1. W3C Link Checker
  2. W3C Markup Validation Service
  3. Feed Validator for Atom and RSS
  4. Dans Tools - Online tools for users and developers. - .htaccess, CSS, JavaScript, ...
  5. New Robots.txt Syntax Checker: a validator for robots.txt files
  6. Does my site need HTTPS?
  7. Analyze | Webbkoll - dataskydd.net - How privacy-friendly is your site?
  8. 1&1 Internet AG WebTool - Ladezeit-Check, HTML-Check, Link-Check, Meta-Tag-Check
  9. Check Browser Compatibility, Cross Platform Browser Test - Browsershots
  10. Colorblind Web Page Filter
  11. AWARE Center Homepage -- HTML Writers Guild - accessible web authoring resources and education center
  12. WebAIM: Web Accessibility for Designers
  13. WebAIM: WebAIM's WCAG 2.0 Checklist - for HTML documents
  14. WebAIM: Section 508 Checklist
  15. WebAIM: Color Contrast Checker
  16. WAVE Web Accessibility Tool
  17. Contrast Ratio: Easily calculate color contrast ratios. Passing WCAG was never this easy!
  18. Favicon Generator - and icon gallery
  19. Faviconer - Draw or Generate favicon.ico website icon
  20. favicon.ico Generator
  21. Free Online Icon Generator | Convert Image to *.ICO File
  22. HTTPDIFF
  23. Web Stuff - Delorie's HTML Authoring Services
  24. I want to: Web 2.0 applications, utilities and resources
  25. Firebug - Web Development Evolved - use Firefox to edit, debug, and monitor CSS, HTML, and JavaScript live in any web page
  26. OWASP - Open Web Application Security Project, the free and open software security community
  27. OWASP Testing Project - OWASP - Testing Guide
  28. Category:OWASP Code Review Project - OWASP - Code Review Guide
  29. Kostenloser Backlink Checker » SEOkicks SEO Tools
  30. TIDE - Tiny IDE for small JavaScript programs, browser independent
  31. World Wide Web Consortium - Web Standards (W3C)
  32. Web Hypertext Application Technology Working Group (WhatWG)
  33. The Web Standards Project
  34. Rex Swain's HTTP Viewer - See exactly what an HTTP request returns to your browser
  35. bjellis Webwelt - Einstieg ins Webdesign
  36. PlanetHTML - Der einfachste Weg HTML zu lernen!
  37. SELFHTML
  38. SELFHTML: Navigationshilfen / Kurzreferenz: HTML
  39. SELFHTML: Navigationshilfen / Kurzreferenz: CSS
  40. HTML Reference (Tizag)
  41. CSS Property Reference (Tizag)
  42. HTTP Status Codes — httpstatuses.com
  43. HTML Help by The Web Design Group
  44. PlanetHTML - Der einfachste Weg HTML zu lernen!
  45. (Please) Stop Using Unsafe Characters in URLs | Perishable Press
  46. Web Page Design | Website Design | Website Designing | Web Site Design | Web Site Designing | Web Page Development | Web Development (web-source.net)
  47. W3Schools Online Web Tutorials
  48. HTML 4.0 Reference
  49. Character and entity references in HTML 4 (Jukka "Yucca" Korpela)
  50. Subotnik: Beiträge zu HTML, CSS und Netzkultur
  51. HTML Goodies
  52. Extensible Markup Language (XML) 1.0 (Third Edition)
  53. XML Tutorial
  54. DTD Tutorial
  55. XML.com: A Technical Introduction to XML
  56. XML.com: XML From the Inside Out -- XML development, XML resources, XML specifications
  57. XML Resources
  58. The XML FAQ
  59. Website Publisher - Guides, Tutorials, and Advice for Internet Publishers.
  60. Date & Time Formats on the Web
  61. Useful HTML Meta Tags - cache, no-cache, robots, refresh, content, keywords, description, expires, author, etc.
  62. HTML META Tags
  63. The Open Graph protocol - og:... meta properties
  64. Geo Tag Elements
  65. GeoURL (2.0)
  66. || GeoURL re-loaded... ||
  67. Get Coordinate - Wiki Koordinaten ermitteln
  68. WITW using GoogleMaps Where In The World
  69. Tagzania - Tagging the planet
  70. plazes.beta - geotagged LAN, WLAN and WiFi zones
