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HSTS

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Security
Category
Software
Type

About HSTS

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Example Sites Using HSTS

21st.dev logo
21st.dev
Analyzed 5/5/2026
100%
manhwaland.cv logo
manhwaland.cv
Analyzed 5/1/2026
100%
sigstore.dev logo
sigstore.dev
Analyzed 4/23/2026
100%
tayahot.dev logo
tayahot.dev
Analyzed 4/22/2026
100%
gadget.dev logo
gadget.dev
Analyzed 4/17/2026
100%
talos.dev logo
talos.dev
Analyzed 4/17/2026
100%
zgato.dev logo
zgato.dev
Analyzed 4/12/2026
100%
cube.dev logo
cube.dev
Analyzed 4/12/2026
100%
farmlabs.dev logo
farmlabs.dev
Analyzed 4/12/2026
100%
continue.dev logo
continue.dev
Analyzed 4/9/2026
100%
dartlang.org logo
dartlang.org
Analyzed 4/9/2026
100%
merge.dev logo
merge.dev
Analyzed 4/8/2026
100%
redact.dev logo
redact.dev
Analyzed 4/11/2026
100%
igamesapi.dev logo
igamesapi.dev
Analyzed 4/5/2026
100%
diversion.dev logo
diversion.dev
Analyzed 4/10/2026
100%
convex.dev logo
convex.dev
Analyzed 3/24/2026
100%
zope.org logo
zope.org
Analyzed 3/24/2026
100%
truebill.dev logo
truebill.dev
Analyzed 3/23/2026
100%
gadget.app logo
gadget.app
Analyzed 3/22/2026
100%
v8.dev logo
v8.dev
Analyzed 3/19/2026
100%
orbstack.dev logo
orbstack.dev
Analyzed 3/19/2026
100%
aikido.dev logo
aikido.dev
Analyzed 3/13/2026
100%
hivehub.dev logo
hivehub.dev
Analyzed 3/9/2026
100%
socket.dev logo
socket.dev
Analyzed 3/8/2026
100%
getsolara.dev logo
getsolara.dev
Analyzed 3/8/2026
100%
semgrep.dev logo
semgrep.dev
Analyzed 2/27/2026
100%
shopify.dev logo
shopify.dev
Analyzed 2/27/2026
100%
voicepatrol.dev logo
voicepatrol.dev
Analyzed 2/25/2026
100%
tarkov.dev logo
tarkov.dev
Analyzed 2/21/2026
100%
vitejs.dev logo
vitejs.dev
Analyzed 2/21/2026
100%
spdx.org logo
spdx.org
Analyzed 2/20/2026
100%
angular.dev logo
angular.dev
Analyzed 2/19/2026
100%
paodayag.dev logo
paodayag.dev
Analyzed 2/18/2026
100%
svelte.dev logo
svelte.dev
Analyzed 2/18/2026
100%
comick.dev logo
comick.dev
Analyzed 2/23/2026
100%
html5rocks.com logo
html5rocks.com
Analyzed 2/17/2026
100%
hathora.dev logo
hathora.dev
Analyzed 2/17/2026
100%
daily.dev logo
daily.dev
Analyzed 2/17/2026
100%
vite.dev logo
vite.dev
Analyzed 2/17/2026
100%
github.dev logo
github.dev
Analyzed 2/17/2026
100%
zenn.dev logo
zenn.dev
Analyzed 2/16/2026
100%
shuttle.app logo
shuttle.app
Analyzed 2/16/2026
100%
amp.dev logo
amp.dev
Analyzed 2/16/2026
100%
zed.dev logo
zed.dev
Analyzed 2/16/2026
100%
skypack.dev logo
skypack.dev
Analyzed 2/16/2026
100%
convex.cloud logo
convex.cloud
Analyzed 2/15/2026
100%
reactnative.dev logo
reactnative.dev
Analyzed 2/15/2026
100%
chakra.dev logo
chakra.dev
Analyzed 2/14/2026
100%
aurora.dev logo
aurora.dev
Analyzed 2/16/2026
100%

Wondering if your favorite site uses HSTS?

There's only one way to find out.

Analyze a Site