learnlib.de

Tasks

Avoid using deprecated HTML tags.

SEO

URL

Domain : learnlib.de/

Character length : 12

Title

LearnLib | a framework for automata learning

Keywords (meta keywords)

Good! The website does not use “meta keywords”.

Open Graph Protocol

Error! The website does not use the OG (Open Graph) protocol.

Dublin Core

Dublin Core is not used

Underscores in the URLs

Good! No underscore (_) found in the URLs.

Search engine friendly URLs

Good! The website uses SEO friendly URLs.

Checking the robots.txt file

There is robots.txt file.
https://learnlib.de/robots.txt

User-agent	Disallowed for the search engines
*	/wp-admin/

Social

Social Engagement

No info found.

Content

Doctype

HTML 5

Encoding

Perfect! The character encoding is set: UTF-8.

Language

We have found the language localisation: ”en”.

Title

LearnLib | a framework for automata learning

Character length : 44

Good! The title’s length is between 10 and 70 characters.

Text / HTML ratio

Ratio : 10%

Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.

Headings

H1	H2	H3	H4	H5	H6
2	1	9	0	0	0

Heading structure in the source code

<H1> LearnLib
<H2> a framework for automata learning
<H3> Menu
<H1>
<H3> Background
<H3> Source Code
<H3> Using LearnLib
<H3> Contribute
<H3> External Links
<H3> Recent Posts
<H3> Archives
<H3> Meta

Word cloud

learnlib14
source5
version4
read4
code3
page3
learning3
features3
wiki2
issue2
team2
github2
welcome2
note2
complete2
closed-source2
feature2
papers2
open-source2
tracker2
some2
home2
using2
wordpress2
automata2
contribute2
automatalib2
rss2
api2
google2
browse2

Keyword matrix

word	title	descriptions	heading
learnlib
source
version
read
code
page

Two Word cloud

source code2

404 Page

The website has a 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 0 images on this web page.

Good! Every image has an alternative text attributes set on this website.

Readability

Flesch–Kincaid Grade Level

5.90

Flesch Reading Ease

59.80

Coleman Liau Index

12.00

Automated Readability Index (ARI)

5.00

Dale–Chall Readability

7.80

SMOG Index

7.90

Spache Readibility

5.00

Number of letters

1575

Number of words

305

Number of sentences

Average words per sentences

Number of syllables

515

Syllables in words

527

Average syllables in words

1.69

Number of words in first three syllables

Percentage of word / syllables

16.07

Words not in Dale-Chall easy-word list

147

Words not in Spache easy-word list

107

Technologies

Mobile optimization

This website is optimal for mobile devices!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

Good! The web address is accessible in only one version. The www version is redirected to the version without www.

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Printability

Suggestion! Unfortunately, no printer-friendly CSS found.

Meta Tag (viewport tag, mobile devices)

Error! The meta tag named viewport is missing.

Speed test

Server response time

The server response time is fast enough.

Loading time

1,072 ms

Table layout

Good! No nested tables found.

Number of HTTP resources

Number of source domains

Render blocking resources

The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files

https://learnlib.de/.. /jquery.slim.min.js?ver=4.9.4
https://learnlib.de/.. /popper.min.js?ver=4.9.4
https://learnlib.de/.. /bootstrap.min.js?ver=4.9.4
https://learnlib.de/.. /navigation.js?ver=4.9.4

List of render blocking css files

https://fonts.googleapis.com/css?family=Nunito:300,400,700
https://learnlib.de/.. /styles.css?ver=5.0.1
https://learnlib.de/wp-content/themes/learnlib/style.css?ver=4.9.4
https://learnlib.de/.. /font-awesome.min.css?ver=4.9.4

Speed test – Javascript

Javascript

Error! Too many javascript files found which slows down the page load on the website.

https://learnlib.de/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://learnlib.de/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
https://learnlib.de/wp-content/plugins/crayon-syntax-highlighter/js/min/crayon.min.js?ver=_2.7.2_beta
https://learnlib.de/wp-includes/js/jquery/ui/core.min.js?ver=1.11.4
https://learnlib.de/wp-includes/js/jquery/ui/datepicker.min.js?ver=1.11.4
https://learnlib.de/wp-content/themes/twentytwelve-learnlib/js/navigation.js?ver=1.0
https://learnlib.de/wp-includes/js/wp-embed.min.js?ver=4.7.4

File size of all javascript files combined

139.82KB

Javascript minifying

You can save 683B (33% compression) on the analysed URL by minifying the javascript files.

