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Webtechnologien, Webentwicklung, Webdesign, HTML usw. 
Allgemeine Informationen Webtechnologien
Wiki Selfhtml     Webkompetenz     Programmier-Crashkurs für Journalisten, Digitaler Wandel     MDN Web Docs

World Wide Web Technology Surveys, W3Techs

WHATWG (Web Hypertext Application Technology Working Group)
Wikipedia     heise online

WICG (Web Incubator Community Group)
Web Incubator Community Group

Allgemeine Informationen Webentwicklung, Webdesign
Digital Guide Ionos     Digital Guide Ionos     Andreas Pfund     EDV-Lehrgang     meine-erste-homepage.com     Michael Albers

CSS, HTML und Javascript mit {stil}     homepage-buttons.de     Webdesign Journal     Dr. Web

Thema Webentwicklung, heise online     Thema Webdesign:   heise online     t3n digital pioneers     Digital Guide Ionos

Hub:   OMS AG     Digital Guide Ionos

SPA (Single Page Application):   t3n digital pioneers     Wikipedia     Blog Magnolia     heise online

Open Web Docs
heise online     Open Web Docs

Mobile Website
Wikipedia
Optimierung von Websites für Mobilgeräte, Google

Responsive Webdesign
Ryte Wiki     Wiki Seobility     konversionsKRAFT     HTML-Seminar     Andreas Hammer, Tutorials.at     EDV-Lehrgang

Digital Guide Ionos     Thema Responsive Webdesign, t3n

Viewport:   Ryte Wiki     Wiki Seobility

Media Queries:   Wiki Seobility     CSS, HTML und JavaScript mit {stil}     Wiki Selfhtml

WCAG (Web Content Accessibility Guidelines)
Ryte Wiki
Barrierefreies Webdesign
Dev Insider
Wikipedia
heise online
Accessibility Guidelines Working Group, W3C

HTML (Hypertext Markup Language)
Allgemeine Informationen
Ryte Wiki
Kategorie HTML, Wikipedia
Mozilla Developer Network
HTML-Seminar.de
A Coding Project
Selfhtml     Startseite Wiki     Referenz Elemente     Referenz Attribute     Linkliste     Forum     heise online
HTML & Co., Jan Schmager

HTML5
Dev Insider
Ryte Wiki
Wikipedia
Handbuch, Webkompetenz
Linksammlung
Thema HTML5, heise online

HTML 5.1, HTML 5.2
heise online
heise online
golem.de
t3n digital pioneers

Sonderzeichen
Ryte Wiki     Prüfziffernberechnung in der Praxis     HTML-Entities     Wolfgang Frank     Wiki Selfhtml     Christian Rieke

Website Builders.com     sonderzeichen.de

iframe
Ryte Wiki     Wikipedia     CSS, HTML und JavaScript mit {stil}     W3schools     MDN Web Docs     heise online

Formular
Wikipedia
Wikibook
selfhtml wiki
selfhtml wiki
Kategorie Formular, selfhtml wiki
Formular-Chef

Webeditor
Ryte Wiki
selfhtml wiki
Dr. Web
Kategorie HTML-Editor, Wikipedia
Dev Insider
blechtrottel.net
Blumentals Software

Web Components
Blog Cyon
Blog Codecentric
entwickler.de
MDN Web Docs
Web Components.org

Shoelace
entwickler.de     Shoelace     GitHub

AMP (Accelerated Mobile Pages)
Ryte Wiki
Sistrix
Wikipedia
heise online
heise online
heise online
heise Developer
heise online
heise online
Thema AMP, golem.de
AMP Project
GitHub
Tutorialspoint

Zeichensatz, Zeichencodierung
Artikel und Tutorials, W3C
Webkompetenz

Schriftart
HTML-Schriften unter der Lupe, Gerrit van Aaken
Kategorie Schriftart, Wikipedia
t3n digital pioneers

Farben
Farben im Webdesign
Michael Jendryschik     GREYD GmbH     Der Informationsdesigner     Canva     99designs     Canva     Wiki Selfhtml

Colors Tutorial, W3schools

Farbnamen und Farbcodes     Farbnamen und Farbcodes     Farbnamen und Farbcodes     Farbtabelle

