xing.com

Checked 22 October 2026, 11:35 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · InterNetX GmbH · expires 2027-08-24

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
InterNetX GmbH
Registered
25 August 1992
Last changed
8 October 2026
Expires
24 August 2027
Status
client transfer prohibited
Registry nameservers
ns-1321.awsdns-37.org, ns-1690.awsdns-19.co.uk, ns-291.awsdns-36.com, ns-633.awsdns-15.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 2027-08-24 #3
    The registration is valid until 2027-08-24 (305 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-1321.awsdns-37.org, ns-1690.awsdns-19.co.uk, ns-291.awsdns-36.com, ns-633.awsdns-15.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1321.awsdns-37.org, ns-1690.awsdns-19.co.uk, ns-291.awsdns-36.com, ns-633.awsdns-15.net
NS in the zone
ns-1321.awsdns-37.org, ns-1690.awsdns-19.co.uk, ns-291.awsdns-36.com, ns-633.awsdns-15.net
NameserverAddressesNetwork (AS)Glue
ns-1321.awsdns-37.org205.251.197.41 2600:9000:5305:2900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1690.awsdns-19.co.uk205.251.198.154 2600:9000:5306:9a00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-291.awsdns-36.com205.251.193.35 2600:9000:5301:2300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.35 2600:9000:5301:2300::1
ns-633.awsdns-15.net205.251.194.121 2600:9000:5302:7900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1321.awsdns-37.org, ns-1690.awsdns-19.co.uk, ns-291.awsdns-36.com, ns-633.awsdns-15.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-1321.awsdns-37.org 205.251.197.41NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1321.awsdns-37.org 2600:9000:5305:2900::1NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns-1690.awsdns-19.co.uk 205.251.198.154NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1690.awsdns-19.co.uk 2600:9000:5306:9a00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-291.awsdns-36.com 205.251.193.35NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-291.awsdns-36.com 2600:9000:5301:2300::1NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns-633.awsdns-15.net 205.251.194.121NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-633.awsdns-15.net 2600:9000:5302:7900::1NOERROR, 5 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-1690.awsdns-19.co.uk

Found

Primary (MNAME)
ns-1690.awsdns-19.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-1321.awsdns-37.org (205.251.197.41)1
ns-1321.awsdns-37.org (2600:9000:5305:2900::1)1
ns-1690.awsdns-19.co.uk (205.251.198.154)1
ns-1690.awsdns-19.co.uk (2600:9000:5306:9a00::1)1
ns-291.awsdns-36.com (205.251.193.35)1
ns-291.awsdns-36.com (2600:9000:5301:2300::1)1
ns-633.awsdns-15.net (205.251.194.121)1
ns-633.awsdns-15.net (2600:9000:5302:7900::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-1690.awsdns-19.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

38 records at the apex

Found

Read from
205.251.197.41:53
TypeValueTTL
SOAns-1690.awsdns-19.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1321.awsdns-37.org.172800
NSns-1690.awsdns-19.co.uk.172800
NSns-291.awsdns-36.com.172800
NSns-633.awsdns-15.net.172800
A18.66.122.2860
A18.66.122.1860
A18.66.122.9760
A18.66.122.12160
MX10 xing-com.mail.protection.outlook.com.86400
TXT"MS=ms45637936"300
TXT"MS=ms63761438"300
TXT"Ml9vw8Cm/Ig/xpmhhDfS9TEjuzw="300
TXT"TTmNrvKCKyVmW6wxgBUHPZ3Tv4VvPaUslML0MaJAYdnySEHpD7OX4QTOPBLdgFlKfIL59yXY3x6lm8iIyqWwhw=="300
TXT"ZOOM_verify_av-wjAz-T62Xdl1pMRBySA"300
TXT"_oqnb58q3pbnwofdf7gr0jeab8ik8xs6"300
TXT"apple-domain-verification=s4efFoD3ULh06gGS"300
TXT"astro-domain-verification=clyhbm3ib0dq801kip93vxw0t"300
TXT"atlassian-domain-verification=jQie6vPSfhfQ4wsCwYZtuCQTWC7PhDbv9HmrAzbRc6skBWWB/TfL8TpiAqozsb8N"300
TXT"docker-verification=7d460483-f122-4277-b449-0a3a3fe26190"300
TXT"docusign=73ffe7e4-a802-458a-bad3-3afefc637792"300
TXT"facebook-domain-verification=xxd0q3s7lv62wywvvpver0e8j1j1vw"300
TXT"figma-domain-verification=021dc2f32684e858eaf9842b7206f9197bbdffa76c83ac711b16ba9702aeca5c-1782465718"300
TXT"google-site-verification=1CoJURTg2aHLa8bvDoNt_dDrLNmVPE93-cjaxYitSo8"300
TXT"google-site-verification=Flhe3fswMbbqS2VGEy2ODM-1P_PE_Z5l2u5zZZq5UR4"300
TXT"google-site-verification=Qb3_TK55U83JNTsumhQ_7culHoFKMU2dcpvVvfl5h-k"300
TXT"google-site-verification=UORS-nc4KF2CsNXjoZmD3hLN9gvo3xdmmRXP2UE0N2Y"300
TXT"google-site-verification=UqxFvQ_ikK9hga0Qm1unOA9HbMWTTlJ_TTVxRTu9z04"300
TXT"google-site-verification=jC5_MqgVlYS7He0-uldAaB4z1uYxuZUKL_bTHaIYn-0"300
TXT"google-site-verification=whYQbqxkVsb_xI5XKG3U8CQG2Vn75Nhx5HyTxo30gHA"300
TXT"miro-verification=3969bd74d34f4d6e10fb42f5233014d2d3dd4f9c"300
TXT"mongodb-site-verification=P5bGlH3I0KYBkV7Lk3ZQPkLsXxb3QN4R"300
TXT"openai-domain-verification=dv-JfWX8IbG0n87GNHoDQvLlbeM"300
TXT"paloaltonetworks-site-verification=93e36781f48dc570d80205f59263b53045f9a982b7fcc747a23849d162298d7f"300
TXT"segment-site-verification=3fA98vkzGDmgoJbj3AG2CJvr8Z9mSQpx"300
TXT"teamviewer-sso-verification=54188f7fff354a9b92f7652fd3937fb0"300
TXT"v=spf1 mx include:_netblocks.mail.xing.com include:_spf.zimpel.de include:_spf.salesforce.com include:_spf.abiliware.de ?include:servers.mcsv.net include:spf.protection.outlook.com include:mail.zendesk.com ~all"300
TXT"zoom-domain-verification=5adddeb4-2a0b-4bf0-8eaf-82bc5e2c49d8"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.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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