opensource.org

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opensource.org is ranked #2,474 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 125 places in four weeks. The domain was registered on Feb 11, 1998, 28 years, 8 months ago, through Gandi SAS, and is paid up until Feb 10, 2027. Its homepage uses jQuery and WordPress. It is served through Cloudflare and unpkg.

Global rank

#2,474

▼ 6 this week

Domain age

28 years

since Feb 11, 1998

Technologies

detected on the homepage

SEO score

83/100

homepage checks

Popularity rank

#2,474 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: #2,357.

Weekly Tranco rank (lower is more popular).

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

Domain registration

Registered: Feb 11, 1998 (28 years, 8 months ago)
Expires: Feb 10, 2027
Registrar: Gandi SAS
Name servers: alice.ns.cloudflare.com, arturo.ns.cloudflare.com
DNSSEC: Not signed

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

Technology stack

JavaScript libraries

jQuery

CMS & site builders

WordPress

CDN

Cloudflare unpkg

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.

83/100

https://opensource.org/

Open Source Initiative – The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.

(no meta description)

16 passed · 6 warnings · 1 failed

Content

!Title130 characters — aim for 15–65
✕Meta descriptionMissing
✓H1 headingExactly one H1
✓Subheadings9 H2 headings
✓Image alt textAll 40 images have alt text
✓Content lengthAbout 951 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://opensource.org/
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen-US
!Structured dataNo JSON-LD or microdata

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://opensource.org/
HTTP status: 200
Server: cloudflare
Response time: 80 ms (first byte 77 ms, from our scanner in a US data centre)
HTML size: 213 KB
Compression: br

Sites with a similar tech stack

Rank	Website	Built with
#1,058	auvik.com	WordPress, Cloudflare, unpkg
#3,634	loxonecloud.com	WordPress, Cloudflare, unpkg
#3,747	elementor.com	WordPress, Cloudflare, jsDelivr
#9,050	sexbebin.com	WordPress, Cloudflare, unpkg
#331	appsflyer.com	WordPress, Cloudflare, jQuery
#352	onelink.me	WordPress, Cloudflare, jQuery

Sites ranked near opensource.org

Rank	Website	Registered	Built with
#2,469	fanduel.com	2009	Next.js, React, Amazon CloudFront
#2,470	snapcraft.io	2016	Nginx, Google Tag Manager
#2,471	mossturbo.com	2024	—
#2,472	meituan.com	2009	Next.js, React, OpenResty
#2,473	co.com	1997	—
#2,475	iheart.com	1999	Fastly, Express, Amazon Ads
#2,476	nejm.org	1994	Cloudflare
#2,477	dnspod.com	2006	Baidu Tongji, Google Analytics, Google Tag Manager
#2,478	web.de	—	Nginx
#2,479	aws-prd.net	2016	—

Questions about opensource.org

How popular is opensource.org?

opensource.org is #2,474 worldwide in the Tranco list published Oct 13, 2026.

How old is opensource.org?

opensource.org was registered on Feb 11, 1998, which makes the domain 28 years, 8 months old.

What is opensource.org built with?

We detected jQuery, WordPress, Cloudflare and unpkg on its homepage.

Who is the registrar of opensource.org?

Gandi SAS, according to the registry's RDAP record.