HTML Color Codes     Hermann Wacker     Encycolorpedia     ColorHexa

Color Picker 1     Color Picker 2     WorkWithColor     Adobe Color     Contrast Checker

Farbverlauf erstellen
t3n digital pioneers     W3Schools.com     CSS, HTML und JavaScript mit {stil}     CSS Gradient

Gradient Image Maker, Dynamic Drive     Gradients Maker, Webestools

Breadcrumb-Navigation
Wikipedia
Lexikon SEO-Analyse
Wiki Seobility
Ryte Wiki
Digital Guide Ionos
t3n digital pioneers

Google web.dev
heise online
Blog
Website

Google Web Vitals
heise online
Dev Insider
seonative
Google
GitHub
heise online

Tools
Website Planet     Designer in Action     MonsterPost     Webdesign Journal

CSS (Cascading Style Sheets)
Ryte Wiki
Kategorie Cascading Style Sheets, Wikipedia
selfhtml wiki
Kategorie CSS, selfhtml wiki
HTML-Seminar
EDV-Lehrgang
MDN Web Docs
W3schools:   Tutorial     Reference
CSS 4 you
CSS Fundgrube mit Tipps, Tricks und Anleitungen
CSS−TRICKS
The StyleWorks
CSS-Wiki.com
Cascading Style Sheets home page, W3C
Ich lerne CSS!
CSS2 Specification, W3C
CSS2 Spezifikation, Deutsche Übersetzung, Edition W3
heise Developer
heise Developer
Thema CSS, heise online
Thema CSS, t3n digital pioneers

CSS 3
Webkompetenz     HTML-Seminar

CSS Flexbox
Wiki Selfhtml     Digital Guide Ionos     Blog Kulturbanause     On Design     W3schools

CSS Grid
Wiki Selfhtml     Digital Guide Ionos     Blog Kulturbanause     On Design     W3schools

text-align
Wiki Selfhtml     W3schools     MDN Web Docs     CSS-Tricks

Frameworks
Designer in Action

CGI (Common Gateway Interface)
Wikipedia
A Coding Project

JavaScript
Dev Insider
Ryte Wiki
Wikipedia
selfhtml wiki
selfhtml wiki
Kategorie JavaScript, selfhtml wiki
JavaScript Hero
Prof. Jürgen Plate
JavaScript Kurs
MDN Web Docs
molily, Mathias Schäfer
JavaScript und Ajax, Rheinwerk Openbook
JavaScript, The Right Way
W3Schools.com
tutorialspoint
RIP Tutorial
jswelt
kostenlose.javascripts.de
JavaScript Kit
Informatik Aktuell
heise Developer
heise Developer
20 Jahre JavaScript, heise iX
25 Jahre JavaScript, heise online
Thema JavaScript, heise online

JSLint
Wikipedia     JSLint     GitHub

JSHint
Wikipedia engl.     JSHint     GitHub

ESLint
Wikipedia Engl.     heise online     heise online     heise online     Blog     Website     GitHub

Snowpack
heise online     Snowpack     GitHub

Stimulus
Stimulus     GitHub

Ketting
heise online     Evert Pot     GitHub

MemLab
Engineering at Meta

Babel
Wikipedia engl.     heise online     heise online     heise online     heise online     Blog     Website     GitHub

JetBrains WebStorm
Wikipedia     heise online     heise online     heise online     heise online     The WebStorm Blog     JetBrains

State of JavaScript
heise online     heise online     heise online

State of JavaScript     State of JavaScript 2020     State of JavaScript 2021     State of JavaScript 2022

Ajax (Asynchronous JavaScript and XML)
Ryte Wiki
selfhtml wiki
Wikipedia
Wikibooks
HTML-seminar.de
admin-wissen.de
Thema Ajax, heise online

WebAssembly
Dev Insider
entwickler.de
Wikipedia
heise Developer
heise Developer
WebAssembly
GitHub
WebAssembly Working Group, W3C
GitHub
WebAssembly Core Specification, W3C
MDN Web Docs
tutorialspoint
Dev Insider     Thema WebAssembly, heise online