  71. BlockRocker - Geotagging tools for Flickr, blogs, YouTube, del.icio.us, ...
  72. Wikipedia:WikiProjekt Georeferenzierung - Wikipedia
  73. Geoinformationssysteme - Nomads
  74. Select Country Heavens Above, location database, latitude/longitude of towns
  75. GeoURL location resources
  76. Geolocation in Firefox
  77. ClustrMaps - Hit counter map shows locations of all visitors to your site - free
  78. RevolverMaps - Free 3D Visitor Maps
  79. Main Page - Google Mapki
  80. Free Map Tools
  81. Documents about WWW written or recommended by Jukka Korpela
  82. useit.com: Jakob Nielsen's site (Usable Information Technology)
  83. css Zen Garden: The Beauty in CSS Design
  84. XTerm Color Tables
  85. Color Theory Tutorial by Worqx
  86. Colors on the Web - Color Theory for web designers - color combination, color wheel, color schemes - new pages with bells and whistles and waitings
  87. Color Wizard - Color Scheme Generator - Colors on the Web - tool for color schemes
  88. EasyRGB - The first RGB and COLOR search engine on the Web! - color matching, harmonies, calculator
  89. Color Blender - get midpoints between two colors
  90. 24 - full screen color picker
  91. milov.nl: bookmarklet: !usedcolors
  92. 4096 Color Wheel
  93. The DHTML Color Calculator
  94. ColorBlender.com | Your free online color matching toolbox
  95. COLOURlovers Coup.0 :: Colour Lovers
  96. kuler - Adobe's colour community tool, sadly needs Flash 9 and ActionScript 3
  97. Color Palette Generator from an image
  98. Color Picker
  99. Rainbow Words
  100. Grab Website Colors - Color Scheme Extraction Tool
  101. GitHub - Siddharth11/Colorful: ✨ A curated list of awesome resources to choose your next color scheme ✨
  102. Dr. Web Magazin
  103. Weblehre - Informationen für den Webmaster
  104. O'Reilly Network's ONLamp.com -- web development, linux, apache, mysql, perl, php, python, bsd
  105. Die Goldenen Regeln fuer schlechtes HTML.
  106. WWW-Horrorkabinett
  107. Galerie des miesen Marketings - Übersicht - Zorno.de
  108. Jaganelli.de - die krankeste Hompeitsch im Intanet
  109. Die Endgültige Müllseite
  110. 404 Research Lab
  111. it's all lost and stoof - ibiblio's 404 page in ~200 languages
  112. Home of The Webalizer - a fast, free web server log file analysis program.
  113. AWStats - Free log file analyzer for advanced statistics (GNU GPL).
  114. Piwik - Web analytics - Open source
  115. openshift/piwik-openshift-quickstart · GitHub
  116. Goodbye Google Analytics. Hello Piwik. | The FreedomSponsors blog
  117. Social-Media-Buttons datenschutzkonform nutzen | c't - Shariff, Nachfolger von 2-Klick
  118. heiseonline/shariff · GitHub - privacy protected social network sharing buttons
  119. 2 Klicks für mehr Datenschutz | c't
  120. +1 Button | Google+ Platform for Web | Google Developers
  121. trash.net:faq:htaccess
  122. .htaccess Cheat Sheet - All Rules You Will Ever Need, Listed On One Page for Apache .htaccess Server Rules
  123. Documentation: Apache HTTP Server - The Apache HTTP Server Project
  124. mod_access - Apache HTTP Server - .htaccess Allow, Deny, Order
  125. What is .htaccess? - Apache .htaccess Guide, Tutorials & Examples
  126. Htaccess (askapache.com)
  127. THE Ultimate Htaccess from the askapache.com htaccess section
  128. Mod_Rewrite Variables Cheatsheet (askapache.com)
  129. Htaccess Rewrites - Rewrite Tricks and Tips (askapache.com)
  130. mod_rewrite in .htaccess in Depth (including precedence) - Chuck Kollars
  131. Stupid htaccess Tricks : Perishable Press
  132. Htaccess Tools - get help with your .htaccess files
  133. de.comm.infosystems.www.servers - FAQ
  134. Netcraft - What's that site running?
  135. W3Techs - extensive and reliable web technology surveys
  136. Spell with flickr

