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castleton.edu

https://castleton.edu· First analyzed 24 May 2026· Updated 24 May 2026
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castleton.edu
Desktop screenshot of castleton.edu
Mobile screenshot of castleton.edu
Mobile

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Hosting Provider

Rackspace
rackspace.com

IP Address

69.20.113.171

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Washington, United States

ASN

AS27357

Organization

MonsterCommerce LLC

Server

Nginx

Nameservers

ns51.constellix.net.ns61.constellix.net.ns11.constellix.com.ns21.constellix.com.+2 more

Performance

97

Core Web Vitals

Weight

First Contentful Paint
971 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
496 KB
53 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Rackspace

Technology Stack

10 Technologies Detected

Advertising

3
Google AdsLinkedIn AdsSnapchat Pixel

Analytics

2
Google Analytics
Facebook Pixel

Other

1
Modernizr

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

Languages

1
PHPv7.4.33

SEO Analysis

D53/100
14
8
1
Meta Tags9/15
Content6/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social2/5
Freshness0/4
Mobile4/4
Indexability3/3
C
castleton.educastleton.edu

Castleton University

Castleton University is a public liberal arts university in western Vermont with over 75 career-focused undergraduate and graduate degree programs.

Title Length20 chars

Recommended: 50-60 chars (~117px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (5/5) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

857 URLs

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

11/100
Poor
4 12 2

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

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AI & LLM Readiness

F30/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
Citation
5/25

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
navheader/footer
Text ratio:7%
Words:237
Token eff.:Too Short
Sections/1K:12.7
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 2.7w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

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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.
B
74/100
11
Passed
3
Critical
0
Warnings
Images & Alt Text
10/20
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
61/100
A
50 mg
CO₂e / view
495.5 KB
Page Weight
90%
Cleaner Than
New Visitor
57 mg
vs
Returning (cached)
29 mg
Annual (10K/mo)
6.0 kg
Emission Segments
Data Center
3 mg
Network
15 mg
Device
33 mg
Resource Breakdown
JavaScript
235.1 KB
CSS
255.2 KB
HTML
4.4 KB
Other
822 B
Green Hosting Verified
Rackspace
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

31%Critical
Interactive

HTTPS

No WAF

52d

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/1.1

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (2)

castleton.eduwww.castleton.edu

SHA-256 Fingerprint

FD:38:6A:59:CE:E1:5F:93:CE:62:CA:0D:BC:C6:5C:75:4E:FB:5A:65...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-length
4212
content-type
text/html;charset=UTF-8
date
Sun, 24 May 2026 12:46:11 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

castleton-edu.mail.protection.outlook.com

Domain Information

castleton.edu

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
D
43/100
Not 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, height=device-height, initial-scale=1, maximum-scale=1, user-scalable=no
4 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Clarendon + Whitney A

WCAG Partial
64/100
Readability
/30
22/30

25px · LH 1.70

Hierarchy
/20
15/20

2.32x ratio

WCAG
/25
16/25

1:1 min contrast

Performance
/25
11/25

3 fonts · 1 req

Heading Font

Clarendon

Sans58px

Body Font

Whitney A

Sans25px

Contrast Ratio

1:1

9 issues

Reading Comfort

~34 CPL

Narrow lines
58px
h1
38px
h2
25px
p

✅ Excellent readability: 25px body text is ideal for all devices.

❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 11

Color Palette

6 unique colors
Light
#efefef
Background· 36.8%
#00563b
Primary· 37.3%
#56746c
Secondary· 6.7%
#21302d
Secondary· 6.2%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

3
Facebook PixelMid-Market
LinkedIn AdsEnterprise
Snapchat PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

5

Total Tools

1

Enterprise

2

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

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Scripts & Styles

22 Resources

20
Scripts
2
Styles
15
Async
1
Defer

Top Script Sources

googletagmanager.com(6)connect.facebook.net(3)castleton.edu(2)youvisit.com(2)tr.snapchat.com(1)

Website Identity

castleton.edu

info@castleton.edu
Location detected: 🇺🇸 United Statesvia ip
📧 Microsoft 365en

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Last analyzed: 24 May 2026 at 12:46

Historical Analysis & Change Tracking