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

Gandi

Gandi Usage Statistics · Download List of All Websites using Gandi

Gandi provides cloud services and is based in France.

Cloud Hosting · French hosting

French Server Location

French Server Location Usage Statistics · Download List of All Websites using French Server Location

The web server is located in France.

Server Location

gandi.net DNS

gandi.net DNS Usage Statistics · Download List of All Websites using gandi.net DNS

DNS services provided by gandi.net.

DNSSEC

DNSSEC Usage Statistics · Download List of All Websites using DNSSEC

DNSSEC strengthens DNS authentication by using digital signatures based on public key cryptography.

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.