transifex.com

Checked 22 October 2026, 11:12 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 2 info

Registration

info

.com generic · Amazon Registrar, Inc. · expires 2027-05-08

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Amazon Registrar, Inc.
Registered
8 May 2008
Last changed
16 May 2026
Expires
8 May 2027
Status
client transfer prohibited
Registry nameservers
ns-1516.awsdns-61.org, ns-1656.awsdns-15.co.uk, ns-352.awsdns-44.com, ns-851.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 2027-05-08 #3
    The registration is valid until 2027-05-08 (198 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-1516.awsdns-61.org, ns-1656.awsdns-15.co.uk, ns-352.awsdns-44.com, ns-851.awsdns-42.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns-1516.awsdns-61.org, ns-1656.awsdns-15.co.uk, ns-352.awsdns-44.com, ns-851.awsdns-42.net
NS in the zone
ns-1516.awsdns-61.org, ns-1656.awsdns-15.co.uk, ns-352.awsdns-44.com, ns-851.awsdns-42.net
NameserverAddressesNetwork (AS)Glue
ns-1516.awsdns-61.org205.251.197.236 2600:9000:5305:ec00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1656.awsdns-15.co.uk205.251.198.120 2600:9000:5306:7800::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-352.awsdns-44.com205.251.193.96 2600:9000:5301:6000::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US205.251.193.96 2600:9000:5301:6000::1
ns-851.awsdns-42.net205.251.195.83 2600:9000:5303:5300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1516.awsdns-61.org, ns-1656.awsdns-15.co.uk, ns-352.awsdns-44.com, ns-851.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-1516.awsdns-61.org 205.251.197.236NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1516.awsdns-61.org 2600:9000:5305:ec00::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1656.awsdns-15.co.uk 205.251.198.120NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1656.awsdns-15.co.uk 2600:9000:5306:7800::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-352.awsdns-44.com 205.251.193.96NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-352.awsdns-44.com 2600:9000:5301:6000::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-851.awsdns-42.net 205.251.195.83NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-851.awsdns-42.net 2600:9000:5303:5300::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-1656.awsdns-15.co.uk

Found

Primary (MNAME)
ns-1656.awsdns-15.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-1516.awsdns-61.org (205.251.197.236)1
ns-1516.awsdns-61.org (2600:9000:5305:ec00::1)1
ns-1656.awsdns-15.co.uk (205.251.198.120)1
ns-1656.awsdns-15.co.uk (2600:9000:5306:7800::1)1
ns-352.awsdns-44.com (205.251.193.96)1
ns-352.awsdns-44.com (2600:9000:5301:6000::1)1
ns-851.awsdns-42.net (205.251.195.83)1
ns-851.awsdns-42.net (2600:9000:5303:5300::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-1656.awsdns-15.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

pass

26 records at the apex

Found

Read from
205.251.197.236:53
TypeValueTTL
SOAns-1656.awsdns-15.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1516.awsdns-61.org.172800
NSns-1656.awsdns-15.co.uk.172800
NSns-352.awsdns-44.com.172800
NSns-851.awsdns-42.net.172800
A199.60.103.47300
A199.60.103.147300
MX1 smtp.google.com.86400
TXT"MS=ms68469602"300
TXT"OSSRH-66294"300
TXT"anthropic-domain-verification-41jnhb=PZuFrQxIyrHsEZlTgpGtbc2yO"300
TXT"atlassian-domain-verification=hOdYD8HSUfq/saKwk6ChpQTzIP1wujzwWrORmJ0i96D/ixLNJd6dpLTW4MD2EMus"300
TXT"facebook-domain-verification=5vrbsfauvq09sz7kmszpx6qrsfklzy"300
TXT"globalsign-domain-verification=pyR6ci6IB7uVAxLPZN5Z7_imdnvGJLhXCcmfs8v5RP"300
TXT"google-site-verification=FnggrO-TYAyQOdDBUEUkLX8UiXisCz7xpVwn_CF85EY"300
TXT"google-site-verification=XrIi2HYRJB8q0o4qZWliejOozbvJl4BDtcxavb3X7RE"300
TXT"knowbe4-site-verification=3833e2b09f3e6f9b3e0ef354aac46948"300
TXT"pendo-domain-verification=o4o8yeLsHZVPRnd424ZaEsIMDY0"300
TXT"status-page-domain-verification=8d787n53y587"300
TXT"v=spf1 include:mailgun.org include:_spf.google.com include:722862.spf07.hubspotemail.net ip4:23.253.182.103 ip4:23.253.183.145 ip4:23.253.183.146 ip4:23.253.183.147 ip4:23.253.183.148 ip4:23.253.183.150 ip4:166.78.68.221 " "ip4:166.78.69.146 ip4:167.89.46.159 ip4:167.89.64.9 ip4:167.89.65.0 ip4:167.89.65.53 ip4:167.89.65.100 ip4:167.89.74.233 ip4:167.89.75.33 ip4:167.89.75.126 ip4:167.89.75.136 ip4:167.89.75.164 ip4:192.237.159.42 ip4:192.237.159.43 ip4:167.89.0.0/17 " "ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 -all"300
CAA0 iodef "mailto:security@transifex.com"300
CAA0 issue "amazon.com"300
CAA0 issue "globalsign.com"300
CAA0 issue "pki.goog"300
CAA0 issue "sectigo.com"300
CAA0 issuewild "amazon.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1d, NS 2d.
  • ✓ 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: amazon.com, globalsign.com, pki.goog, sectigo.com.