segment.com

Checked 22 October 2026, 10:40 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2028-07-05

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
6 July 1998
Last changed
3 June 2026
Expires
5 July 2028
Status
client delete prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.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 2028-07-05 #3
    The registration is valid until 2028-07-05 (621 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-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.net
NS in the zone
ns-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.net
NameserverAddressesNetwork (AS)Glue
ns-1205.awsdns-22.org205.251.196.181 2600:9000:5304:b500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1681.awsdns-18.co.uk205.251.198.145 2600:9000:5306:9100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-386.awsdns-48.com205.251.193.130 2600:9000:5301:8200::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.130 2600:9000:5301:8200::1
ns-677.awsdns-20.net205.251.194.165 2600:9000:5302:a500::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1205.awsdns-22.org, ns-1681.awsdns-18.co.uk, ns-386.awsdns-48.com, ns-677.awsdns-20.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-1205.awsdns-22.org 205.251.196.181NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1205.awsdns-22.org 2600:9000:5304:b500::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1681.awsdns-18.co.uk 205.251.198.145NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1681.awsdns-18.co.uk 2600:9000:5306:9100::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-386.awsdns-48.com 205.251.193.130NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-386.awsdns-48.com 2600:9000:5301:8200::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-677.awsdns-20.net 205.251.194.165NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-677.awsdns-20.net 2600:9000:5302:a500::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-1205.awsdns-22.org

Found

Primary (MNAME)
ns-1205.awsdns-22.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-1205.awsdns-22.org (205.251.196.181)1
ns-1205.awsdns-22.org (2600:9000:5304:b500::1)1
ns-1681.awsdns-18.co.uk (205.251.198.145)1
ns-1681.awsdns-18.co.uk (2600:9000:5306:9100::1)1
ns-386.awsdns-48.com (205.251.193.130)1
ns-386.awsdns-48.com (2600:9000:5301:8200::1)1
ns-677.awsdns-20.net (205.251.194.165)1
ns-677.awsdns-20.net (2600:9000:5302:a500::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-1205.awsdns-22.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

warn

32 records at the apex

Found

Read from
205.251.196.181:53
TypeValueTTL
SOAns-1205.awsdns-22.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400300
NSns-1205.awsdns-22.org.300
NSns-1681.awsdns-18.co.uk.300
NSns-386.awsdns-48.com.300
NSns-677.awsdns-20.net.300
A32.186.191.13860
A44.245.41.4960
A16.146.178.4060
MX0 smtp.google.com.1800
TXT"MS=ms45041807"300
TXT"airtable-verification=cefc1f211f96a7ff87b65b078aee41ef"300
TXT"atlassian-domain-verification=SC6fTWOj+nV9XC0dqcPNn6R+trRmss2Xl3spdpJuXh8wiwPPCec1oW9iz9o+5ytj"300
TXT"atlassian-domain-verification=W7l5tMItTm4lNEq8QOucCxLdAbqWNuMG6fHGtkVrN1HsVvbh7EyRFF6gNLpiUgdB"300
TXT"bugcrowd-verification=8bc91ead4bf9979f7de216191cf0e5d4"300
TXT"d735d671-6fd6-4a9c-b02f-b1de48d84680"300
TXT"d7eba8c3-57b1-4dd6-b410-1e9efb1f28e7"300
TXT"docusign=135f3801-2dc6-4e71-acc1-12a337ea3dfb"300
TXT"drift-domain-verification=d5594829f85cebeb24146ac3b2ddf5560ae7f29b4a9c392c0902760192192efb"300
TXT"google-site-verification=7mX1TXXSAxbOuAwPJsk7mmsmvSjVRds99CUaq_54-AQ"300
TXT"google-site-verification=HpCnR5YyS21Rat8qk8rmeSWbtSq3Ft6VD-lag8TWiyE"300
TXT"google-site-verification=PVuLPjqqhb3D1ZmWF_b0a68RvlwES1ouYYQFBDAcYPU"300
TXT"google-site-verification=pJBgQqPzyDub2n2wHk-5fQmcknlgf3gGwsFPoVNs4L8"300
TXT"google-site-verification=uyiHYCSsIa9TUR55Bby5YdIyZjDDiYQfRYH7giX5xns"300
TXT"google-site-verification=zfo7ZoeOCTYZwn-jHOF5cruYlF4gPRN3Xkj7siYq9qw"300
TXT"gradle-verification=TMN4JP1P3UU40CCUOISLDHFIJGRM5"300
TXT"hubspot-developer-verification=MGM0MWQwNTYtM2MyOS00YTM5LTk5NTEtNjRhNmNhNmFhZGI1"300
TXT"hubspot-dns-verification=hubspot-f5fe79ltusWe"300
TXT"lucidchart-verification=aaXCRY7AWJr7Kk4WfHlH"300
TXT"postman-domain-verification=c905e7bd410da4bbcb2c4e0e96b2b9d0f6657debb31e89940b26b5077e847224d357c34a6d139ebf71d9654321a99300dd77d84d6bc11e48ce7d992c3ae7631b"300
TXT"status-page-domain-verification=934c3wdf14l9"300
TXT"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"300
TXT"zapier-domain-verification-challenge=a2c5e2d0-bbe8-4d8c-ba54-95fdcb561986"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 5m; 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