vispero.com

Checked 22 October 2026, 11:22 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.com generic · Cloudflare, Inc. · expires 2029-02-15

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Cloudflare, Inc.
Registered
15 February 2013
Last changed
6 June 2026
Expires
15 February 2029
Status
client transfer prohibited
Registry nameservers
jose.ns.cloudflare.com, sandra.ns.cloudflare.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 2029-02-15 #3
    The registration is valid until 2029-02-15 (847 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

jose.ns.cloudflare.com, sandra.ns.cloudflare.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
jose.ns.cloudflare.com, sandra.ns.cloudflare.com
NS in the zone
jose.ns.cloudflare.com, sandra.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
jose.ns.cloudflare.com172.64.35.88 108.162.195.88 162.159.44.88 2606:4700:58::a29f:2c58 2803:f800:50::6ca2:c358 2a06:98c1:50::ac40:2358AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.195.88 162.159.44.88 172.64.35.88 2606:4700:58::a29f:2c58 2803:f800:50::6ca2:c358 2a06:98c1:50::ac40:2358
sandra.ns.cloudflare.com162.159.38.34 108.162.194.34 172.64.34.34 2606:4700:50::a29f:2622 2803:f800:50::6ca2:c222 2a06:98c1:50::ac40:2222AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US108.162.194.34 162.159.38.34 172.64.34.34 2606:4700:50::a29f:2622 2803:f800:50::6ca2:c222 2a06:98c1:50::ac40:2222

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: jose.ns.cloudflare.com, sandra.ns.cloudflare.com.
    #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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
jose.ns.cloudflare.com 172.64.35.88NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
jose.ns.cloudflare.com 108.162.195.88NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
jose.ns.cloudflare.com 162.159.44.88NOERROR, 34 ms, authoritativenoyes / yesrefused2026.10.2
jose.ns.cloudflare.com 2606:4700:58::a29f:2c58NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
jose.ns.cloudflare.com 2803:f800:50::6ca2:c358NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
jose.ns.cloudflare.com 2a06:98c1:50::ac40:2358NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 162.159.38.34NOERROR, 34 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 108.162.194.34NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 172.64.34.34NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 2606:4700:50::a29f:2622NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 2803:f800:50::6ca2:c222NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2
sandra.ns.cloudflare.com 2a06:98c1:50::ac40:2222NOERROR, 19 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: jose.ns.cloudflare.com: "2026.10.2"; sandra.ns.cloudflare.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 2417491937 · primary jose.ns.cloudflare.com

Found

Primary (MNAME)
jose.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417491937
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
jose.ns.cloudflare.com (172.64.35.88)2417491937
jose.ns.cloudflare.com (108.162.195.88)2417491937
jose.ns.cloudflare.com (162.159.44.88)2417491937
jose.ns.cloudflare.com (2606:4700:58::a29f:2c58)2417491937
jose.ns.cloudflare.com (2803:f800:50::6ca2:c358)2417491937
jose.ns.cloudflare.com (2a06:98c1:50::ac40:2358)2417491937
sandra.ns.cloudflare.com (162.159.38.34)2417491937
sandra.ns.cloudflare.com (108.162.194.34)2417491937
sandra.ns.cloudflare.com (172.64.34.34)2417491937
sandra.ns.cloudflare.com (2606:4700:50::a29f:2622)2417491937
sandra.ns.cloudflare.com (2803:f800:50::6ca2:c222)2417491937
sandra.ns.cloudflare.com (2a06:98c1:50::ac40:2222)2417491937

Checks

  • ✓ Serial 2417491937 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver jose.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417491937 is a Unix timestamp (2046-08-10 05:32 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

34 records at the apex

Found

Read from
172.64.35.88:53
TypeValueTTL
SOAjose.ns.cloudflare.com. dns.cloudflare.com. 2417491937 10000 2400 604800 18001800
NSjose.ns.cloudflare.com.86400
NSsandra.ns.cloudflare.com.86400
A188.114.97.2300
A188.114.96.2300
AAAA2a06:98c1:3120::2300
AAAA2a06:98c1:3121::2300
MX10 vispero-com.mail.protection.outlook.com.300
TXT"52rwij8k8x"300
TXT"EVuSqi77gLRDQkFGEvgGq5ESGxd/fCsED1/dsaijtq4buuigeA7dA5TGWMibKJBGy7TVGyGLp1vDtqDPdVNIrg=="300
TXT"MS=ms57845256"300
TXT"MS=ms62038870"300
TXT"ZOOM_verify_XpDW3GK6oLOuFrnYPdHl3A"300
TXT"anthropic-domain-verification-qz1p7h=EhRC4yXIwdD1VtHchy8zlCCyW"300
TXT"apple-domain-verification=pWuHrKsnmsU747kj"300
TXT"atlassian-domain-verification=16gWpMw7tlcrzJhu3jk2e6SMZcoMqkWIFq6407AWAONPmyTHvZXn6VRaeqo/d9Xa"300
TXT"atlassian-domain-verification=UryGGEeebyJHJDgiur0DbojmfQYgse7R32TI9VxTKl8eNVHYfiqE/wkta2yKV3Zp"300
TXT"atlassian-domain-verification=nissEhmC4B6UKISCFHC58cg1wFkCxB9PpFTX/GtI7ku3ALbBlxJ6bWojywVttwRX"300
TXT"atlassian-sending-domain-verification=951a907d-f38e-476f-a4e0-9d959d621902"300
TXT"brevo-code:3cac3002e373301dd4c94d017d8e95da"300
TXT"cloudflare_dashboard_sso=9327a62624f3e8ed0e4f3d11017d9fac"300
TXT"docusign=9e395988-086a-4512-a045-1ac76c47d03e"300
TXT"google-site-verification=-vEhhCx2nE2cPLtapDkxT9Gy7b-BHHHDWG8kWnLlNIs"300
TXT"google-site-verification=2exJw3UU4Jvl8KUGBhNfVtVD3KRAc_nmVBBtVNeqsZw"300
TXT"google-site-verification=IGMBdu0suFTYC01GIRcui01-HQl-BweXF7j04KbYw6w"300
TXT"knowbe4-site-verification=27c87bc44e473fb8ef6ee019df0078dd"300
TXT"launchdarkly-domain-verification=68de5d90-49c5-4965-a39c-ae71eaad83dd"300
TXT"miro-verification=7e0cc01700b9379d9510844958e3921d9becf13c"300
TXT"openai-domain-verification=dv-spFP8Ad0wE3gFeUeyhpvE5v2"300
TXT"remote-domain-verification=69f7eeda-af7e-4e6d-b1b7-e6f2503797fe"300
TXT"shopify-verification-code=0MiQ57ySotVqvgMwb6mDaScumxL94R"300
TXT"slack-domain-verification=dCnoUtvIDBgOn1gyHhLgyrLe15lwaJIizVRilOhO"300
TXT"stripe-verification=B48DF4186519AADBBF94947C392367137BFCF26B74C2AEECFEF1B0E718C51697"300
TXT"v=spf1 ip4:149.137.238.166 ip4:149.137.238.175 ip4:149.137.238.169 ip4:208.75.120.0/22 ip4:149.137.238.132 ip4:162.212.190.31 include:spf.protection.outlook.com include:spf.transsmart.com include:_spf.salesforce.com include:sendgrid.net include:shops.sh" "opify.com include:4793141.spf04.hubspotemail.net include:_spf.shared.lvl.li include:relay.mailchannels.net ~all"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, NS 1d. The NS TTL at the parent is 2d and in the zone 1d; 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