brilliant.org
Brilliant | Learn by doing
Last scanned Aug 2, 2026, 1:00 PM · 5 views
Overall score
Excellent
Summary
Guided interactive problem solving that’s effective and fun. This website uses Next.js behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Guided interactive problem solving that’s effective and fun. Try thousands of interactive lessons in math, programming, data analysis, AI, science, and more.
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
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.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
779 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+5 overall since Jul 26, 2026
- Overall
- 90
- SEO
- 80
- Security
- 85
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Guided interactive problem solving that’s effective and fun. Try thousands of interactive lessons in math, programming, data analysis, AI, science, and more.
Meta tags
- Title
- Brilliant | Learn by doing
- Description
- Guided interactive problem solving that’s effective and fun. Try thousands of interactive lessons in math, programming, data analysis, AI, science, and more.
- Canonical
- https://brilliant.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1.0,viewport-fit=cover,interactive-widget=resizes-content
- 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
- Let's Encrypt
- Subject
- brilliant.org
- Valid from
- Jul 18, 2026
- Valid to
- Oct 16, 2026
- Days until expiry
- 74
- SAN domains
- *.brilliant.org, *.endor.brilliant.org, *.preview.brilliant.org, brilliant.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 13
Links
12 internal · 11 external · 20 broken
Images
22 total · 0 missing alt
Scripts / Styles
66 scripts · 4 stylesheets
JS / CSS size
25.3 KB · 0 B
Page size
209 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://brilliant.org
- Final URL
- https://brilliant.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 775 ms
- HTML size
- 209 KB
- Redirect chain
- https://brilliant.org
See something wrong on this report? Request a correction
Related websites
Same technology stack
discord.dev
Discord Developer Platform - Documentation - Discord
emplifyhealth.org
Emplify Health | A Little Empathy Changes Everything
cutshort.io
Cutshort: Making Top Professionals More Successful.
cyware.com
Cyware - AI-Powered Threat Intelligence Platform | Home
ashbyprd.com
All-in-one Recruiting Software for Ambitious Teams | Ashby
fhinck.com
Fhinck — Task Mining + Agentes de IA | AI First
Frequently asked questions
- What technology does brilliant.org use?
- brilliant.org is built with Next.js, Google Analytics.
- Is brilliant.org secure (HTTPS)?
- Yes. brilliant.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 16, 2026.
- Who hosts brilliant.org?
- Hosting provider information for brilliant.org is not available yet.
- What is brilliant.org's SEO score?
- brilliant.org scored 80/100 for SEO in the latest analysis (great).
- What is brilliant.org's overall website score?
- brilliant.org has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- Has brilliant.org's score changed over time?
- brilliant.org's overall score has improved by 5 points (from 85 to 90) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card