Pdflib.com - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
76% 
Page structure
94% 
Link structure
25% 
Server
100% 
External factors
100% 
SEO Score
Response time
0.31 s
File size
80.10 kB
Words
787
Media files
10
Number of links
254 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
PDFlib: PDFlib GmbH Home
There are word repetitions in the page title.
The length of the page title is perfect. (257 pixels out of 580 max pixel length)
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Language defined in HTTP-Equiv meta tag: en
Server location: United States of America
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
generatorTYPO3 CMS
viewportwidth=device-width, initial-scale=1.0
langen
og:imagehttps://www.pdflib.com/fileadmin/images/NewHeaders/027-0_Mongolfiera_18-03.svg
x-ua-compatibleIE=edge,chrome=1
content-languageen
charsetutf-8

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Page quality

Content
(Critically important)
This page contains 787 words. That's ok.
15.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
6 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 14.17 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1.0" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 16 tags for this page.
Image SEO
(Somewhat important)
10 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

URLAlt attributeTitle
/fileadmin/images/NewHeaders/041-2_Berg.svgNo alt attribute provided
/fileadmin/images/pdftron/PDFlib-Apryse.svgNo alt attribute provided
...admin/images/NewHeaders/053_PDFWorld.svgNo alt attribute provided
/fileadmin/images/test-svg/engel.svgNo alt attribute provided
...min/images/NewHeaders/033-1_CookBook.svgNo alt attribute provided
/fileadmin/images/NewHeaders/019-1_TET.svgNo alt attribute provided
/fileadmin/images/NewHeaders/050_Plop_c.svgNo alt attribute provided
...in/images/NewHeaders/055-2_Knowledge.svgNo alt attribute provided
/fileadmin/images/NewHeaders/050_Plop_b.svgNo alt attribute provided
/fileadmin/images/NewHeaders/047-1_pCOS.svgNo alt attribute provided

