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.

Standard

Web Hosting Providers
SSL Certificates

Comodo Essential SSL WildCardComodo Essential SSL WildCard

Comodo Essential SSL WildCard Usage Statistics · Download List of All Websites using Comodo Essential SSL WildCard

128-bit SSL certificates designed for encrypting web sites that handle low-volume online transactions.

Wildcard