ceser.dk

📜 Historical scan 2026-09-08 06:10:45 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ceser.dk is a .dk domain served by 3 nameservers (ns1.dns.services, ns2.dns.services, ns3.dns.services). It was registered on 28 October 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 89.239.225.154 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by ceser-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 37ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dns.services	195.242.131.6 2001:67c:564:ffff::11	ns1.dns.services ns1.dns.services	AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS
ns2.dns.services	2a00:1b18:2:3:3::2 62.69.152.37	ns2.dns.services ns2.dns.services	AS47527 DLX A/S AS47527 DLX A/S
ns3.dns.services	185.55.197.53	ns3.dns.services	AS60153 Inpadi ApS

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.239.225.154	600s	89.239.225.154.dhcp.fibianet.dk	AS44869	FIBIA P/S	89.239.192.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	ceser-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::8 2a01:111:f403:ca04::b 2a01:111:f403:ca09::24 52.101.103.137 52.101.181.156 52.101.73.11 52.101.73.19	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr04cu00803.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
🔶 Autoconfig	ceser.dk → 89.239.225.154

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 150ms

TXT Record
apple-domain-verification=aESSGw0LH5yeBzr4
MS=ms60963958
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

latest probe, not this scan · checked 2026-10-12 23:52:54

www CNAME	ceser.dk (all on ceser.dk) → 89.239.225.154 (AS44869)
www vs bare domain	Same network ceser.dk: 89.239.225.154 (AS44869) www.ceser.dk: 89.239.225.154 (AS44869)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.ceser.dk	ceser.dk
TXT	ceser.dk	apple-domain-verification=aESSGw0LH5yeBzr4

🔗 TLSA / DANE#

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

🔐 DNSSEC#

82ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2022102844
Primary NS (MNAME)	ns1.dns.services
Responsible (RNAME)	post@dns.services
Refresh	10800s
Retry	3600s
Expire	1814400s
Minimum (neg-cache TTL)	7200s

📋 Registration#

WHOIS fetched 2026-10-08 01:44:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-10-28
Expires	2027-10-27 (371d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

33ms

36ms

AAAA

45ms

TXT

150ms

CAA

48ms

HTTPS

33ms

TLSA

604ms

SOA

0ms

MTA-STS

51ms

DNSSEC

82ms

SRV

65ms

Total

1306ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 06:33:30	772ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-15 02:12:18	1479ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-08 06:10:45 shown	1306ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-25 16:53:32	1312ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-24 19:00:43	1359ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-23 06:16:09	912ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 04:11:02	2675ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 20:10:04	1952ms	3 NS 1 A 1 MX	🔒 Secure