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vivaldi.com

Checked 2026-10-22 11:22 UTC · first added 2026-10-21
!Passed with warnings Score 85 of 100

Domain & DNS

warn

29 passed 1 warn 0 failed

Areas

iRegistration iDelegation !Nameservers ✓SOA iDNSSEC ✓Records

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: carl.ns.cloudflare.com: "2026.10.2"; sue.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17

Recent checks

!

Full report

Domain & DNS report for vivaldi.com ›

Mail

warn

30 passed 4 warn 0 failed

Areas

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

Problems

  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mail.vivaldi.com
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Key in test mode
    DKIM · These keys have t=y, so receivers treat DKIM failures as a test: mail. Remove t=y once DKIM works.
    #24

Recent checks

!

Full report

Mail report for vivaldi.com ›