geogebra.org
GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
Last scanned Aug 1, 2026, 2:00 AM · 16 views
Overall score
Excellent
Summary
Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more. This website uses Next.js behind CloudFront CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
Top issues to fix
5 issues found
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
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.
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
45 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 25, 2026
- Overall
- 93
- SEO
- 85
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
Meta tags
- Title
- GeoGebra - the world’s favorite, free math tools used by over 100 million students and teachers
- Description
- Free digital tools for class activities, graphing, geometry, collaborative whiteboard and more
- Canonical
- https://www.geogebra.org
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- all
- Manifest
- https://www.geogebra.org/sp-assets/assets/manifest.f32664c7.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- CloudFront
- 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
- geogebra.org
- Valid from
- Sep 23, 2025
- Valid to
- Oct 21, 2026
- Days until expiry
- 81
- SAN domains
- geogebra.org, *.geogebra.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 0
Links
23 internal · 11 external · 20 broken
Images
23 total · 0 missing alt
Scripts / Styles
37 scripts · 2 stylesheets
JS / CSS size
49.2 KB · 0 B
Page size
191 KB
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
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://geogebra.org
- Final URL
- https://www.geogebra.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 42 ms
- HTML size
- 191 KB
- Redirect chain
- https://geogebra.org → https://www.geogebra.org/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does geogebra.org use?
- geogebra.org is built with Next.js.
- Is geogebra.org secure (HTTPS)?
- Yes. geogebra.org uses TLS 1.3 with a certificate issued by Amazon, valid until Oct 21, 2026.
- Who hosts geogebra.org?
- Hosting provider information for geogebra.org is not available yet.
- What is geogebra.org's SEO score?
- geogebra.org scored 85/100 for SEO in the latest analysis (great).
- What is geogebra.org's overall website score?
- geogebra.org has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.
- Has geogebra.org's score changed over time?
- geogebra.org's overall score has declined by 3 points (from 96 to 93) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card