Frameworks

PHPPHP

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.

JavaScript Libraries and Functions

VKVK

VK Usage Statistics · Download List of All Websites using VK

VK is an all-purpose tool for finding friends, considered a Russian version of Facebook.

Advertising

Ads.txtAds.txt

Ads.txt Usage Statistics · Download List of All Websites using Ads.txt

A public record of Authorized Digital Sellers for a website.

ads txt

Less than 5 Ads.txtLess than 5 Ads.txt

Less than 5 Ads.txt Usage Statistics · Download List of All Websites using Less than 5 Ads.txt

The site has an Ads.txt record and it has less than 5 DIRECT and/or RESELLER entries listed in it.

Email Hosting Providers

SPFSPF

SPF Usage Statistics · Download List of All Websites using SPF

The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

Web Servers

nginxnginx

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.

ApacheApache

Apache Usage Statistics · Download List of All Websites using Apache

Apache has been the most popular web server on the Internet since April 1996.

Operating Systems and Servers

CentOSCentOS

CentOS Usage Statistics · Download List of All Websites using CentOS

CentOS is an Enterprise-class Linux Distribution derived from sources freely provided to the public by a prominent North American Enterprise Linux vendor. CentOS conforms fully with the upstream vendors redistribution policy and aims to be 100% binary compatible.

OpenSSLOpenSSL

OpenSSL Usage Statistics · Download List of All Websites using OpenSSL

The OpenSSL Project is a collaborative effort to develop a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library.