    Server Bits

  137. Icinga | Open Source Monitoring - Icinga 2, general-purpose monitoring application; rewrite of Icinga, fork of Nagios
  138. How Fail2Ban Works to Protect Services on a Linux Server | DigitalOcean

    Free Web Space & Image Hosting

  139. Free Webspace and Free Web Hosting Services
  140. FreeWebspace.net - The largest guide to free webhosting.
  141. MySQLDumper - Sichern von MySQL-Datenbanken (z.B. Foren, Gästebücher und Onlineshops)
  142. freeweb.de Tarif - 5GB/10GB, domain, PHP, mail
  143. Free Hostia: free php, mysql and domain hosting - 250MB/6GB
  144. Unsee — Free online private photo sharing - temporary image hosting for up to 1 hour, plus viewer gets the IP watermarked..
  145. Frubar FruPic - Picture Upload - simple, small
  146. ImageVenue - Image Hosting and Photo Hosting for bloggers, message board users and eBay sellers! - for hotlinking images <3MB, resizing option, no registration required, unlimited time, bandwidth and diskspace
  147. Bilder & Fotos hochladen, Image Upload, File Upload Center - hotlinking <4MB *
  148. Photobucket.com Free Image Hosting - Online Photo Albums - Photo Sharing - for hotlinking images <250KB, automatically resizing, limited bandwidth and diskspace in free account
  149. Postimage.org - free image hosting / image upload - hotlinking <8MB, including upload for forums
  150. Kostenlos Bilder und Fotos hochladen - Pic-Upload.de - hotlinking <30MB
  151. Screenshot comparison - Make comparison of screenshots
  152. File-Upload.net - Ihr kostenloser File Hoster! - store <1000MB
  153. Load.to Uploadservice - store <1000MB
  154. ImageNetz.de - We host everything! - store <1555MB
  155. Imgur: The magic of the Internet - [size?]
  156. Free file hosting. File sharing. File upload. FileFactory.com - store <2000MB
  157. WeTransfer - "send" large files per email and forward storing
  158. Send large files up to 5GB for free

    Hoster

  159. Webhosting, Managed Server, VServer & Co. vergleichen
  160. Webhoster Webspace & Webhosting Vergleich
  161. Webhosting und Webspace - hostsuche Provider-Vergleich
  162. Hostsharing eG - OpenSource Webhosting: Home
  163. all-inkl.com
  164. Hallo, wir sind Uberspace - Uberspace.de
  165. Webseiten-Hosting mit Rundum-Schutz | JPBerlin – Politischer Provider
  166. Webhosting für CMS, Webshops, Server und SEO | webgo.de (war WebGo24)
  167. IP-Projects - Rootserver, Webhosting, V-Server, Domains, SSL, Housing
  168. Die Hosting Marke: Keyweb
  169. Hosting und Internetlösungen - OVH
  170. WebhostOne - The ONE you need! ++ Ihr Webhosting-Provider für Webspace, Reseller-Hosting, Managed Server und Domains
  171. Webhosting, Server, Housing, Colocation, Domains und Internet Access - artfiles
  172. Gutes Hosting zu günstigen Preisen - schwarzkünstler®
  173. Dein SSD Hosting zum Wunschpreis - Hostdream
  174. Simple Cloud Infrastructure for Developers | DigitalOcean

    CMS, Builder

  175. Open Source CMS Demos & Information - opensourceCMS - try before you install
  176. CMS Design Resource :: CMS Reviews, CMS Showcase, and Content Management Articles
  177. Open Source Content Management System List (perl, php, python, m4, java, etc) Blog API
  178. WebsiteBaker CMS | Open Source Content Management - easy CMS
  179. WebMake: Welcome to WebMake - simple CMS in perl

