lifehacker.com

Checked 22 October 2026, 09:35 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2029-09-08

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
8 September 2004
Last changed
9 April 2024
Expires
8 September 2029
Status
client transfer prohibited
Registry nameservers
aria.ns.cloudflare.com, owen.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 2029-09-08 #3
    The registration is valid until 2029-09-08 (1052 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

aria.ns.cloudflare.com, owen.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
aria.ns.cloudflare.com, owen.ns.cloudflare.com
NS in the zone
aria.ns.cloudflare.com, owen.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
aria.ns.cloudflare.com172.64.32.68 173.245.58.68 108.162.192.68 2803:f800:50::6ca2:c044 2a06:98c1:50::ac40:2044 2606:4700:50::adf5:3a44AS13335 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., US108.162.192.68 172.64.32.68 173.245.58.68 2606:4700:50::adf5:3a44 2803:f800:50::6ca2:c044 2a06:98c1:50::ac40:2044
owen.ns.cloudflare.com108.162.193.219 173.245.59.219 172.64.33.219 2606:4700:58::adf5:3bdb 2803:f800:50::6ca2:c1db 2a06:98c1:50::ac40:21dbAS13335 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., US108.162.193.219 172.64.33.219 173.245.59.219 2606:4700:58::adf5:3bdb 2803:f800:50::6ca2:c1db 2a06:98c1:50::ac40:21db

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: aria.ns.cloudflare.com, owen.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
aria.ns.cloudflare.com 172.64.32.68NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
aria.ns.cloudflare.com 173.245.58.68NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
aria.ns.cloudflare.com 108.162.192.68NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
aria.ns.cloudflare.com 2803:f800:50::6ca2:c044NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
aria.ns.cloudflare.com 2a06:98c1:50::ac40:2044NOERROR, 22 ms, authoritativenoyes / yesrefused2026.10.2
aria.ns.cloudflare.com 2606:4700:50::adf5:3a44NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 108.162.193.219NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 173.245.59.219NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 172.64.33.219NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 2606:4700:58::adf5:3bdbNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 2803:f800:50::6ca2:c1dbNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
owen.ns.cloudflare.com 2a06:98c1:50::ac40:21dbNOERROR, 15 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: aria.ns.cloudflare.com: "2026.10.2"; owen.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 2416525452 · primary aria.ns.cloudflare.com

Found

Primary (MNAME)
aria.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416525452
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
aria.ns.cloudflare.com (172.64.32.68)2416525452
aria.ns.cloudflare.com (173.245.58.68)2416525452
aria.ns.cloudflare.com (108.162.192.68)2416525452
aria.ns.cloudflare.com (2803:f800:50::6ca2:c044)2416525452
aria.ns.cloudflare.com (2a06:98c1:50::ac40:2044)2416525452
aria.ns.cloudflare.com (2606:4700:50::adf5:3a44)2416525452
owen.ns.cloudflare.com (108.162.193.219)2416525452
owen.ns.cloudflare.com (173.245.59.219)2416525452
owen.ns.cloudflare.com (172.64.33.219)2416525452
owen.ns.cloudflare.com (2606:4700:58::adf5:3bdb)2416525452
owen.ns.cloudflare.com (2803:f800:50::6ca2:c1db)2416525452
owen.ns.cloudflare.com (2a06:98c1:50::ac40:21db)2416525452

Checks

  • ✓ Serial 2416525452 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 aria.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 2416525452 is a Unix timestamp (2046-07-30 01:04 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

22 records at the apex

Found

Read from
172.64.32.68:53
TypeValueTTL
SOAaria.ns.cloudflare.com. dns.cloudflare.com. 2416525452 10000 2400 604800 18001800
NSaria.ns.cloudflare.com.86400
NSowen.ns.cloudflare.com.86400
A104.18.34.146300
A172.64.153.110300
AAAA2a06:98c1:3100::6812:2292300
AAAA2606:4700:4408::ac40:996e300
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"_globalsign-domain-verification=63GY7DdhmEwU6Yc6mPqIRV6Tlu3atl9B6izj643Qy2"120
TXT"docusign=98fb1fe5-0c2f-4d46-8a16-d26f42ce6628"120
TXT"figma-domain-verification=4f7cdfa45ca39f617dd7ba7b165e1bfd5e9b5e1ec18b849c6098dfdc4a4cfa64-1740511309"120
TXT"google-site-verification=1PrZ4hixugKDZCeBh7I-2ThKU_llLGdh_Optmlr77uI"120
TXT"google-site-verification=3DLUukA4-5eOiZ71hPqAcv2gN-5Dw7pF1T4UtabDr6k"120
TXT"google-site-verification=GgOdzhtK93paB6luM-25so6z5U9ndsLcqOAIM8CRYh0"120
TXT"google-site-verification=pI4-xVT5VS5ZbgMFxXhUBmm8q_PO3q9nsClEuGUMVJI"120
TXT"onetrust-domain-verification=cea86b2c01e84a158a1b440879c93f7b"120
TXT"tollbit-domain-verification=8b5157c69c2d7498cb3604b2fb66d3b1a6bd013cee508660f56f3fafe16c81fb"120
TXT"v=spf1 include:_spf.google.com include:_spf.emailcampaigns.net -all"120

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 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