SPF

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.

Google Apps for Business

Google Apps for Business Usage Statistics · Download List of All Websites using Google Apps for Business

Web-based email, calendar, and documents for teams. Renamed to Google Apps for Work, but now known as G Suite from Google Cloud.

Business Email Hosting

DMARC

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

SSL by Default

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

LetsEncrypt Usage Statistics · Download List of All Websites using LetsEncrypt

Let’s Encrypt is a free open Certificate Authority.

Root Authority

Amazon

Amazon Usage Statistics · Download List of All Websites using Amazon

This site is hosted on Amazon AWS EC2 Infrastructure.

Cloud Hosting · Cloud PaaS

AWS Global Accelerator

AWS Global Accelerator Usage Statistics · Download List of All Websites using AWS Global Accelerator

Networking service that sends traffic through Amazon Web Service’s global network infrastructure for performance improvements.

Cloud Hosting

GoDaddy DNS

GoDaddy DNS Usage Statistics · Download List of All Websites using GoDaddy DNS

DNS services provided by GoDaddy.

nginx

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

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.