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21st.dev

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AI Policy
Tech
InfraStatus
27 technologies5 categories2 AI tools

21st.dev is built on Next.js with Google Tag Manager and HSTS.

Analytics are handled by Google Tag Manager and Google Analytics. Infrastructure includes Cloudflare DNS. 2 AI tools are detected, including AI Powered and AI Assistant.

Tech Stack Highlights

radix-ui.com logoRadix UIUI frameworksnextjs.org logoNext.jsJavaScript frameworks
A
Amazon SESEmail
P
PostmarkEmail
S
SendGridEmail

AI Technologies2

A
AI Powered
LLM Providers
75%
1 evidence signal
TextAI-powered
A
AI Assistant
LLM Providers
75%
1 evidence signal
TextAI assistant

Frameworks & Languages7

nextjs.org logo
Next.js
JavaScript frameworks
100%
93 evidence signals
HeaderNext\.js(?: ([\d.]+))?\;version:\1: Next.js
HTML/_next/static/
Scripthttps://21st.dev/_next/static/chunks/2624f00b-c991669fecab1cdb.js
Scripthttps://21st.dev/_next/static/chunks/938-15e2edd18938662d.js
Scripthttps://21st.dev/_next/static/chunks/main-app-c39e107fcc9560b2.js
Scripthttps://21st.dev/_next/static/chunks/0206212e-8cb87bf36e90ea71.js
Scripthttps://21st.dev/_next/static/chunks/3dbc7fab-0111de3c3d2ee649.js
Scripthttps://21st.dev/_next/static/chunks/2d2d3c67-4d6f2c780fa8c97c.js
Scripthttps://21st.dev/_next/static/chunks/8a20a44a-21387284be2cc85b.js
Scripthttps://21st.dev/_next/static/chunks/fcea31f8-f714e12f8a99fb25.js
Scripthttps://21st.dev/_next/static/chunks/c510f067-5d3ba92de4b04efd.js
Scripthttps://21st.dev/_next/static/chunks/c15208c6-3a2b71e3892a69d1.js
Scripthttps://21st.dev/_next/static/chunks/2c423691-061d149debc610d7.js
Scripthttps://21st.dev/_next/static/chunks/238edd4e-e9521e88aa1ac6c7.js
Scripthttps://21st.dev/_next/static/chunks/4bb1dc3e-375f9a4476a178e2.js
Scripthttps://21st.dev/_next/static/chunks/46820-8069704dfba61cd5.js
Scripthttps://21st.dev/_next/static/chunks/62825-7070d644513004ff.js
Scripthttps://21st.dev/_next/static/chunks/37925-6ab0ce5e58a20295.js
Scripthttps://21st.dev/_next/static/chunks/62146-eabef9963bb83f02.js
Scripthttps://21st.dev/_next/static/chunks/8329-67123a98fef302b8.js
Scripthttps://21st.dev/_next/static/chunks/47988-c022485efe742993.js
Scripthttps://21st.dev/_next/static/chunks/80329-9e5ff10cd1a47246.js
Scripthttps://21st.dev/_next/static/chunks/49550-2540976696b2e5d9.js
Scripthttps://21st.dev/_next/static/chunks/76817-1dee100be0d7898a.js
Scripthttps://21st.dev/_next/static/chunks/45942-1b1cd24a5ef416c5.js
Scripthttps://21st.dev/_next/static/chunks/306-35018019eff447cf.js
Scripthttps://21st.dev/_next/static/chunks/31668-397e4a12725ceab5.js
Scripthttps://21st.dev/_next/static/chunks/89623-d5ef884207e7c671.js
Scripthttps://21st.dev/_next/static/chunks/9181-f5dc0189259d2a07.js
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Scripthttps://21st.dev/_next/static/chunks/40681-2f5c65af9ace26de.js
Scripthttps://21st.dev/_next/static/chunks/76304-a8b3a0f72add51fa.js
Scripthttps://21st.dev/_next/static/chunks/73769-78620782515048d6.js
Scripthttps://21st.dev/_next/static/chunks/51333-5c8bf95cd542f9a1.js
Scripthttps://21st.dev/_next/static/chunks/50538-1447867e8388a538.js
Scripthttps://21st.dev/_next/static/chunks/11729-74b2f6d71779c932.js
Scripthttps://21st.dev/_next/static/chunks/94439-581d672db534634e.js
Scripthttps://21st.dev/_next/static/chunks/54074-461fee91ddb0bcce.js
Scripthttps://21st.dev/_next/static/chunks/11088-9bb222a34d7f963e.js
Scripthttps://21st.dev/_next/static/chunks/3887-39d0fa8b638ad011.js
Scripthttps://21st.dev/_next/static/chunks/56879-76b9be7fe97de743.js
Scripthttps://21st.dev/_next/static/chunks/27930-e188a5dec259160d.js
Scripthttps://21st.dev/_next/static/chunks/36420-acc3520e3d385631.js
