3.dk

📜 Historical scan 2026-09-30 21:18:42 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

3.dk is a .dk domain served by 5 nameservers (nordic1.dnsnode.net, ns.hi3gaccess.se, ns2.hi3gaccess.se and 2 more). It was registered on 12 February 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.251.200.7 is hosted by Hi3G Access AB (AS44034) in Sweden. Mail is handled by 3-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

5 records 134ms

Nameserver	IP addresses	PTR	ASN / ISP
nordic1.dnsnode.net	194.58.192.32 2a01:3f1:32::53	nordic1.dnsnode.net nordic1.dnsnode.net	AS8674 Netnod AB AS8674 Netnod AB
ns.hi3gaccess.se	2a02:aa0::53 80.251.192.244	ns.hi3gaccess.se ns.hi3gaccess.se	AS44034 Hi3G Access AB AS44034 Hi3G Access AB
ns2.hi3gaccess.se	2a02:aa0::54 80.251.192.245	ns2.hi3gaccess.se ns2.hi3gaccess.se	AS44034 Hi3G Access AB AS44034 Hi3G Access AB
nsp.dnsnode.net	194.58.198.32 2a01:3f1:3032::53	nsp.dnsnode.net nsp.dnsnode.net	AS56908 Netnod AB AS56908 Netnod AB
nsu.dnsnode.net	185.42.137.98 2a01:3f0:400::32	nsu.dnsnode.net nsu.dnsnode.net	AS8674 Netnod AB AS8674 Netnod AB

🌍 A Records#

1 records 221ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.251.200.7	1200s	—	AS44034	Hi3G Access AB	80.251.192.0/20	🇸🇪 Sweden	—

📧 MX Records#

1 records 165ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	1200s	3-dk.mail.protection.outlook.com	52.101.103.143 52.101.68.12 52.101.68.21 52.101.68.27	mail-miypr03cu00107.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

1 records 155ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:aa0:28:a000::1007	1200s	—	AS44034	Hi3G Access AB	2a02:aa0:0:0:0:0:0:0/29	🇸🇪 Sweden	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 237ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	1	100	5061	sipfed.online.lync.com

📝 TXT Records#

14 records 995ms

TXT Record
_globalsign-domain-verification=cqlYpH-3SEvEaeBBqYUS2TJxESeGuAde4Bkz9Q6BWm
_globalsign-domain-verification=mlAxLm6JFK9OW1oyvrUvmgCj95UxKwWIbnFUekS539
5fb947cb2179b58ffd40c5a0ce70b185
apple-domain-verification=zlzQX3WzSPoB5bdb
atlassian-domain-verification=o4csc1WKjoKEjrsM02aT6FMwidzL27XSAETY7nEbAt064n2hvccURky5FuSWD0Ke
facebook-domain-verification=k5obuarcoyxeui72y7mflbwjzoz8rn
formstack-domain-verification=694905420d591e8a7c539e0e3aa036ab
google-site-verification=7TzpNgr8YIhz0GceYdbm5Q6OeBuO3i31MxXDgeazCvY
lovable_verification=9c64b203b253890d7659fd8fec9751270663ce04775b1353d9143134796be30d
MS=ms50317184
SFMC-HYKNykp5F8ay9Lac5K0fm6T-tD9pLZkmLjUqwnui
T75N7A2LgfvCDezObrcB4b63vACNbdUzpxjF54MivW1BAab7NsA0UJgInGKe7Jy2K5KHKE5vYny9piOwP2joTA==
tiktok-developers-site-verification=tMi4uKRaMOkfFxDjr3TTHVb3Qm0FgQ4W
v=spf1 ip4:88.131.62.128/25 ip4:91.213.250.0/24 ip4:81.201.223.53 ip4:80.251.192.0/24 ip4:80.251.200.196 ip4:217.114.80.100 ip4:217.114.90.54 ip4:217.151.195.236 ip4:217.151.196.0/24 ip4:195.159.135.24 ip4:80.251.200.199 ip4:94.246.98.0/24 ip6:2a02:aa0:0:1c::/64 ip4:213.115.225.0/24 include:spf.protection.outlook.com ip4:213.180.71.12 ip4:89.107.215.25 ip4:213.180.71.108 ip4:217.145.49.38 ip4:217.145.53.131 include:authsmtp.com include:spf.d4sp.com ip4:185.136.64.128/27 ip4:185.136.65.128/27 include:web.shared.mysmtp.com include:mail.zendesk.com -all

