Caddy on new websites

Open-source web server with automatic HTTPS via Let's Encrypt out of the box.

Sites using Caddy
180,612
since Apr 2026
Last 30 days
3.5%
of new sites, to Oct 19
+0.5 pts on the 30 days before
Last 7 days
3.7%
of new sites, 7-day average
+0.1 pts on the week before
Rank in Server
#4
of 141 tools, all time
In our data since Apr 2026
Last seen Oct 20, 2026
Website caddyserver.com

What we found

  1. About 1 in 30 websites that went live in the last 30 days use Caddy (3.5%).[1]

Share of new sites using Caddy

0% 2% 4% 6% 10 Sep Oct

The line is the 7-day average share of new sites that use Caddy, since 10 September.

Who uses Caddy

Kind of site 57,494 sites with a known type
TypeSitesShareBar
Developer Tools 6,310 11.0%
Finance 5,646 9.8%
Health 5,589 9.7%
Games 5,221 9.1%
Productivity 5,200 9.0%
E-commerce 5,128 8.9%
Marketing 4,611 8.0%
Social 4,462 7.8%
Education 3,771 6.6%
AI 3,531 6.1%
Content 3,389 5.9%
Crypto 1,637 2.9%
Country[2] 27,303 sites with a likely country
CountrySitesShareBar
France 4,343 15.9%
UK 4,046 14.8%
US 3,255 11.9%
Australia 2,080 7.6%
India 1,739 6.4%
Canada 1,735 6.4%
Sweden 1,459 5.3%
Poland 1,419 5.2%
Germany 827 3.0%
Switzerland 729 2.7%
Brazil 688 2.5%
South Korea 490 1.8%
Domain ending 180,570 sites
EndingSitesShareBar
.com 102,771 56.9%
.app 8,630 4.8%
.online 6,207 3.4%
.net 5,062 2.8%
.org 4,854 2.7%
.fr 4,263 2.4%
.uk 4,134 2.3%
.site 3,475 1.9%
.xyz 3,317 1.8%
.store 3,105 1.7%
.ai 2,719 1.5%
.io 2,647 1.5%
Green hosting[3] 2,893 checked sites since Apr 2026
SitesGreenBar
Caddy 54%
All new sites 47%

Server on new sites

# Movement Tool Share of all sites Share of category Bar
1 – nginx 9.5% 37.4%
2 – LiteSpeed Web Server 6.6% 25.9%
3 – Apache 4.7% 18.3%
4 – Caddy 3.0% 11.7%
5 – OpenResty 0.9% 3.5%

All-time shares across the new sites we track: of all of them, and of the sites using any Server tool. All 141 in Server

Often used with Caddy

Tool Sites with both vs all new sites Bar
Base44 43,431 24x
React Router 51,283 4.3x

Tools that turn up far more often on Caddy sites than on new sites in general, and how many times as common each one is there.

Recently launched products built on Caddy

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.
  2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
  3. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards Caddy when we detect Caddy on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.