sesiv.dk

Records from scan: 2026-06-25 23:25:39 · 728ms total · last checked 2026-10-22 05:40 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sesiv.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 4 November 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.163.137.202 is hosted by WIIT AG (AS24961) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no 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 45ms

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 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.163.137.202	3600s	—	AS24961	WIIT AG	89.163.128.0/17	🇩🇪 Germany	—

📧 MX Records#

5 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	173.194.221.26 2a00:1450:4010:c0b::1b 2a00:1450:4010:c0b::1b	lm-in-f26.1e100.net lo-in-f27.1e100.net lo-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	89.163.137.202
🔶 Autoconfig	89.163.137.202

🔷 AAAA Records (IPv6)#

1 records 30ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:4ba0:92c1:49::2	3600s	—	AS24961	WIIT AG	2001:4ba0:0:0:0:0:0:0/31	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 95ms

TXT Record
v=spf1 a mx ip4:89.163.137.202 ip6:2001:4ba0:92c1:49::2 include:spf.protection.outlook.com include:_spf.google.com ~all

✉️ SPF#

Policy	Record (sesiv.dk)
~all (soft fail)	v=spf1 a mx ip4:89.163.137.202 ip6:2001:4ba0:92c1:49::2 include:spf.protection.outlook.com include:_spf.google.com ~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#

checked 2026-10-10 15:49:13

www	89.163.137.202 2001:4ba0:92c1:49::2 (AS24961) (address records, no CNAME)
www vs bare domain	Same network sesiv.dk: 89.163.137.202 2001:4ba0:92c1:49::2 (AS24961) www.sesiv.dk: 89.163.137.202 2001:4ba0:92c1:49::2 (AS24961)
Wildcard	Yes: any name under the zone resolves
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: 4/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2021031001
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 2026-10-09 03:35:36

Field	Value
Registrar	CURANET A/S
Registered	2010-11-04
Expires	2026-11-30 (38d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

31ms

39ms

AAAA

30ms

TXT

95ms

CAA

47ms

HTTPS

39ms

TLSA

94ms

SOA

37ms

MTA-STS

41ms

DNSSEC

110ms

SRV

54ms

Total

728ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-25 23:25:39 shown	728ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-21 21:37:04	923ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 19:38:56	618ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-17 23:50:00	787ms	2 NS 1 A 5 MX	🔒 Secure