yellowpages.com

Checked 22 October 2026, 11:40 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 2027-08-01

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
5 April 1996
Last changed
28 July 2026
Expires
1 August 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
ns1.thryvinc-ns.com, ns2.thryvinc-ns.com, ns3.thryvinc-ns.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 2027-08-01 #3
    The registration is valid until 2027-08-01 (282 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

warn

ns1.thryvinc-ns.com, ns2.thryvinc-ns.com, ns3.thryvinc-ns.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.thryvinc-ns.com, ns2.thryvinc-ns.com, ns3.thryvinc-ns.com
NS in the zone
ns1.thryvinc-ns.com, ns2.thryvinc-ns.com, ns3.thryvinc-ns.com
NameserverAddressesNetwork (AS)Glue
ns1.thryvinc-ns.com198.41.222.155 2400:cb00:2049:1::c629:de9bAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US198.41.222.155
ns2.thryvinc-ns.com162.159.10.178 2400:cb00:2049:1::a29f:ab2AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.10.178
ns3.thryvinc-ns.com162.159.11.220 2400:cb00:2049:1::a29f:bdcAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US162.159.11.220

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.thryvinc-ns.com, ns2.thryvinc-ns.com, ns3.thryvinc-ns.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.thryvinc-ns.com (glue 198.41.222.155, zone 198.41.222.155, 2400:cb00:2049:1::c629:de9b); ns2.thryvinc-ns.com (glue 162.159.10.178, zone 162.159.10.178, 2400:cb00:2049:1::a29f:ab2); ns3.thryvinc-ns.com (glue 162.159.11.220, zone 162.159.11.220, 2400:cb00:2049:1::a29f:bdc). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2400:cb00:2049::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 6 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

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.thryvinc-ns.com 198.41.222.155NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
ns1.thryvinc-ns.com 2400:cb00:2049:1::c629:de9bNOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
ns2.thryvinc-ns.com 162.159.10.178NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ns2.thryvinc-ns.com 2400:cb00:2049:1::a29f:ab2NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ns3.thryvinc-ns.com 162.159.11.220NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ns3.thryvinc-ns.com 2400:cb00:2049:1::a29f:bdcNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 6 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.thryvinc-ns.com: "2026.10.2"; ns2.thryvinc-ns.com: "2026.10.2"; ns3.thryvinc-ns.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 2009049301 · primary ns1.thryvinc-ns.com

Found

Primary (MNAME)
ns1.thryvinc-ns.com
Contact (RNAME)
dnsadmin.supermedia.com
Serial
2009049301
Refresh / retry
10800 s / 3600 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.thryvinc-ns.com (198.41.222.155)2009049301
ns1.thryvinc-ns.com (2400:cb00:2049:1::c629:de9b)2009049301
ns2.thryvinc-ns.com (162.159.10.178)2009049301
ns2.thryvinc-ns.com (2400:cb00:2049:1::a29f:ab2)2009049301
ns3.thryvinc-ns.com (162.159.11.220)2009049301
ns3.thryvinc-ns.com (2400:cb00:2049:1::a29f:bdc)2009049301

Checks

  • ✓ Serial 2009049301 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 28d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.thryvinc-ns.com is one of the listed nameservers.
  • ✓ Contact dnsadmin@supermedia.com #25
    The SOA RNAME dnsadmin.supermedia.com means dnsadmin@supermedia.com.
  • ✓ Timestamp serial #26
    The serial 2009049301 is a Unix timestamp (2033-08-30 21:15 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

info

18 records at the apex

Found

Read from
198.41.222.155:53
TypeValueTTL
SOAns1.thryvinc-ns.com. dnsadmin.supermedia.com. 2009049301 10800 3600 2419200 300300
NSns3.thryvinc-ns.com.28800
NSns1.thryvinc-ns.com.28800
NSns2.thryvinc-ns.com.28800
A172.64.150.161300
A104.18.37.95300
MX10 yellowpages-com.mail.protection.outlook.com.28800
MX20 yellowpages-com.mail.protection.outlook.com.28800
TXT"5Ygf/X5Mb0W8Y9hE45bSbZuc441tyi/djcNQgfxT7/2Cil39njvmi+3oYO4gdTT3ggeTUaLq5+MjzQTFoLLmug=="300
TXT"6ghg78mzlz1mh4ds3qcqc0stxgw7fd4p"300
TXT"_68hnpz6sj7doao0vrqauwf62pwjy0c2"300
TXT"_gn2pxehwkj24crk6479vkvqvvefi22o"300
TXT"_tt33d72s66ijpikpwwp6bqi2o6zx5mr"300
TXT"dwm1qlz7y3p2br0gvvd483157nwl84q5"300
TXT"f6qd7r1h82zt7nz2tjj9ss9ctykrbs2j"300
TXT"google-site-verification=Bqe0tbT2Ws2O90cwxZjQY9lIZJDfvJJxJ9HY9_hVePw"300
TXT"ppr4kdch1wjp9jrdf4qcw831zsg2myqn"300
TXT"v=spf1 include:spf.protection.outlook.com include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 8h, NS 8h. The NS TTL at the parent is 2d and in the zone 8h; resolvers may use either.
  • ✓ 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