code.org

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code.org is ranked #3,467 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 704 places in four weeks. The domain was registered on Sep 28, 1999, 27 years ago, through Amazon Registrar, Inc., and is paid up until Sep 28, 2027. Its homepage uses Next.js, React, Font Awesome and Material UI. It is served through Amazon CloudFront.

Global rank

#3,467

▲ 28 this week

Domain age

27 years

since Sep 28, 1999

Technologies

detected on the homepage

SEO score

89/100

homepage checks

Popularity rank

#3,467 of the top 1 million sites in the Tranco research ranking, which averages several traffic and DNS sources over 30 days. Best rank in the period shown: #3,467.

Weekly Tranco rank (lower is more popular).

See where code.org sits in the top 10,000

Domain registration

Registered: Sep 28, 1999 (27 years ago)
Expires: Sep 28, 2027
Registrar: Amazon Registrar, Inc.
Name servers: ns-1497.awsdns-59.org, ns-1652.awsdns-14.co.uk, ns-269.awsdns-33.com, ns-678.awsdns-20.net
DNSSEC: Not signed

From the registry's public RDAP record, checked Oct 1, 2026.

Technology stack

JavaScript frameworks

Next.js React

UI frameworks & fonts

Font Awesome Material UI

CDN

Amazon CloudFront

Detected from the homepage HTML and response headers on Oct 14, 2026. Tools loaded only after scripts run (or after consent banners) may be missing.

Homepage SEO check

Checked from the HTML our scanner received on Oct 14, 2026. Content added later by JavaScript isn't counted.

89/100

https://code.org/en-US

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18 passed · 5 warnings · 0 failed

Content

✓Title49 characters
!Meta description177 characters — aim for 50–170
✓H1 headingExactly one H1
✓Subheadings10 H2 headings
✓Image alt textAll 42 images have alt text
✓Content lengthAbout 1,119 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://code.org/en-US
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen-US
✓Structured dataEducationalOrganization

Social sharing

✓Open GraphTitle, description and image set
✓Twitter / X cardsummary_large_image

Technical

✓HTTPSServed over HTTPS
✓Mobile viewportFound
✓FaviconFound
✓Character encodingutf-8

Security headers

✓Strict-Transport-SecuritySet
!Content-Security-PolicyNot set
!Clickjacking protectionNot set
!X-Content-Type-OptionsNot set
!Referrer-PolicyNot set

Server response

Final URL: https://code.org/en-US
HTTP status: 200
Server: CloudFront
Response time: 3.06 s (first byte 3.04 s, from our scanner in a US data centre)
HTML size: 1.2 MB
Compression: gzip

Sites with a similar tech stack

Rank	Website	Built with
#4,214	bitdrift.io	Next.js, React, Amazon CloudFront
#2,938	freshdesk.com	Next.js, React, Amazon CloudFront
#6,712	freshservice.com	Next.js, React, Amazon CloudFront
#6,848	gravitational.io	Next.js, React, Amazon CloudFront
#3,428	mobilefuse.com	Next.js, React, Amazon CloudFront
#7,741	pixieset.com	Next.js, React, Amazon CloudFront

Sites ranked near code.org

Rank	Website	Registered	Built with
#3,462	wsdvs.info	2016	—
#3,463	ansa.it	—	Nginx, Google Tag Manager, Google Ad Manager
#3,464	amazon.nl	1998	Akamai
#3,465	stspg-customer.com	2015	—
#3,466	hpeprint.com	2007	—
#3,468	brightcloud.com	1999	—
#3,469	pure.cloud	2016	—
#3,470	serverdata.net	2002	Microsoft IIS, Google Analytics, ASP.NET
#3,471	rostelecom.ru	—	—
#3,472	awsdns-07.com	2010	—

Questions about code.org

How popular is code.org?

code.org is #3,467 worldwide in the Tranco list published Oct 13, 2026.

How old is code.org?

code.org was registered on Sep 28, 1999, which makes the domain 27 years old.

What is code.org built with?

We detected Next.js, React, Font Awesome, Material UI and Amazon CloudFront on its homepage.

Who is the registrar of code.org?

Amazon Registrar, Inc., according to the registry's RDAP record.