Scripthttps://21st.dev/_next/static/chunks/67057-8c13cab12470aad6.js
Scripthttps://21st.dev/_next/static/chunks/33619-844074cde7111ffc.js
Scripthttps://21st.dev/_next/static/chunks/8719-7c5e531e237c8493.js
Scripthttps://21st.dev/_next/static/chunks/61823-25998bb69bd278cd.js
Scripthttps://21st.dev/_next/static/chunks/40811-cde6bbc01ff84ffa.js
Scripthttps://21st.dev/_next/static/chunks/24695-017d08b1b69f81ba.js
Scripthttps://21st.dev/_next/static/chunks/app/(news)/layout-b120d9f6f9df1f32.js
Scripthttps://21st.dev/_next/static/chunks/23469-92f0f7a5c305741c.js
Scripthttps://21st.dev/_next/static/chunks/58669-bb4fc55be9c40b0d.js
Scripthttps://21st.dev/_next/static/chunks/27854-55af3698add4aca6.js
Scripthttps://21st.dev/_next/static/chunks/52583-3ad451ce8254efcc.js
Scripthttps://21st.dev/_next/static/chunks/27363-76c0da02290eae5d.js
Scripthttps://21st.dev/_next/static/chunks/82417-bd4e98f8df2f9aac.js
Scripthttps://21st.dev/_next/static/chunks/98708-c34239654603f526.js
Scripthttps://21st.dev/_next/static/chunks/48518-706a16ed570bf251.js
Scripthttps://21st.dev/_next/static/chunks/45587-8081d9d121b935bd.js
Scripthttps://21st.dev/_next/static/chunks/37360-13142ec52ea09194.js
Scripthttps://21st.dev/_next/static/chunks/11873-5921efe0fa11c23e.js
Scripthttps://21st.dev/_next/static/chunks/97113-63d9dbd3cb9b475f.js
Scripthttps://21st.dev/_next/static/chunks/13830-9de3db43d78cfcd8.js
Scripthttps://21st.dev/_next/static/chunks/47160-fc8ffa9db888c83b.js
Scripthttps://21st.dev/_next/static/chunks/55022-91e198fb14591a70.js
Scripthttps://21st.dev/_next/static/chunks/12741-fd70ad8a8d0eb056.js
Scripthttps://21st.dev/_next/static/chunks/7808-cfe2b550b25c3087.js
Scripthttps://21st.dev/_next/static/chunks/60761-7b5064daeb9486e0.js
Scripthttps://21st.dev/_next/static/chunks/31442-c823eaa6824ad0a7.js
Scripthttps://21st.dev/_next/static/chunks/5327-7129e6544427c495.js
Scripthttps://21st.dev/_next/static/chunks/app/(public)/layout-e06075f096d4c9b7.js
Scripthttps://21st.dev/_next/static/chunks/app/global-error-f2da0fc03d265a1e.js
Scripthttps://21st.dev/_next/static/chunks/45027-3a80d3fe2e019f6d.js
Scripthttps://21st.dev/_next/static/chunks/app/layout-7c5ca75cc5b2a4c0.js
Scripthttps://21st.dev/_next/static/chunks/70925-9926eb8fdf9fba2e.js
Scripthttps://21st.dev/_next/static/chunks/11032-eae040ac4036f6c4.js
Scripthttps://21st.dev/_next/static/chunks/73742-1d4f45a796d81935.js
Scripthttps://21st.dev/_next/static/chunks/63228-b738236f031184d4.js
Scripthttps://21st.dev/_next/static/chunks/70865-fc3068e769db3c8a.js
Scripthttps://21st.dev/_next/static/chunks/59733-f60ff4e797688dd2.js
Scripthttps://21st.dev/_next/static/chunks/56639-b8473ebd38f7748c.js
Scripthttps://21st.dev/_next/static/chunks/1070-0248c7604db8ed9f.js
Scripthttps://21st.dev/_next/static/chunks/app/(public)/home/page-f66742a5f8be3314.js
Scripthttps://21st.dev/_next/static/chunks/polyfills-42372ed130431b0a.js
Scripthttps://21st.dev/_next/static/chunks/webpack-4ce53718386cc41d.js
stylesheet/_next/static/css/6d7e56fbbf71be23.css
stylesheet/_next/static/css/bd73ec8cd010e7e2.css
stylesheet/_next/static/css/2ccc5c9de9175916.css
radix-ui.com logo
Radix UI
UI frameworks
100%
2 evidence signals
HTMLdata-radix-
DOMradix-state
tailwindcss.com logo
Tailwind CSS
UI frameworks
75%
1 evidence signal
css--tw-
react.dev logo
React
JavaScript frameworks
75%
1 evidence signal
HTMLimplied by Next.js
nodejs.org logo
Node.js
Programming languages
75%
1 evidence signal
HTMLimplied by Next.js
ui.shadcn.com logo
shadcn/ui
UI frameworks
75%
1 evidence signal
HTMLdata-radix-
vercel.com logo
Vercel
Development
75%
2 evidence signals
Headersfo1::sfo1::8jtrf-1777941848750-f4ccfee468a5
HeaderVercel: Vercel

