edx.org
edX | Online Courses, Certificates & Degrees from Leading Institutions
Last scanned Jul 29, 2026, 3:00 PM · 10 views
Overall score
Great
Summary
Find the online learning path for you, delivered by world-class institutions like Harvard, Google, Amazon, and more. This website uses Next.js behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance fair (65/100). Top issue: Title longer than 60 characters.
Find the online learning path for you, delivered by world-class institutions like Harvard, Google, Amazon, and more.
Top issues to fix
7 issues found · 1 high priority
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.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
Heavy page (2.4 MB)
PerformanceAim for under 2 MB: compress images and split large JavaScript bundles.
+1 more issue — details in the sections below.
SEO
4 issue(s) found
Performance
89 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
0 overall since Jul 21, 2026
- Overall
- 82
- SEO
- 75
- Security
- 100
- Performance
- 65
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Find the online learning path for you, delivered by world-class institutions like Harvard, Google, Amazon, and more.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- edX | Online Courses, Certificates & Degrees from Leading Institutions
- Description
- Find the online learning path for you, delivered by world-class institutions like Harvard, Google, Amazon, and more.
- Canonical
- https://www.edx.org
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- 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
- Amazon
- Subject
- proxy.violet.rveducation.io
- Valid from
- Sep 21, 2025
- Valid to
- Oct 20, 2026
- Days until expiry
- 83
- SAN domains
- proxy.violet.rveducation.io, www.edx.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 0 · H2 7 · H3 0
Links
79 internal · 13 external · 20 broken
Images
51 total · 0 missing alt
Scripts / Styles
339 scripts · 12 stylesheets
JS / CSS size
2.2 MB · 1.1 KB
Page size
2.4 MB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://edx.org
- Final URL
- https://www.edx.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 40 ms
- HTML size
- 2.4 MB
- Redirect chain
- https://edx.org → https://www.edx.org/
See something wrong on this report? Request a correction
Related websites
Same technology stack
arboportaal.nl
Home | Arboportaal
bithomp.com
XRP Explorer: Scan XRP Ledger | Transactions, Accounts, NFTs
analitikkimya.com.tr
Analitik Kimya — Laboratory & Cleanroom Supplies
ai-analytics.org
AI Analytics
ashbyprd.com
All-in-one Recruiting Software for Ambitious Teams | Ashby
bokepsmp.in
Bokep SMP Indo Viral Gacor HD - BokepSMP
Frequently asked questions
- What technology does edx.org use?
- edx.org is built with Next.js.
- Is edx.org secure (HTTPS)?
- Yes. edx.org uses TLS 1.3 with a certificate issued by Amazon, valid until Oct 20, 2026.
- Who hosts edx.org?
- Hosting provider information for edx.org is not available yet.
- What is edx.org's SEO score?
- edx.org scored 75/100 for SEO in the latest analysis (fair).
- What is edx.org's overall website score?
- edx.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Has edx.org's score changed over time?
- edx.org's overall score has stayed steady at 82/100 since Jul 21, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card