Speed test – CSS

CSS

Good! Just a few CSS files are used on this website.

https://learnlib.de/wp-content/plugins/contact-form-manager/css/xyz_cfm_shortcode_style.css?ver=4.7.4
https://learnlib.de/wp-content/plugins/crayon-syntax-highlighter/css/min/crayon.min.css?ver=_2.7.2_beta
https://learnlib.de/wp-content/themes/twentytwelve-learnlib/style.css?ver=4.7.4
https://learnlib.de/wp-content/themes/twentytwelve-learnlib/css/learnlib-header.css

File size of all css files combined

516.65KB

CSS minifying

You can save 322.2KB (66% compression) on the analysed URL by minifying the CSS files.

By minifying https://learnlib.de/wp-content/themes/learnlib/style.css?ver=4.9.4 you can save 322KB (67% compression rate)
By minifying https://learnlib.de/.. /styles.css?ver=5.0.1 you can save 204B (13% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

27.53KB

Gzip compression

Error! By using Gzip you can save 408.5KB (85% compression) on your site.

By compressing https://learnlib.de/wp-content/themes/learnlib/style.css?ver=4.9.4 you can save 408.5KB (85% compression rate)
By compressing https://learnlib.de/.. /jquery.slim.min.js?ver=4.9.4 you can save 44.6KB (65% compression rate)
By compressing https://learnlib.de/.. /bootstrap.min.js?ver=4.9.4 you can save 37.3KB (74% compression rate)
By compressing https://learnlib.de/.. /font-awesome.min.css?ver=4.9.4 you can save 23.4KB (77% compression rate)
By compressing https://learnlib.de you can save 21.4KB (78% compression rate)
By compressing https://learnlib.de/.. /popper.min.js?ver=4.9.4 you can save 12KB (63% compression rate)
By compressing https://learnlib.de/.. /navigation.js?ver=4.9.4 you can save 1.5KB (71% compression rate)
By compressing https://learnlib.de/.. /styles.css?ver=5.0.1 you can save 1KB (61% compression rate)

Speed test – Browser cache

Number of static resources (image, JS, CSS)

Browser cache

The browser cache is not set correctly for all elements.

URL	Duration
https://learnlib.de/.. /header-soft.jpg	Expiry time is not specified
https://learnlib.de/.. /learning.png	Expiry time is not specified
https://learnlib.de/wp-content/themes/learnlib/public/images/tu.png	Expiry time is not specified
https://learnlib.de/wp-content/uploads/2017/10/artifact-badge.png	Expiry time is not specified
https://learnlib.de/wp-content/uploads/2017/10/features.jpg	Expiry time is not specified

Speed test – Images

File size of all images combined

244.58KB

Image optimisation

You can save 100.5KB (44% compression) by optimising the images below:

By lossless compressing the https://learnlib.de/wp-content/uploads/2017/10/features.jpg you can save 36.6KB (47%) data.
By lossless compressing the https://learnlib.de/.. /header-soft.jpg you can save 34.6KB (51%) data.
By lossless compressing the https://learnlib.de/wp-content/themes/learnlib/public/images/tu.png you can save 15.7KB (86%) data.
By lossless compressing the https://learnlib.de/.. /learning.png you can save 13.5KB (21%) data.

Traffic

Alexa

11525038

Links

We found a total of 44 different links.
Internal links: 22
External links: 22

External links:

Link text (anchor)	Link strength
Source Repository
API Documentation
Wiki
Q&A
Issue Tracker
LGPLv3
Chair for Programming Systems
TU Dortmund University, Germany
former closed-source version
Google Scholar
Browse the source code of LearnLib
Browse the source code of AutomataLib
Maven site
API docs
some examples
wiki
developers google group
issue tracker
LearnLib @ GitHub
AutomataLib @ GitHub
WordPress.org
Proudly powered by WordPress

Internal links:

Link text (anchor)	Link strength
LearnLib
Skip to content
Home
News
Downloads
Version History
Features
Performance
Resources
Discussion Groups
Publications
Team
Help
Contact
team
features
Papers on LearnLib
Open Source release of LearnLib
May 2013
Log in
Entries RSS
Comments RSS

Website security

213.133.104.155

External hidden links

Good! No hidden external links found

Looking for eval()

Good! No eval(bas64_decode()) scripts are found

Checking for XSS vulnerability

No XSS vulnerability found

Email encryption

Good! We have not found any unencrypted email addresses.

Sites on same ip

ebp-heiztechnik.de

reiki-work.de

hitengine.de

lopez-fotodesign.com

blind-guardian.com

gamesboutique.de

lopez-fotodesign.de

Icons

Favicon

Error! No favicon is found. Using favicon helps to build a better brand quicker.

Order of Heading elements on mobile by position

H1 : LearnLib, ( 24px from top )
H2 : a framework for automata learning, ( 68px from top )
H3 : Menu, ( 116px from top )
H1 : , ( 193px from top )
H3 : Background, ( 553px from top )
H3 : Source Code, ( 702px from top )
H3 : Using LearnLib, ( 851px from top )
H3 : Contribute, ( 1024px from top )

Typos

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SEO report of learnlib.de