Analytics & Marketing13

tagmanager.google.com logo
Google Tag Manager
Tag managers
100%
3 evidence signals
HTMLgoogletagmanager.com/gtm.js
JS Globalgoogle_tag_manager → object
JS GlobaldataLayer → object
analytics.google.com logo
Google Analytics
Analytics
100%
3 evidence signals
Cookie_ga
Scripthttps://www.googletagmanager.com/gtag/js?id=G-X7C2K3V7GX
JS Globalgtag → function
H
HubSpot
Marketing automation
100%
1 evidence signal
dnsDKIM selector: hs1
www.klaviyo.com logo
Klaviyo
Marketing automation
100%
1 evidence signal
dnsDKIM selector: kl
M
MailChimp
Marketing automation
100%
1 evidence signal
dnsDKIM selector: k1
C
Customer.io
Marketing automation
100%
1 evidence signal
dnsDKIM selector: cio
R
Resend
Email
100%
1 evidence signal
dnsDKIM selector: resend
G
Google Workspace
Email
100%
1 evidence signal
dnsMX: aspmx.l.google.com
M
Microsoft 365
Email
100%
1 evidence signal
dnsDKIM selector: selector1
S
SendGrid
Email
100%
1 evidence signal
dnsDKIM selector: s1
P
Postmark
Email
100%
1 evidence signal
dnsDKIM selector: pm
A
Amazon SES
Email
100%
1 evidence signal
dnsDKIM selector: amazonses
posthog.com logo
PostHog
Analytics
75%
1 evidence signal
Cookieph_

Infrastructure & Security3

www.rfc-editor.org logo
HSTS
Security
100%
2 evidence signals
Headermax-age=63072000
URLhttps://21st.dev/home
C
Cloudflare DNS
PaaS
100%
1 evidence signal
dnsNS: wanda.ns.cloudflare.com
clerk.dev logo
Clerk
Authentication
75%
1 evidence signal
HTMLdata-clerk-

Libraries & Utilities2

github.com logo
core-js
JavaScript libraries
75%
1 evidence signal
JS Global__core-js_shared__ → object
llmstxt.org logo
llms.txt
AI Policy & Governance
75%
1 evidence signal
HTML/llms.txt

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