Page structure

H1 heading
(Critically important)
PDFlib GmbH
The H1 heading is too short (11 characters). It should be at least 20 Characters long.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 PDFlib GmbH
H2 Apryse acquires PDFlib
H2 What is PDFlib?
H2 PDFlib 10
H2 Cookbooks
H2 TET product family
H2 PDFlib PLOP
H2 PDF Knowledge Base
H2 PDFlib PLOP DS
H2 pCOS Interface
Baselink: https://www.pdflib.com/
Some internal link anchor texts are too long.
Some anchor texts are used more than once.
The number of internal links is ok.
All internal links are not using dynamic parameters.
There are 4 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.pdflib.com/Anchor skip navigation
https://www.pdflib.com/A-TITLE PDFlib Homepage
https://www.pdflib.com/de/DE
A-TITLE zur deutschen Version wechseln
https://www.pdflib.com/products/Products
/products/product-overview/Product Overview
/products/pdflib-family/PDFlib Product Family
/products/pdflib-family/overview/What is PDFlib?
/products/pdflib-family/pdflib/PDFlib
/products/pdflib-family/pdflib...PDFlib+PDI
/products/pdflib-family/pdflib...PDFlib Personalization Server (PPS)
/products/pdflib-family/featur...Comparison PDFlib/PDFlib+PDI/PPS
/products/pdflib-family/whats-...What's new in PDFlib 10?
/products/pdflib-family/pdflib...PDFlib 10 Features
/products/pdflib-family/deprec...Deprecated API Methods and Options
/products/pdflib-family/prices/Prices
/products/tet/TET
/products/tet/overview/Overview
/products/tet/new-features/New Features
/products/tet/features/Features
/products/tet/advantages-for-t...Advantages for Text Extraction
/products/tet/advantages-for-i...Advantages for Image Extraction
/products/tet/how-to-use-tet/How to use TET
/products/tet/prices/Text duplicate Prices
/products/tet-pdf-ifilter/TET PDF IFilter
/products/tet-pdf-ifilter/over...Text duplicate Overview
/products/tet-pdf-ifilter/feat...Text duplicate Features
/products/tet-pdf-ifilter/prices/Text duplicate Prices
/products/tet-plugin/TET Plugin
/products/plop/PLOP
/products/plop/plop-features/Text duplicate Features
/products/plop/plop-prices/Text duplicate Prices
/products/plop-ds/PLOP DS
/products/plop-ds/features/Text duplicate Features
/products/plop-ds/prices/Text duplicate Prices
/products/pcos/pCOS Interface
/products/fontreporter/FontReporter
https://www.pdflib.com/download/Download
/download/pdflib-product-family/Text duplicate PDFlib Product Family
/download/block-plugin/Block Plugin
/download/tet/Text duplicate TET
/download/tet-pdf-ifilter/Text duplicate TET PDF IFilter
/download/free-software/tet-pl...Text duplicate TET Plugin
/download/plop-and-plop-ds/PLOP and PLOP DS
/download/free-software/Free Software
/download/free-software/tet-pl...Text duplicate TET Plugin
/download/free-software/fontre...Text duplicate FontReporter
/download/cmaps/CMaps
/download/pdflib-pdflib-pdi-pp...Block Plugin 5
/licensing-support/Licensing & Support
/licensing-support/licensing/Licensing
/licensing-support/support/Support
/licensing-support/support-det...Support Details
/licensing-support/license-key...License Keys and Minor Releases
/licensing-support/major-updates/Major Updates
/licensing-support/minor-updates/Minor Updates
/licensing-support/updating-to...Updating to PDFlib 10
/licensing-support/product-lif...Product Lifetime
/licensing-support/premium-lic...Premium Licenses
/licensing-support/opening-a-s...Opening a Support Case
https://www.pdflib.com/cookbook/Cookbooks
/pdflib-cookbook/PDFlib Cookbook
/tet-cookbook/TET Cookbook
/pcos-cookbook/pCOS Cookbook
/documentation/Documentation
/documentation/manuals/Manuals
/documentation/howtos/HowTos
/documentation/aix-binaries-on...AIX Binaries on System i
/pdf-knowledge-base/PDF Knowledge Base
/pdf-knowledge-base/pdf-20/PDF 2.0
/pdf-knowledge-base/pdf-20/wha...What to expect from PDF 2.0?
/pdf-knowledge-base/pdf-20/exi...Existing Acrobat Features
/pdf-knowledge-base/pdf-20/exi...Existing Features from PDF Standards
/pdf-knowledge-base/pdf-20/new...New Capabilities
