Nettlesere:

• Microsoft Internet Explorer 5.01+
• Mozilla Firefox 1.0+
• Mozilla 0.6 +
• Google Chrome
• Konqueror (KDE)
• Netscape 4.77 +
• Opera 6.1+
• Apple Safari 1.2+
• Camino 1.0+
• AOL 5+

Serverplattformer

• Apache
• BEA Weblogic
• C2Net høyborg
• cPanel / Web Host Manager
• Ensim Kontrollpanel
• Hsfære
• IBM HTTP-server
• iPlanet Server / Sun One
• Java Web Server (Javasoft / Sun)
• lotus domino
• Microsoft IIS
• Microsoft ISA
• Microsoft Live kommunikasjonsserver
• Microsoft SQL Server 2005
• Netscape Enterprise Server
• Novell ConsoleOne + Novel Webserver
• OpenLDAP
• Oracle HTTP-server
• Plesk
• Tomcat
• webmin
• WebSTAR
• Zeus webserver
• Alle andre SSL-kompatible serverplattformer

Søknad suiter:

• Microsoft Authenticode
• Visual Basic for Applications (VBA)
• Adobe AIR
• Sun Java SE 1.4.2+
• Mozilla Suite 1.0+
• Sjøape

Mobile enheter / PDAer / Mikro nettlesere / spillkonsoller

• Android 1.5+
• iOS 1.0+
• Windows Phone 7+
• Microsoft Windows Mobile 5/6
• Blackberry 4.3.0+
• Microsoft Windows CE 4.0
• Microsoft IE Pocket PC 2003
• Microsoft IE Smartphone 2003
• Palm OS 5.0+
• Netfront nettleser 3.0+
• KDDI Openwave 6.2.0.12 +
• Brygge
• Opera Mini 3.0+
• Opera Mobile 6.0+
• NTT / DoCoMo
• Sony Playstation bærbar
• Sony playstation 3
• Nintendo Wii

Utvidede valideringslesere:

• Microsoft Internet Explorer 7 + (Vista)
• Microsoft Internet Explorer 7+ (Windows XP)
• Opera 9.5+
• Firefox 3+
• Apple Safari 3.2+
• Google Chrome 1+

E-postklienter (S/MIME):

• Microsoft Outlook 99+
• Microsoft Outlook 2000
• Microsoft Outlook 2003
• Microsoft Outlook 2007
• Microsoft Outlook XP
• Microsoft Outlook Express 5+
• Microsoft Entourage (OS / X)
• Mozilla Thunderbird 1.0+
• Qualcomm Eudora 6.2+
• Lotus Notes (6+)
• Mail.app (Mac OS X)
• Microsoft / Windows Mail 1.0 + (Vista)
• Flaggermusen 1 +

Dokumentsikkerhetsplattformer:

• Microsoft Office (Word, Excel, Powerpoint, Access, InfoPath)
• Åpne Office Suite