physio-pedia.com

Checked 22 October 2026, 10:14 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · 123-Reg Limited · expires 2027-03-09

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
123-Reg Limited
Registered
9 March 2008
Last changed
10 March 2025
Expires
9 March 2027
Status
active
Registry nameservers
ingrid.ns.cloudflare.com, zod.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 2027-03-09 #3
    The registration is valid until 2027-03-09 (138 days).
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ingrid.ns.cloudflare.com, zod.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ingrid.ns.cloudflare.com, zod.ns.cloudflare.com
NS in the zone
ingrid.ns.cloudflare.com, zod.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
ingrid.ns.cloudflare.com173.245.58.165 108.162.192.165 172.64.32.165 2803:f800:50::6ca2:c0a5 2606:4700:50::adf5:3aa5 2a06:98c1:50::ac40:20a5AS13335 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., US108.162.192.165 172.64.32.165 173.245.58.165 2606:4700:50::adf5:3aa5 2803:f800:50::6ca2:c0a5 2a06:98c1:50::ac40:20a5
zod.ns.cloudflare.com173.245.59.250 108.162.193.250 172.64.33.250 2a06:98c1:50::ac40:21fa 2606:4700:58::adf5:3bfa 2803:f800:50::6ca2:c1faAS13335 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., US108.162.193.250 172.64.33.250 173.245.59.250 2606:4700:58::adf5:3bfa 2803:f800:50::6ca2:c1fa 2a06:98c1:50::ac40:21fa

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ingrid.ns.cloudflare.com, zod.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
ingrid.ns.cloudflare.com 173.245.58.165NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ingrid.ns.cloudflare.com 108.162.192.165NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ingrid.ns.cloudflare.com 172.64.32.165NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
ingrid.ns.cloudflare.com 2803:f800:50::6ca2:c0a5NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
ingrid.ns.cloudflare.com 2606:4700:50::adf5:3aa5NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
ingrid.ns.cloudflare.com 2a06:98c1:50::ac40:20a5NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 173.245.59.250NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 108.162.193.250NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 172.64.33.250NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 2a06:98c1:50::ac40:21faNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 2606:4700:58::adf5:3bfaNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
zod.ns.cloudflare.com 2803:f800:50::6ca2:c1faNOERROR, 5 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: ingrid.ns.cloudflare.com: "2026.10.2"; zod.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 2418074607 · primary ingrid.ns.cloudflare.com

Found

Primary (MNAME)
ingrid.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418074607
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ingrid.ns.cloudflare.com (173.245.58.165)2418074607
ingrid.ns.cloudflare.com (108.162.192.165)2418074607
ingrid.ns.cloudflare.com (172.64.32.165)2418074607
ingrid.ns.cloudflare.com (2803:f800:50::6ca2:c0a5)2418074607
ingrid.ns.cloudflare.com (2606:4700:50::adf5:3aa5)2418074607
ingrid.ns.cloudflare.com (2a06:98c1:50::ac40:20a5)2418074607
zod.ns.cloudflare.com (173.245.59.250)2418074607
zod.ns.cloudflare.com (108.162.193.250)2418074607
zod.ns.cloudflare.com (172.64.33.250)2418074607
zod.ns.cloudflare.com (2a06:98c1:50::ac40:21fa)2418074607
zod.ns.cloudflare.com (2606:4700:58::adf5:3bfa)2418074607
zod.ns.cloudflare.com (2803:f800:50::6ca2:c1fa)2418074607

Checks

  • ✓ Serial 2418074607 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 ingrid.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 2418074607 is a Unix timestamp (2046-08-16 23:23 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

20 records at the apex

Found

Read from
173.245.58.165:53
TypeValueTTL
SOAingrid.ns.cloudflare.com. dns.cloudflare.com. 2418074607 10000 2400 604800 18001800
NSingrid.ns.cloudflare.com.86400
NSzod.ns.cloudflare.com.86400
A172.66.156.25300
A104.20.43.8300
AAAA2606:4700:10::6814:2b08300
AAAA2606:4700:10::ac42:9c19300
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"facebook-domain-verification=z2784nkha1kuxzjc3uj9qcpn2gs0zl"300
TXT"google-site-verification=FY_XzBzvs9cFyU0UbGAzsUvFqRF927pCOyKa7SmVywc"300
TXT"google-site-verification=Os4aBxEWjkJ5Yf6B7SMWTFOI_JP1LGK8utBzZG9c2nk"300
TXT"google-site-verification=_kPXbsXOFwO1MQg66Q3TQiAy7VuFJyzsBdc3TBjsNXQ"300
TXT"google-site-verification=lAzerhnaC-v3PWPnJjoaja3-uGYZTdOGqYtgsh0Rrvw"300
TXT"mistral-domain-verification=3705ef95625a41975aac8dbcf64949e3773152ad"300
TXT"stripe-verification=88b47e00a6b47167dab1143c21c3a53e29154123e9547cbaa37570c99bbfd615"300
TXT"v=spf1 include:_spf.google.com include:amazonses.com include:spf.mtasv.net include:smtp.wikiteq.com ~all"300

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.
  • ✓ 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