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Site Info - Achromat.orgOverview of web technologies used by Achromat.org. Website Background indexA network for individuals and families affected by the vision disorder achromatopsia (sometimes called achromatopia), including rod monochromacy and blue cone monochromacy. Description on Homepage not ranked Popularity rank SiteSpinner is a Windows-based website builder by Virtual Mechanics. SiteSpinner Static websites don't use any server-side programming language for generating web pages, but deliver fixed content which is created manually or with an offline tool. static files JavaScript is a lightweight, object-oriented, cross-platform scripting language, often used within web pages. Cloudflare Server is a web server developed by Cloudflare. The LiteSpeed Web Server is a lightweight web server by LiteSpeed Technologies. Unix is a range of operating systems originally developed at Bell Labs. This includes Unix and Unix-like systems, such as Linux. Cloudflare provides a content delivery network. Cloudflare Cloudflare provides DNS servers and other web services. Let’s Encrypt is a free, automated, and open certificate authority provided by the Internet Security Research Group. StatCounter is a free hit counter and real-time web tracker. Zstandard is a lossless data compression algorithm developed by Yann Collet at Facebook. Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page. The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address. HTTP/2 is the second major version of the HTTP network protocol. HTTP/3 is the third major version of the HTTP network protocol, derived from the QUIC protocol. The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com. The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/. Transitional version of HTML. HTML Transitional 4.01 UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII. PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF. JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images. Organizations
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