swapcard.com

Checked 22 October 2026, 10:53 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 2 info

Registration

info

.com generic · Amazon Registrar, Inc. · expires 2027-03-06

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Amazon Registrar, Inc.
Registered
6 March 1999
Last changed
15 May 2026
Expires
6 March 2027
Status
client transfer prohibited
Registry nameservers
ns-1401.awsdns-47.org, ns-1662.awsdns-15.co.uk, ns-451.awsdns-56.com, ns-873.awsdns-45.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 2027-03-06 #3
    The registration is valid until 2027-03-06 (134 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns-1401.awsdns-47.org, ns-1662.awsdns-15.co.uk, ns-451.awsdns-56.com, ns-873.awsdns-45.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1401.awsdns-47.org, ns-1662.awsdns-15.co.uk, ns-451.awsdns-56.com, ns-873.awsdns-45.net
NS in the zone
ns-1401.awsdns-47.org, ns-1662.awsdns-15.co.uk, ns-451.awsdns-56.com, ns-873.awsdns-45.net
NameserverAddressesNetwork (AS)Glue
ns-1401.awsdns-47.org205.251.197.121 2600:9000:5305:7900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1662.awsdns-15.co.uk205.251.198.126 2600:9000:5306:7e00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-451.awsdns-56.com205.251.193.195 2600:9000:5301:c300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.195 2600:9000:5301:c300::1
ns-873.awsdns-45.net205.251.195.105 2600:9000:5303:6900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1401.awsdns-47.org, ns-1662.awsdns-15.co.uk, ns-451.awsdns-56.com, ns-873.awsdns-45.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-1401.awsdns-47.org 205.251.197.121NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1401.awsdns-47.org 2600:9000:5305:7900::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1662.awsdns-15.co.uk 205.251.198.126NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1662.awsdns-15.co.uk 2600:9000:5306:7e00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-451.awsdns-56.com 205.251.193.195NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-451.awsdns-56.com 2600:9000:5301:c300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-873.awsdns-45.net 205.251.195.105NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-873.awsdns-45.net 2600:9000:5303:6900::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-451.awsdns-56.com

Found

Primary (MNAME)
ns-451.awsdns-56.com
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-1401.awsdns-47.org (205.251.197.121)1
ns-1401.awsdns-47.org (2600:9000:5305:7900::1)1
ns-1662.awsdns-15.co.uk (205.251.198.126)1
ns-1662.awsdns-15.co.uk (2600:9000:5306:7e00::1)1
ns-451.awsdns-56.com (205.251.193.195)1
ns-451.awsdns-56.com (2600:9000:5301:c300::1)1
ns-873.awsdns-45.net (205.251.195.105)1
ns-873.awsdns-45.net (2600:9000:5303:6900::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-451.awsdns-56.com 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

42 records at the apex

Found

Read from
205.251.197.121:53
TypeValueTTL
SOAns-451.awsdns-56.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1401.awsdns-47.org.172800
NSns-1662.awsdns-15.co.uk.172800
NSns-451.awsdns-56.com.172800
NSns-873.awsdns-45.net.172800
A151.101.130.13260
A151.101.194.13260
A151.101.66.13260
A151.101.2.13260
MX1 aspmx.l.google.com.0
MX10 alt3.aspmx.l.google.com.0
MX10 alt4.aspmx.l.google.com.0
MX5 alt1.aspmx.l.google.com.0
MX5 alt2.aspmx.l.google.com.0
TXT"00079443"3600
TXT"MS=ms58302707"3600
TXT"Notion_verify_B3LNazp9600KKp8C0qyGcs5r1Nu9J0bN5kCnUmG3u2L25D2Cfob85b2yY9H9x6ia3FsGK"3600
TXT"anthropic-domain-verification-0p3v1v=37WQ43Bp3PAzLfmNy58KLaZYv"3600
TXT"apple-domain-verification=NPt1kWoyu0UOLGfb"3600
TXT"arsen-verification=3077fd53d1cfb65106e241a1866f6eb32017b36b411206ddbedfc5f75c80b84f"3600
TXT"google-site-verification=OH6MYbq0ygT8r9NNA9FSUZaBdQU57nSllEZsGF0GN6U"3600
TXT"google-site-verification=UgRqZm17lcArzP7VdzC_cOgCpBq076s9_1lC9gUz67I"3600
TXT"google-site-verification=ZUJzKYonR5hIecGW0Ggc3RxOyaRM03Wj_M0KKSfMo_E"3600
TXT"google-site-verification=aKfkhZAWDPdfZfP7pqcUP_oiqxDegrd7eZwisDtOwPU"3600
TXT"google-site-verification=aXOOu6OBXrrOQwlvi_OtyKMo2a51IdnNV7dFys5hG6Q"3600
TXT"google-site-verification=q07DourF1g8XxC_V0cjQse6yjBDmPyxGnUXUde8FjHY"3600
TXT"jbzzeuSe=d316ace781e0e7e4631982f713dad66a"3600
TXT"mgverify=ccfce231a249f7cde08740d4c661b6dcaa907d7d1bf00371b97113d792c3381c"3600
TXT"mixpanel-domain-verify=6bb98c76-5241-4140-a87e-7e17dffe3276"3600
TXT"mongodb-site-verification=bJZ9HJtfKE6CBV2acAwEeervtmqinapS"3600
TXT"onetrust-domain-verification=f24e670982934bd39e0bd1fa59dd5d4e"3600
TXT"proxy-ssl.webflow.com"3600
TXT"v=spf1 include:_spf.google.com include:spf.mandrillapp.com include:_spf1.swapcard.com include:mail.zendesk.com include:3004554.spf03.hubspotemail.net include:app.outreach.io -all"3600
CAA0 iodef "mailto:security@swapcard.com"300
CAA0 issue "amazonaws.com"300
CAA0 issue "certainly.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog"300
CAA0 issuewild "amazonaws.com"300
CAA0 issuewild "digicert.com"300
CAA0 issuewild "letsencrypt.org"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), MX (0s). 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: amazonaws.com, certainly.com, letsencrypt.org, pki.goog, digicert.com.