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. Kostenloser Backlink Checker » SEOkicks SEO Tools
  27. TIDE - Tiny IDE for small JavaScript programs, browser independent
  28. World Wide Web Consortium - Web Standards (W3C)
  29. Web Hypertext Application Technology Working Group (WhatWG)
  30. The Web Standards Project
  31. Rex Swain's HTTP Viewer - See exactly what an HTTP request returns to your browser
  32. bjellis Webwelt - Einstieg ins Webdesign
  33. PlanetHTML - Der einfachste Weg HTML zu lernen!
  34. SELFHTML
  35. SELFHTML: Navigationshilfen / Kurzreferenz: HTML
  36. SELFHTML: Navigationshilfen / Kurzreferenz: CSS
  37. HTML Reference (Tizag)
  38. CSS Property Reference (Tizag)
  39. HTTP Status Codes — httpstatuses.com
  40. HTML Help by The Web Design Group
  41. PlanetHTML - Der einfachste Weg HTML zu lernen!
  42. Web Page Design | Website Design | Website Designing | Web Site Design | Web Site Designing | Web Page Development | Web Development (web-source.net)
  43. W3Schools Online Web Tutorials
  44. HTML 4.0 Reference
  45. Character and entity references in HTML 4 (Jukka "Yucca" Korpela)
  46. Subotnik: Beiträge zu HTML, CSS und Netzkultur
  47. HTML Goodies
  48. Extensible Markup Language (XML) 1.0 (Third Edition)
  49. XML Tutorial
  50. DTD Tutorial
  51. XML.com: A Technical Introduction to XML
  52. XML.com: XML From the Inside Out -- XML development, XML resources, XML specifications
  53. XML Resources
  54. The XML FAQ
  55. Website Publisher - Guides, Tutorials, and Advice for Internet Publishers.
  56. Date & Time Formats on the Web
  57. Useful HTML Meta Tags - cache, no-cache, robots, refresh, content, keywords, description, expires, author, etc.
  58. HTML META Tags
  59. The Open Graph protocol - og:... meta properties
  60. Geo Tag Elements
  61. GeoURL (2.0)
  62. || GeoURL re-loaded... ||
  63. Get Coordinate - Wiki Koordinaten ermitteln
  64. WITW using GoogleMaps Where In The World
  65. Tagzania - Tagging the planet
  66. plazes.beta - geotagged LAN, WLAN and WiFi zones
  67. BlockRocker - Geotagging tools for Flickr, blogs, YouTube, del.icio.us, ...
  68. Wikipedia:WikiProjekt Georeferenzierung - Wikipedia
  69. Geoinformationssysteme - Nomads
  70. Select Country Heavens Above, location database, latitude/longitude of towns
  71. GeoURL location resources
  72. Geolocation in Firefox
  73. ClustrMaps - Hit counter map shows locations of all visitors to your site - free
  74. RevolverMaps - Free 3D Visitor Maps
  75. Main Page - Google Mapki
  76. Free Map Tools
  77. Documents about WWW written or recommended by Jukka Korpela
  78. useit.com: Jakob Nielsen's site (Usable Information Technology)
  79. css Zen Garden: The Beauty in CSS Design
  80. XTerm Color Tables
  81. Color Theory Tutorial by Worqx
  82. Colors on the Web - Color Theory for web designers - color combination, color wheel, color schemes - new pages with bells and whistles and waitings
  83. Color Wizard - Color Scheme Generator - Colors on the Web - tool for color schemes
  84. EasyRGB - The first RGB and COLOR search engine on the Web! - color matching, harmonies, calculator
  85. Color Blender - get midpoints between two colors
  86. 24 - full screen color picker
  87. milov.nl: bookmarklet: !usedcolors
  88. 4096 Color Wheel
  89. The DHTML Color Calculator
  90. ColorBlender.com | Your free online color matching toolbox
  91. COLOURlovers Coup.0 :: Colour Lovers
  92. kuler - Adobe's colour community tool, sadly needs Flash 9 and ActionScript 3
  93. Color Palette Generator from an image
  94. Color Picker
  95. Rainbow Words
  96. Grab Website Colors - Color Scheme Extraction Tool
  97. GitHub - Siddharth11/Colorful: ✨ A curated list of awesome resources to choose your next color scheme ✨
  98. Dr. Web Magazin
  99. Weblehre - Informationen für den Webmaster
  100. O'Reilly Network's ONLamp.com -- web development, linux, apache, mysql, perl, php, python, bsd
  101. Die Goldenen Regeln fuer schlechtes HTML.
  102. WWW-Horrorkabinett
  103. Galerie des miesen Marketings - Übersicht - Zorno.de
  104. Jaganelli.de - die krankeste Hompeitsch im Intanet
  105. Die Endgültige Müllseite
  106. 404 Research Lab
  107. it's all lost and stoof - ibiblio's 404 page in ~200 languages
  108. Home of The Webalizer - a fast, free web server log file analysis program.
  109. AWStats - Free log file analyzer for advanced statistics (GNU GPL).
  110. Piwik - Web analytics - Open source
  111. openshift/piwik-openshift-quickstart · GitHub
  112. Goodbye Google Analytics. Hello Piwik. | The FreedomSponsors blog
  113. Social-Media-Buttons datenschutzkonform nutzen | c't - Shariff, Nachfolger von 2-Klick
  114. heiseonline/shariff · GitHub - privacy protected social network sharing buttons
  115. 2 Klicks für mehr Datenschutz | c't
  116. +1 Button | Google+ Platform for Web | Google Developers
  117. trash.net:faq:htaccess
  118. .htaccess Cheat Sheet - All Rules You Will Ever Need, Listed On One Page for Apache .htaccess Server Rules
  119. Documentation: Apache HTTP Server - The Apache HTTP Server Project
  120. mod_access - Apache HTTP Server - .htaccess Allow, Deny, Order
  121. What is .htaccess? - Apache .htaccess Guide, Tutorials & Examples
  122. Htaccess (askapache.com)
  123. THE Ultimate Htaccess from the askapache.com htaccess section
  124. Mod_Rewrite Variables Cheatsheet (askapache.com)
  125. Htaccess Rewrites - Rewrite Tricks and Tips (askapache.com)
  126. mod_rewrite in .htaccess in Depth (including precedence) - Chuck Kollars
  127. Stupid htaccess Tricks : Perishable Press
  128. Htaccess Tools - get help with your .htaccess files
  129. de.comm.infosystems.www.servers - FAQ
  130. Netcraft - What's that site running?
  131. W3Techs - extensive and reliable web technology surveys
  132. Spell with flickr

