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

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.

LiteSpeedLiteSpeed

LiteSpeed Usage Statistics · Download List of All Websites using LiteSpeed

LiteSpeed web server is a high performance, highly scalable Apache interchangeable web server.

Operating Systems and Servers

QUICQUIC

QUIC Usage Statistics · Download List of All Websites using QUIC

Quick UDP Internet Connections, pronounced quick is a transport layer network protocol developed by Google.