/pdf-knowledge-base/pdf-20/dep...Deprecated Features
/pdf-knowledge-base/pdf-20/wha...What's missing in PDF 2.0?
/pdf-knowledge-base/pdf-passwo...PDF Password Security
/pdf-knowledge-base/pdf-passwo...Text duplicate PDF Password Security
/pdf-knowledge-base/pdf-passwo...Encryption
/pdf-knowledge-base/pdf-passwo...Permissions
/pdf-knowledge-base/pdf-passwo...Recommendations
/pdf-knowledge-base/pdf-certif...PDF Certificate Security
/pdf-knowledge-base/pdf-certif...Text duplicate PDF Certificate Security
/pdf-knowledge-base/pdf-certif...CMS Enveloped Data
/pdf-knowledge-base/pdf-certif...Cryptographic Details
/pdf-knowledge-base/pdf-certif...Use Cases
/pdf-knowledge-base/pdfa/PDF/A
/pdf-knowledge-base/pdfa/the-p...The PDF/A Standards
/pdf-knowledge-base/pdfa/techn...Technical Concepts
/pdf-knowledge-base/pdfa/pdfa-...PDF/A Viewers
/pdf-knowledge-base/pdfa/proce...Processing PDF/A
/pdf-knowledge-base/pdfa/pdfa-...PDF/A in PDFlib products
/pdf-knowledge-base/pdfua/PDF/UA
/pdf-knowledge-base/pdfua/the-...The PDF/UA Standard
/pdf-knowledge-base/pdfua/wcag...WCAG 2.0
/pdf-knowledge-base/pdfua/tagg...Tagged PDF Basics
/pdf-knowledge-base/pdfua/requ...Requirements
/pdf-knowledge-base/pdfua/matt...Matterhorn Protocol
/pdf-knowledge-base/pdfua/pdfu...PDF/UA Readers
/pdf-knowledge-base/pdfua/pdfu...PDF/UA in PDFlib
/pdf-knowledge-base/pdfvt/PDF/VT
/pdf-knowledge-base/pdfx-6/PDF/X-6
/pdf-knowledge-base/pdfx-outpu...PDF/X Output Intents
/pdf-knowledge-base/zugferd-an...ZUGFeRD and Factur-X
/pdf-knowledge-base/xmp/XMP
/pdf-knowledge-base/xmp/xmp-ov...XMP Overview
/pdf-knowledge-base/xmp/xmp-in...XMP in PDF/A
/pdf-knowledge-base/xmp/free-x...Free XMP Validator
https://www.pdflib.com/about-us/About Us
/about-us/pdftron-acquires-pdf...PDFTron acquires PDFlib
https://www.pdflib.com/contact/Contact
/site-notice/Site Notice
https://www.pdflib.com/privacy/Privacy Policy
https://www.pdflib.com/buy/Buy
https://apryse.com/form/contac...New window External Direct Sales
/buy/direct-sales/order-process/Order Process
/buy/direct-sales/purchase-ord...Purchase order forms
/buy/direct-sales/volume-disco...Volume discounts
/buy/direct-sales/vat/VAT
/buy/online-shop/Online Shop
/buy/online-shop/pdflib-pdflib...PDFlib, PDFlib+PDI, PPS
/buy/online-shop/pdflib-tet/PDFlib TET
/buy/resellers/Resellers
https://www.pdflib.com/No Text
https://www.pdflib.com/products/Text duplicate Products
/products/product-overview/Text duplicate Product Overview
/products/pdflib-family/Text duplicate PDFlib Product Family
/products/pdflib-family/overview/Text duplicate What is PDFlib?
/products/pdflib-family/pdflib/Text duplicate PDFlib
/products/pdflib-family/pdflib...Text duplicate PDFlib+PDI
/products/pdflib-family/pdflib...Text duplicate PDFlib Personalization Server (PPS)
/products/pdflib-family/featur...Text duplicate Comparison PDFlib/PDFlib+PDI/PPS
/products/pdflib-family/whats-...Text duplicate What's new in PDFlib 10?
/products/pdflib-family/pdflib...Text duplicate PDFlib 10 Features
/products/pdflib-family/deprec...Text duplicate Deprecated API Methods and Options
/products/pdflib-family/prices/Text duplicate Prices
/products/tet/Text duplicate TET
/products/tet/overview/Text duplicate Overview
/products/tet/new-features/Text duplicate New Features
/products/tet/features/Text duplicate Features
/products/tet/advantages-for-t...Text duplicate Advantages for Text Extraction
/products/tet/advantages-for-i...Text duplicate Advantages for Image Extraction
/products/tet/how-to-use-tet/Text duplicate How to use TET
/products/tet/prices/Text duplicate Prices
/products/tet-pdf-ifilter/Text duplicate TET PDF IFilter
/products/tet-pdf-ifilter/over...Text duplicate Overview
/products/tet-pdf-ifilter/feat...Text duplicate Features
/products/tet-pdf-ifilter/prices/Text duplicate Prices
/products/tet-plugin/Text duplicate TET Plugin
/products/plop/Text duplicate PLOP
/products/plop/plop-features/Text duplicate Features
/products/plop/plop-prices/Text duplicate Prices
/products/plop-ds/Text duplicate PLOP DS
