openlibrary.org

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openlibrary.org is ranked #5,102 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 329 places in four weeks. The domain was registered on Jun 25, 2001, 25 years, 3 months ago, through easyDNS Technologies Inc., and is paid up until Jun 25, 2027. Its homepage uses Matomo. It is served by Nginx.

Global rank

#5,102

▼ 10 this week

Domain age

25 years

since Jun 25, 2001

Technologies

detected on the homepage

SEO score

78/100

homepage checks

Popularity rank

#5,102 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: #4,834.

Weekly Tranco rank (lower is more popular).

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

Domain registration

Registered: Jun 25, 2001 (25 years, 3 months ago)
Expires: Jun 25, 2027
Registrar: easyDNS Technologies Inc.
Name servers: ns3.archive.org, ns1.archive.org, ns2.archive.org
DNSSEC: Not signed

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

Technology stack

Analytics

Matomo

Web servers

Nginx 1.30.5

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.

78/100

https://openlibrary.org/

Welcome to Open Library | Open Library

Open Library is an open, editable library catalog, building towards a web page for every book ever published. Read, borrow, and discover more than 3M books for free.

15 passed · 6 warnings · 2 failed

Content

✓Title38 characters
✓Meta description165 characters
✕H1 headingMissing in the served HTML
✓Subheadings11 H2 headings
✓Image alt textAll 63 images have alt text
✓Content lengthAbout 648 words

Indexing

✓IndexableNo noindex directive
✓Canonical URLhttps://openlibrary.org/
✓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-SecurityNot set
!Content-Security-PolicyNot set
!Clickjacking protectionNot set
!X-Content-Type-OptionsNot set
✓Referrer-PolicySet

Server response

Final URL: https://openlibrary.org/
HTTP status: 200
Server: nginx/1.30.5
Response time: 123 ms (first byte 122 ms, from our scanner in a US data centre)
HTML size: 107 KB
Compression: gzip

Sites ranked near openlibrary.org

Rank	Website	Registered	Built with
#5,097	pornhat.com	2012	cdnjs, Cloudflare, Cloudflare Web Analytics
#5,098	google.bg	—	—
#5,099	juntadeandalucia.es	—	Drupal, Nginx, jQuery
#5,100	softpedia.com	2003	Cloudflare
#5,101	zstaticcdn.com	2024	Next.js, React, Alibaba Cloud CDN
#5,103	mediaset.it	—	—
#5,104	janusaent.com	2026	Cloudflare
#5,105	dutils.com	2021	—
#5,106	superbet.ro	—	Amazon CloudFront
#5,107	emirates.com	1996	—

Questions about openlibrary.org

How popular is openlibrary.org?

openlibrary.org is #5,102 worldwide in the Tranco list published Oct 13, 2026.

How old is openlibrary.org?

openlibrary.org was registered on Jun 25, 2001, which makes the domain 25 years, 3 months old.

What is openlibrary.org built with?

We detected Matomo and Nginx on its homepage.

Who is the registrar of openlibrary.org?

easyDNS Technologies Inc., according to the registry's RDAP record.