How many companies use Amazon S3?

TechLeads currently detects Amazon S3 on 1,028,023 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 1,510,954 pages in September 2026.

Who are Amazon S3's biggest competitors?

By number of websites, the largest CDN technologies besides Amazon S3 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 Amazon S3?

Websites using Amazon S3 include justgiving.com, 500px.com, sciencedaily.com, opensea.io, zapier.com, owasp.org. The full list of 1,028,023 websites can be exported as a CSV for $29.

Amazon S3 market share and customers

As of October 8, 2026, Amazon S3 is used by 1,028,023 websites in the TechLeads index: 2.2% of all CDN detections, the 9th most-used of 79 CDN technologies.

1,028,023

websites using Amazon S3

2.2%

share of CDN

of 79 in CDN

Cite this data

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

Citation

TechLeads. "Amazon S3 Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/amazon-s3/market-share

HTML link

<a href="https://techleads.fyi/technology/amazon-s3/market-share">Amazon S3 market share (TechLeads data)</a>

Amazon S3 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

Amazon S3 usage over time

In HTTP Archive's monthly crawl of public websites, Amazon S3 was detected on 1,510,954 pages in September 2026, up 19.2% from a year earlier (peak: 1,521,009). Among the 1,000 most-visited sites, it appeared on 149. 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.

Amazon S3 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.

US5,776
GB1,427
DE505
AU470
BR349
JP291
FR273
CA257
CO169
IT164

Companies using Amazon S3

justgiving.com
500px.com
sciencedaily.com
opensea.io · Opensea
zapier.com · Zapier
owasp.org
scratchjr.org
asana.com
teenage.engineering
globalnews.ca
brave.com
variety.com · Variety Australia

See all 1,028,023 websites using Amazon S3 or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects Amazon S3 from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Amazon S3'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

Amazon S3 accounts for 2.2% of CDN detections in the TechLeads index (1,028,023 websites), which makes it the 9th most-used of 79 CDN technologies we track.