/products/plop-ds/features/Text duplicate Features
/products/plop-ds/prices/Text duplicate Prices
/products/pcos/Text duplicate pCOS Interface
/products/fontreporter/Text duplicate FontReporter
https://www.pdflib.com/download/Text duplicate Download
/download/pdflib-product-family/Text duplicate PDFlib Product Family
/download/block-plugin/Text duplicate Block Plugin
/download/tet/Text duplicate TET
/download/tet-pdf-ifilter/Text duplicate TET PDF IFilter
/download/free-software/tet-pl...Text duplicate TET Plugin
/download/plop-and-plop-ds/Text duplicate PLOP and PLOP DS
/download/free-software/Text duplicate Free Software
/download/free-software/tet-pl...Text duplicate TET Plugin
/download/free-software/fontre...Text duplicate FontReporter
/download/cmaps/Text duplicate CMaps
/download/pdflib-pdflib-pdi-pp...Text duplicate Block Plugin 5
/licensing-support/Text duplicate Licensing & Support
/licensing-support/licensing/Text duplicate Licensing
/licensing-support/support/Text duplicate Support
/licensing-support/support-det...Text duplicate Support Details
/licensing-support/license-key...Text duplicate License Keys and Minor Releases
/licensing-support/major-updates/Text duplicate Major Updates
/licensing-support/minor-updates/Text duplicate Minor Updates
/licensing-support/updating-to...Text duplicate Updating to PDFlib 10
/licensing-support/product-lif...Text duplicate Product Lifetime
/licensing-support/premium-lic...Text duplicate Premium Licenses
/licensing-support/opening-a-s...Text duplicate Opening a Support Case
https://www.pdflib.com/cookbook/Text duplicate Cookbooks
/pdflib-cookbook/Text duplicate PDFlib Cookbook
/tet-cookbook/Text duplicate TET Cookbook
/pcos-cookbook/Text duplicate pCOS Cookbook
/documentation/Text duplicate Documentation
/documentation/manuals/Text duplicate Manuals
/documentation/howtos/Text duplicate HowTos
/documentation/aix-binaries-on...Text duplicate AIX Binaries on System i
/pdf-knowledge-base/Text duplicate PDF Knowledge Base
/pdf-knowledge-base/pdf-20/Text duplicate PDF 2.0
/pdf-knowledge-base/pdf-20/wha...Text duplicate What to expect from PDF 2.0?
/pdf-knowledge-base/pdf-20/exi...Text duplicate Existing Acrobat Features
/pdf-knowledge-base/pdf-20/exi...Text duplicate Existing Features from PDF Standards
/pdf-knowledge-base/pdf-20/new...Text duplicate New Capabilities
/pdf-knowledge-base/pdf-20/dep...Text duplicate Deprecated Features
/pdf-knowledge-base/pdf-20/wha...Text duplicate What's missing in PDF 2.0?
/pdf-knowledge-base/pdf-passwo...Text duplicate PDF Password Security
/pdf-knowledge-base/pdf-passwo...Text duplicate PDF Password Security
/pdf-knowledge-base/pdf-passwo...Text duplicate Encryption
/pdf-knowledge-base/pdf-passwo...Text duplicate Permissions
/pdf-knowledge-base/pdf-passwo...Text duplicate Recommendations
/pdf-knowledge-base/pdf-certif...Text duplicate PDF Certificate Security
/pdf-knowledge-base/pdf-certif...Text duplicate PDF Certificate Security
/pdf-knowledge-base/pdf-certif...Text duplicate CMS Enveloped Data
/pdf-knowledge-base/pdf-certif...Text duplicate Cryptographic Details
/pdf-knowledge-base/pdf-certif...Text duplicate Use Cases
/pdf-knowledge-base/pdfa/Text duplicate PDF/A
/pdf-knowledge-base/pdfa/the-p...Text duplicate The PDF/A Standards
/pdf-knowledge-base/pdfa/techn...Text duplicate Technical Concepts
/pdf-knowledge-base/pdfa/pdfa-...Text duplicate PDF/A Viewers
/pdf-knowledge-base/pdfa/proce...Text duplicate Processing PDF/A
/pdf-knowledge-base/pdfa/pdfa-...Text duplicate PDF/A in PDFlib products
/pdf-knowledge-base/pdfua/Text duplicate PDF/UA
/pdf-knowledge-base/pdfua/the-...Text duplicate The PDF/UA Standard
/pdf-knowledge-base/pdfua/wcag...Text duplicate WCAG 2.0
/pdf-knowledge-base/pdfua/tagg...Text duplicate Tagged PDF Basics
/pdf-knowledge-base/pdfua/requ...Text duplicate Requirements
/pdf-knowledge-base/pdfua/matt...Text duplicate Matterhorn Protocol
/pdf-knowledge-base/pdfua/pdfu...Text duplicate PDF/UA Readers
/pdf-knowledge-base/pdfua/pdfu...Text duplicate PDF/UA in PDFlib
