theresanaiforthat.com

Checked 22 October 2026, 11:03 UTC · via 8.8.8.8
!Passed with warnings
28 passed 1 warning 0 failed 6 info

Registration

info

.com generic · Cloudflare, Inc. · expires 2033-10-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Cloudflare, Inc.
Registered
2 October 2022
Last changed
24 October 2023
Expires
2 October 2033
Status
client transfer prohibited
Registry nameservers
erin.ns.cloudflare.com, kip.ns.cloudflare.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 2033-10-02 #3
    The registration is valid until 2033-10-02 (2537 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

erin.ns.cloudflare.com, kip.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
erin.ns.cloudflare.com, kip.ns.cloudflare.com
NS in the zone
erin.ns.cloudflare.com, kip.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
erin.ns.cloudflare.com108.162.192.113 173.245.58.113 172.64.32.113 2a06:98c1:50::ac40:2071 2803:f800:50::6ca2:c071 2606:4700:50::adf5:3a71AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.192.113 172.64.32.113 173.245.58.113 2606:4700:50::adf5:3a71 2803:f800:50::6ca2:c071 2a06:98c1:50::ac40:2071
kip.ns.cloudflare.com108.162.193.128 172.64.33.128 173.245.59.128 2803:f800:50::6ca2:c180 2606:4700:58::adf5:3b80 2a06:98c1:50::ac40:2180AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.193.128 172.64.33.128 173.245.59.128 2606:4700:58::adf5:3b80 2803:f800:50::6ca2:c180 2a06:98c1:50::ac40:2180

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: erin.ns.cloudflare.com, kip.ns.cloudflare.com.
    #6
  • ✓ 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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
erin.ns.cloudflare.com 108.162.192.113NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
erin.ns.cloudflare.com 173.245.58.113NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
erin.ns.cloudflare.com 172.64.32.113NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
erin.ns.cloudflare.com 2a06:98c1:50::ac40:2071NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
erin.ns.cloudflare.com 2803:f800:50::6ca2:c071NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
erin.ns.cloudflare.com 2606:4700:50::adf5:3a71NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 108.162.193.128NOERROR, 4 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 172.64.33.128NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 173.245.59.128NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 2803:f800:50::6ca2:c180NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 2606:4700:58::adf5:3b80NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
kip.ns.cloudflare.com 2a06:98c1:50::ac40:2180NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: erin.ns.cloudflare.com: "2026.10.2"; kip.ns.cloudflare.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 2417914404 · primary erin.ns.cloudflare.com

Found

Primary (MNAME)
erin.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417914404
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
erin.ns.cloudflare.com (108.162.192.113)2417914404
erin.ns.cloudflare.com (173.245.58.113)2417914404
erin.ns.cloudflare.com (172.64.32.113)2417914404
erin.ns.cloudflare.com (2a06:98c1:50::ac40:2071)2417914404
erin.ns.cloudflare.com (2803:f800:50::6ca2:c071)2417914404
erin.ns.cloudflare.com (2606:4700:50::adf5:3a71)2417914404
kip.ns.cloudflare.com (108.162.193.128)2417914404
kip.ns.cloudflare.com (172.64.33.128)2417914404
kip.ns.cloudflare.com (173.245.59.128)2417914404
kip.ns.cloudflare.com (2803:f800:50::6ca2:c180)2417914404
kip.ns.cloudflare.com (2606:4700:58::adf5:3b80)2417914404
kip.ns.cloudflare.com (2a06:98c1:50::ac40:2180)2417914404

Checks

  • ✓ Serial 2417914404 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 erin.ns.cloudflare.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 2417914404 is a Unix timestamp (2046-08-15 02:53 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
23 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 D1B34F8C816CC309…yes

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 2371 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-21 10:03 UTC and expires at 2026-10-23 12:03 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

21 records at the apex

Found

Read from
108.162.192.113:53
TypeValueTTL
SOAerin.ns.cloudflare.com. dns.cloudflare.com. 2417914404 10000 2400 604800 18001800
NSerin.ns.cloudflare.com.86400
NSkip.ns.cloudflare.com.86400
A172.66.153.197300
A104.20.17.89300
AAAA2606:4700:10::6814:1159300
AAAA2606:4700:10::ac42:99c5300
MX1 aspmx.l.google.com.3600
MX10 alt3.aspmx.l.google.com.3600
MX10 alt4.aspmx.l.google.com.3600
MX5 alt1.aspmx.l.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
TXT"857610a67994f28f99067818fcc995f5"300
TXT"apple-domain=Zu0T29zCRykMs4Mu"300
TXT"facebook-domain-verification=4hm5da73noi2pyxl9cajrxv97fjf0y"300
TXT"google-site-verification=34tWftoG4BYJ8PyZG7qAlkjcQ5U_N8w1fKMFXgbeKVY"300
TXT"google-site-verification=SdslaH2jQm3wKxuH-Vqte61sJd2DVByVQ-ez_6MlY70"300
TXT"google-site-verification=_XG6zouU-Xmof0tko7IBjIXrn1BmZkgURX61ETVWXQk"300
TXT"google-site-verification=uD65qh4Anc__iAQtA7n6yj5E_0p9kwSEoe7wrUUgiUE"300
TXT"v=MCPv1; k=ed25519; p=a5Jljzv7QTpo92JJq3kI4yzfNcjQFJtpDSXczERin+A="300
TXT"v=spf1 include:spf.mailjet.com include:icloud.com include:_spf.google.com -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, 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.
  • ✓ 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