German Usage Statistics · Download List of All Websites using German
Website content is written in German. Based on HTML langauge attributes on the website
PHP Usage Statistics · Download List of All Websites using PHP
PHP is a widely used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Viewport Meta Usage Statistics · Download List of All Websites using Viewport Meta
This page uses the viewport meta tag which means the content may be optimized for mobile content.
jQuery Usage Statistics · Download List of All Websites using jQuery
JQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.
JavaScript Library
LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt
Let’s Encrypt is a free open Certificate Authority.
Root Authority
Microsoft Azure DNS Usage Statistics · Download List of All Websites using Microsoft Azure DNS
This domain is verified with Microsoft Azure.
Amazon Route 53 Usage Statistics · Download List of All Websites using Amazon Route 53
Amazon's scalable DNS web service system.
Enterprise DNS
Apache Usage Statistics · Download List of All Websites using Apache
Apache has been the most popular web server on the Internet since April 1996.
nginx Usage Statistics · Download List of All Websites using nginx
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Google Webmaster Usage Statistics · Download List of All Websites using Google Webmaster
Webmaster tools provide you with a free and easy way to make your site more Google-friendly.
Last technology detected on 19th August 2025. We know of 10 technologies on this page and 68 technologies removed from optimal-systems.org since 28th February 2013. Link to this page.
Add BuiltWith to for free! Get lookups easily and quickly.
Get a notification when optimal-systems.org adds new technologies.
Get optimal-systems.org profile as an XML, JSON, CSV or XLSX via the Domain API.
Can't find the technology you are looking for? Send us a suggestion, we will try and add it to our database.