StackOptic
Back to Search
shelby.com favicon

shelby.com

https://shelby.com· First analyzed 17 May 2026· Updated 17 May 2026
Export
shelby.com
Desktop screenshot of shelby.com
Mobile screenshot of shelby.com
Mobile

Sponsored

Hosting Provider

Shelby American, Inc.

IP Address

136.179.20.245

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Las Vegas, United States

ASN

AS23005

Organization

Shelby American, Inc.

Nameservers

ns.shelbyamerican.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
989 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.3 MB
106 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Shelby American, Inc.

Technology Stack

10 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.6.3

Other

1
Modernizr

Icon Libraries

1
Font Awesome

Customer Support

1
Zendesk

SEO Analysis

D57/100
16
9
1
Meta Tags7/15
Content12/12
Headings8/8
Technical11/21
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile2/4
Indexability3/3
S
shelby.comshelby.com

Shelby American Inc. > Home

Welcome to Shelby American—home of Carroll Shelby’s legendary performance cars and racing legacy. Explore iconic vehicles, join Team Shelby, and celebrate ov...

Description truncated.
Title Length27 chars

Recommended: 50-60 chars (~164px / 580px)

Description Length239 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (74/74) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Local SEO

Local Search Readiness

18/100
Poor
5 10 2

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

Sponsored

AI & LLM Readiness

D48/100
Bot Access
20/25
Machine Read.
16/25
Schema Data
0/25
Citation
12/25

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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:4%
Words:525
Token eff.:Optimal
Sections/1K:13.3
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary66w
Descriptive Headingsavg 4.1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
C
60/100
9
Passed
4
Critical
1
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
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...
Upgrade to view recommendations

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.
10/100
F
540 mg
CO₂e / view
4.3 MB
Page Weight
15%
Cleaner Than
New Visitor
617 mg
vs
Returning (cached)
309 mg
Annual (10K/mo)
64.8 kg
Emission Segments
Data Center
121 mg
Network
130 mg
Device
290 mg
Resource Breakdown
JavaScript
250.5 KB
Images
3.5 MB
CSS
463.5 KB
HTML
83.5 KB
Other
310 B
Green Hosting Not Verified
Shelby American, Inc.
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

63d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

20.04.2026

Valid Until

19.07.2026

Subject Alternative Names (3)

build.shelby.comshelby.comwww.shelby.com

SHA-256 Fingerprint

99:22:65:6D:D6:BC:19:BC:88:1F:86:09:AD:BF:AF:5D:F7:0F:55:F4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🟣 Private(private)
content-length
85226
content-type
text/html; charset=utf-8
date
Sun, 17 May 2026 13:20:02 GMT
strict-transport-security
max-age=31536000; redirectHttpToHttps; includeSubDomains; pr...
x-content-type-options
nosniff
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

shelby-com.mail.protection.outlook.com

Domain Information

shelby.com

Domain Age
31y 8m

Created

25.09.1994

Expires

31.12.2026

Last Updated

13.11.2023

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
62/100
Mobile Friendly1 breakpoint
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

source-sans-pro

WCAG AA
72/100
Readability
/30
25/30

20px · LH 1.50

Hierarchy
/20
16/20

2x ratio · ✓ H1→H6

WCAG
/25
15/25

5.02:1 min contrast

Performance
/25
16/25

1 font

Heading Font

source-sans-pro

Sans40px

Body Font

source-sans-pro

Sans20px

Contrast Ratio

5.02:1

WCAG AA (≥4.5:1)

Reading Comfort

~36 CPL

Narrow lines
40px
h1
32px
h2
28px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

AAdobe FontsBuy on MyFontsFlesch 33

Color Palette

9 unique colors
21:1 AAA Light
#ffffff
Background· 27.7%
#000000
Text· 20.099999999999998%
#a7bfd5
Primary· 8.1%
#4c6074
Secondary· 6.5%
#e0e4e8
Secondary· 3.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

22 Resources

13
Scripts
9
Styles
1
Async
0
Defer

Top Script Sources

local(11)kit.fontawesome.com(1)googletagmanager.com(1)

Website Identity

shelby.com

7029427325
31 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLC📧 Microsoft 365en

Sponsored

Last analyzed: 17 May 2026 at 13:23

Historical Analysis & Change Tracking