reCAPTCHA Usage Statistics · Download List of All Websites using reCAPTCHA
Anti-bot CAPTCHA widget from Google.
CAPTCHA
reCAPTCHA v2 Usage Statistics · Download List of All Websites using reCAPTCHA v2
v2 of the Google reCAPTCHA system.
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.
IPhone / Mobile Compatible Usage Statistics · Download List of All Websites using IPhone / Mobile Compatible
The website contains code that allows the page to support IPhone / Mobile Content.
Mobile Non Scaleable Content Usage Statistics · Download List of All Websites using Mobile Non Scaleable Content
This content is formatted for mobile devices, it does not allow the content to be scaled.
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
jQuery 3.4.1 Usage Statistics · Download List of All Websites using jQuery 3.4.1
jQuery version 3.4.1
jQuery Placeholder Usage Statistics · Download List of All Websites using jQuery Placeholder
The jQuery placeholder easily allows you to emulate the placeholder attribute on input fields for all browsers.
LinkedIn Usage Statistics · Download List of All Websites using LinkedIn
The website mentions linkedin.com in some form.
Instagram Usage Statistics · Download List of All Websites using Instagram
The website mentions Instagram in some form.
GitHub Usage Statistics · Download List of All Websites using GitHub
The website mentions github.com in some form.
Hetzner Usage Statistics · Download List of All Websites using Hetzner
German based dedicated and virtual hosting running on 100% green energy.
Dedicated Hosting · German hosting
SSL by Default Usage Statistics · Download List of All Websites using SSL by Default
The website redirects traffic to an HTTPS/SSL version by default.
LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt
Let’s Encrypt is a free open Certificate Authority.
Root Authority
GoDaddy DNS Usage Statistics · Download List of All Websites using GoDaddy DNS
DNS services provided by GoDaddy.
DMARC Usage Statistics · Download List of All Websites using DMARC
A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse
DMARC
DMARC Reject Usage Statistics · Download List of All Websites using DMARC Reject
The domain has a DMARC policy of 'Reject'. This policy tells the mail server to reject emails that fail DMARC checks, preventing them from being delivered at all.
GoDaddy Email Usage Statistics · Download List of All Websites using GoDaddy Email
GoDaddy email provides a personalized address but protection against viruses and spam and includes tools like Calendar.
Web Hosting Provider Email
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 10th June 2025. We know of 20 technologies on this page and 4 technologies removed from knutzuidema.de since 2nd October 2018. Link to this page.
Add BuiltWith to for free! Get lookups easily and quickly.
Get a notification when knutzuidema.de adds new technologies.
Get knutzuidema.de 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.