shadcn.com

https://shadcn.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026

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shadcn.com

Mobile

Sponsored

Hosting Provider

Vercel

vercel.com

IP Address

76.76.21.21

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

Nameservers

dns1.registrar-servers.com.dns2.registrar-servers.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

522 ms10%

Speed Index

679 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

239 KB

69 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Styling

Tailwind CSS

Infrastructure

Platform

Vercel

CDN

Vercel Image

Technology Stack

3 Technologies Detected

Meta Frameworks

Next.js

CSS Frameworks

Tailwind CSS

Platforms

Vercel

SEO Analysis

D52/100

Meta Tags5/15

Content3/12

Headings3/8

Technical11/21

E-E-A-T3/7

Images6/7

Links4/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

shadcn.comshadcn.com

shadcn

design engineer

Title Length6 chars

Recommended: 50-60 chars (~37px / 580px)

Description Length15 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F30/100

Bot Access

20/25

Machine Read.

3/25

Schema Data

0/25

Citation

7/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:1%

Words:99

Token eff.:Too Short

Sections/1K:50

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.4w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

64/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

9/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

79/100

A+

24 mg

CO₂e / view

238.9 KB

Page Weight

95%

Cleaner Than

New Visitor

28 mg

Returning (cached)

14 mg

Annual (10K/mo)

2.9 kg

Emission Segments

Data Center

1 mg

Network

7 mg

Device

16 mg

Resource Breakdown

JavaScript

142.4 KB

Images

34.7 KB

CSS

4.3 KB

Fonts

39.8 KB

HTML

9.6 KB

Other

8.1 KB

Green Hosting Verified

Vercel

Provider Match

1 recommendation

•Carbon footprint recommendation preview...

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Security Score

36%Critical

Interactive

HTTPS

No WAF

45d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.03.2026

Valid Until

14.06.2026

Subject Alternative Names (1)

shadcn.com

SHA-256 Fingerprint

28:7F:04:87:87:A6:0E:91:F5:D6:36:7F:74:60:93:52:3D:87:17:6B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

age

2406949

cache-control

🟡 0s(public, max-age=0, must-revalidate)

content-disposition

inline

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (1)

smtp.google.com

Domain Information

shadcn.com

Domain Age

4y 7m

Created

17.09.2021

Expires

17.09.2026

Last Updated

18.08.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

72/100

Mobile Friendly

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

JetBrains Mono

WCAG AAA

65/100

Readability

/30

17/30

14px · LH 1.43

Hierarchy

/20

8/20

WCAG

/25

22/25

10.37:1 min contrast

Performance

/25

18/25

1 font · 1 req

Heading Font

JetBrains Mono

Mono

Body Font

JetBrains Mono

Mono14px

Contrast Ratio

10.37:1

WCAG AAA (≥7:1)

Reading Comfort

Single Font Family

left aligned

18px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 10.4:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 0

Color Palette

7 unique colors

5.26:1 AA Light

#ffffff

Background· 95.30000000000003%

#6b6c6d

Other· 0.6%

#93a6af

Primary· 0.8%

#e3ece8

Secondary· 0.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)

Website Identity

shadcn.com

4 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.📧 Google Workspaceen

Social Profiles

X (Twitter)GitHub

Sponsored

Last analyzed: 30 Apr 2026 at 09:55

Historical Analysis & Change Tracking