How many companies use Fastly?

TechLeads currently detects Fastly on 147,995 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 234,784 pages in September 2026.

Who are Fastly's biggest competitors?

By number of websites, the largest CDN technologies besides Fastly are Cloudflare (18,156,470), cdnjs (5,209,454), Cloudflare CDN (4,607,183), Google Hosted Libraries (4,400,998), jsDelivr (4,395,053).

Which companies use Fastly?

Websites using Fastly include issuu.com, owasp.org, globalwellnessinstitute.org, git-scm.com, elmundo.es, buzzfeed.com. The full list of 147,995 websites can be exported as a CSV for $29.

Fastly market share and customers

As of October 8, 2026, Fastly is used by 147,995 websites in the TechLeads index: 0.32% of all CDN detections, the 14th most-used of 79 CDN technologies.

147,995

websites using Fastly

0.32%

share of CDN

#14

of 79 in CDN

Cite this data

Quoting these numbers? Credit TechLeads with a link to this page.

Citation

TechLeads. "Fastly Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/fastly/market-share

HTML link

<a href="https://techleads.fyi/technology/fastly/market-share">Fastly market share (TechLeads data)</a>

Fastly vs competitors in CDN

Websites using each technology in the TechLeads index, and its share of all CDN detections.

#	Technology	Websites	Share
1	Cloudflare	18,156,470	39.1%
2	cdnjs	5,209,454	11.2%
3	Cloudflare CDN	4,607,183	9.9%
4	Google Hosted Libraries	4,400,998	9.5%
5	jsDelivr	4,395,053	9.5%
6	jQuery CDN	2,585,013	5.6%
7	Google Cloud CDN

Fastly usage over time

In HTTP Archive's monthly crawl of public websites, Fastly was detected on 234,784 pages in September 2026, up 6.9% from a year earlier (peak: 1,107,409). Among the 1,000 most-visited sites, it appeared on 3. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other CDN technologies in HTTP Archive: Cloudflare 22,015,531, cdnjs 5,518,583, jsDelivr 4,709,988, Google Hosted Libraries 3,723,642, jQuery CDN 2,004,819.

Fastly customers by country

Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.

US2,364
GB231
CA111
AU70
DE36
CN33
FR27
JP27
BR20
IT20

Companies using Fastly

issuu.com
owasp.org
globalwellnessinstitute.org · Global Wellness Institute
git-scm.com
elmundo.es · Unidad Editorial
buzzfeed.com · BuzzFeed
newrelic.com
getbootstrap.com
choosealicense.com
threejs.org
rubyonrails.org
coffeescript.org

See all 147,995 websites using Fastly or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects Fastly from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Fastly's website count divided by the website counts of all CDN technologies we track; a site using two CDN tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.

FAQ

Fastly accounts for 0.32% of CDN detections in the TechLeads index (147,995 websites), which makes it the 14th most-used of 79 CDN technologies we track.