    Server Bits

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

    Free Web Space & Image Hosting

  135. Free Webspace and Free Web Hosting Services
  136. FreeWebspace.net - The largest guide to free webhosting.
  137. MySQLDumper - Sichern von MySQL-Datenbanken (z.B. Foren, Gästebücher und Onlineshops)
  138. freeweb.de Tarif - 5GB/10GB, domain, PHP, mail
  139. Free Hostia: free php, mysql and domain hosting - 250MB/6GB
  140. Unsee — Free online private photo sharing - temporary image hosting for up to 1 hour, plus viewer gets the IP watermarked..
  141. Frubar FruPic - Picture Upload - simple, small
  142. 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
  143. Bilder & Fotos hochladen, Image Upload, File Upload Center - hotlinking <4MB *
  144. Photobucket.com Free Image Hosting - Online Photo Albums - Photo Sharing - for hotlinking images <250KB, automatically resizing, limited bandwidth and diskspace in free account
  145. Postimage.org - free image hosting / image upload - hotlinking <8MB, including upload for forums
  146. Kostenlos Bilder und Fotos hochladen - Pic-Upload.de - hotlinking <30MB
  147. Screenshot comparison - Make comparison of screenshots
  148. swoopshare - Save files on the web - store <500MB
  149. File-Upload.net - Ihr kostenloser File Hoster! - store <1000MB
  150. Load.to Uploadservice - store <1000MB
  151. ImageNetz.de - We host everything! - store <1555MB
  152. Free file hosting. File sharing. File upload. FileFactory.com - store <2000MB
  153. WeTransfer - "send" large files per email and forward storing
  154. Send large files up to 5GB for free

