prnasia.com

Checked 22 October 2026, 10:21 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 6 info

Registration

info

.com generic · Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn) · expires 2027-06-02

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Registered
2 June 2007
Last changed
16 June 2025
Expires
2 June 2027
Status
active
Registry nameservers
dom.ns.cloudflare.com, mia.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 2027-06-02 #3
    The registration is valid until 2027-06-02 (222 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

dom.ns.cloudflare.com, mia.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dom.ns.cloudflare.com, mia.ns.cloudflare.com
NS in the zone
dom.ns.cloudflare.com, mia.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
dom.ns.cloudflare.com108.162.193.157 172.64.33.157 173.245.59.157 2803:f800:50::6ca2:c19d 2606:4700:58::adf5:3b9d 2a06:98c1:50::ac40:219dAS13335 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., US108.162.193.157 172.64.33.157 173.245.59.157 2606:4700:58::adf5:3b9d 2803:f800:50::6ca2:c19d 2a06:98c1:50::ac40:219d
mia.ns.cloudflare.com173.245.58.200 108.162.192.200 172.64.32.200 2a06:98c1:50::ac40:20c8 2803:f800:50::6ca2:c0c8 2606:4700:50::adf5:3ac8AS13335 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., US108.162.192.200 172.64.32.200 173.245.58.200 2606:4700:50::adf5:3ac8 2803:f800:50::6ca2:c0c8 2a06:98c1:50::ac40:20c8

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dom.ns.cloudflare.com, mia.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
dom.ns.cloudflare.com 108.162.193.157NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
dom.ns.cloudflare.com 172.64.33.157NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
dom.ns.cloudflare.com 173.245.59.157NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
dom.ns.cloudflare.com 2803:f800:50::6ca2:c19dNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
dom.ns.cloudflare.com 2606:4700:58::adf5:3b9dNOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
dom.ns.cloudflare.com 2a06:98c1:50::ac40:219dNOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 173.245.58.200NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 108.162.192.200NOERROR, 5 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 172.64.32.200NOERROR, 8 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 2a06:98c1:50::ac40:20c8NOERROR, 6 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 2803:f800:50::6ca2:c0c8NOERROR, 7 ms, authoritativenoyes / yesrefused2026.10.2
mia.ns.cloudflare.com 2606:4700:50::adf5:3ac8NOERROR, 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: dom.ns.cloudflare.com: "2026.10.2"; mia.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 2417695684 · primary dom.ns.cloudflare.com

Found

Primary (MNAME)
dom.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417695684
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
dom.ns.cloudflare.com (108.162.193.157)2417695684
dom.ns.cloudflare.com (172.64.33.157)2417695684
dom.ns.cloudflare.com (173.245.59.157)2417695684
dom.ns.cloudflare.com (2803:f800:50::6ca2:c19d)2417695684
dom.ns.cloudflare.com (2606:4700:58::adf5:3b9d)2417695684
dom.ns.cloudflare.com (2a06:98c1:50::ac40:219d)2417695684
mia.ns.cloudflare.com (173.245.58.200)2417695684
mia.ns.cloudflare.com (108.162.192.200)2417695684
mia.ns.cloudflare.com (172.64.32.200)2417695684
mia.ns.cloudflare.com (2a06:98c1:50::ac40:20c8)2417695684
mia.ns.cloudflare.com (2803:f800:50::6ca2:c0c8)2417695684
mia.ns.cloudflare.com (2606:4700:50::adf5:3ac8)2417695684

Checks

  • ✓ Serial 2417695684 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 dom.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 2417695684 is a Unix timestamp (2046-08-12 14:08 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

23 records at the apex

Found

Read from
108.162.193.157:53
TypeValueTTL
SOAdom.ns.cloudflare.com. dns.cloudflare.com. 2417695684 10000 2400 604800 18001800
NSdom.ns.cloudflare.com.86400
NSmia.ns.cloudflare.com.86400
A104.18.96.225300
A104.18.95.225300
AAAA2606:4700::6812:60e1300
AAAA2606:4700::6812:5fe1300
MX0 prnasia-com.mail.protection.outlook.com.120
TXT"MS=ms53456929"300
TXT"MS=ms91501971"300
TXT"_mb2gicgpfx03odhphk06vjtwlh70psv"300
TXT"box-domain-verification=d0369ff4a0618ff19f1d7f9c98c9bb65203e8a33febfc79cf2df6db7eab0fcba"300
TXT"bzh5yw89fvmmqm3091hs8w9n7tyy9r95"300
TXT"google-site-verification=d_-izuzqoqhOICqnztEN3UsltA1yvJLeZ5P9CS4JKsc"300
TXT"google-site-verification=dnh3UYEkjv2CbssJn6sJUOQAWORUFnuQW2W1w1XmJ6M"300
TXT"google-site-verification=gOgI_H_l7n9Dm91RkQI5yZ2ygne31l07AivGzbUA_sM"300
TXT"google-site-verification=w9PQBaNwYhkIknvy5pfJceRdC4kkzhzKiYfa9XBtI60"300
TXT"google-site-verification=wjkKmDJW67rlhtctSTwc7V_gU8tN16gmL23un6y5UTI"300
TXT"google-site-verification=wrOBwnZvUxUocmuqWEvOu6WqM8MjpFBqPHs6DGTZ60w"300
TXT"jhjpd4mso23rjbe3ggiiae74ut"300
TXT"n34wzlt6rsvyfnntnh2jng3nn6yd7jvw"300
TXT"tcwththvtr8jyz4tp1ck0g125nt1hw2v"300
TXT"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com ~all"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (2m). 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