academicearth.org
AcademicEarth.org - Free Online Courses From Top Colleges
Last scanned Jul 26, 2026, 1:49 PM
Overall score
Great
Summary
Find free online courses, lectures, and videos from the best colleges in the country. This website uses WordPress behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.
Find free online courses, lectures, and videos from the best colleges in the country. Take online classes from schools like Yale, MIT and Stanford.
Top issues to fix
9 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
257 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Find free online courses, lectures, and videos from the best colleges in the country. Take online classes from schools like Yale, MIT and Stanford.
Meta tags
- Title
- AcademicEarth.org - Free Online Courses From Top Colleges
- Description
- Find free online courses, lectures, and videos from the best colleges in the country. Take online classes from schools like Yale, MIT and Stanford.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- academicearth.org
- Valid from
- Jul 19, 2026
- Valid to
- Oct 17, 2026
- Days until expiry
- 80
- SAN domains
- academicearth.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 5 · H3 7
Links
48 internal · 4 external · 20 broken
Images
7 total · 0 missing alt
Scripts / Styles
15 scripts · 4 stylesheets
JS / CSS size
66.2 KB · 13.5 KB
Page size
102 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://academicearth.org
- Final URL
- https://academicearth.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 255 ms
- HTML size
- 102 KB
- Redirect chain
- https://academicearth.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does academicearth.org use?
- academicearth.org is built with WordPress, jQuery, Google Analytics.
- Is academicearth.org secure (HTTPS)?
- Yes. academicearth.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 17, 2026.
- Who hosts academicearth.org?
- Hosting provider information for academicearth.org is not available yet.
- What is academicearth.org's SEO score?
- academicearth.org scored 75/100 for SEO in the latest analysis (fair).
- What is academicearth.org's overall website score?
- academicearth.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card