⚠️ Caution: This is an early demo of our test updates for NCSC's 2025 TLS guidelines, to allow you to test against the new guidelines.

Some explanation text is still missing, out of date, or in rough draft state. Test evaluations may still change.
This URL is an active development environment and has limited availability - it may be down for hours or days.

Tests from this instance originate from different IPs than those used in production. If you use allowlisting on our production IPs, results may vary, particularly for email TLS. To include this instance, allowlist 62.204.66.0/26 and 2a00:d00:ff:162::/64.

Invitation Masterclass DMARC

On Tuesday April 21st the Platform Internetstandards organises a Masterclass on the topic of DMARC.

During this masterclass one of the founders of DMARC, Tim Draegen, will inform you on the going ons of this security standard.

Masterclass DMARC
Date: Tuesday April 21
Time: 15:00 until 17:00 (drinks afterwards)
Location: 7AM, Buitenhof 47, The Hague

Joining

Free of charge, however the number of participants is limited. You can sign up using the website of ECP.