skysports.com

Checked 22 October 2026, 10:44 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 4 info

Registration

info

.com generic · MarkMonitor Inc. · expires 2027-12-13

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
MarkMonitor Inc.
Registered
10 June 1998
Last changed
30 July 2019
Expires
13 December 2027
Status
client delete prohibited, client transfer prohibited, client update prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.org, ns0.isp.sky.com, ns1.isp.sky.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 2027-12-13 #3
    The registration is valid until 2027-12-13 (416 days).
  • ✓ Transfer locked #4
    Registry status: client delete prohibited, client transfer prohibited, client update 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

edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.org, ns0.isp.sky.com, ns1.isp.sky.com

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.org, ns0.isp.sky.com, ns1.isp.sky.com
NS in the zone
edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.org, ns0.isp.sky.com, ns1.isp.sky.com
NameserverAddressesNetwork (AS)Glue
edns1.ultradns.biz204.74.67.1 2610:a1:1015::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns1.ultradns.com204.74.66.1 2001:502:f3ff::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US2001:502:f3ff::201 204.74.66.1
edns1.ultradns.net204.74.110.1 2610:a1:1014::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
edns1.ultradns.org204.74.111.1 2001:502:4612::201AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns0.isp.sky.com90.207.238.101AS5607 BSKYB-BROADBAND-AS - Sky UK Limited, GB90.207.238.101
ns1.isp.sky.com90.207.238.102AS5607 BSKYB-BROADBAND-AS - Sky UK Limited, GB90.207.238.102

Checks

  • ✓ 6 nameservers #6
    Delegated to edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.org, ns0.isp.sky.com, ns1.isp.sky.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 5 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 8 addresses; AS5607 (BSKYB-BROADBAND-AS - Sky UK Limited, GB): 2 addresses.
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .biz, .com, .net, .org.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns0.isp.sky.com, ns1.isp.sky.com.
    #13

Nameservers

info

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
edns1.ultradns.biz 204.74.67.1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.biz 2610:a1:1015::201NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.com 204.74.66.1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.com 2001:502:f3ff::201NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.net 204.74.110.1NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.net 2610:a1:1014::201NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.org 204.74.111.1NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns1.ultradns.org 2001:502:4612::201NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns0.isp.sky.com 90.207.238.101NOERROR, 19 ms, authoritativenoyes / yesrefusedunavailable
ns1.isp.sky.com 90.207.238.102NOERROR, 19 ms, authoritativenoyes / yesrefusedunavailable

Checks

  • ✓ All respond #14
    All 10 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: edns1.ultradns.biz: "UltraDNS Nameserver"; edns1.ultradns.com: "UltraDNS Nameserver"; edns1.ultradns.net: "UltraDNS Nameserver"; edns1.ultradns.org: "UltraDNS Nameserver"; ns0.isp.sky.com: "unavailable"; ns1.isp.sky.com: "unavailable".
    #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 2026092501 · primary ns0.isp.sky.com

Found

Primary (MNAME)
ns0.isp.sky.com
Contact (RNAME)
hostmaster.isp.sky.com
Serial
2026092501
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
edns1.ultradns.biz (204.74.67.1)2026092501
edns1.ultradns.biz (2610:a1:1015::201)2026092501
edns1.ultradns.com (204.74.66.1)2026092501
edns1.ultradns.com (2001:502:f3ff::201)2026092501
edns1.ultradns.net (204.74.110.1)2026092501
edns1.ultradns.net (2610:a1:1014::201)2026092501
edns1.ultradns.org (204.74.111.1)2026092501
edns1.ultradns.org (2001:502:4612::201)2026092501
ns0.isp.sky.com (90.207.238.101)2026092501
ns1.isp.sky.com (90.207.238.102)2026092501

Checks

  • ✓ Serial 2026092501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns0.isp.sky.com is one of the listed nameservers.
  • ✓ Contact hostmaster@isp.sky.com #25
    The SOA RNAME hostmaster.isp.sky.com means hostmaster@isp.sky.com.
  • ✓ Date-based serial #26
    The serial 2026092501 follows the YYYYMMDDnn convention (2026-09-25).

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

19 records at the apex

Found

Read from
204.74.67.1:53
TypeValueTTL
SOAns0.isp.sky.com. hostmaster.isp.sky.com. 2026092501 28800 7200 604800 360086400
NSns0.isp.sky.com.86400
NSns1.isp.sky.com.86400
NSedns1.ultradns.biz.86400
NSedns1.ultradns.com.86400
NSedns1.ultradns.net.86400
NSedns1.ultradns.org.86400
A90.216.128.586400
MX10 mxa-009f8f01.gslb.pphosted.com.86400
MX10 mxb-009f8f01.gslb.pphosted.com.86400
TXT"MS=ms1397149"86400
TXT"MS=ms29113798"86400
TXT"_1q12ohptoqewpiq3x1fpj481j0kxjfh"86400
TXT"_595cjaqv0ptl1epn8cb0fqfd1h5yhg0"86400
TXT"_ivhu14oz9ik5zojmdpp056twex81fnb"86400
TXT"nvq855c2s61ccr7kdcvlxsr4bgfxrbfk"86400
TXT"facebook-domain-verification=phqvh0owoaabipxxso35g8g4sre03d"86400
TXT"google-site-verification=GOYW3dDTVILq2EzOfny0XnNJb7RmRA_-4KZJro9hRic"86400
TXT"v=spf1 include:spf-009f8f01.pphosted.com ip4:90.216.128.251 ip4:90.216.128.250 ip4:90.216.144.251 ip4:90.216.144.250 include:de._netblocks.mimecast.com include:spf.protection.outlook.com -all"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, 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