Bytecode Alliance
heise online     Bytecode Alliance

Mozilla WebAssembly Studio
heise online

PHP
Dev Insider
Ryte Wiki
Kategorie PHP, Wikipedia
Digital Guide Ionos
Peter Kropff
selfhtml wiki
Kategorie PHP, selfhtml wiki
EDV-Lehrgang
PHP-Einfach.de
PHP-Kurs
A Coding Project
PHP-Handbuch
W3Schools.com
tutorialspoint
php Resource
PHP Magazin
PHP.net
Interessengemeinschaft PHP
PHP.de - Das deutsche PHP-Forum
heise online:   25 Jahre PHP     Thema PHP

PHP Foundation:   entwickler.de     PHP Foundation

Erste Schritte in PHP, Dev Insider:   Teil 1     Teil 2     Teil 3

Programmieren mit PHP, Dev Insider:   Teil 1     Teil 2     Teil 3     Teil 4     Teil 5     Teil 6     Teil 7     Teil 8     Teil 9

PHPUnit
Wikipedia     heise online     PHPUnit     GitHub

Composer
Wikipedia     PHP.de     selfhtml wiki     heise online     Composer     GitHub

PHP Insights
PHP Insights     GitHub

Bibliothek Panther
heise online     GitHub

PeachPie
heise online     PeachPie     GitHub

Frameworks
entwickler.de     Hostinger     Kategorie Freies PHP-Webframework, Wikipedia

CakePHP:   Wikipedia     Bakery     Releases     Website     GitHub

Laminas (Zend Framework):   Wikipedia     Thema Zend, heise online     Zend Framework     GitHub     tutorialspoint

Laminas

Laravel:   Wikipedia     heise online     News     Website     GitHub     tutorialspoint

Slim:   entwickler.de     Framework Slim     GitHub     Blog Daniel Opitz

Symfony:   heise online     Wikipedia     Twitter     Blog     Releases     Website     GitHub     tutorialspoint

JetBrains PhpStorm
Wikipedia     heise online     heise online     The PhpStorm Blog     JetBrains

PWA (Progressive Web Apps)
Wiki Seobility
Ryte Wiki
Wikipedia
heise Developer
heise Developer
heise Developer
heise Developer
heise Developer
heise Developer
heise Developer
heise Developer
heise online
heise online
t3n digital pioneers
t3n digital pioneers
t3n digital pioneers
t3n digital pioneers
t3n digital pioneers
heise online
heise Developer
heise Developer
heise Developer
heise Developer
heise Developer
Informatik Aktuell
heise Developer
Google web.dev
Dev Insider
Thema Progressive Web Apps, heise online

Einstieg in Progressive Web Apps, Dev Insider:   Teil 1

ActivityPub
Seite Soziales Netzwerk (Fediverse)

Maps for the Web
heise online     W3 Consortium

MathML (Mathematical Markup Language)
selfhtml wiki     Wikipedia     MDN Web Docs     W3 Consortium     tutorialspoint

Multi-Screen Window Placement
Google web.dev     W3 Consortium

WebDriver
W3 Consortium

WebGPU
Wikipedia
GPU for the Web Working Group, W3C
GitHub
W3 Consortium
Google Developers

Web Machine Learning
Web Machine Learning
GitHub
Web Machine Learning Working Group, W3C

Viewport Capture
W3 Consortium

Web API
Wikipedia Engl.     MDN Web Docs     MDN Web Docs

File API
MDN Web Docs     W3 Consortium

File System Access API
Chrome for Developers     Web Platform Incubator Community Group     CSS-Tricks     Dave Bitter

Web Audio API
Dev Insider     heise online     Wikipedia     Toptal     MDN Web Docs     W3 Consortium

Web Cryptography API
Wikipedia Engl.     heise online     MDN Web Docs     W3 Consortium

Web Locks API
MDN Web Docs     W3 Consortium     GitHub

Web Neural Network API
W3 Consortium     GitHub

VirtualKeyboard API
MDN Web Docs     Chrome for Developers     W3 Consortium     Ahmad Shadeed

Logo
Digital Guide Ionos     designenlassen     A Coding Project     Designguide     t3n digital pioneers     t3n digital pioneers

Favicon
Wiki Seobility     Ryte Wiki     Wiki Selfhtml     Wikipedia

Generator 1     Generator 2     Generator 3     Generator 4     Generator 5     Guru99

Datei robots.txt
Ryte Wiki     Wiki Seobility     Wiki Selfhtml     Morefire     Vioma     Wikipedia     Google     heise online

robots.txt Test-Tool, Ryte     robots.txt Testing Tool     robots.txt Validator 1     robots.txt Validator 2     robots.txt Validator 3

Datei .htaccess
Lexikon SEO-Analyse     Wiki Seobility     EDV-Lehrgang     Wikipedia     Wiki Selfhtml     Digital Guide Ionos     jweiland.net

SSG (Static Site Generator)
Digital Guide Ionos     CMSstash     Digital Guide Ionos

CMS (Content Management System)
Seite Cm...

