libpng.org

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libpng.org is ranked #4,460 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 33 places in four weeks. The domain was registered on Mar 10, 2000, 26 years, 7 months ago, through Tucows Domains Inc., and is paid up until Mar 10, 2027. It is served by Nginx.

Global rank

#4,460

▼ 4 this week

Domain age

26 years

since Mar 10, 2000

Technologies

detected on the homepage

SEO score

57/100

homepage checks

Popularity rank

#4,460 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: #4,378.

Weekly Tranco rank (lower is more popular).

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

Domain registration

Registered: Mar 10, 2000 (26 years, 7 months ago)
Expires: Mar 10, 2027
Registrar: Tucows Domains Inc.
Name servers: ns1.hover.com, ns2.hover.com
DNSSEC: Not signed

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

57/100

https://libpng.org/

libpng.org: top level

(no meta description)

7 passed · 12 warnings · 4 failed

Content

✓Title21 characters
✕Meta descriptionMissing
✓H1 headingExactly one H1
✓Subheadings1 H2 headings
✓Image alt textAll 5 images have alt text
✕Content lengthAbout 85 words in the served HTML

Indexing

✓IndexableNo noindex directive
!Canonical URLMissing
✓robots.txtFound
!XML sitemapNot found
!Language attributeMissing
!Structured dataNo JSON-LD or microdata

Social sharing

✕Open GraphMissing
!Twitter / X cardMissing

Technical

✓HTTPSServed over HTTPS
✕Mobile viewportMissing
!FaviconMissing
!Character encodingiso-8859-1

Security headers

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

Server response

Final URL: https://libpng.org/
HTTP status: 200
Server: nginx
Response time: 3.65 s (first byte 3.65 s, from our scanner in a US data centre)
HTML size: 2.8 KB
Compression: gzip

Sites ranked near libpng.org

Rank	Website	Registered	Built with
#4,455	bmw-motorrad.com.cn	—	Apache
#4,456	nhentai.net	2014	Cloudflare
#4,457	vinted.pl	2013	Next.js, React, Cloudflare
#4,458	edgedns-tm.info	2017	—
#4,459	terabox.com	2008	Nginx, Google Analytics
#4,461	harica.gr	—	WordPress, jQuery, Font Awesome
#4,462	p-cdn.com	2012	—
#4,463	dnsv1.com.cn	—	—
#4,464	principal.com	1995	Drupal, Pantheon, Fastly
#4,465	skimresources.com	2010	—

Questions about libpng.org

How popular is libpng.org?

libpng.org is #4,460 worldwide in the Tranco list published Oct 13, 2026.

How old is libpng.org?

libpng.org was registered on Mar 10, 2000, which makes the domain 26 years, 7 months old.

What is libpng.org built with?

We detected Nginx on its homepage.

Who is the registrar of libpng.org?

Tucows Domains Inc., according to the registry's RDAP record.