xe.com

Checked 22 October 2026, 11:34 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · SafeNames Ltd. · expires 2027-12-15

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
SafeNames Ltd.
Registered
16 December 1994
Last changed
1 January 2026
Expires
15 December 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-104.awsdns-13.com, ns-1530.awsdns-63.org, ns-1670.awsdns-16.co.uk, ns-836.awsdns-40.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 2027-12-15 #3
    The registration is valid until 2027-12-15 (418 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-104.awsdns-13.com, ns-1530.awsdns-63.org, ns-1670.awsdns-16.co.uk, ns-836.awsdns-40.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-104.awsdns-13.com, ns-1530.awsdns-63.org, ns-1670.awsdns-16.co.uk, ns-836.awsdns-40.net
NS in the zone
ns-104.awsdns-13.com, ns-1530.awsdns-63.org, ns-1670.awsdns-16.co.uk, ns-836.awsdns-40.net
NameserverAddressesNetwork (AS)Glue
ns-104.awsdns-13.com205.251.192.104 2600:9000:5300:6800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.192.104 2600:9000:5300:6800::1
ns-1530.awsdns-63.org205.251.197.250 2600:9000:5305:fa00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1670.awsdns-16.co.uk205.251.198.134 2600:9000:5306:8600::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-836.awsdns-40.net205.251.195.68 2600:9000:5303:4400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-104.awsdns-13.com, ns-1530.awsdns-63.org, ns-1670.awsdns-16.co.uk, ns-836.awsdns-40.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-104.awsdns-13.com 205.251.192.104NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-104.awsdns-13.com 2600:9000:5300:6800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1530.awsdns-63.org 205.251.197.250NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1530.awsdns-63.org 2600:9000:5305:fa00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1670.awsdns-16.co.uk 205.251.198.134NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1670.awsdns-16.co.uk 2600:9000:5306:8600::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-836.awsdns-40.net 205.251.195.68NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-836.awsdns-40.net 2600:9000:5303:4400::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-104.awsdns-13.com

Found

Primary (MNAME)
ns-104.awsdns-13.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-104.awsdns-13.com (205.251.192.104)1
ns-104.awsdns-13.com (2600:9000:5300:6800::1)1
ns-1530.awsdns-63.org (205.251.197.250)1
ns-1530.awsdns-63.org (2600:9000:5305:fa00::1)1
ns-1670.awsdns-16.co.uk (205.251.198.134)1
ns-1670.awsdns-16.co.uk (2600:9000:5306:8600::1)1
ns-836.awsdns-40.net (205.251.195.68)1
ns-836.awsdns-40.net (2600:9000:5303:4400::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-104.awsdns-13.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

34 records at the apex

Found

Read from
205.251.192.104:53
TypeValueTTL
SOAns-104.awsdns-13.com. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 8640060
NSns-104.awsdns-13.com.7200
NSns-1530.awsdns-63.org.7200
NSns-1670.awsdns-16.co.uk.7200
NSns-836.awsdns-40.net.7200
A13.226.244.4460
A13.226.244.10360
A13.226.244.10860
A13.226.244.5660
MX10 mxa-00280f02.gslb.pphosted.com.300
MX10 mxb-00280f02.gslb.pphosted.com.300
TXT"664p0nd6qj87y4kycv8pvj98crp4649r"300
TXT"H0I0F18791"300
TXT"_1jzhwj6hwcvd03jv3qnbfwp6wvb8g0n"300
TXT"_7ev9xkpt0xm5gca4whw1vgb4h8qlasl" "_fnlenofnrpvrsji1dd0kio1c9t3glzi" "google-gws-recovery-domain-verification=63529610" "google-site-verification=IbYWApv7qbX3bcmJCBFo4FcsjtANQq3rG_C8LeL5jAE"300
TXT"_avbfu5oee0gqej6xj6qhmup94io94og"300
TXT"_ix13l8dbq3zpiqtthkih18u8f495nm7"300
TXT"_pc1qmr48d3mu6wkl0gmn6fc3mbvthf3"300
TXT"_w6uuk8u4y3ciqwt3yaqrz3naywexojp"300
TXT"_xhtjg6kgqebe76kc9hg88bu6l3uwt3z"300
TXT"aZZLn6UzM4xcts62yjZiz8n_W1K-MQYQ"300
TXT"anthropic-domain-verification-xd8fwn=hdmwp1RBTcmutaDvpNYQC60Hs"300
TXT"apple-domain-verification=sKIhqa8ooWM6kxl5"300
TXT"atlassian-domain-verification=3kG9fz9W+4BZ-UGTjmkw0yeRHSCfoc3HqJVfUzGDWy/ntylggnGPpa/ph/Hd74NE"300
TXT"atlassian-domain-verification=vvqycs7hd3RpAwsxk4rpiJVlkGVMPydhhGZ85v3vic7FG605WGNOlxIwoEaT10Hm"300
TXT"cisco-ci-domain-verification=74fdb22a36aab8f79ed78ba2b1eb2af58a01bfba8f40863b1ab567c355668af3"300
TXT"google-site-verification=MGGXAEe86eVWgNpyTWHyOqeYLNE6QC2EEoNjrQrSii4"300
TXT"logmein-verification-code=93db79a6-d393-4824-9fd1-29e77c01ba0e"300
TXT"logmein-verification-code=d1352456-4c68-49b4-a7af-442dc02ae883"300
TXT"m6cfhmqclpp9zgqlhyf4hsyjnzklzjch"300
TXT"onetrust-domain-verification=aaa8a2ee8c81498d9b61c3539d1ef62c"300
TXT"openai-domain-verification=dv-VmZEJ6vMqwSE4r6H5IBqvu4P"300
TXT"pardot637751=051074dd50c7cdca6269e9a39a84f332f5bc754b77341de6464613da4395510b"300
TXT"v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:44603794.spf05.hubspotemail.net include:mail.zendesk.com ~all"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. The NS TTL at the parent is 2d and in the zone 2h; 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