    Hoster

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

    CMS, Builder

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

    misc

  176. Webmin - a web-based interface for system administration for Unix
  177. List of free software for Web 2.0 services - Wikipedia, the free encyclopedia
  178. etracker Home
  179. StatCounter Free invisible Web tracker, Hit counter and Web stats
  180. GoStats.com | Web Stats Hit Counter & Free Site Traffic Analysis
  181. SourceForge.net: Project Info - Psunami Bulletin Board
  182. WebCalendar - web-based calendaring and scheduling system, perl CGI
  183. Wirksamkeit von Disclaimern für Webseiten
  184. Warum Disclaimer dem WWW schaden
  185. Subotnik: Disclaimer
  186. Urteil des Landgerichts Hamburg, Az. 312 O 85/98
  187. Make A Shorter Link
  188. Evaluation, Repair, and Transform Tools for Web Content Accessibility
  189. HTML converters
  190. Homepage mit HTML-der Versuch eines Laien(Workshop)
  191. Mediengestalter Thomas Jahn - Tipps für Mediengestalter
  192. On the use of some MS Windows characters in HTML (Jukka "Yucca" Korpela)
  193. Suchmaschinen Tricks: Suchmaschineneintrag, Suchmaschinen Optimierung und Suchmaschinen Anmeldung
  194. The Web Robots Pages - robots.txt
  195. Bots vs Browsers - Public Bots and User Agents Database and Commentary
  196. PHP: Hypertext Preprocessor
  197. Dev Shed - The Open Source Web Development Site
  198. eXtropia - the open web technology company
  199. Our Free Webmaster Tools Make Maintaining Your Website a Breeze
  200. Index of /webtools (John Walker, Fourmilab)
  201. plainJS - The Vanilla JavaScript Repository
  202. Hattos Utilities (JavaScript)
  203. SIMILE Widgets
  204. jQuery
  205. Flot: Attractive JavaScript plotting for jQuery
  206. jqPlot Charts and Graphs for jQuery
  207. Webmaster Tips: CSS, HTML, SEO, Adsense, PHP articles and webmaster tools
  208. Webmaster Tips: Site Information Tool - Whois, Google PR, Alexa rank, IP info
  209. Bookmarklet Crunchinator - quickly create a bookmarklet from some javascript code
  210. Created with Free Software - FSFE
  211. Button Maker :: Kalsey Consulting Group
  212. Enhanced button maker - eKstreme.com
  213. //gtmcknight.com: Steal These Buttons
  214. MySpace Warning Labels - MyWackoSpace.com - generate label gifs, doesn't need myspace
  215. Myspace MP3 - Myspace Codes - Myspace Layouts - MyspaceGeeks.com - flash mp3 player, doesn't need myspace
  216. Icon Archive - 26,300+ free icons, buddy icons, xp icons, vista icons, desktop icons, aim icons
  217. Royalty Free Icons & Clipart Stock Images ~ Icons Etc.
  218. Free Clipart | Download Free Clipart
  219. FlamingText: Logo Design and Button Generator Tool
  220. Cool Text: Logo and Graphics Generator
  221. iBAND Free Clip Art - Collection of Photos and Images
  222. Free Backgrounds
  223. Traffic-Guards, eine Aktion gegen Traffic-Klau bzw Bandwidth Stealing
  224. Smilies Smilie Smilys Smiley Smileys Emoticons Gifs
  225. Emoji cheat sheet for Campfire and GitHub
  226. Code to HTML converter - code2html
  227. PGP signed web-pages
  228. PGP Signing A Web Page - Part III
  229. TextCaptcha: textual CAPTCHA challenges - for example like this
  230. Forschungsstelle Abmahnwelle e.V. Gazette
  231. semacode | real-world hyperlinks
  232. Jeff Mesnil's Weblog: A bookmarklet to split HTML document within the browser
  233. MediaGoblin
  234. Piwigo is open source photo gallery software for the web | piwigo.org
  235. Menalto2Piwigo extension - Import data from a Menalto Gallery into Piwigo
  236. Fail2ban configuration for Piwigo failed logins « freeandthings
  237. Migrating from Gallery3 to Piwigo – PCR's notepad
  238. Extensions - Import data from a Menalto Gallery into Piwigo; Piwigo extension
  239. Gallery | Your photos on your website - discontinued Menalto Gallery project
  240. Gallery Codex - Menalto Gallery manual
  241. Gallery 3 User Contributed Modules and Themes
  242. Gallery2 Themes Demo Site - Showcase of Themes, Colorpacks and Frames for Gallery2
  243. Latest Gallery Sites | G2-Sites.com - Gallery Directory
  244. Unclassified NewsBoard Forum - UNB, you don't have to use phpBB
  245. ForumMatrix - Compare Them All
  246. Home - AkeebaBackup.com
  247. Joomla! The CMS Trusted By Millions for their Websites
  248. Joomla! Extensions Directory
  249. Internetrecht
  250. Bettinger Schneider Schramm | Patentanwälte Rechtsanwälte | München - Datenbank über Entwicklungen im Bereich des Patentrechts, des Markenrechts und Domainrechts sowie des Rechts der Informationstechnologie
  251. Jugendschutz-Label Altersklassifizierung age-de.xml
  252. Impressum Anbieterkennzeichnungspflicht TMG § 5 Internetrecht
  253. Die Impressumspflicht nach § 5 TMG / § 55 RStV
  254. Impressumspflicht für Webseiten
  255. Muster-Datenschutzerklärung für Websites 2017 | Law-Blog
  256. Der eRecht24 Impressum Generator: Das Original!
  257. 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.
  258. GDPR - A Practical Guide For Developers - Bozho's tech blog - European data protection regulation
  259. Datenschutzerklärung kostenlos erstellen: Generator und Mustertexte
  260. Datenschutz-Muster Generator für Webseiten, Blogs und Social Media - Datenschutz-Generator.deDatenschutz-Generator.de
  261. FAQ IP-Adressen und andere Nutzungsdaten
  262. Anonymisierung der IP-Adressen in Webserver-Logfiles
  263. Verwendung von Cookies nach Datenschutzgrundverordnung nur noch bei vorheriger ausdrücklicher Einwilligung des Nutzers?
  264. Verwendung von Cookies nur noch bei ausdrücklicher Einwilligung der Nutzer?
  265. Prevent images on your page from appearing in search results - Search Console Help (google)
  266. Remove URLs Tool - Search Console Help (google)
  267. Down For Everyone Or Just Me -> Check if your website is down or up?
  268. GitHub - firehol/netdata: Get control of your servers. Simple. Effective. Awesome. https://my-netdata.io/

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