ser02.dk

Records from scan: 2026-10-12 04:45:54 · 1795ms total · last checked 2026-10-17 13:38 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ser02.dk is a .dk domain served by 2 nameservers (elsa.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 20 November 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.90 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by ser02-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 40ms

Nameserver	IP addresses	PTR	ASN / ISP
elsa.ns.cloudflare.com	108.162.192.111 172.64.32.111 173.245.58.111 2606:4700:50::adf5:3a6f 2803:f800:50::6ca2:c06f 2a06:98c1:50::ac40:206f	elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
uriah.ns.cloudflare.com	108.162.195.194 162.159.44.194 172.64.35.194 2606:4700:58::a29f:2cc2 2803:f800:50::6ca2:c3c2 2a06:98c1:50::ac40:23c2	uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com uriah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.52.90	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.197.142	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ser02-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca21::a 2a01:111:f403:ca38::a 2a01:111:f403:ca48::e 52.101.209.28 52.101.68.21 52.101.68.8 52.101.73.120	mail-db7pr03cu00601.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:345a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:c58e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.52.90,172.67.197.142 ech=AEX+DQBBKwAgACC7vqx1GBHubgjSB9mof5/b9TeqDWyre+OE326hBl+GdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:345a,2606:4700:3033::ac43:c58e

🔌 SRV Records#

1 records 86ms

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

📝 TXT Records#

2 records 159ms

TXT Record
MS=ms53055797
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (ser02.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.ser02.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=25; rua=mailto:dmarc@dudez.dk; fo=1

📬 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#

checked 2026-10-12 04:45:54

www	104.21.52.90 172.67.197.142 2606:4700:3032::6815:345a 2606:4700:3033::ac43:c58e (AS13335) (address records, no CNAME)
www vs bare domain	Same network ser02.dk: 104.21.52.90 172.67.197.142 2606:4700:3032::6815:345a 2606:4700:3033::ac43:c58e (AS13335) www.ser02.dk: 104.21.52.90 172.67.197.142 2606:4700:3032::6815:345a 2606:4700:3033::ac43:c58e (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-ser02-dk._domainkey.viavidk.r-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-ser02-dk._domainkey.viavidk.r-v1.dkim.mail.microsoft	RSA · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

109ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

32ms

Field	Value
Serial	2417247206
Primary NS (MNAME)	elsa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 05:13:35

Field	Value
Registrar	GIGAHOST ApS
Registered	2008-11-20
Expires	2026-11-30 (43d)

🔗 Same registrant#

2 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
klatt.dk	GIGAHOST ApS
viavi.dk	GIGAHOST ApS

📋 WHOIS#

⏱️ Lookup Timing#

40ms

34ms

46ms

AAAA

38ms

TXT

159ms

CAA

52ms

HTTPS

39ms

TLSA

532ms

SOA

32ms

MTA-STS

51ms

DNSSEC

109ms

SRV

86ms

Total

1795ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 04:45:54 shown	1795ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-18 16:47:52	984ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-06 14:25:05	3138ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-31 16:19:14	3566ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-25 09:41:41	2393ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-19 03:50:56	1348ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 15:10:47	1478ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-26 09:39:29	1263ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 04:39:33	3187ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 03:55:22	1441ms	2 NS 2 A 1 MX	🔓 Insecure