Test je e-mail	internet.nl
Test je verbinding	conn.internet.nl
UNCLASSIFIED DISA FSO STIG List	stigviewer.com
IPv6 test	ipv6-test.com
HTTPS SSL Client Test	ssllabs.com
IP6.nl	ip6.nl
IP address visibility	stat.ripe.net
DNSViz	dnsviz.net
Zonemaster	zonemaster.net
Observatory by Mozilla	observatory.mozilla.org
SSLlabs	ssllabs.com
CSP Evaluator	csp-evaluator.withgoogle.com
Analyze your CSP	report-uri.com
DNS leak test	dnsleaktest.com
Browsing Experience Security Check	cloudflare.com
DNSSEC	weberblog.net
DNSSEC	sidn.nl
SPF Check	spf-record.com
DANE	check.sidnlabs.nl