qnx.com

Checked 22 October 2026, 10:23 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-08-04

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
5 August 1992
Last changed
3 July 2026
Expires
4 August 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1190.awsdns-20.org, ns-145.awsdns-18.com, ns-1633.awsdns-12.co.uk, ns-853.awsdns-42.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 2027-08-04 #3
    The registration is valid until 2027-08-04 (285 days).
  • ✓ Transfer locked #4
    Registry status: client delete 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-1190.awsdns-20.org, ns-145.awsdns-18.com, ns-1633.awsdns-12.co.uk, ns-853.awsdns-42.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1190.awsdns-20.org, ns-145.awsdns-18.com, ns-1633.awsdns-12.co.uk, ns-853.awsdns-42.net
NS in the zone
ns-1190.awsdns-20.org, ns-145.awsdns-18.com, ns-1633.awsdns-12.co.uk, ns-853.awsdns-42.net
NameserverAddressesNetwork (AS)Glue
ns-1190.awsdns-20.org205.251.196.166 2600:9000:5304:a600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-145.awsdns-18.com205.251.192.145 2600:9000:5300:9100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.145 2600:9000:5300:9100::1
ns-1633.awsdns-12.co.uk205.251.198.97 2600:9000:5306:6100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-853.awsdns-42.net205.251.195.85 2600:9000:5303:5500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1190.awsdns-20.org, ns-145.awsdns-18.com, ns-1633.awsdns-12.co.uk, ns-853.awsdns-42.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-1190.awsdns-20.org 205.251.196.166NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1190.awsdns-20.org 2600:9000:5304:a600::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-145.awsdns-18.com 205.251.192.145NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-145.awsdns-18.com 2600:9000:5300:9100::1NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-1633.awsdns-12.co.uk 205.251.198.97NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1633.awsdns-12.co.uk 2600:9000:5306:6100::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-853.awsdns-42.net 205.251.195.85NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-853.awsdns-42.net 2600:9000:5303:5500::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-1190.awsdns-20.org

Found

Primary (MNAME)
ns-1190.awsdns-20.org
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-1190.awsdns-20.org (205.251.196.166)1
ns-1190.awsdns-20.org (2600:9000:5304:a600::1)1
ns-145.awsdns-18.com (205.251.192.145)1
ns-145.awsdns-18.com (2600:9000:5300:9100::1)1
ns-1633.awsdns-12.co.uk (205.251.198.97)1
ns-1633.awsdns-12.co.uk (2600:9000:5306:6100::1)1
ns-853.awsdns-42.net (205.251.195.85)1
ns-853.awsdns-42.net (2600:9000:5303:5500::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-1190.awsdns-20.org 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

info

26 records at the apex

Found

Read from
205.251.196.166:53
TypeValueTTL
SOAns-1190.awsdns-20.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1190.awsdns-20.org.43200
NSns-145.awsdns-18.com.43200
NSns-1633.awsdns-12.co.uk.43200
NSns-853.awsdns-42.net.43200
A209.226.137.533600
MX10 mxa-00224f01.gslb.pphosted.com.600
MX10 mxb-00224f01.gslb.pphosted.com.600
TXT"00DAu00000FOSIf=1TBAu0000000D0T"600
TXT"00Dau000002Y5H3=1TBOL00000001wz;00DAw00000CQb53=1TBAw00000006gX"600
TXT"00Dau000002Y5H3=1TBOL00000001wz;00DAw00000CQb53=1TBAw00000006gX;00DAu00000GnqsH=1TBAu0000000ID3"600
TXT"adobe-idp-site-verification=34136a565b81f6a2841b45d90254e52c0e4c342a9552ee36bc78eae1b5701f53"600
TXT"anthropic-domain-verification-trvapa=fXZdz7rbYkVNcIuxY4PozX01V"600
TXT"atlassian-domain-verification=TjgLWbaDugtWE3eKuI94j7IJvsIa6e7I2L5gZl7k1hOdOT7WTfvMgqwCdpuOIALc"600
TXT"cisco-ci-domain-verification=15ea42af1807f1fab1f4f3b5f21932fc120a4c9fb7e92b17d1fe192eb7085026"600
TXT"cursor-domain-verification-fac4zy=QQ4gIpdvSUsHONSXNpzcvzKzr"600
TXT"docker-verification=07950716-88c8-42ef-8e80-972943109af5"600
TXT"docusign=fa8763c0-8a33-4a9d-a9ee-bb7f8f4fbf84"600
TXT"figma-domain-verification=b8716d8b2fe55906c234b7b1804c09a857791308d1bd25a246aea263ebcdba26-1776443177"600
TXT"google-site-verification=zyV6nKEl5xOSLDeT03_btHIvuKgDZhlnIe8JDpxuqy4"600
TXT"pardot1090442=7735d6ad85959cf9569c194d54842bb3cd82b0d6c17bc6f78de9858885738ab8"600
TXT"pardot191232=606a780821e937f79732c869373573a9228eed82fd43bd40a5427a7c96377316"600
TXT"sending_domain1090442=be63ed6b3ab9c20b6f2339ba0a9708204e39354b7a834f25145bf57d294f5fe2"600
TXT"sending_domain191232=1c5089b54318ab76a1db6217da8651187bd3200db5f85af9d48c5c4f2ddc79d2"600
TXT"smartsheet-site-validation=iXq9wRlfyJsGbOKxpdZP1wJG-nl325hC"600
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:aspmx.pardot.com include:mailgun.org -all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 10m, NS 12h. The NS TTL at the parent is 2d and in the zone 12h; resolvers may use either.
  • ✓ 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