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academicearth.org

https://academicearth.org· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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academicearth.org
Desktop screenshot of academicearth.org
Mobile screenshot of academicearth.org
Mobile

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Hosting Provider

WP Engine
wpengine.com

IP Address

141.193.213.20

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-1169.awsdns-18.org.ns-182.awsdns-22.com.ns-1874.awsdns-42.co.uk.ns-568.awsdns-07.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
575 ms10%
Speed Index
748 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
304 KB
54 requests

Image Optimization

Lazy LoadResponsiveCloudinary
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
aeorg-themeCustom

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

9 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Plugins

2
Auth0
Yoast SEO

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B70/100
20
7
2
Meta Tags15/15
Content8/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images2/7
Links2/5
URL5/5
Social3/5
Freshness4/4
Mobile4/4
Indexability3/3
A
academicearth.orgacademicearth.org

AcademicEarth.org - Free Online Courses From Top Colleges

Find free online courses, lectures, and videos from the best colleges in the country. Take online classes from schools like Yale, MIT and Stanford.

Title Length57 chars

Recommended: 50-60 chars (~348px / 580px)

Description Length147 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (7/7) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

7 URLs

7 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100
Poor
5 13

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

D41/100
Bot Access
19/25
Machine Read.
4/25
Schema Data
5/25
Citation
13/25

AI Bot Access

13/14 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
nav
Text ratio:2%
Words:287
Token eff.:Too Short
Sections/1K:24.4
Depth:1/5

Structured Data

3 JSON-LD
Organization×1.1(min)microdataWebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary99w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
AI readiness recommendation preview...
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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
76/100
12
Passed
3
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
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.
84/100
A+
31 mg
CO₂e / view
304.3 KB
Page Weight
90%
Cleaner Than
New Visitor
35 mg
vs
Returning (cached)
18 mg
Annual (10K/mo)
3.7 kg
Emission Segments
Data Center
2 mg
Network
9 mg
Device
20 mg
Resource Breakdown
JavaScript
51.9 KB
Images
191.5 KB
CSS
29.8 KB
Fonts
805 B
HTML
30.4 KB
Green Hosting Verified
WP Engine
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

26%Critical
Interactive

HTTPS

WAF

55d

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+H3

Valid From

23.03.2026

Valid Until

21.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

academicearth.org

SHA-256 Fingerprint

04:5C:B9:83:C6:5A:53:89:70:56:0A:E1:06:04:12:DF:F6:87:3E:49...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟢 1 Month(max-age=15552000, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9f24ce954cf3ed49-MXP
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

academicearth-org.mail.protection.outlook.com

Domain Information

academicearth.org

Domain Age
18y 1m

Created

04.03.2008

Expires

04.03.2027

Last Updated

06.02.2026

Registrar

GoDaddy Corporate Domains, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
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
70/100
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
initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG AAA
74/100
Readability
/30
25/30

16px · LH 1.43

Hierarchy
/20
6/20
WCAG
/25
24/25

8.47:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

8.47:1

WCAG AAA (≥7:1)

Reading Comfort

~57 CPL

Optimal (45–75)
42px
h2
15px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

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

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.5:1).

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

GGoogle FontsFlesch 25

Color Palette

8 unique colors
2.86:1 Fail Light
#f3f3f3
Background· 80.7%
#899297
Other· 3%
#175e67
Primary· 3.2%
#b7c5c9
Secondary· 2.8%
#38492a
Secondary· 1.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

24 Resources

18
Scripts
6
Styles
5
Async
0
Defer

Top Script Sources

sonic-ui.highereducation.com(7)academicearth.org(4)googletagmanager.com(2)content.cmn.com(2)bam.nr-data.net(1)

Website Identity

AcademicEarth.org - Free Online Courses From Top Colleges

Find free online courses, lectures, and videos from the best colleges in the country. Take online classes from schools like Yale, MIT and Stanford.

academicearth.org/
18 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy Corporate Domains, LLC📧 Microsoft 365en

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Last analyzed: 26 Apr 2026 at 10:12

Historical Analysis & Change Tracking