khanacademy.org
Client Challenge
Last scanned Jul 29, 2026, 2:00 PM · 8 views
Overall score
Fair
Summary
SEO is fair (50/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
Top issues to fix
12 issues found · 4 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.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
+6 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
247 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-3 overall since Jul 18, 2026
- Overall
- 74
- SEO
- 50
- Security
- 65
- Performance
- 100
- Accessibility
- 90
Meta tags
- Title
- Client Challenge
- Description
- Canonical
- Language
- en
- Charset
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- 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
- GlobalSign nv-sa
- Subject
- *.ar.khanacademy.org
- Valid from
- Apr 26, 2026
- Valid to
- Nov 11, 2026
- Days until expiry
- 105
- SAN domains
- *.ar.khanacademy.org, *.az.khanacademy.org, *.bg.khanacademy.org, *.bn.khanacademy.org, *.cs.khanacademy.org, *.da.khanacademy.org, *.de.khanacademy.org, *.el.khanacademy.org, *.es.khanacademy.org, *.fa-af.khanacademy.org, *.fa.khanacademy.org, *.fr.khanacademy.org, *.gu.khanacademy.org, *.he.khanacademy.org, *.hi.khanacademy.org, *.hu.khanacademy.org, *.hy.khanacademy.org, *.id.khanacademy.org, *.it.khanacademy.org, *.ja.khanacademy.org, *.ka.khanacademy.org, *.kasandbox.org, *.kastatic.org, *.khanacademy.org, *.km.khanacademy.org, *.kn.khanacademy.org, *.ko.khanacademy.org, *.mn.khanacademy.org, *.ms.khanacademy.org, *.my.khanacademy.org, *.nb.khanacademy.org, *.nl.khanacademy.org, *.pa.khanacademy.org, *.pl.khanacademy.org, *.pt-pt.khanacademy.org, *.pt.khanacademy.org, *.ro.khanacademy.org, *.ru.khanacademy.org, *.sr.khanacademy.org, *.sv.khanacademy.org, *.sw.khanacademy.org, *.ta.khanacademy.org, *.te.khanacademy.org, *.th.khanacademy.org, *.tr.khanacademy.org, *.uk.khanacademy.org, *.ur.khanacademy.org, *.uz.khanacademy.org, *.vi.khanacademy.org, *.xh.khanacademy.org, *.zero.khanacademy.org, *.zh.khanacademy.org, *.zu.khanacademy.org, content.khanacademy.org, fastly.kastatic.org, kasandbox.org, zero.khanacademy.org, *.khan.co
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
1.3 KB · 179 B
Page size
3.0 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://khanacademy.org
- Final URL
- https://www.khanacademy.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 247 ms
- HTML size
- 3.0 KB
- Redirect chain
- https://khanacademy.org → https://www.khanacademy.org/
See something wrong on this report? Request a correction
Frequently asked questions
- What technology does khanacademy.org use?
- We did not detect any specific technologies for khanacademy.org in the latest scan.
- Is khanacademy.org secure (HTTPS)?
- Yes. khanacademy.org uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Nov 11, 2026.
- Who hosts khanacademy.org?
- Hosting provider information for khanacademy.org is not available yet.
- What is khanacademy.org's SEO score?
- khanacademy.org scored 50/100 for SEO in the latest analysis (fair).
- What is khanacademy.org's overall website score?
- khanacademy.org has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.
- Has khanacademy.org's score changed over time?
- khanacademy.org's overall score has declined by 3 points (from 77 to 74) since Jul 18, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card