stack2learn.de | Free Online SEO Audit for stack2learn.de

Tasks

Avoid using deprecated HTML tags.

SEO

URL

Domain : stack2learn.de/

Character length : 15

Title

8051 Mikrocontrollersystem für Schulunterricht - stack2learn.de

Description

Just another WordPress site

Keywords (meta keywords)

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

Open Graph Protocol

Good! The OG (Open Graph) protocol is set on this website.

locale: de_DE
type: website
title: stack2Learn 8051 Mikrocontrollersystem für den Schulunterricht
description: Dieses stack2Learn System richtet sich an alle, die sich mit dem Mikrocontroller der 8051-Familie im Unterricht, als lehrende oder lernende, beschäftigen.
url: http://www.stack2Learn.de/home
site_name: Dokumentation stack2Learn
image: https://stack2Learn.de/wp-content/uploads/sites/2/2016/10/stack2Learn-8051-mikrocontroller-board-schulunterricht.jpg

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://stack2learn.de/robots.txt

User-agent	Disallowed for the search engines
*	/wp-admin/ /impressum/ /agb/ /datenschutzbelehrung/ /zahlung-und-versand/ /widerrufsbelehrung/ /datenschutz/ /baustelle/

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: ”de”.

Title

8051 Mikrocontrollersystem für Schulunterricht - stack2learn.de

Character length : 63

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

Text / HTML ratio

Ratio : 3%

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
1	8	0	8	0	0

Heading structure in the source code

<H1> stack2Learn 8051 Mikrocontrollersystem
<H2> 8051 Mikrocontroller System für den Schulunterricht
<H2> herzlich Willkommen auf stack2Learn.de
<H2> stack2Learn Boards
<H4> 8051 Mikrocontroller Boards
<H4> ZusatzModule
<H4> Experimentierplatinen
<H2> stack2Learn API
<H4> API für stack2Learn Boards
<H2> stack2Learn Akademie
<H4> Aufgaben zum Üben
<H4> 8051 Mikrocontroller Video-Tutorials
<H4> 8051 Mikrocontroller Video-Tutorials
<H4> 8051 Mikrocontroller Video-Tutorials
<H2> Unsere Kunden
<H2> Lizenz
<H2> Bildungsrabatt

Word cloud

mikrocontroller9
system6
api4
boards4
lizenz4
shop3
website3
video-tutorials3
zusatzmodule3
experimentierplatinen3
home3
kurs2
how2
et-tutorials2
video2
üben2
programmieren2
kostenloser2
aufgaben2
unterricht2
unported2
atmel2
commons2
schulunterricht2
about2
creative2
namensnennung-nichtkommerziell-keinebearbeitung2

Keyword matrix

word	title	descriptions	heading
mikrocontroller
system
api
boards
lizenz
shop

Two Word cloud

mikrocontroller video-tutorials3
aufgaben zum2
video kurs2
unported lizenz2
für den2
boards zusatzmodule2

Three Word cloud

kurs von et-tutorials.de2
zusatzmodule experimentierplatinen stack2learn api2

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 12 images on this web page.

Alternate attributes for the following 9 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

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 not fast enough: 0.47 seconds have passed until the page started to load.

Loading time

1,973 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

http://stack2learn.de/wp-includes/js/jquery/jquery.js?ver=1.12.4
http://stack2learn.de/.. /jquery-migrate.min.js?ver=1.4.1
http://stack2learn.de/.. /front.min.js?ver=1.2.45

List of render blocking css files

http://stack2learn.de/.. /styles.css?ver=5.1.1
http://stack2learn.de/.. /front.min.css?ver=5.0.2
http://stack2learn.de/.. /base.css?ver=21.0.1
http://stack2learn.de/.. /layout.css?ver=21.0.1
http://stack2learn.de/.. /shortcodes.css?ver=21.0.1
http://stack2learn.de/.. /animations.min.css?ver=21.0.1
http://stack2learn.de/.. /jquery.ui.all.css?ver=21.0.1
http://stack2learn.de/.. /jplayer.blue.monday.css?ver=21.0.1
http://stack2learn.de/.. /responsive.css?ver=21.0.1
http://fonts.googleapis.com/css?family=Roboto%3A1%2C300%2C400%2C400i...
http://fonts.googleapis.com/css?family=Lato%3A1%2C300%2C400%2C400ita...
http://stack2learn.de/.. /style.css?ver=21.0.1

Speed test – Javascript

Javascript

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

http://stack2learn.de/lib/js/jquery/jquery.js
http://stack2learn.de/lib/js/jquery/jquery-migrate.min.js
http://stack2learn.de/modules/5c168227/js/front.js
http://stack2learn.de/modules/6996dff6/includes/js/jquery.form.min.js
http://stack2learn.de/modules/6996dff6/includes/js/scripts.js
http://stack2learn.de/lib/js/jquery/ui/core.min.js
http://stack2learn.de/lib/js/jquery/ui/widget.min.js
http://stack2learn.de/lib/js/jquery/ui/mouse.min.js
http://stack2learn.de/lib/js/jquery/ui/sortable.min.js
http://stack2learn.de/lib/js/jquery/ui/tabs.min.js
http://stack2learn.de/lib/js/jquery/ui/accordion.min.js
http://stack2learn.de/template/betheme/js/plugins.js
http://stack2learn.de/template/betheme/js/menu.js
http://stack2learn.de/template/betheme/assets/animations/animations.min.js
http://stack2learn.de/template/betheme/assets/jplayer/jplayer.min.js
http://stack2learn.de/template/betheme/js/parallax/translate3d.js
http://stack2learn.de/template/betheme/js/scripts.js
http://stack2learn.de/lib/js/comment-reply.min.js
http://stack2learn.de/lib/js/embed.min.js

File size of all javascript files combined

899.20KB

Javascript minifying

You can save 6KB (29% compression) on the analysed URL by minifying the javascript files.