/pdf-knowledge-base/pdfvt/Text duplicate PDF/VT
/pdf-knowledge-base/pdfx-6/Text duplicate PDF/X-6
/pdf-knowledge-base/pdfx-outpu...Text duplicate PDF/X Output Intents
/pdf-knowledge-base/zugferd-an...Text duplicate ZUGFeRD and Factur-X
/pdf-knowledge-base/xmp/Text duplicate XMP
/pdf-knowledge-base/xmp/xmp-ov...Text duplicate XMP Overview
/pdf-knowledge-base/xmp/xmp-in...Text duplicate XMP in PDF/A
/pdf-knowledge-base/xmp/free-x...Text duplicate Free XMP Validator
https://www.pdflib.com/about-us/Text duplicate About Us
/about-us/pdftron-acquires-pdf...Text duplicate PDFTron acquires PDFlib
https://www.pdflib.com/contact/Text duplicate Contact
/site-notice/Text duplicate Site Notice
https://www.pdflib.com/privacy/Text duplicate Privacy Policy
https://www.pdflib.com/buy/Text duplicate Buy
https://apryse.com/form/contac...New window External Text duplicate Direct Sales
/buy/direct-sales/order-process/Text duplicate Order Process
/buy/direct-sales/purchase-ord...Text duplicate Purchase order forms
/buy/direct-sales/volume-disco...Text duplicate Volume discounts
/buy/direct-sales/vat/Text duplicate VAT
/buy/online-shop/Text duplicate Online Shop
/buy/online-shop/pdflib-pdflib...Text duplicate PDFlib, PDFlib+PDI, PPS
/buy/online-shop/pdflib-tet/Text duplicate PDFlib TET
/buy/resellers/Text duplicate Resellers
https://www.pdflib.com/de/Deutsch
/products/pdflib-family/overview/What is PDFlib? PDFlib is a development library for creating PDF. The product family comprises multiple levels for creating, importing and personalizing PDF.
/products/pdflib-family/whats-...PDFlib 10 PDFlib 10 product family with a variety of new features available
/pdflib-cookbook/Cookbooks The PDFlib Cookbook now includes new PDFlib 10 examples
/products/tet/overview/TET product family PDFlib TET (Text and Image Extraction Toolkit) reliably extracts text, images and metadata from PDF documents. It is available in multiple...
/products/plop/plop-features/PDFlib PLOP PDFlib PLOP (PDF Linearization, Optimization, Protection) is a versatile tool for linearizing, optimizing, repairing, analyzing, encrypting and d...
/pdf-knowledge-base/PDF Knowledge Base Articles on PDF topics including PDF standards, encryption and more
/products/plop-ds/features/PDFlib PLOP DS PDFlib PLOP DS applies digital signatures to PDF documents. It supports the latest signature technology including PDF 2.0 and PAdES.
/products/pcos/pCOS Interface pCOS: PDF Information Retrieval Interface
https://www.pdflib.com/about-us/PDFlib GmbH
https://apryse.com/New window External Apryse,
https://apryse.com/products/co...New window External PDF SDK
https://www.pdflib.com/contact/Text duplicate Contact
/site-notice/Text duplicate Site Notice
https://www.pdflib.com/privacy/Text duplicate Privacy Policy
/fileadmin/pdflib/pdf/license/...New window Subdomain Terms and Conditions

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.pdflib.com/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
Performance
(Somewhat important)
The page response time is excellent with 0.31 seconds.
The file size of the HTML document is fine (80 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=utf-8
dateFri, 27 Sep 2024 11:55:23 GMT
serverApache
content-languageen
cache-controlprivate, no-store
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

Blacklists
(Nice to have)
This website is not classified "for adult only".
This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 44,960 referring domains.
This page has 908,820 backlinks.
This page has backlinks from 20,777 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *

Similar sites

Search preview

www.pdflib.com
PDFlib: PDFlib GmbH Home

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
PDFlib76%Check
PDF75%Check
PDFlib GmbH67%Check
GmbH62%Check
PDFlib PLOP60%Check
PDFlib Cookbook56%Check
PDFlib 1055%Check
acquires PDFlib55%Check
PDF UA53%Check
PDF Standards53%Check
Show more keywords and terms

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