stackstaging.com

Checked 22 October 2026, 10:51 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 0 failed 6 info

Registration

info

.com generic · Tucows Domains Inc. · expires 2028-02-12

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Tucows Domains Inc.
Registered
12 February 2016
Last changed
18 January 2019
Expires
12 February 2028
Status
client transfer prohibited, client update prohibited
Registry nameservers
ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.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 2028-02-12 #3
    The registration is valid until 2028-02-12 (477 days).
  • ✓ Transfer locked #4
    Registry status: client transfer prohibited, client update prohibited.
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com
NS in the zone
ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.com
NameserverAddressesNetwork (AS)Glue
ns1.stackdns.com35.197.225.59AS396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US35.197.225.59
ns2.stackdns.com146.148.28.88AS396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US146.148.28.88
ns3.stackdns.com35.198.79.191AS396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US35.198.79.191
ns4.stackdns.com104.196.137.209AS396982 GOOGLE-CLOUD-PLATFORM - Google LLC, US104.196.137.209

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.stackdns.com, ns2.stackdns.com, ns3.stackdns.com, ns4.stackdns.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 4 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS396982 (GOOGLE-CLOUD-PLATFORM - Google 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
  • 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

info

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.stackdns.com 35.197.225.59NOERROR, 19 ms, authoritativenoyes / yesrefusedStackDNS
ns2.stackdns.com 146.148.28.88NOERROR, 14 ms, authoritativenoyes / yesrefusedStackDNS
ns3.stackdns.com 35.198.79.191NOERROR, 4 ms, authoritativenoyes / yesrefusedStackDNS
ns4.stackdns.com 104.196.137.209NOERROR, 108 ms, authoritativenoyes / yesrefusedStackDNS

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: ns1.stackdns.com: "StackDNS"; ns2.stackdns.com: "StackDNS"; ns3.stackdns.com: "StackDNS"; ns4.stackdns.com: "StackDNS".
    #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 1753258792 · primary ns1.stackdns.com

Found

Primary (MNAME)
ns1.stackdns.com
Contact (RNAME)
hostmaster.stackdns.com
Serial
1753258792
Refresh / retry
1800 s / 900 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.stackdns.com (35.197.225.59)1753258792
ns2.stackdns.com (146.148.28.88)1753258792
ns3.stackdns.com (35.198.79.191)1753258792
ns4.stackdns.com (104.196.137.209)1753258792

Checks

  • ✓ Serial 1753258792 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 30m, retry 15m, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.stackdns.com is one of the listed nameservers.
  • ✓ Contact hostmaster@stackdns.com #25
    The SOA RNAME hostmaster.stackdns.com means hostmaster@stackdns.com.
  • ✓ Timestamp serial #26
    The serial 1753258792 is a Unix timestamp (2025-07-23 08:19 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

11 records at the apex

Found

Read from
35.197.225.59:53
TypeValueTTL
SOAns1.stackdns.com. hostmaster.stackdns.com. 1753258792 1800 900 1209600 3003600
NSns4.stackdns.com.3600
NSns3.stackdns.com.3600
NSns1.stackdns.com.3600
NSns2.stackdns.com.3600
A45.8.227.973600
MX10 stackstaging-com.mail.protection.outlook.com.3600
TXT"google-site-verification=QUiZq-SHE-g78jbBdez4Suk3ksusaYpcfZqVnNJAJrw"3600
TXT"MS=ms73155339"3600
TXT"v=spf1 include:spf.protection.outlook.com -all"3600
TXT"vkkpkqr40kcy6mmmbttc18qzj3w4bfn6"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1h. The NS TTL at the parent is 2d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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