ptsecurity.com

Checked 22 October 2026, 10:22 UTC · via 8.8.8.8
!Passed with warnings
21 passed 5 warnings 0 failed 5 info

Registration

info

.com generic · Regional Network Information Center, JSC dba RU-CENTER · expires 2027-07-15

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Regional Network Information Center, JSC dba RU-CENTER
Registered
15 July 2002
Last changed
13 July 2026
Expires
15 July 2027
Status
client transfer prohibited
Registry nameservers
ns3.ptsecurity.com, ns4.ptsecurity.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 2027-07-15 #3
    The registration is valid until 2027-07-15 (265 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

warn

ns3.ptsecurity.com, ns4.ptsecurity.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns3.ptsecurity.com, ns4.ptsecurity.com
NS in the zone
ns3.ptsecurity.com, ns4.ptsecurity.com
NameserverAddressesNetwork (AS)Glue
ns3.ptsecurity.com178.248.239.193AS51115 HLL-AS - HLL LLC, RU178.248.239.193
ns4.ptsecurity.com178.248.239.198AS51115 HLL-AS - HLL LLC, RU178.248.239.198

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.ptsecurity.com, ns4.ptsecurity.com.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns3.ptsecurity.com, ns4.ptsecurity.com.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 178.248.239.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS51115 (HLL-AS - HLL LLC, RU): 2 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

pass

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns3.ptsecurity.com 178.248.239.193NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns4.ptsecurity.com 178.248.239.198NOERROR, 9 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 2 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

warn

serial 1792596909 · primary ns3.ptsecurity.com

Found

Primary (MNAME)
ns3.ptsecurity.com
Contact (RNAME)
admin.ptsecurity.com
Serial
1792596909
Refresh / retry
604800 s / 86400 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns3.ptsecurity.com (178.248.239.193)1792596909
ns4.ptsecurity.com (178.248.239.198)1792596909

Checks

  • ✓ Serial 1792596909 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 7d is outside 20m–1d. Current values: refresh 7d, retry 1d, expire 28d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.ptsecurity.com is one of the listed nameservers.
  • ✓ Contact admin@ptsecurity.com #25
    The SOA RNAME admin.ptsecurity.com means admin@ptsecurity.com.
  • ✓ Timestamp serial #26
    The serial 1792596909 is a Unix timestamp (2026-10-21 15:35 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

13 records at the apex

Found

Read from
178.248.239.193:53
TypeValueTTL
SOAns3.ptsecurity.com. admin.ptsecurity.com. 1792596909 604800 86400 2419200 3003600
NSns4.ptsecurity.com.3600
NSns3.ptsecurity.com.3600
A178.248.239.15160
MX20 mx4.ptsecurity.com.3600
MX10 mx3.ptsecurity.com.3600
MX10 mx1.ptsecurity.com.3600
TXT"holst-verification=hyudpw5jwn4wxyeea5b2ttrk9ddy8gp2ded98m7z"3600
TXT"JUC-HET-HLP"3600
TXT"v=spf1 redirect=_spf.ptsecurity.com"3600
TXT"83a8ba7d-25e8-4965-b793-209669e99c08"3600
TXT"yandex-verification: 2deb4daf096764c5"3600
TXT"google-site-verification=UnCjLLh2vO5lihRRtpcJeP7M_FREZJk2vw7P5x8DHM4"3600

Checks

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