    misc

  180. Webmin - a web-based interface for system administration for Unix
  181. List of free software for Web 2.0 services - Wikipedia, the free encyclopedia
  182. etracker Home
  183. StatCounter Free invisible Web tracker, Hit counter and Web stats
  184. GoStats.com | Web Stats Hit Counter & Free Site Traffic Analysis
  185. SourceForge.net: Project Info - Psunami Bulletin Board
  186. WebCalendar - web-based calendaring and scheduling system, perl CGI
  187. Wirksamkeit von Disclaimern für Webseiten
  188. Warum Disclaimer dem WWW schaden
  189. Subotnik: Disclaimer
  190. Urteil des Landgerichts Hamburg, Az. 312 O 85/98
  191. Make A Shorter Link
  192. Evaluation, Repair, and Transform Tools for Web Content Accessibility
  193. HTML converters
  194. Homepage mit HTML-der Versuch eines Laien(Workshop)
  195. Mediengestalter Thomas Jahn - Tipps für Mediengestalter
  196. On the use of some MS Windows characters in HTML (Jukka "Yucca" Korpela)
  197. Suchmaschinen Tricks: Suchmaschineneintrag, Suchmaschinen Optimierung und Suchmaschinen Anmeldung
  198. The Web Robots Pages - robots.txt
  199. Bots vs Browsers - Public Bots and User Agents Database and Commentary
  200. PHP: Hypertext Preprocessor
  201. Dev Shed - The Open Source Web Development Site
  202. eXtropia - the open web technology company
  203. Our Free Webmaster Tools Make Maintaining Your Website a Breeze
  204. Index of /webtools (John Walker, Fourmilab)
  205. plainJS - The Vanilla JavaScript Repository
  206. Hattos Utilities (JavaScript)
  207. SIMILE Widgets
  208. jQuery
  209. Flot: Attractive JavaScript plotting for jQuery
  210. jqPlot Charts and Graphs for jQuery
  211. Webmaster Tips: CSS, HTML, SEO, Adsense, PHP articles and webmaster tools
  212. Webmaster Tips: Site Information Tool - Whois, Google PR, Alexa rank, IP info
  213. Bookmarklet Crunchinator - quickly create a bookmarklet from some javascript code
  214. Created with Free Software - FSFE
  215. Button Maker :: Kalsey Consulting Group
  216. Enhanced button maker - eKstreme.com
  217. //gtmcknight.com: Steal These Buttons
  218. MySpace Warning Labels - MyWackoSpace.com - generate label gifs, doesn't need myspace
  219. Myspace MP3 - Myspace Codes - Myspace Layouts - MyspaceGeeks.com - flash mp3 player, doesn't need myspace
  220. Icon Archive - 26,300+ free icons, buddy icons, xp icons, vista icons, desktop icons, aim icons
  221. Royalty Free Icons & Clipart Stock Images ~ Icons Etc.
  222. Free Clipart | Download Free Clipart
  223. FlamingText: Logo Design and Button Generator Tool
  224. Cool Text: Logo and Graphics Generator
  225. iBAND Free Clip Art - Collection of Photos and Images
  226. Free Backgrounds
  227. Traffic-Guards, eine Aktion gegen Traffic-Klau bzw Bandwidth Stealing
  228. Smilies Smilie Smilys Smiley Smileys Emoticons Gifs
  229. Emoji cheat sheet for Campfire and GitHub
  230. Code to HTML converter - code2html
  231. PGP signed web-pages
  232. PGP Signing A Web Page - Part III
  233. TextCaptcha: textual CAPTCHA challenges - for example like this
  234. Forschungsstelle Abmahnwelle e.V. Gazette
  235. semacode | real-world hyperlinks
  236. Jeff Mesnil's Weblog: A bookmarklet to split HTML document within the browser
  237. MediaGoblin
  238. Piwigo is open source photo gallery software for the web | piwigo.org
  239. Menalto2Piwigo extension - Import data from a Menalto Gallery into Piwigo
  240. Fail2ban configuration for Piwigo failed logins « freeandthings
  241. Migrating from Gallery3 to Piwigo – PCR's notepad
  242. Extensions - Import data from a Menalto Gallery into Piwigo; Piwigo extension
  243. Gallery | Your photos on your website - discontinued Menalto Gallery project
  244. Gallery Codex - Menalto Gallery manual
  245. Gallery 3 User Contributed Modules and Themes
  246. Gallery2 Themes Demo Site - Showcase of Themes, Colorpacks and Frames for Gallery2
  247. Latest Gallery Sites | G2-Sites.com - Gallery Directory
  248. Unclassified NewsBoard Forum - UNB, you don't have to use phpBB
  249. ForumMatrix - Compare Them All
  250. Home - AkeebaBackup.com
  251. Joomla! The CMS Trusted By Millions for their Websites
  252. Joomla! Extensions Directory
  253. Internetrecht
