pdflib.com

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pdflib.com is ranked #5,255 in the Tranco list of the world's most popular websites (list of Oct 13, 2026), up 19 places in four weeks. The domain was registered on Aug 21, 1999, 27 years, 1 month ago, through IONOS SE, and is paid up until Aug 21, 2027. It is served by Apache.

Global rank

#5,255

▼ 16 this week

Domain age

27 years

since Aug 21, 1999

Technologies

detected on the homepage

SEO score

74/100

homepage checks

Popularity rank

#5,255 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: #5,181.

Weekly Tranco rank (lower is more popular).

See where pdflib.com sits in the top 10,000

Domain registration

Registered: Aug 21, 1999 (27 years, 1 month ago)
Expires: Aug 21, 2027
Registrar: IONOS SE
Name servers: ns1028.ui-dns.de, ns1042.ui-dns.com, ns1096.ui-dns.org, ns1111.ui-dns.biz
DNSSEC: Not signed

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

Technology stack

Web servers

Apache

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.

74/100

https://www.pdflib.com/

PDFlib: PDFlib GmbH Home

(no meta description)

12 passed · 10 warnings · 1 failed

Content

✓Title24 characters
✕Meta descriptionMissing
✓H1 headingExactly one H1
✓Subheadings6 H2 headings
✓Image alt textAll 7 images have alt text
✓Content lengthAbout 501 words

Indexing

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

Social sharing

!Open Graph1 of 3 key tags set
!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-PolicyNot set

Server response

Final URL: https://www.pdflib.com/
HTTP status: 200
Server: Apache
Response time: 5.92 s (first byte 5.91 s, from our scanner in a US data centre)
HTML size: 76 KB
Compression: gzip

Sites ranked near pdflib.com

Rank	Website	Registered	Built with
#5,250	oclc.org	1989	Cloudflare
#5,251	roche.com	1992	Gatsby, React, Amazon CloudFront
#5,252	comonxp.com	2026	—
#5,253	lekton.io	2022	—
#5,254	gta5-mods.com	2011	Cloudflare, Google Tag Manager
#5,256	dominos.com	1994	Next.js, React
#5,257	skylinewebcams.com	2012	jsDelivr, Nginx, Google AdSense
#5,258	getcomposer.org	2011	Nginx
#5,259	reolink.com	2004	WordPress, Nginx, Google Analytics
#5,260	hindawi.com	1998	Cloudflare

Questions about pdflib.com

How popular is pdflib.com?

pdflib.com is #5,255 worldwide in the Tranco list published Oct 13, 2026.

How old is pdflib.com?

pdflib.com was registered on Aug 21, 1999, which makes the domain 27 years, 1 month old.

What is pdflib.com built with?

We detected Apache on its homepage.

Who is the registrar of pdflib.com?

IONOS SE, according to the registry's RDAP record.