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

    Server Bits

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

    Free Web Space & Image Hosting

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

    Hoster

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

    CMS, Builder

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

    misc

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

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