code.org
Free K–12 Curriculum for Digital Fluency | CodeAI
Last scanned Jul 21, 2026, 11:40 AM · 1 view
Overall score
Great
Top issues to fix
8 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.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
Summary
Code.org® is an education innovation nonprofit dedicated to the vision that every student in every school has the opportunity to learn computer science and artificial intelligence as part of their core K-12 education. This website uses Next.js hosted on AWS behind CloudFront CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance fair (65/100). Top issue: Meta description longer than 160 characters.
SEO
3 issue(s) found
Performance
467 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Code.org
Code.org® is an education innovation nonprofit dedicated to the vision that every student in every school has the opportunity to learn computer science and artificial intelligence as part of their core K-12 education. We expand access to and participation in computer science in schools, with a focus on increasing participation by young women and students from other underrepresented groups. The leading provider of K-12 computer science curriculum in the largest school districts in the United States, Code.org also organizes the annual Hour of Code campaign, which has engaged more than 15% of all students in the world. Code.org is supported by generous donors including Microsoft, Amazon, Google and many others.
- Founded
- Jan 1, 2013
Contact
Email, phone, and address published on this site's own pages.
- Address
- Seattle, WA, US
Meta tags
- Title
- Free K–12 Curriculum for Digital Fluency | CodeAI
- Description
- Bring computer science and AI education to your classroom with CodeAI’s free K–12 curriculum, hands-on projects, and teacher professional development—no prior experience needed.
- Canonical
- https://code.org/en-US/
- Language
- en-US
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- CloudFront
- IP address
- 18.239.153.45
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- code.marketing-sites.code.org
- Valid from
- Apr 22, 2026
- Valid to
- Nov 5, 2026
- Days until expiry
- 107
- SAN domains
- code.marketing-sites.code.org, code.org, preview-code.marketing-sites.code.org, www.code.marketing-sites.code.org, www.code.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 6
Links
18 internal · 7 external · 2 broken
Images
18 total · 0 missing alt
Scripts / Styles
48 scripts · 28 stylesheets
JS / CSS size
1.2 MB · 801 KB
Page size
603 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
| Role | Location | Posted |
|---|---|---|
| Accountant | Remote or Seattle, WA | Jul 14, 2026 |
| Curriculum Content Developer | Remote or Seattle, WA | Jul 1, 2026 |
| Curriculum Growth Manager | Remote or Seattle, WA | May 18, 2026 |
| Manager, CS & AI Curriculum | Remote or Seattle, WA | Jul 1, 2026 |
| Senior Product Manager | Remote or Seattle, WA | Jun 10, 2026 |
Scan details
- Requested URL
- https://code.org
- Final URL
- https://code.org/en-US?utm=instagram%2F%2F%2F&utm=instagram%2F%2F%2F&utm=instagram%2F%2F
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 455 ms
- HTML size
- 603 KB
- Redirect chain
- https://code.org → https://code.org/en-US?utm=instagram%2F%2F%2F&utm=instagram%2F%2F%2F&utm=instagram%2F%2F
Related websites
Same technology stack
intuit.com
Intuit®: Outdo your financial goals—all in one place
giantpanda.com
GiANT PANDA | Domain Traffic Monetization for Domainers
walmart.ca
Online Shopping Canada: Everyday Low Prices at Walmart.ca!
onrender.com
Render | The cloud for builders
auth0.com
Secure AI Agent & User Authentication | Auth0
crazygames.com
Free Online Games on CrazyGames | Play Now!
Same hosting provider
flippingbook.com
FlippingBook | Flipbook Maker for Digital Publishing
giantpanda.com
GiANT PANDA | Domain Traffic Monetization for Domainers
datadoghq.com
Cloud Monitoring as a Service | Datadog
opera.com
Opera Web Browser | Faster, Safer, Smarter | Opera
formstack.com
Secure and Easy-to-use Forms, Docs & eSignatures | Formstack
flipsnack.com
Online Flipbook Maker - Create Interactive Flipbooks | Flipsnack
Frequently asked questions
- What technology does code.org use?
- code.org is built with Next.js, Google Analytics.
- Is code.org secure (HTTPS)?
- Yes. code.org uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 5, 2026.
- Who hosts code.org?
- code.org is hosted on AWS, behind CloudFront CDN.
- What is code.org's SEO score?
- code.org scored 85/100 for SEO in the latest analysis (great).
- What is code.org's overall website score?
- code.org has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
- What company operates code.org?
- code.org is operated by Code.org. Code.org® is an education innovation nonprofit dedicated to the vision that every student in every school has the opportunity to learn computer science and artificial intelligence as part of their core K-12 education. We expand access to and participation in computer science in schools, with a focus on increasing participation by young women and students from other underrepresented groups. The leading provider of K-12 computer science curriculum in the largest school districts in the United States, Code.org also organizes the annual Hour of Code campaign, which has engaged more than 15% of all students in the world. Code.org is supported by generous donors including Microsoft, Amazon, Google and many others.
- Is code.org hiring?
- Yes. code.org has 5 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card