perl.com

Checked 22 October 2026, 10:13 UTC · via 8.8.8.8
!Passed with warnings
25 passed 2 warnings 0 failed 4 info

Registration

info

.com generic · Network Solutions, LLC · expires 2031-02-05

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Network Solutions, LLC
Registered
16 August 1994
Last changed
5 February 2021
Expires
5 February 2031
Status
client transfer prohibited
Registry nameservers
ns1.eu.bitnames.com, ns1.us.bitnames.com, ns2.eu.bitnames.com, ns2.us.bitnames.com, ns3.us.bitnames.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 2031-02-05 #3
    The registration is valid until 2031-02-05 (1567 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

ns1.eu.bitnames.com, ns1.us.bitnames.com, ns2.eu.bitnames.com, ns2.us.bitnames.com, ns3.us.bitnames.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.eu.bitnames.com, ns1.us.bitnames.com, ns2.eu.bitnames.com, ns2.us.bitnames.com, ns3.us.bitnames.com
NS in the zone
ns1.eu.bitnames.com, ns1.us.bitnames.com, ns2.eu.bitnames.com, ns2.us.bitnames.com, ns3.us.bitnames.com
NameserverAddressesNetwork (AS)Glue
ns1.eu.bitnames.com209.97.187.106 2a03:b0c0:1:e0:0:1:d6a2:7001AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US209.97.187.106 2a03:b0c0:1:e0:0:1:d6a2:7001
ns1.us.bitnames.com172.236.244.196 2a01:7e03::2000:d0ff:fec4:3876AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG172.236.244.196 2a01:7e03::2000:d0ff:fec4:3876
ns2.eu.bitnames.com172.233.48.116 2600:3c0e::2000:a0ff:fee9:27c0AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG172.233.48.116 2600:3c0e::2000:a0ff:fee9:27c0
ns2.us.bitnames.com107.170.182.174AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US107.170.182.174
ns3.us.bitnames.com68.183.187.150 2400:6180:0:d0::16e6:2001AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US2400:6180:0:d0::16e6:2001 68.183.187.150

Checks

  • ✓ 5 nameservers #6
    Delegated to ns1.eu.bitnames.com, ns1.us.bitnames.com, ns2.eu.bitnames.com, ns2.us.bitnames.com, ns3.us.bitnames.com.
  • ✓ 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 5 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US): 5 addresses; AS63949 (AKAMAI-LINODE-AP - Akamai Connected Cloud, SG): 4 addresses.
  • 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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns2.us.bitnames.com.
    #13

Nameservers

warn

9 of 9 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.eu.bitnames.com 209.97.187.106NOERROR, 21 ms, authoritativenoyes / yesrefusedNSD 4.14.0
ns1.eu.bitnames.com 2a03:b0c0:1:e0:0:1:d6a2:7001NOERROR, 22 ms, authoritativenoyes / yesrefusedNSD 4.14.0
ns1.us.bitnames.com 172.236.244.196NOERROR, 162 ms, authoritativenoyes / yesrefused9.20.24-1ubuntu0.4-Ubuntu
ns1.us.bitnames.com 2a01:7e03::2000:d0ff:fec4:3876NOERROR, 161 ms, authoritativenoyes / yesrefused9.20.24-1ubuntu0.4-Ubuntu
ns2.eu.bitnames.com 172.233.48.116NOERROR, 13 ms, authoritativenoyes / yesrefusedNSD 4.14.0
ns2.eu.bitnames.com 2600:3c0e::2000:a0ff:fee9:27c0NOERROR, 13 ms, authoritativenoyes / yesrefusedNSD 4.14.0
ns2.us.bitnames.com 107.170.182.174NOERROR, 92 ms, authoritativenoyes / yesrefusedNSD 4.8.0
ns3.us.bitnames.com 68.183.187.150NOERROR, 159 ms, authoritativenoyes / yesrefusedNSD 4.14.0
ns3.us.bitnames.com 2400:6180:0:d0::16e6:2001NOERROR, 160 ms, authoritativenoyes / yesrefusedNSD 4.14.0

Checks

  • ✓ All respond #14
    All 9 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: ns1.eu.bitnames.com: "NSD 4.14.0"; ns1.us.bitnames.com: "9.20.24-1ubuntu0.4-Ubuntu"; ns2.eu.bitnames.com: "NSD 4.14.0"; ns2.us.bitnames.com: "NSD 4.8.0"; ns3.us.bitnames.com: "NSD 4.14.0". 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 2026013004 · primary ns1.us.bitnames.com

Found

Primary (MNAME)
ns1.us.bitnames.com
Contact (RNAME)
dnsoper.bitnames.com
Serial
2026013004
Refresh / retry
14400 s / 10800 s
Expire
3628800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.eu.bitnames.com (209.97.187.106)2026013004
ns1.eu.bitnames.com (2a03:b0c0:1:e0:0:1:d6a2:7001)2026013004
ns1.us.bitnames.com (172.236.244.196)2026013004
ns1.us.bitnames.com (2a01:7e03::2000:d0ff:fec4:3876)2026013004
ns2.eu.bitnames.com (172.233.48.116)2026013004
ns2.eu.bitnames.com (2600:3c0e::2000:a0ff:fee9:27c0)2026013004
ns2.us.bitnames.com (107.170.182.174)2026013004
ns3.us.bitnames.com (68.183.187.150)2026013004
ns3.us.bitnames.com (2400:6180:0:d0::16e6:2001)2026013004

Checks

  • ✓ Serial 2026013004 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 3h, expire 42d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.us.bitnames.com is one of the listed nameservers.
  • ✓ Contact dnsoper@bitnames.com #25
    The SOA RNAME dnsoper.bitnames.com means dnsoper@bitnames.com.
  • ✓ Date-based serial #26
    The serial 2026013004 follows the YYYYMMDDnn convention (2026-01-30).

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

15 records at the apex

Found

Read from
209.97.187.106:53
TypeValueTTL
SOAns1.us.bitnames.com. dnsoper.bitnames.com. 2026013004 14400 10800 3628800 36007200
NSns1.eu.bitnames.com.172800
NSns1.us.bitnames.com.172800
NSns2.eu.bitnames.com.172800
NSns2.us.bitnames.com.172800
NSns3.us.bitnames.com.172800
A151.101.65.55600
A151.101.129.55600
A151.101.193.55600
A151.101.1.55600
AAAA2a04:4e42:400::311600
AAAA2a04:4e42:600::311600
AAAA2a04:4e42::311600
AAAA2a04:4e42:200::311600
MX0 mail.indra.com.3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, AAAA 10m, MX 1h, NS 2d.
  • ✓ 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