hyperallergic.com

Checked 22 October 2026, 09:14 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · Cloudflare, Inc. · expires 2030-05-10

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Cloudflare, Inc.
Registered
10 May 2007
Last changed
11 November 2025
Expires
10 May 2030
Status
client transfer prohibited
Registry nameservers
brenna.ns.cloudflare.com, chip.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 2030-05-10 #3
    The registration is valid until 2030-05-10 (1296 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

brenna.ns.cloudflare.com, chip.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
brenna.ns.cloudflare.com, chip.ns.cloudflare.com
NS in the zone
brenna.ns.cloudflare.com, chip.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
brenna.ns.cloudflare.com108.162.194.176 162.159.38.176 172.64.34.176 2a06:98c1:50::ac40:22b0 2803:f800:50::6ca2:c2b0 2606:4700:50::a29f:26b0AS13335 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., US108.162.194.176 162.159.38.176 172.64.34.176 2606:4700:50::a29f:26b0 2803:f800:50::6ca2:c2b0 2a06:98c1:50::ac40:22b0
chip.ns.cloudflare.com108.162.193.84 172.64.33.84 173.245.59.84 2a06:98c1:50::ac40:2154 2803:f800:50::6ca2:c154 2606:4700:58::adf5:3b54AS13335 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., US108.162.193.84 172.64.33.84 173.245.59.84 2606:4700:58::adf5:3b54 2803:f800:50::6ca2:c154 2a06:98c1:50::ac40:2154

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: brenna.ns.cloudflare.com, chip.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
brenna.ns.cloudflare.com 108.162.194.176NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brenna.ns.cloudflare.com 162.159.38.176NOERROR, 33 ms, authoritativenoyes / yesrefused2026.10.2
brenna.ns.cloudflare.com 172.64.34.176NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brenna.ns.cloudflare.com 2a06:98c1:50::ac40:22b0NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
brenna.ns.cloudflare.com 2803:f800:50::6ca2:c2b0NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
brenna.ns.cloudflare.com 2606:4700:50::a29f:26b0NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 108.162.193.84NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 172.64.33.84NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 173.245.59.84NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 2a06:98c1:50::ac40:2154NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 2803:f800:50::6ca2:c154NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
chip.ns.cloudflare.com 2606:4700:58::adf5:3b54NOERROR, 16 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: brenna.ns.cloudflare.com: "2026.10.2"; chip.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 2415637474 · primary brenna.ns.cloudflare.com

Found

Primary (MNAME)
brenna.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2415637474
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
brenna.ns.cloudflare.com (108.162.194.176)2415637474
brenna.ns.cloudflare.com (162.159.38.176)2415637474
brenna.ns.cloudflare.com (172.64.34.176)2415637474
brenna.ns.cloudflare.com (2a06:98c1:50::ac40:22b0)2415637474
brenna.ns.cloudflare.com (2803:f800:50::6ca2:c2b0)2415637474
brenna.ns.cloudflare.com (2606:4700:50::a29f:26b0)2415637474
chip.ns.cloudflare.com (108.162.193.84)2415637474
chip.ns.cloudflare.com (172.64.33.84)2415637474
chip.ns.cloudflare.com (173.245.59.84)2415637474
chip.ns.cloudflare.com (2a06:98c1:50::ac40:2154)2415637474
chip.ns.cloudflare.com (2803:f800:50::6ca2:c154)2415637474
chip.ns.cloudflare.com (2606:4700:58::adf5:3b54)2415637474

Checks

  • ✓ Serial 2415637474 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 brenna.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 2415637474 is a Unix timestamp (2046-07-19 18:24 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

warn

19 records at the apex

Found

Read from
108.162.194.176:53
TypeValueTTL
SOAbrenna.ns.cloudflare.com. dns.cloudflare.com. 2415637474 10000 2400 604800 18001800
NSbrenna.ns.cloudflare.com.86400
NSchip.ns.cloudflare.com.86400
A151.101.131.710
A151.101.195.710
A151.101.67.710
A151.101.3.710
AAAA2a04:4e42:200::77510
AAAA2a04:4e42:400::77510
AAAA2a04:4e42::77510
AAAA2a04:4e42:600::77510
MX1 aspmx.l.google.com.300
MX10 alt3.aspmx.l.google.com.300
MX10 alt4.aspmx.l.google.com.300
MX5 alt1.aspmx.l.google.com.300
MX5 alt2.aspmx.l.google.com.300
TXT"google-site-verification=DOyaXvpmf3rFkPlnFqAYKAA_6s5Nrn4SdHSPcuMZ-Us"300
TXT"stripe-verification=5f1c5697ef50fb2f1da58af16b46836c5e4481f5ab0209db406643a9a78fe674"300
TXT"v=spf1 a mx include:_spf.google.com include:shops.shopify.com ~all"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (10s), AAAA (10s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; 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