How many companies use Caddy?

TechLeads currently detects Caddy on 130,401 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 67,039 pages in September 2026.

Who are Caddy's biggest competitors?

By number of websites, the largest Web servers technologies besides Caddy are Nginx (8,387,228), Apache HTTP Server (5,337,900), LiteSpeed (2,330,787), OpenResty (1,207,916), Next.js (1,032,904).

Which companies use Caddy?

Websites using Caddy include tldp.org, rclone.org, xmlrpc.com, aryel.io, webauthn.io, ninchanese.com. The full list of 130,401 websites can be exported as a CSV for $29.

Caddy market share and customers

As of October 8, 2026, Caddy is used by 130,401 websites in the TechLeads index: 0.65% of all Web servers detections, the 9th most-used of 81 Web servers technologies.

130,401

websites using Caddy

0.65%

share of Web servers

of 81 in Web servers

Cite this data

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

Citation

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

HTML link

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

Caddy vs competitors in Web servers

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

#	Technology	Websites	Share
1	Nginx	8,387,228	41.7%
2	Apache HTTP Server	5,337,900	26.5%
3	LiteSpeed	2,330,787	11.6%
4	OpenResty	1,207,916	6.0%
5	Next.js	1,032,904	5.1%
6	IIS	743,031	3.7%
7	Express	336,208

Caddy usage over time

In HTTP Archive's monthly crawl of public websites, Caddy was detected on 67,039 pages in September 2026, down 31.2% from a year earlier (peak: 143,408). HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other Web Servers technologies in HTTP Archive: Apache HTTP Server 8,652,140, LiteSpeed 3,072,599, IIS 1,189,059, OpenResty 739,473, OpenGSE 396,103.

Caddy 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.

US60
DE52
AT38
FR24
GB23
CA8
IL7
SE5
CZ5
NL5

Companies using Caddy

tldp.org
rclone.org
xmlrpc.com
aryel.io
webauthn.io · WebAuthn.io
ninchanese.com · Ninchanese
macromates.com
breez.technology · Breez
i3wm.org
epcountyvotes.com
matthewfl.com · Matthew Francis-Landau
gotocph.com

See all 130,401 websites using Caddy or download the full list as a CSV for $29.

How these numbers are calculated

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

FAQ

Caddy accounts for 0.65% of Web servers detections in the TechLeads index (130,401 websites), which makes it the 9th most-used of 81 Web servers technologies we track.