isib.dk

📜 Historical scan 2026-08-18 14:19:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

isib.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 22 January 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.236.62.147 is hosted by Google LLC (AS396982) in United States. Mail is handled by isib-dk.mail.protection.outlook.com, ms34808860.msv1.invalid.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 237ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 234ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.236.62.147	3600s	147.62.236.23.bc.googleusercontent.com	AS396982	Google LLC	23.236.48.0/20	🇺🇸 United States	Council Bluffs

📧 MX Records#

2 records 175ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	isib-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca09::c 52.101.68.10 52.101.68.18 52.101.73.28 52.101.73.4	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.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
40	3600s	ms34808860.msv1.invalid.outlook.com	—	—	—

📧 Autodiscover / Autoconfig#

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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 265ms

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

📝 TXT Records#

3 records 419ms

TXT Record
apple-domain-verification=YP5JbJS1OkPSij5o
MS=ms34808860
v=spf1 include:spf.protection.outlook.com ip4:91.236.210.158 -all

✉️ SPF#

Policy	Record (isib.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:91.236.210.158 -all

📨 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#

latest probe, not this scan · checked 2026-10-08 02:36:13

www CNAME	www200.wixdns.net (all on wixdns.net) → 34.149.87.45 (AS396982)
www vs bare domain	Same network isib.dk: 23.236.62.147 (AS396982) www.isib.dk: 34.149.87.45 (AS396982)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

349ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081801
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-26 17:26:33

Field	Value
Registrar	CURANET A/S
Registered	2009-01-22
Expires	2027-01-31 (96d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

237ms

234ms

175ms

AAAA

245ms

TXT

419ms

CAA

263ms

HTTPS

199ms

TLSA

1079ms

SOA

0ms

MTA-STS

271ms

DNSSEC

349ms

SRV

265ms

Total

4416ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 02:36:13	989ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-01 21:05:34	1272ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-27 13:23:15	881ms	2 NS 1 A 2 MX	🔒 Secure
2026-08-18 14:19:21 shown	4416ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 13:14:03	3023ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 11:22:28	1118ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 04:39:27	1145ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 20:13:13	1752ms	2 NS 1 A 2 MX	🔒 Secure