SurfaceMap › i › issuu.com

issuu.com

Checked 2026-10-22 09:22 UTC · first added 2026-10-21
!Passed with warnings Score 91 of 100

Domain & DNS

ok

30 passed 0 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA iDNSSEC iRecords

Recent checks

✓

Full report

Domain & DNS report for issuu.com ›

Mail

warn

27 passed 3 warn 0 failed

Areas

✓SPF ✓DMARC !DKIM !DNSSEC ✓MX !TLS iBIMI

Problems

  • !
    Signatures expire in 9h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-22T18:00:00Z (in 9h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: google (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32

Recent checks

!

Full report

Mail report for issuu.com ›