mint.com

20 of 20 addresses answer authoritatively

Found

Checks

• ✓ All respond #14

  All 20 nameserver addresses answered.
• ✓ All authoritative #15

  Every responding nameserver answers authoritatively for the zone.
• ✓ No recursion #16

  The nameservers do not answer recursive queries for other domains.
• !

  Software version disclosed

  These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-182.akam.net: "41824.4"; a1-182.akam.net: "41824.11"; a11-64.akam.net: "41824.11"; a11-64.akam.net: "41824.5"; a18-64.akam.net: "48878.26"; a18-64.akam.net: "48878.30"; a24-67.akam.net: "48878.29"; a24-67.akam.net: "48878.30"; a6-66.akam.net: "48878.31"; a6-66.akam.net: "48878.30"; a7-66.akam.net: "41824.6"; a7-66.akam.net: "41824.10". Hide or replace the version string.

  #17
• ✓ Zone transfers refused #18

  No nameserver allows a zone transfer to the public.
• ✓ TCP supported #19

  All nameservers answer over TCP.
• ✓ EDNS supported #20

  All nameservers support EDNS(0).
• ✓ Public addresses #21

  All nameserver addresses are publicly routable.

serial 2021100786 · primary a1-182.akam.net

Found

Primary (MNAME)

a1-182.akam.net

Contact (RNAME)

nadmin.intuit.com

Serial

2021100786

Refresh / retry

28800 s / 7200 s

Expire

604800 s

Negative TTL

300 s

Serial per nameserver

Checks

• !

  Serials differ

  The nameservers serve different versions of the zone: 1657011890 on dns1.p01.nsone.net (198.51.44.1), dns1.p01.nsone.net (2620:4d:4000:6259:7:1:0:1), dns2.p01.nsone.net (198.51.45.1), dns2.p01.nsone.net (2a00:edc0:6259:7:1::2), dns3.p01.nsone.net (198.51.44.65), dns3.p01.nsone.net (2620:4d:4000:6259:7:1:0:3), dns4.p01.nsone.net (198.51.45.65), dns4.p01.nsone.net (2a00:edc0:6259:7:1::4); 2021100786 on a1-182.akam.net (193.108.91.182), a1-182.akam.net (2600:1401:2::b6), a11-64.akam.net (84.53.139.64), a11-64.akam.net (2600:1480:1::40), a18-64.akam.net (95.101.36.64), a18-64.akam.net (2600:1480:4800::40), a24-67.akam.net (2.16.130.67), a24-67.akam.net (2600:1480:9800::43), a6-66.akam.net (23.211.133.66), a6-66.akam.net (2600:1401:1::42), a7-66.akam.net (23.61.199.66), a7-66.akam.net (2600:1406:32::42). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.

  #22
• ✓ Timers within recommendations #23

  SOA refresh 8h, retry 2h, expire 7d, negative TTL 5m.
• ✓ Primary is a public nameserver #24

  The primary nameserver a1-182.akam.net is one of the listed nameservers.
• ✓ Contact nadmin@intuit.com #25

  The SOA RNAME nadmin.intuit.com means nadmin@intuit.com.
• ✓ Date-based serial #26

  The serial 2021100786 follows the YYYYMMDDnn convention (2021-10-07).

Not signed

Found

Validated by resolver

no

Checks

• !

  Not signed

  The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

  #27

21 records at the apex

Found

Read from

193.108.91.182:53

Checks

• !

  Very low TTLs

  These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 5m; resolvers may use either.

  #32
• ✓ No CNAME at the apex #33

  The zone apex has no CNAME record.
• ✓ No wildcard #34

  Names that don't exist return NXDOMAIN.
• i

  No CAA records

  Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.

  #35