Speed test – CSS

CSS

Error! Too many CSS files detected that slows down the page load.

http://stack2learn.de/modules/6996dff6/includes/css/styles.css
http://stack2learn.de/modules/5c168227/css/front.css
http://stack2learn.de/template/betheme/css/base.css
http://stack2learn.de/template/betheme/css/layout.css
http://stack2learn.de/template/betheme/css/shortcodes.css
http://stack2learn.de/template/betheme/assets/animations/animations.min.css
http://stack2learn.de/template/betheme/assets/ui/jquery.ui.all.css
http://stack2learn.de/template/betheme/assets/prettyPhoto/prettyPhoto.css
http://stack2learn.de/template/betheme/assets/jplayer/css/jplayer.blue.monday.css
http://stack2learn.de/template/betheme/css/responsive.css
http://stack2learn.de/template/stack2Learn-child/main.css

File size of all css files combined

605.69KB

CSS minifying

You can save 4.1KB (15% compression) on the analysed URL by minifying the CSS files.

By minifying http://stack2learn.de/.. /layout.css?ver=21.0.1 you can save 2.3KB (12% compression rate)
By minifying http://stack2learn.de/.. /responsive.css?ver=21.0.1 you can save 1.7KB (18% compression rate)
By minifying http://stack2learn.de/.. /style.css?ver=21.0.1 you can save 132B (86% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

124.63KB

Gzip compression

Your site uses compression.

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://www.google.com/.. /api.js?render=6LcSMIYUAAAAAGOuRkFLGWnuTx...	5 minutes
https://www.google.com/.. /webworker.js?hl=en&v=v1545073489967	5 minutes
http://www.google-analytics.com/ga.js	2 hours
https://www.google-analytics.com/analytics.js	2 hours

Speed test – Images

File size of all images combined

930.40KB

Image optimisation

You can save 69.7KB (29% compression) by optimising the images below:

By lossless compressing the http://stack2learn.de/.. /004_about_Ueberschrift.jpg you can save 44.6KB (46%) data.
By lossless compressing the http://stack2learn.de/.. /004_lr-006_v1-00.jpg you can save 10.7KB (26%) data.
By lossless compressing the https://stack2learn.de/.. /stack2Learn-bbs-1-300x200.png you can save 9.7KB (13%) data.
By lossless compressing the http://stack2learn.de/.. /006_i2c-001_v1-00.jpg you can save 3.8KB (14%) data.
By lossless compressing the http://stack2learn.de/.. /fancy_heading_hr.png you can save 849B (73%) data.

Links

We found a total of 43 different links.
Internal links: 30
External links: 13

External links:

Link text (anchor)	Link strength
https://www.facebook.com/stack2Learn
https://plus.google.com/+stack2Learn-MC-System
https://www.youtube.com/user/stack2Learn
https://www.instagram.com/stack2learn
https://www.xing.com/profile/Viktor_Schabelski
https://8051-mikrocontroller.de
HOME
SHOP
https://www.elektronikschule.de
http://www.bbs-sig.de
Shop
erfahren Sie mehr
Shop

Internal links:

Link text (anchor)	Link strength
http://stack2learn.de
Mikrocontroller Boards
ZusatzModule
ExperimentierPlatinen
API
About
http://stack2learn.de/#
Home
8051 Mikrocontroller Boards
Experimentierplatinen
http://stack2learn.de/api
weitere Infos
Aufgaben zum ÜbenAufgaben zum Üben
8051 Mikrocontroller Video-TutorialsTeil 2: Programmieren eines 8051 kostenloser Video Kurs von et-tutorials.de
8051 Mikrocontroller Video-TutorialsTeil 1: Programmieren in C kostenloser Video Kurs von et-tutorials.de
8051 Mikrocontroller Video-TutorialsHow to? erste Schritte mit dem System
info
Nutzung
Kontakt
Home
MikrocontrollerBoards
stack2Learn API
How to ...?
About stack2Learn
Nutzungslizenz
Kontaktformular
Datenschutz
Impressum
stack2Learn.de/CreativeCommons
OK

Website security

78.46.175.217

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

Warning! The website contains at least one unencrypted email address.

Sites on same ip

investigate-nasa.com

fuxtravel.com

bfe-systemhaus.de

landolt-computer.com

radiantsystem.com

aimdesignstudio.de

building-skins.org

aktiv-software.de

avd-rostock.de

elearning-smart.com

Icons

Favicon

Good! The website uses favicon.

Order of Heading elements on mobile by position

H1 : stack2Learn 8051 Mikrocontrollersystem, ( 0px from top )
H2 : 8051 Mikrocontroller System für den Schulunterricht, ( 188px from top )
H2 : herzlich Willkommen auf stack2Learn.de, ( 293px from top )
H2 : stack2Learn Boards, ( 1071.6271972656px from top )
H4 : 8051 Mikrocontroller Boards, ( 1390.8676757812px from top )

Typos

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SEO report of stack2learn.de