✉️ SPF#

Policy	Record (3.dk)
-all (hard fail)	v=spf1 ip4:88.131.62.128/25 ip4:91.213.250.0/24 ip4:81.201.223.53 ip4:80.251.192.0/24 ip4:80.251.200.196 ip4:217.114.80.100 ip4:217.114.90.54 ip4:217.151.195.236 ip4:217.151.196.0/24 ip4:195.159.135.24 ip4:80.251.200.199 ip4:94.246.98.0/24 ip6:2a02:aa0:0:1c::/64 ip4:213.115.225.0/24 include:spf.protection.outlook.com ip4:213.180.71.12 ip4:89.107.215.25 ip4:213.180.71.108 ip4:217.145.49.38 ip4:217.145.53.131 include:authsmtp.com include:spf.d4sp.com ip4:185.136.64.128/27 ip4:185.136.65.128/27 include:web.shared.mysmtp.com include:mail.zendesk.com -all

Policy

Record (3.dk)

-all (hard fail)

v=spf1 ip4:88.131.62.128/25 ip4:91.213.250.0/24 ip4:81.201.223.53 ip4:80.251.192.0/24 ip4:80.251.200.196 ip4:217.114.80.100 ip4:217.114.90.54 ip4:217.151.195.236 ip4:217.151.196.0/24 ip4:195.159.135.24 ip4:80.251.200.199 ip4:94.246.98.0/24 ip6:2a02:aa0:0:1c::/64 ip4:213.115.225.0/24 include:spf.protection.outlook.com ip4:213.180.71.12 ip4:89.107.215.25 ip4:213.180.71.108 ip4:217.145.49.38 ip4:217.145.53.131 include:authsmtp.com include:spf.d4sp.com ip4:185.136.64.128/27 ip4:185.136.65.128/27 include:web.shared.mysmtp.com include:mail.zendesk.com -all

📨 DMARC#

Policy	Record (_dmarc.3.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dkim@3.dk,mailto:rua-tre-se@axians.se; ruf=mailto:dkim@3.dk; sp=none

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-15 21:43:05

www CNAME	hi3gfdprod3dk-h5e6bffhffbyhrg9.a03.azurefd.net (all on azurefd.net) → 150.171.109.193 2603:1061:14:c1::1 (AS8075)
www vs bare domain	Different networks 3.dk: 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) www.3.dk: 150.171.109.193 2603:1061:14:c1::1 (AS8075) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-3-dk._domainkey.3online.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-3-dk._domainkey.3online.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF
info Record is 556 bytes: long SPF records risk UDP truncation

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

361ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

166ms

Field	Value
Serial	2026093000
Primary NS (MNAME)	ns.hi3gaccess.se
Responsible (RNAME)	hostmaster@tre.se
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-11 15:41:11

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	1997-02-12
Expires	2027-03-31 (165d)

🔗 Same registrant#

13 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
3business.dk	CSC Digital Brand Service, Inc
3iot.dk	CSC Digital Brand Service, Inc
3mail.dk	CSC Digital Brand Service, Inc
3shop.dk	CSC Digital Brand Service, Inc
3view.dk	CSC Digital Brand Service, Inc
3webshop.dk	CSC Digital Brand Service, Inc
business3.dk	CSC Digital Brand Service, Inc
fremtidensbusiness.dk	CSC Digital Brand Service, Inc
hi3gdenmark.dk	CSC Digital Brand Service, Inc
mit3.dk	CSC Digital Brand Service, Inc
mitoister.dk	CSC Digital Brand Service, Inc
oister.dk	CSC Digital Brand Service, Inc
tre.dk	CSC Digital Brand Service, Inc

📋 WHOIS#

⏱️ Lookup Timing#

134ms

221ms

165ms

AAAA

155ms

TXT

995ms

CAA

141ms

HTTPS

111ms

TLSA

1466ms

SOA

166ms

MTA-STS

159ms

DNSSEC

361ms

SRV

237ms

Total

4321ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 21:43:05	1407ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-14 20:39:33	5990ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-13 19:34:12	1346ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-12 18:44:36	1363ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-11 16:25:16	2143ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-10 12:58:54	2548ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-09 11:41:11	1294ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-08 09:50:56	1310ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-07 09:47:53	2036ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-06 06:24:31	3263ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-05 05:51:00	3427ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-04 05:44:49	1304ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-03 05:40:50	1648ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-02 05:39:57	1240ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-01 05:30:32	1540ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-30 21:18:42 shown	4321ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-29 20:57:09	1029ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-28 20:44:28	1270ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-27 20:32:12	2209ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-26 20:24:46	1683ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-25 20:06:47	9595ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-24 23:36:17	907ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-23 22:58:54	1541ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-22 15:32:35	996ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-19 20:41:10	3977ms	5 NS 1 A 1 MX	🔓 Insecure