Open Data/ Scores/ 12/16

B Score 12/16

1 domain with this score.

DomainSecurity ChecksChecked
issuu.com
AWeb Security7/8
Web Security
✓ SSL/TLS
✓ HTTPS
✓ HSTS
✓ Cert
✗ CAA
✓ X-Frame
✓ X-Content
✓ sec.txt
B-Email Security3/5
Email Security
✓ SPF
✓ DKIM
✓ DMARC
✗ MTA-STS
✗ TLS-RPT
B-DNS & Infrastructure2/3
DNS & Infrastructure
✓ DNSSEC
✗ IPv6
✓ RPKI
 Apr 11, 2026