theoretische-informatik.com

Tasks

Make the site mobile device friendly.
Avoid using deprecated HTML tags.
Implement the viewport meta tag.

SEO

URL

Domain : www.theoretische-informatik.com/

Character length : 32

Title

Theoretische Informatik - Grundlagen verständlich vermittelt

Description

Auf dieser Website werden die Grundlagen der theoretischen Informatik verständlich erklärt. Hier findet man Themen wie Sprachen, Graphen oder auch Algorithmen ...

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://theoretische-informatik.com/robots.txt

User-agent	Disallowed for the search engines
penthesilea	All subpages are denied to crawl
Slurp	All subpages are denied to crawl
sistrix	All subpages are denied to crawl
dotbot	All subpages are denied to crawl

Social

Social Engagement

No info found.

Content

Doctype

XHTML 1.0 Strict

Encoding

Perfect! The character encoding is set: ISO-8859-1.

Language

Error! No language localization is found.

Title

Theoretische Informatik - Grundlagen verständlich vermittelt

Character length : 60

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

Text / HTML ratio

Ratio : 33%

Good! The text / code ratio is between 25 and 70 percent.

Headings

H1	H2	H3	H4	H5	H6
2	6	1	1	0	0

Heading structure in the source code

<H1> Theoretische Informatik
<H2> Grundlagen und mehr!
<H2> Allgemeines
<H2> Sprachen
<H2> Algorithmen
<H3> Sortieralgorithmen
<H2> Automaten
<H2> Turingmaschine
<H1> Grundlagen der theoretischen Informatik verständlich erklärt
<H4> Zitat:

Word cloud

informatik9
theoretischen7
grundlagen6
sprachen4
problem4
computer3
programmieren3
studiums2
studenten2
theoretische2
automaten2
algorithmen2
grammatiken2

Keyword matrix

word	title	descriptions	heading
informatik
theoretischen
grundlagen
sprachen
problem
computer

Two Word cloud

theoretischen informatik2
theoretische informatik2
der theoretischen2

Three Word cloud

grundlagen der theoretischen2

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.

Technologies

Mobile optimization

Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 922px wide display!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

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

289 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 css files

http://www.theoretische-informatik.com/style.css

Speed test – Javascript

Javascript

Good! Just a few javascript files are detected on the website.

File size of all javascript files combined

0.00

Javascript minifying

Great! The Javascript files are minified.

Speed test – CSS

CSS

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

File size of all css files combined

5.92KB

CSS minifying

You can save 1.5KB (27% compression) on the analysed URL by minifying the CSS files.

By minifying http://www.theoretische-informatik.com/style.css you can save 1.5KB (27% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

6.60KB

Gzip compression

Error! By using Gzip you can save 4.3KB (74% compression) on your site.

By compressing http://www.theoretische-informatik.com/style.css you can save 4.3KB (74% 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
http://www.theoretische-informatik.com/images/bbg.png	Expiry time is not specified
http://www.theoretische-informatik.com/images/hbg.jpg	Expiry time is not specified
http://www.theoretische-informatik.com/images/menu_bt.gif	Expiry time is not specified
http://www.theoretische-informatik.com/images/wbg.jpg	Expiry time is not specified
http://www.theoretische-informatik.com/style.css	Expiry time is not specified

Speed test – Images

File size of all images combined

23.36KB

Image optimisation

You can save 16.7KB (81% compression) by optimising the images below:

By lossless compressing the http://www.theoretische-informatik.com/images/hbg.jpg you can save 15.2KB (83%) data.
By lossless compressing the http://www.theoretische-informatik.com/images/menu_bt.gif you can save 1.1KB (78%) data.
By lossless compressing the http://www.theoretische-informatik.com/images/wbg.jpg you can save 485B (50%) data.

Traffic

Alexa

5332406

Links

We found a total of 27 different links.
Internal links: 26
External links: 1

External links:

Link text (anchor)	Link strength
free websie templates

Internal links:

Link text (anchor)	Link strength
Theoretische Informatik
Grundlagen und mehr!
Home
Links
Mengen
Relationen
Funktionen
Vollständige Induktion
Prädikatenlogik
Beschreibungslogik
Halbordnungen
Alphabet
Wort
Formale Sprachen
Kontextfreie Grammatiken
Cocke-Younger-Kasami-Algorithmus
Pumping Lemma
O-Kalkül
Master-Theorem
Schleifeninvariante
Insertionsort
Mergesort
Automaten Grundlagen
Mealy-Automat
Moore-Automat
Grundlagen

Website security

89.107.188.33

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.

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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 : Theoretische Informatik, ( 21px from top )
H2 : Grundlagen und mehr!, ( 95px from top )
H1 : Grundlagen der theoretischen Informatik verständlich erklärt, ( 177px from top )
H2 : Allgemeines, ( 197px from top )
H2 : Sprachen, ( 367px from top )
H2 : Algorithmen, ( 537px from top )
H3 : Sortieralgorithmen, ( 630px from top )
H2 : Automaten, ( 696px from top )
H2 : Turingmaschine, ( 794px from top )

Typos

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SEO report of theoretische-informatik.com