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gmail.com

domain Resolves

DNS by Google Cloud DNS · Nameservers: ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com

Re-run JSON PDF Snapshot Watch this
90 / 100 · Good 5 pass 2 caution 0 fail 1 note Checked 24 seconds ago (cached) · 447 ms

Findings

  • Caution SOA refresh outside the recommended range DNS-SOA-REFRESH

    refresh=900s (recommended 20 min – 12 h)

    Read the fix guide →

  • Caution SOA expire is shorter than a week DNS-SOA-EXPIRE

    expire=1800s

    How to fix: Secondaries stop answering if the primary is unreachable for this long. 1–4 weeks is typical.

    Read the fix guide →

  • Note DNSSEC is not enabled DNSSEC-OFF
    Read the fix guide →
  • Pass Zone transfers are refused to outsiders DNS-AXFR-CLOSED

    4 server(s) tested

  • Pass All nameservers answer authoritatively DNS-AUTHORITATIVE-OK

    ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com

  • Pass Nameservers agree on the zone serial DNS-SERIAL-OK

    1007156695

  • Pass IPv6 address published for the apex DNS-IPV6-OK
  • Pass CAA restricts which authorities may issue certificates DNS-CAA-OK

    pki.goog

Records

All
NS SOA A AAAA www (A) MX TXT CAA

NS 4

NameTypeTTLValue
gmail.com NS 340708 ns4.google.com.
gmail.com NS 340708 ns3.google.com.
gmail.com NS 340708 ns1.google.com.
gmail.com NS 340708 ns2.google.com.

SOA 1

NameTypeTTLValue
gmail.com SOA 60 primary ns1.google.com contact dns-admin.google.com serial 1007156695 refresh/retry/expire/min 900/900/1800/60

A 4

NameTypeTTLValue
gmail.com A 226 192.178.223.17
gmail.com A 226 192.178.223.18
gmail.com A 226 192.178.223.19
gmail.com A 226 192.178.223.83

AAAA 4

NameTypeTTLValue
gmail.com AAAA 300 2a00:1450:4009:c13:0:0:0:53
gmail.com AAAA 300 2a00:1450:4009:c13:0:0:0:11
gmail.com AAAA 300 2a00:1450:4009:c13:0:0:0:12
gmail.com AAAA 300 2a00:1450:4009:c13:0:0:0:13

www (A) 4

NameTypeTTLValue
www.gmail.com A 277 142.250.151.19
www.gmail.com A 277 142.250.151.17
www.gmail.com A 277 142.250.151.83
www.gmail.com A 277 142.250.151.18

MX 5

NameTypeTTLValue
gmail.com MX 494 40 alt4.gmail-smtp-in.l.google.com
gmail.com MX 494 10 alt1.gmail-smtp-in.l.google.com
gmail.com MX 494 5 gmail-smtp-in.l.google.com
gmail.com MX 494 20 alt2.gmail-smtp-in.l.google.com
gmail.com MX 494 30 alt3.gmail-smtp-in.l.google.com

TXT 4

NameTypeTTLValue
gmail.com TXT 300 yahoo-verification-key=+eZwIPSgRxkAUzDtqT8Qhk+j4A1JF6V/wtGoyGTkELY=
gmail.com TXT 300 globalsign-smime-dv=CDYX+XFHUw2wml6/Gb8+59BsH31KzUr6c1l2BPvqKX8=
gmail.com TXT 300 v=spf1 redirect=_spf.google.com
gmail.com TXT 300 yahoo-verification-key=dKYwfVbaxatmcXiXy6LDAxMRirqpOq5tj98iJv9qWVk=

CAA 1

NameTypeTTLValue
gmail.com CAA 86400 0 issue pki.goog

SRV 0

No SRV records (NOERROR).

DNSKEY 0

No DNSKEY records (NOERROR).

DS (parent) 0

No DS (parent) records (NOERROR).

HTTPS 0

No HTTPS records (NOERROR).

Nameserver agreement

ServerAddressAuthoritativeSerialTime
ns1.google.com 216.239.32.10, 2001:4860:4802:32:0:0:0:a yes 1007156695 12 ms
ns2.google.com 216.239.34.10, 2001:4860:4802:34:0:0:0:a yes 1007156695 22 ms
ns3.google.com 216.239.36.10, 2001:4860:4802:36:0:0:0:a yes 1007156695 12 ms
ns4.google.com 216.239.38.10, 2001:4860:4802:38:0:0:0:a yes 1007156695 7 ms

Zone transfer (AXFR)

  • ns1.google.com216.239.32.10refused (NOERROR)
  • ns2.google.com216.239.34.10refused (NOERROR)
  • ns3.google.com216.239.36.10refused (NOERROR)
  • ns4.google.com216.239.38.10refused (NOERROR)