italki.com

Checked 22 October 2026, 09:22 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 2 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2029-03-06

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
6 March 2006
Last changed
12 March 2026
Expires
6 March 2029
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1497.awsdns-59.org, ns-1858.awsdns-40.co.uk, ns-28.awsdns-03.com, ns-886.awsdns-46.net
RDAP server
https://rdap.verisign.com/com/v1/

Checks

  • i
    .com is a generic TLD (gTLD)
    Generic TLD under an ICANN registry agreement: ICANN-accredited registrars, UDRP and RDAP apply.
    #1
  • ✓ TLD delegated and signed #2
    .com is delegated in the root zone and DNSSEC-signed.
  • ✓ Expires on 2029-03-06 #3
    The registration is valid until 2029-03-06 (866 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1497.awsdns-59.org, ns-1858.awsdns-40.co.uk, ns-28.awsdns-03.com, ns-886.awsdns-46.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1497.awsdns-59.org, ns-1858.awsdns-40.co.uk, ns-28.awsdns-03.com, ns-886.awsdns-46.net
NS in the zone
ns-1497.awsdns-59.org, ns-1858.awsdns-40.co.uk, ns-28.awsdns-03.com, ns-886.awsdns-46.net
NameserverAddressesNetwork (AS)Glue
ns-1497.awsdns-59.org205.251.197.217 2600:9000:5305:d900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1858.awsdns-40.co.uk205.251.199.66 2600:9000:5307:4200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-28.awsdns-03.com205.251.192.28 2600:9000:5300:1c00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.28 2600:9000:5300:1c00::1
ns-886.awsdns-46.net205.251.195.118 2600:9000:5303:7600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1497.awsdns-59.org, ns-1858.awsdns-40.co.uk, ns-28.awsdns-03.com, ns-886.awsdns-46.net.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1497.awsdns-59.org 205.251.197.217NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1497.awsdns-59.org 2600:9000:5305:d900::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1858.awsdns-40.co.uk 205.251.199.66NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1858.awsdns-40.co.uk 2600:9000:5307:4200::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-28.awsdns-03.com 205.251.192.28NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-28.awsdns-03.com 2600:9000:5300:1c00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-886.awsdns-46.net 205.251.195.118NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-886.awsdns-46.net 2600:9000:5303:7600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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.

SOA

pass

serial 1 · primary ns-1858.awsdns-40.co.uk

Found

Primary (MNAME)
ns-1858.awsdns-40.co.uk
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-1497.awsdns-59.org (205.251.197.217)1
ns-1497.awsdns-59.org (2600:9000:5305:d900::1)1
ns-1858.awsdns-40.co.uk (205.251.199.66)1
ns-1858.awsdns-40.co.uk (2600:9000:5307:4200::1)1
ns-28.awsdns-03.com (205.251.192.28)1
ns-28.awsdns-03.com (2600:9000:5300:1c00::1)1
ns-886.awsdns-46.net (205.251.195.118)1
ns-886.awsdns-46.net (2600:9000:5303:7600::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-1858.awsdns-40.co.uk is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

DNSSEC

warn

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

Records

warn

36 records at the apex

Found

Read from
205.251.197.217:53
TypeValueTTL
SOAns-1858.awsdns-40.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1497.awsdns-59.org.172800
NSns-1858.awsdns-40.co.uk.172800
NSns-28.awsdns-03.com.172800
NSns-886.awsdns-46.net.172800
A44.232.101.11060
A34.208.219.10660
A44.239.186.3160
MX1 aspmx.l.google.com.86400
MX40 aspmx2.googlemail.com.86400
MX5 alt1.aspmx.l.google.com.86400
MX5 alt2.aspmx.l.google.com.86400
MX50 aspmx3.googlemail.com.86400
MX60 inbound-smtp.us-west-2.amazonaws.com.86400
MX60 us.italki.com.86400
MX70 mail.italki.com.86400
TXT"ca3-48c07908d02c4eb89a95fd63de5acac1"3600
TXT"ca3-aa257102ae4c4e99868d00b5d8c4e6cf"3600
TXT"ca3-dd71352737c54be08ddf1318d29e28fc"3600
TXT"facebook-domain-verification=1vo3wnd1d1bkvsh3lrg1va8vblgjpg"3600
TXT"google-site-verification=AUOAjxZU3cdoFVZW34_V0hnCcxQv8sWpKUgd33Ktguc"3600
TXT"google-site-verification=AnARVnmhqMVSEriKhIpRYAMXwp1PT2vHHcscf9QW6-w"3600
TXT"google-site-verification=G8r2QavmDv_c4Vs-pvIyPvG4ZwRnrF49QzrwpKVoMlc"3600
TXT"google-site-verification=QlBKT17O0wJDvAeY_MRc2cI85KaOLdlKP41kyDP6fyg"3600
TXT"google-site-verification=V0ocqbrCbT0We-WxBUKMj9dd87OIkbUjWrunRpuag1o"3600
TXT"google-site-verification=Yxk2QIeRJ0wlfkQtehOlgoMfACBbA4yia0a9rL7LoZA"3600
TXT"v=spf1 include:_spf.google.com include:mail.zendesk.com include:amazonses.com -all"3600
TXT"yandex-verification: 25724b22f4114839"3600
CAA0 iodef "mailto:developer@italki.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "amazon.com"300
CAA0 issuewild "amazonaws.com"300
CAA0 issuewild "amazontrust.com"300
CAA0 issuewild "awstrust.com"300
CAA0 issuewild "pki.goog"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #32
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: letsencrypt.org, pki.goog, amazon.com, amazonaws.com, amazontrust.com, awstrust.com.