  254. Bettinger Schneider Schramm | Patentanwälte Rechtsanwälte | München - Datenbank über Entwicklungen im Bereich des Patentrechts, des Markenrechts und Domainrechts sowie des Rechts der Informationstechnologie
  255. Jugendschutz-Label Altersklassifizierung age-de.xml
  256. Impressum Anbieterkennzeichnungspflicht TMG § 5 Internetrecht
  257. Die Impressumspflicht nach § 5 TMG / § 55 RStV
  258. Impressumspflicht für Webseiten
  259. Muster-Datenschutzerklärung für Websites 2017 | Law-Blog
  260. Der eRecht24 Impressum Generator: Das Original!
  261. EUR-Lex - 32016R0679 - EN - EUR-Lex - EU General Data Protection Regulation (GDPR) / EU DatenSchutzGrundVerOrdnung (DSGVO) - in all European languages
  262. General Data Protection Regulation - Wikipedia - GDPR
  263. Datenschutz-Grundverordnung – Wikipedia - DSGVO / GDPR
  264. EU Member State GDPR Implementation Laws and Drafts
  265. General Data Protection Regulation (GDPR) – Final text neatly arranged
  266. Datenschutz-Grundverordnung (EU-DSGVO) als übersichtliche Website - GDPR
  267. The GDPR Checklist
  268. EDPS helping EU institutions to prepare for new chapter in EU data protection - European Data Protection Supervisor - GDPR, Guidelines address data protection requirements for the management and governance of IT infrastructure (PDF) in general, and for cloud computing services (PDF) specifically.
  269. Guide to the General Data Protection Regulation (GDPR) | ICO
  270. GDPR - A Practical Guide For Developers - Bozho's tech blog - European data protection regulation
  271. WTF is GDPR? – TechCrunch
  272. GDPR Archives - Froud on Fraud
  273. Datenschutzerklärung kostenlos erstellen: Generator und Mustertexte
  274. Datenschutz-Muster Generator für Webseiten, Blogs und Social Media - Datenschutz-Generator.deDatenschutz-Generator.de
  275. » Musterdatenschutzerklärung « ITM – Zivilrechtliche Abteilung (uni-muenster.de)
  276. GitHub - qbi/DSGVO-Liste: Informationen und Ressourcen zur Datenschutz-Grundverordnung
  277. Datenschutz-Grundverordnung - DSGVO - ULD - GDPR - Unabhängiges Landeszentrum für Datenschutz Schleswig-Holstein - Sammlung von Ratgebern und Kurzpapieren der Datenschutzkonferenz, u.a. Datenschutz bei Vereinen (PDF)
  278. Rezension: Erste Hilfe zur Datenschutz-Grundverordnung für Unternehmen und Vereine | DSGVO – Expertenwissen für die Praxis - GDPR
  279. Die DSGVO im Verein, in der NGO, in der Initiative umsetzen [2. Update] | DSGVO – Expertenwissen für die Praxis - GDPR
  280. Kleinunternehmen und Vereine - DSGVO / GDPR - Handreichungen für kleine Unternehmen und Vereine, Anforderungen und Musterverzeichnisse
  281. Datenschutz im Verein | Unabhängiges Datenschutzzentrum Saarland - DSGVO / GDPR
  282. Datenschutz | Hamburger Sportbund e. V. - Mustertexte DSGVO / GDPR
  283. DSGVO – Expertenwissen für die Praxis | Informationen zur Europäischen Datenschutzgrundverordnung - GDPR
  284. Verzeichnis von Verarbeitungstätigkeiten - DSGVO / GDPR
  285. EU GDPR and personal data in web server logs – Ctrl blog
  286. Schockwellenreiter: Die EU-DSGVO und die Photographie: Es ändert sich nichts - GDPR
  287. DSGVO – häufig gestellte Fragen, häufig verbreitete Mythen › Jan Philipp Albrecht - GDPR
  288. Topics tagged gdpr (discourse.org) - GDPR
  289. c't Magazin - DSGVO / GDPR weiterführende Links
  290. Eine Auskunft nach der DS-GVO bitte | Qbi's Weblog
  291. GDPR Hall of Shame
  292. l+f: Das DSGVO-Absurditätenkabinett | heise Security
  293. IP-Adressen und andere Nutzungsdaten - Häufig gestellte Fragen - ULD
  294. Anonymisierung der IP-Adressen in Webserver-Logfiles
  295. Verwendung von Cookies nach Datenschutzgrundverordnung nur noch bei vorheriger ausdrücklicher Einwilligung des Nutzers?
  296. Verwendung von Cookies nur noch bei ausdrücklicher Einwilligung der Nutzer?
  297. Prevent images on your page from appearing in search results - Search Console Help (google)
  298. Remove URLs Tool - Search Console Help (google)
  299. Down For Everyone Or Just Me -> Check if your website is down or up?
  300. GitHub - firehol/netdata: Get control of your servers. Simple. Effective. Awesome. https://my-netdata.io/
  301. TextFixer - Webmaster Online HTML-Tools zur Korrektur, Umwandlung und Manipulation von Texten und HTML.

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