Webframework
Kategorie Webframework, Wikipedia

Bootstrap
Wikipedia     heise online     heise online     Bootstrap     GitHub     Bootstrap.de

t3n digital pioneers     tutorialspoint     W3Schools

Django
Wikipedia     heise online     heise online     heise online     Django News & Events     Django     GitHub     tutorialspoint

Grails
Wikipedia     heise online     Grails     GitHub

Nikola
Nikola     GitHub

Ruby on Rails
Lexikon SEO-Analyse     Bader & Jene (PDF)     Wikipedia     Rheinwerk openbook     Thema Ruby, heise online

Ruby on Rails     GitHub

Bilder
Bildersuche.org     Public-Domain-Bilderquellen, Wikipedia     Public-domain-image-resources, Wikipedia Engl.
Wikimedia Commons
Open Content Program, The J. Paul Getty Trust
heise online
t3n digital pioneers
iRights.info
heise online

Website-Baukasten
WebsiteToolTester
trusted
t3n digital pioneers
Bestenliste Computer Bild
Bestenliste Chip

Websiteprüfung
Allgemeine Informationen
meine-erste-hompage.com

Validator
Ryte Wiki     Developers Tools, W3C

Cross-Browser-Testing
Digital Guide Ionos     Top 10 Cross Browser Testing Tools in 2021     10 Best Cross Browser Compatibility Testing Tools in 2021

6 Best Cross Browser Testing Tools 2021

Cypress
Testautomatisierung.org     Changelog     Website     t3n digital pioneers     Smashing Magazine

Google
Google     Google

Google Lighthouse
SEO Südwest     heise online     Google     GitHub

Microsoft Playwright
Releases     Website     GitHub     heise online     Test Guild     Microsoft

Websitetest mobile Geräte
MobileTest.me     Responsinator     Screenfly

Responsive Testing
Digital Guide Ionos     Responsive Web Design Checker

Web-Frontend testen
heise online

Webhosting
Lexikon SEO-Analyse     Ryte Wiki     heise online     Wikipedia

t3n digital pioneers     Thema Hosting, heise online     Glossar:   DMSolutions

Webhostingvergleich.eu     HOSTtest     stern online     Gründerküche.de

SEO(Search Engine Optimization)
explain it, YouTube     selfhtml.wiki     Kategorie Suchmaschinenoptimierung, Ryte Wiki

Kategorie Suchmaschinenoptimierung, Wikipedia     ABAKUS     Blog Searchmetrics     Suchmaschinen-Doktor.de     pro-seo.de

SEO-united.de     Site-Check     SEO-Summary.de     Frag Sistrix     Google

Onpage-SEO:   Wiki Seobility     Ryte Wiki

Offpage-SEO:   Lexikon Gründerszene     t3n digital pioneers     Ryte Wiki

Thema SEO:   heise online     t3n digital pioneers

Lexika und Glossare:   SEO-Küche     SEO-United.de     ProfiRanking

Bezahlen im Browser
heise iX
heise Developer

Foren
html.de
forum-hilfe
Das Forum für Webmaster, homepage-forum.de
XHTMLforum
Jörgs Webmaster-Forum

Webanalyse
Lexikon SEO-Analyse
Wikipedia
Kategorie Webanalyse, Ryte Wiki
heise online
Thema Web-Analytics, t3n

Logdateien auswerten
Ryte Wiki
Wikipedia
Jan Schmager
t3n digital pioneers
t3n digital pioneers
Robos Logfile- und Webmaster-Tools
AccessInfo, Ingo Turski
WebLog Expert
Stanislav Krotov

Websitestatistiken
ahrefs
Majestic SEO Backlink Checker & Site Explorer
SimilarWeb
URLMetriken
Webstatsdomain

Software
Web-Auftritt, heise Download
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