pgatour.com

Checked 22 October 2026, 10:13 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 5 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-06-10

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
11 June 1995
Last changed
6 June 2026
Expires
10 June 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
udns1.cscdns.net, udns2.cscdns.uk
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 2027-06-10 #3
    The registration is valid until 2027-06-10 (230 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

udns1.cscdns.net, udns2.cscdns.uk

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
udns1.cscdns.net, udns2.cscdns.uk
NS in the zone
udns1.cscdns.net, udns2.cscdns.uk
NameserverAddressesNetwork (AS)Glue
udns1.cscdns.net204.74.66.1 2001:502:f3ff::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
udns2.cscdns.uk204.74.111.1 2001:502:4612::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: udns1.cscdns.net, udns2.cscdns.uk.
    #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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .net, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
udns1.cscdns.net 204.74.66.1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns1.cscdns.net 2001:502:f3ff::201NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns2.cscdns.uk 204.74.111.1NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
udns2.cscdns.uk 2001:502:4612::201NOERROR, 32 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 4 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: udns1.cscdns.net: "UltraDNS Nameserver"; udns2.cscdns.uk: "UltraDNS Nameserver".
    #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

warn

serial 2021052494 · primary udns1.cscdns.net

Found

Primary (MNAME)
udns1.cscdns.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2021052494
Refresh / retry
900 s / 300 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
udns1.cscdns.net (204.74.66.1)2021052494
udns1.cscdns.net (2001:502:f3ff::201)2021052494
udns2.cscdns.uk (204.74.111.1)2021052494
udns2.cscdns.uk (2001:502:4612::201)2021052494

Checks

  • ✓ Serial 2021052494 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d. Current values: refresh 15m, retry 5m, expire 7d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver udns1.cscdns.net is one of the listed nameservers.
  • ✓ Contact hostmaster@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Date-based serial #26
    The serial 2021052494 follows the YYYYMMDDnn convention (2021-05-24).

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

32 records at the apex

Found

Read from
204.74.66.1:53
TypeValueTTL
SOAudns1.cscdns.net. hostmaster.cscdns.net. 2021052494 900 300 604800 30014400
NSudns1.cscdns.net.86400
NSudns2.cscdns.uk.86400
A143.204.181.8860
A143.204.181.12260
A143.204.181.11560
A143.204.181.6560
AAAA2600:9000:20f1:2200:16:7ce5:3480:93a160
AAAA2600:9000:20f1:9800:16:7ce5:3480:93a160
AAAA2600:9000:20f1:1200:16:7ce5:3480:93a160
AAAA2600:9000:20f1:9000:16:7ce5:3480:93a160
AAAA2600:9000:20f1:e000:16:7ce5:3480:93a160
AAAA2600:9000:20f1:6a00:16:7ce5:3480:93a160
AAAA2600:9000:20f1:de00:16:7ce5:3480:93a160
AAAA2600:9000:20f1:3600:16:7ce5:3480:93a160
MX10 cluster8.us.messagelabs.com.14400
MX20 cluster8a.us.messagelabs.com.14400
TXT"BSI240047301693"3600
TXT"i4kltk6r78j292s6boj9c7sebu"3600
TXT"a2b37334-9099-4336-b6b8-cc1f79ddb67f"3600
TXT"apple-domain-verification=LbG15ZYSk9wuVU0v"3600
TXT"knowbe4-site-verification=7ae746476136eca7319871f8094c0e50"3600
TXT"facebook-domain-verification=2t6p4p5r8crkron9m8fx9wyt9090gz"3600
TXT"google-site-verification=20u5jCvxlgdo7SzRvkpFB7hXTFR5L1VlVN_2w6J1zyI"3600
TXT"google-site-verification=84TTGfZTpNrye2d397ECr2hD8LkrkmmP53moTpHl_GY"3600
TXT"google-site-verification=Ibo_I_3ti5yDZ3a4AdjZ-m5_PQJV9BJfmmUBixcAtvc"3600
TXT"google-site-verification=U-jiQyEbLv_aL1lQhpFgVHT6vik-WA7UoVrXewnEd_s"3600
TXT"google-site-verification=YqlI6Cnh5cvetgyICIskxYeZMuen_QV-Uoq8uZucedA"3600
TXT"_globalsign-domain-verification=ACPfWhyJfICRrjcCgN3Yzlv3l0HTsvdGjAAwpM9x4a"3600
TXT"_globalsign-domain-verification=Y5o_78XfoZh14L3nysmoHVnEgSZf_Rne5WLczwZxkf"3600
TXT"_globalsign-domain-verification=aoxXKJpb-zMGZWDefgoyMm6hAmxyWSmOpgKeNZ9ltp"3600
TXT"v=spf1 include:pgatour.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"3600

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 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