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andover.edu

https://andover.edu· First analyzed 04 May 2026· Updated 04 May 2026
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andover.edu
Desktop screenshot of andover.edu
Mobile screenshot of andover.edu
Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

76.223.34.124

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

helios.andover.edu.titan.andover.edu.auth1.dns.cogentco.com.auth2.dns.cogentco.com.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
593 KB
118 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Craft CMS

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

11 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Libraries

1
HTMX

Other

1
lazysizes

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B73/100
23
5
1
Meta Tags8/15
Content8/12
Headings6/8
Technical23/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
A
andover.eduandover.edu

Andover | An independent and inclusive coed boarding high school | An…

Pursuing academic excellence in a vibrant and inclusive community.

Title Length70 chars

Recommended: 50-60 chars (~414px / 580px)

Description Length66 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (86/106) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

21 URLs

21 sub-sitemaps

robots.txt

12 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100
Needs Work
6 11

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AI & LLM Readiness

D43/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
2/25
Citation
13/25

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:1,000
Token eff.:Optimal
Sections/1K:15

Structured Data

4 JSON-LD
Organization×1.1(min)BreadcrumbList

Citation Readiness

Opening Summary104w
Descriptive Headingsavg 1.7w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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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.
D
59/100
10
Passed
7
Critical
0
Warnings
Images & Alt Text
3/20
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
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
8/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
70/100
A
60 mg
CO₂e / view
592.7 KB
Page Weight
80%
Cleaner Than
New Visitor
68 mg
vs
Returning (cached)
34 mg
Annual (10K/mo)
7.2 kg
Emission Segments
Data Center
3 mg
Network
18 mg
Device
39 mg
Resource Breakdown
JavaScript
420.0 KB
Images
1.7 KB
CSS
102.7 KB
HTML
63.6 KB
Other
4.8 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

WAF

59d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.04.2026

Valid Until

03.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.andover.edu

SHA-256 Fingerprint

1F:5E:C5:0C:81:20:88:92:C2:F8:B3:7C:6F:00:FB:E2:AF:7E:7D:57...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cf-cache-status
BYPASS
cf-ray🇮🇹 Milan
9f69a8a26cc11f0c-MXP
content-encoding
⚡ Brotli(br)
content-type
text/html
date
Mon, 04 May 2026 18:44:48 GMT
last-modified
Sat, 02 May 2026 02:53:21 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

andover-edu.mail.protection.outlook.com

Domain Information

andover.edu

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.
B
76/100
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=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

miller-display + miller-text

WCAG Partial
61/100
Readability
/30
25/30

20px · LH 1.60

Hierarchy
/20
14/20

4x ratio

WCAG
/25
12/25

1:1 min contrast

Performance
/25
10/25

4 fonts

Heading Font

miller-display

Sans80px

Body Font

miller-text

Sans20px

Contrast Ratio

1:1

1 issue

Reading Comfort

~32 CPL

Narrow lines
80px
h1
80px
h2
50px
h3
24px
h4
20px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 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 4.0x larger than body text.

AAdobe FontsBuy on MyFontsFlesch 28

Color Palette

14 unique colors
Light
#0b3497
Primary· 15.399999999999999%
#273e7f
Accent· 12%
#6996c5
Secondary· 7.9%
#8ba8c6
Secondary· 7.5%
#69576f
Secondary· 7.2%
#867d9d
Secondary· 6.8%
#5a78b1
Secondary· 6.5%
#2f5395
Accent· 6.1%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

25 Resources

18
Scripts
7
Styles
7
Async
0
Defer

Top Script Sources

andover.edu(10)connect.facebook.net(3)googletagmanager.com(3)google-analytics.com(1)cdnjs.cloudflare.com(1)

Website Identity

An independent and inclusive coed boarding high school

HighSchool

Pursuing academic excellence in a vibrant and inclusive community.

www.andover.edu/
Location detected: 🇺🇸 United Statesvia ip
📧 Microsoft 365en-US

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Last analyzed: 04 May 2026 at 18:45

Historical Analysis & Change Tracking