xmission.com

Checked 22 October 2026, 11:35 UTC · via 8.8.8.8
!Passed with warnings
26 passed 2 warnings 0 failed 3 info

Registration

info

.com generic · Tucows Domains Inc. · expires 2027-03-26

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
Tucows Domains Inc.
Registered
25 March 1994
Last changed
25 February 2026
Expires
26 March 2027
Status
client transfer prohibited, client update prohibited
Registry nameservers
ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.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 2027-03-26 #3
    The registration is valid until 2027-03-26 (154 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

info

ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.com
NS in the zone
ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.com
NameserverAddressesNetwork (AS)Glue
ns.xmission.com166.70.254.2 2607:fa18::11AS6315 XMISSION - XMission, L.C., US AS6315 XMISSION - XMission, L.C., US166.70.254.2 2607:fa18::11
ns1.xmission.com204.228.159.2 2607:fa18:0:a::aAS6315 XMISSION - XMission, L.C., US AS6315 XMISSION - XMission, L.C., US204.228.159.2 2607:fa18:0:a::a
ns2.xmission.com207.115.80.155 2001:560:4403:ca5c:aded:beef:deba:c1eAS18530 ISOMEDIA-1 - Isomedia, Inc., US AS18530 ISOMEDIA-1 - Isomedia, Inc., US2001:560:4403:ca5c:aded:beef:deba:c1e 207.115.80.155
ns3.xmission.com178.104.102.15 2a01:4f8:1c18:23d7::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE178.104.102.15 2a01:4f8:1c18:23d7::1

Checks

  • ✓ 4 nameservers #6
    Delegated to ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.com.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns.xmission.com, ns1.xmission.com, ns2.xmission.com, ns3.xmission.com.
  • ✓ 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 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS18530 (ISOMEDIA-1 - Isomedia, Inc., US): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS6315 (XMISSION - XMission, L.C., US): 4 addresses.
  • 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

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.xmission.com 166.70.254.2NOERROR, 145 ms, authoritativenoyes / yesrefused9.18.30-0ubuntu0.24.04.1-Ubuntu
ns.xmission.com 2607:fa18::11NOERROR, 169 ms, authoritativenoyes / yesrefused9.18.30-0ubuntu0.24.04.1-Ubuntu
ns1.xmission.com 204.228.159.2NOERROR, 144 ms, authoritativenoyes / yesrefused9.18.30-0ubuntu0.22.04.2-Ubuntu
ns1.xmission.com 2607:fa18:0:a::aNOERROR, 170 ms, authoritativenoyes / yesrefused9.18.30-0ubuntu0.22.04.2-Ubuntu
ns2.xmission.com 207.115.80.155NOERROR, 164 ms, authoritativenoyes / yesrefused9.18.18-0ubuntu0.22.04.2-Ubuntu
ns2.xmission.com 2001:560:4403:ca5c:aded:beef:deba:c1eNOERROR, 147 ms, authoritativenoyes / yesrefused9.18.18-0ubuntu0.22.04.2-Ubuntu
ns3.xmission.com 178.104.102.15NOERROR, 3 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian
ns3.xmission.com 2a01:4f8:1c18:23d7::1NOERROR, 3 ms, authoritativenoyes / yesrefused9.20.30-1~deb13u1-Debian

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns.xmission.com: "9.18.30-0ubuntu0.24.04.1-Ubuntu"; ns1.xmission.com: "9.18.30-0ubuntu0.22.04.2-Ubuntu"; ns2.xmission.com: "9.18.18-0ubuntu0.22.04.2-Ubuntu"; ns3.xmission.com: "9.20.30-1~deb13u1-Debian". 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 2026101501 · primary ns.xmission.com

Found

Primary (MNAME)
ns.xmission.com
Contact (RNAME)
domains.xmission.com
Serial
2026101501
Refresh / retry
10800 s / 900 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns.xmission.com (166.70.254.2)2026101501
ns.xmission.com (2607:fa18::11)2026101501
ns1.xmission.com (204.228.159.2)2026101501
ns1.xmission.com (2607:fa18:0:a::a)2026101501
ns2.xmission.com (207.115.80.155)2026101501
ns2.xmission.com (2001:560:4403:ca5c:aded:beef:deba:c1e)2026101501
ns3.xmission.com (178.104.102.15)2026101501
ns3.xmission.com (2a01:4f8:1c18:23d7::1)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 15m, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.xmission.com is one of the listed nameservers.
  • ✓ Contact domains@xmission.com #25
    The SOA RNAME domains.xmission.com means domains@xmission.com.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

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

13 records at the apex

Found

Read from
166.70.254.2:53
TypeValueTTL
SOAns.xmission.com. domains.xmission.com. 2026101501 10800 900 604800 864003600
NSns1.xmission.com.3600
NSns3.xmission.com.3600
NSns.xmission.com.3600
NSns2.xmission.com.3600
A198.60.22.43600
AAAA2607:fa18:0:3::43600
MX10 mx.xmission.com.3600
TXT"apple-domain-verification=gEJ8leOrHi6EwFvE"3600
TXT"amazon-business-verification=f7cabb50c4712768a96d6d0a8daf8d6624d8deed3d8b826e7b26cfa46b0ea83c"3600
TXT"apple-domain-verification=ltaiq8HnS4t65C4f"3600
TXT"rippling-domain-verification=fabdf50bd33a58e6"3600
TXT"v=spf1 a mx include:_spf.xmission.com include:zcsend.net ~all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 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.
  • ✓ 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