pubmatic.com

Checked 22 October 2026, 10:22 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · GoDaddy.com, LLC · expires 2034-09-08

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
GoDaddy.com, LLC
Registered
29 December 2006
Last changed
11 July 2025
Expires
8 September 2034
Status
client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Registry nameservers
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
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 2034-09-08 #3
    The registration is valid until 2034-09-08 (2878 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
NS in the zone
dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
NameserverAddressesNetwork (AS)Glue
dns1.p01.nsone.net198.51.44.1 2620:4d:4000:6259:7:1:0:1AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns2.p01.nsone.net198.51.45.1 2a00:edc0:6259:7:1::2AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns3.p01.nsone.net198.51.44.65 2620:4d:4000:6259:7:1:0:3AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-
dns4.p01.nsone.net198.51.45.65 2a00:edc0:6259:7:1::4AS62597 NSONE - NSONE Inc, US AS62597 NSONE - NSONE Inc, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net.
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS62597 (NSONE - NSONE Inc, US): 8 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 .net
    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

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.p01.nsone.net 198.51.44.1NOERROR, 7 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns1.p01.nsone.net 2620:4d:4000:6259:7:1:0:1NOERROR, 7 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p01.nsone.net 198.51.45.1NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns2.p01.nsone.net 2a00:edc0:6259:7:1::2NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p01.nsone.net 198.51.44.65NOERROR, 6 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns3.p01.nsone.net 2620:4d:4000:6259:7:1:0:3NOERROR, 7 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p01.nsone.net 198.51.45.65NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9
dns4.p01.nsone.net 2a00:edc0:6259:7:1::4NOERROR, 4 ms, authoritativenoyes / yesrefused19dd46e347df36b70933bf2be8023258586586a9

Checks

  • ✓ All respond #14
    All 8 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: dns1.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns2.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns3.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9"; dns4.p01.nsone.net: "19dd46e347df36b70933bf2be8023258586586a9".
    #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 1647966837 · primary dns1.p01.nsone.net

Found

Primary (MNAME)
dns1.p01.nsone.net
Contact (RNAME)
hostmaster.nsone.net
Serial
1647966837
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.p01.nsone.net (198.51.44.1)1647966837
dns1.p01.nsone.net (2620:4d:4000:6259:7:1:0:1)1647966837
dns2.p01.nsone.net (198.51.45.1)1647966837
dns2.p01.nsone.net (2a00:edc0:6259:7:1::2)1647966837
dns3.p01.nsone.net (198.51.44.65)1647966837
dns3.p01.nsone.net (2620:4d:4000:6259:7:1:0:3)1647966837
dns4.p01.nsone.net (198.51.45.65)1647966837
dns4.p01.nsone.net (2a00:edc0:6259:7:1::4)1647966837

Checks

  • ✓ Serial 1647966837 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.p01.nsone.net is one of the listed nameservers.
  • ✓ Contact hostmaster@nsone.net #25
    The SOA RNAME hostmaster.nsone.net means hostmaster@nsone.net.
  • ✓ Timestamp serial #26
    The serial 1647966837 is a Unix timestamp (2022-03-22 16:33 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

33 records at the apex

Found

Read from
198.51.44.1:53
TypeValueTTL
SOAdns1.p01.nsone.net. hostmaster.nsone.net. 1647966837 3600 600 604800 36003600
NSdns1.p01.nsone.net.3600
NSdns2.p01.nsone.net.3600
NSdns3.p01.nsone.net.3600
NSdns4.p01.nsone.net.3600
A3.174.46.8360
A3.174.46.10860
A3.174.46.1060
A3.174.46.5860
AAAA2600:9000:28eb:9000:1a:89bc:d200:93a160
AAAA2600:9000:28eb:dc00:1a:89bc:d200:93a160
AAAA2600:9000:28eb:6600:1a:89bc:d200:93a160
AAAA2600:9000:28eb:ae00:1a:89bc:d200:93a160
AAAA2600:9000:28eb:7800:1a:89bc:d200:93a160
AAAA2600:9000:28eb:1c00:1a:89bc:d200:93a160
AAAA2600:9000:28eb:f400:1a:89bc:d200:93a160
AAAA2600:9000:28eb:fc00:1a:89bc:d200:93a160
MX10 pubmatic-com.mail.protection.outlook.com.300
TXT"MS=ms97294344"600
TXT"cloudflare-verify.pubmatic.com=251111832-549189046"600
TXT"google-site-verification=Jn4Jtz0fCWQxljwA2-D15cbK1zLSMuLFANANTeAu4UM"600
TXT"hes=7e94a34b26db97ef237e11205058c0fb"600
TXT"pardot_214271_*=d91debdeb5dc3f241f55d67d2d6396d8f7f8f6a1791396b9e1f64f56df382f32"600
TXT"v=spf1 ip4:18.200.1.103 ip4:52.8.26.248 ip4:162.248.17.59 ip4:74.199.212.72 include:jira.iponweb.net include:_spf-dc41.sapsf.com include:_spf.salesforce.com include:aspmx.pardot.com include:_spf.qualtrics.com include:spf.protection.outlook.com include:spf" ".tipalti.com include:mail.zendesk.com include:_spf.psm.knowbe4.com include:spf.talpanetwork.com -all"600
TXT"zoom=9694355" "ca3-06b3a0af34c24f35b9d6441fb0ee7b0e"600
TXT"google-site-verification=4x3AESePyWUn3Fyfirac5BT57SUokyyYZhdZ331OmpQ"600
TXT"google-site-verification=D6vg1pORp0ZtyaeGqXbiAcjDS7_flAW30VL0iClCmgE"600
TXT"_9wpgmpewoullw91zaqpzt8m8qc7j77g"600
TXT"cursor-domain-verification-ch2q0f=5DZkmX5DbpYp7YqaEeojXLqGx"600
TXT"notion-domain-verification=19jpcRd8mRVJtv6Hn97ddyBJ5GBR2SPJbT7ti3W5wvk"600
TXT"anthropic-domain-verification-6tq69t=QONTNTkr56i3Ju2XiibqWyQOd"600
TXT"atlassian-domain-verification=vM2JC9kWhVtDdMtu/qOP/i9ECeHbdGIisRnqys4qlOR6YZrirHFzFxaEoL/qzQJa"600
TXT"lf0lbi66of3jcf6n0uv4gr752f"600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (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