polercenter.dk

Records from scan: 2026-10-07 20:49:47 · 1381ms total · last checked 2026-10-17 10:36 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

polercenter.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 11 February 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.251.4.112 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by polercenter-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. 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 46ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.251.4.112	3600s	web1.bilinfo.dk	AS48854	team.blue Denmark A/S	178.251.0.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	polercenter-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::e 2a01:111:f403:ca48::12 2a01:111:f403:ca48::e 52.101.181.156 52.101.185.24 52.101.68.25 52.101.91.162	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 56ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 157ms

TXT Record
f5hsv9jpb3h4m9buukjnnrompj

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-07 20:49:47

www	178.251.4.112 (AS48854) (address records, no CNAME)
www vs bare domain	Same network polercenter.dk: 178.251.4.112 (AS48854) www.polercenter.dk: 178.251.4.112 (AS48854)
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
s1	s1.domainkey.u13060478.wl229.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u13060478.wl229.sendgrid.net	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

117ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2026100701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-07 21:26:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-02-11
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

44ms

35ms

AAAA

36ms

TXT

157ms

CAA

39ms

HTTPS

42ms

TLSA

718ms

SOA

34ms

MTA-STS

51ms

DNSSEC

117ms

SRV

56ms

Total

1381ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 20:49:47 shown	1381ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 17:26:25	895ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-07 06:42:01	966ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 17:08:31	764ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 09:42:35	972ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 04:59:12	1077ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 11:14:20	6275ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 15:17:04	2934ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 06:20:13	5825ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 13:25:35	1157ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 23:25:48	1743ms	2 NS 1 A 1 MX	🔒 Secure