase.
Secure checkout · 7-day download accessDistribution of websites using Fastly across countries in the TechLeads database.
| Country | Sites |
|---|---|
| United States(US) | 2,364 |
| United Kingdom(GB) | 232 |
| Canada(CA) | 112 |
| Australia(AU) | 70 |
| Germany(DE) | 36 |
| China(CN) | 33 |
| Japan(JP) | 28 |
| France(FR) | 27 |
| Brazil(BR) | 20 |
Technologies most frequently detected on the same websites as Fastly.
The most-used CDN technologies in the TechLeads index, by number of websites. Fastly accounts for 0.32% of CDN detections (151,892 websites).
| Technology | Websites | Share of CDN |
|---|---|---|
| Cloudflare | 18,632,492 | 39.3% |
| cdnjs | 5,228,508 | 11.0% |
| Cloudflare CDN | 4,947,830 | 10.4% |
| jsDelivr | 4,423,924 | 9.3% |
| Google Hosted Libraries | 4,415,516 | 9.3% |
| jQuery CDN | 2,594,145 | 5.5% |
| Google Cloud CDN | 1,741,939 | 3.7% |
| Unpkg | 1,419,948 | 3.0% |
| Amazon S3 | 1,032,312 | 2.2% |
| Amazon CloudFront | 809,064 | 1.7% |
Fastly market share report: competitors, rank and usage over time
TechLeads scans public websites and identifies Fastly from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 11, 2026. Counts only include websites we have scanned, so they can differ from other providers.
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Our comprehensive database contains 151,892 websites using Fastly, making it the most complete Fastly sites list available. This Fastly customer websites directory helps businesses detect websites using Fastly and identify potential leads.
The largest concentrations of Fastly websites are in US, GB, CA, based on our indexed country data.
Websites using Fastly commonly also use Varnish, jQuery, HSTS, Google Analytics, Open Graph — reflecting typical Fastly technology stacks.
Our Fastly technology detection system scans millions of websites to identify those powered by Fastly. This list of sites with Fastly includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with Fastly or exploring Fastly adoption trends, our database provides comprehensive insights.
Each entry in our Fastly sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using Fastly and reach out to potential customers or partners.
Get instant access to the full list of sites with Fastly in CSV format. Our dataset includes all 151,892 Fastly customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest Fastly powered websites.
| Italy(IT) | 20 |
| Spain(ES) | 19 |
| India(IN) | 14 |
| Colombia(CO) | 12 |
| Sweden(SE) | 12 |
| Finland(FI) | 11 |
| Taiwan(TW) | 11 |
| South Korea(KR) | 10 |
| Switzerland(CH) | 10 |
| Réunion(RE) | 7 |
| Netherlands(NL) | 7 |
| Poland(PL) | 6 |
| Ireland(IE) | 6 |
| Belgium(BE) | 6 |
| Mexico(MX) | 5 |
| Austria(AT) | 5 |
| Denmark(DK) | 5 |
| Argentina(AR) | 4 |
| EN(EN) | 4 |
| Israel(IL) | 3 |
| Hungary(HU) | 3 |
Sites where we first detected Fastly, by week (UTC, weeks start Monday). Counts follow our discovery coverage, so weekly totals can vary.