osf.io

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osf.io is ranked #5,869 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 79 places in four weeks. The domain was registered on Mar 25, 2013, 13 years, 6 months ago, through NameCheap, Inc., and is paid up until Mar 25, 2027. It is served by Nginx.

Global rank

#5,869

▲ 4 this week

Domain age

13 years

since Mar 25, 2013

Technologies

detected on the homepage

SEO score

68/100

homepage checks

Popularity rank

#5,869 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: #5,869.

Weekly Tranco rank (lower is more popular).

See where osf.io sits in the top 10,000

Domain registration

Registered: Mar 25, 2013 (13 years, 6 months ago)
Expires: Mar 25, 2027
Registrar: NameCheap, Inc.
Name servers: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com
DNSSEC: Not signed

From the registry's public RDAP record, checked Oct 14, 2026.

Technology stack

Web servers

Nginx

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.

68/100

https://osf.io/

OSF

(no meta description)

12 passed · 6 warnings · 4 failed

Content

!Title3 characters — aim for 15–65
✕Meta descriptionMissing
✕H1 headingMissing in the served HTML
!SubheadingsNo H2 headings in the served HTML
iImage alt textNo images in the served HTML
✕Content lengthAbout 0 words in the served HTML

Indexing

✓IndexableNo noindex directive
!Canonical URLMissing
✓robots.txtFound
✓XML sitemapFound
✓Language attributeen
!Structured dataNo JSON-LD or microdata

Social sharing

✕Open GraphMissing
!Twitter / X cardMissing

Technical

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

Security headers

✓Strict-Transport-SecuritySet
!Content-Security-PolicyNot set
✓Clickjacking protectionSet
✓X-Content-Type-OptionsSet
✓Referrer-PolicySet

Server response

Final URL: https://osf.io/
HTTP status: 200
Server: nginx
Response time: 78 ms (first byte 77 ms, from our scanner in a US data centre)
HTML size: 4.1 KB
Compression: br

Sites ranked near osf.io

Rank	Website	Registered	Built with
#5,864	nspk.ru	—	—
#5,865	apachetoday.com	2000	—
#5,866	dianping.com	2005	Next.js, React
#5,867	ohthree.com	2010	—
#5,868	serverbid.com	2005	—
#5,870	telangana.gov.in	2014	WordPress, jQuery, Google Analytics
#5,871	1cfresh.com	2011	Nginx, Yandex Metrica
#5,872	kion.ru	—	Angular, Yandex Metrica, Express
#5,873	haaretz.com	1997	Fastly
#5,874	haberturk.com	2000	Google Tag Manager

Questions about osf.io

How popular is osf.io?

osf.io is #5,869 worldwide in the Tranco list published Oct 13, 2026.

How old is osf.io?

osf.io was registered on Mar 25, 2013, which makes the domain 13 years, 6 months old.

What is osf.io built with?

We detected Nginx on its homepage.

Who is the registrar of osf.io?

NameCheap, Inc., according to the registry's RDAP record.