telia.com

Checked 22 October 2026, 11:01 UTC · via 8.8.8.8
!Passed with warnings
25 passed 3 warnings 0 failed 3 info

Registration

info

.com generic · CSC Corporate Domains, Inc. · expires 2027-08-18

Found

TLD
.com (generic)
ICANN policies apply
yes
Registrar
CSC Corporate Domains, Inc.
Registered
19 August 1995
Last changed
14 August 2026
Expires
18 August 2027
Status
client transfer prohibited, server delete prohibited, server transfer prohibited, server update prohibited
Registry nameservers
dns1.telia.com, dns2.telia.com, dns358.fi.telia.net, dns49.de.telia.net
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 2027-08-18 #3
    The registration is valid until 2027-08-18 (299 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

dns1.telia.com, dns2.telia.com, dns358.fi.telia.net, dns49.de.telia.net

Found

Parent zone
com
Delegation from
a.gtld-servers.net (192.5.6.30)
NS at the parent
dns1.telia.com, dns2.telia.com, dns358.fi.telia.net, dns49.de.telia.net
NS in the zone
dns1.telia.com, dns2.telia.com, dns358.fi.telia.net, dns49.de.telia.net
NameserverAddressesNetwork (AS)Glue
dns1.telia.com81.228.11.67 2001:2040:c001:101::5AS3301 TELIANET-SWEDEN - Telia Company AB, SE AS3301 TELIANET-SWEDEN - Telia Company AB, SE81.228.11.67
dns2.telia.com81.228.10.67 2001:2040:c001:401::6AS3301 TELIANET-SWEDEN - Telia Company AB, SE AS3301 TELIANET-SWEDEN - Telia Company AB, SE81.228.10.67
dns358.fi.telia.net88.194.40.67AS1759 TSF-IP-Core - Telia Finland Oyj, FI-
dns49.de.telia.net213.248.77.82 2001:2030:c000:5::4AS1299 TWELVE99 - Arelion Sweden AB, SE AS1299 TWELVE99 - Arelion Sweden AB, SE-

Checks

  • ✓ 4 nameservers #6
    Delegated to dns1.telia.com, dns2.telia.com, dns358.fi.telia.net, dns49.de.telia.net.
  • ✓ 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: dns1.telia.com (glue 81.228.11.67, zone 81.228.11.67, 2001:2040:c001:101::5); dns2.telia.com (glue 81.228.10.67, zone 81.228.10.67, 2001:2040:c001:401::6). Update the glue at your registrar.
    #8
  • ✓ 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 2 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS1299 (TWELVE99 - Arelion Sweden AB, SE): 2 addresses; AS1759 (TSF-IP-Core - Telia Finland Oyj, FI): 1 address; AS3301 (TELIANET-SWEDEN - Telia Company AB, SE): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: dns358.fi.telia.net.
    #13

Nameservers

warn

7 of 7 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.telia.com 81.228.11.67NOERROR, 28 ms, authoritativenoyes / yesrefused9.20.29
dns1.telia.com 2001:2040:c001:101::5NOERROR, 25 ms, authoritativenoyes / yesrefused9.20.29
dns2.telia.com 81.228.10.67NOERROR, 20 ms, authoritativenoyes / yesrefused9.20.29
dns2.telia.com 2001:2040:c001:401::6NOERROR, 20 ms, authoritativenoyes / yesrefused9.20.29
dns358.fi.telia.net 88.194.40.67NOERROR, 33 ms, authoritativenoyes / yesrefused9.20.29
dns49.de.telia.net 213.248.77.82NOERROR, 4 ms, authoritativenoyes / yesrefused9.20.29
dns49.de.telia.net 2001:2030:c000:5::4NOERROR, 4 ms, authoritativenoyes / yesrefused9.20.29

Checks

  • ✓ All respond #14
    All 7 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: dns1.telia.com: "9.20.29"; dns2.telia.com: "9.20.29"; dns358.fi.telia.net: "9.20.29"; dns49.de.telia.net: "9.20.29". 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 2026102101 · primary dns1.telia.com

Found

Primary (MNAME)
dns1.telia.com
Contact (RNAME)
backbone.telia.net
Serial
2026102101
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
dns1.telia.com (81.228.11.67)2026102101
dns1.telia.com (2001:2040:c001:101::5)2026102101
dns2.telia.com (81.228.10.67)2026102101
dns2.telia.com (2001:2040:c001:401::6)2026102101
dns358.fi.telia.net (88.194.40.67)2026102101
dns49.de.telia.net (213.248.77.82)2026102101
dns49.de.telia.net (2001:2030:c000:5::4)2026102101

Checks

  • ✓ Serial 2026102101 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns1.telia.com is one of the listed nameservers.
  • ✓ Contact backbone@telia.net #25
    The SOA RNAME backbone.telia.net means backbone@telia.net.
  • ✓ Date-based serial #26
    The serial 2026102101 follows the YYYYMMDDnn convention (2026-10-21).

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

9 records at the apex

Found

Read from
81.228.11.67:53
TypeValueTTL
SOAdns1.telia.com. backbone.telia.net. 2026102101 10800 3600 604800 36003600
NSdns49.de.telia.net.3600
NSdns1.telia.com.3600
NSdns2.telia.com.3600
NSdns358.fi.telia.net.3600
A81.236.63.1623600
MX1 mail.telia.com.3600
TXT"google-site-verification=N48W5sPvXvxEYWSkDntnCoh-AILPmA-IP56QBvYHAmU"3600
TXT"v=spf1 ip4:81.236.60.128/26 ip4:81.236.60.192/28 ip4:81.236.57.0/24 ip4:81.227.116.64/26 ip4:81.236.55.0/24 ~all"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.
  • ✓ 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