tuaw.com

Checked 22 October 2026, 11:13 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2027-06-16

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
16 June 2004
Last changed
17 June 2026
Expires
16 June 2027
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com
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 2027-06-16 #3
    The registration is valid until 2027-06-16 (237 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew 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

ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com
NS in the zone
ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com
NameserverAddressesNetwork (AS)Glue
ns1.tuaw.com162.159.8.140 2400:cb00:2049:1::a29f:88cAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.8.140 2400:cb00:2049:1::a29f:88c
ns2.tuaw.com162.159.10.131 2400:cb00:2049:1::a29f:a83AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.10.131 2400:cb00:2049:1::a29f:a83
ns3.tuaw.com162.159.11.112 2400:cb00:2049:1::a29f:b70AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.11.112 2400:cb00:2049:1::a29f:b70
ns4.tuaw.com198.41.223.80 2400:cb00:2049:1::c629:df50AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US198.41.223.80 2400:cb00:2049:1::c629:df50

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.tuaw.com, ns2.tuaw.com, ns3.tuaw.com, ns4.tuaw.com.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, 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
  • i
    All nameserver names under .com
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.tuaw.com 162.159.8.140NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ns1.tuaw.com 2400:cb00:2049:1::a29f:88cNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ns2.tuaw.com 162.159.10.131NOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
ns2.tuaw.com 2400:cb00:2049:1::a29f:a83NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
ns3.tuaw.com 162.159.11.112NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ns3.tuaw.com 2400:cb00:2049:1::a29f:b70NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ns4.tuaw.com 198.41.223.80NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
ns4.tuaw.com 2400:cb00:2049:1::c629:df50NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.tuaw.com: "2026.10.2"; ns2.tuaw.com: "2026.10.2"; ns3.tuaw.com: "2026.10.2"; ns4.tuaw.com: "2026.10.2". Hide or replace the version string.
    #17
  • ✓ 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 2416789450 · primary ns1.tuaw.com

Found

Primary (MNAME)
ns1.tuaw.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416789450
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.tuaw.com (162.159.8.140)2416789450
ns1.tuaw.com (2400:cb00:2049:1::a29f:88c)2416789450
ns2.tuaw.com (162.159.10.131)2416789450
ns2.tuaw.com (2400:cb00:2049:1::a29f:a83)2416789450
ns3.tuaw.com (162.159.11.112)2416789450
ns3.tuaw.com (2400:cb00:2049:1::a29f:b70)2416789450
ns4.tuaw.com (198.41.223.80)2416789450
ns4.tuaw.com (2400:cb00:2049:1::c629:df50)2416789450

Checks

  • ✓ Serial 2416789450 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.tuaw.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2416789450 is a Unix timestamp (2046-08-02 02:24 UTC).

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

info

11 records at the apex

Found

Read from
162.159.8.140:53
TypeValueTTL
SOAns1.tuaw.com. dns.cloudflare.com. 2416789450 10000 2400 604800 18001800
NSns1.tuaw.com.86400
NSns2.tuaw.com.86400
NSns3.tuaw.com.86400
NSns4.tuaw.com.86400
A51.81.149.184300
MX0 mail.tuaw.com.300
TXT"ahrefs-site-verification_ae7aa0f3ac33d149985f7391da087bb923331aa3de06cc67731eea3dd97aa579"300
TXT"facebook-domain-verification=vs5ihzg7claj76c7z6375iulnx8dcr"300
TXT"google-site-verification=3cquNx3muuREyvAHPkrGoNTrDtZ1AYd8H0mZT6aB9c8"300
TXT"v=spf1 +mx +a +ip4:51.81.149.184 ~all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; resolvers may use either.
  • ✓ 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