seren.dk DNS records

🖥️ Nameservers4 records 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.191	3600s	vm1285.enterprisecloud.nu	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records2 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3313s	seren-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::28 2a01:111:f403:ca09::9 2a01:111:f403:ca38::8 52.101.68.21 52.101.68.5 52.101.73.28 52.101.73.30	mail-du0pr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am7pr05cu00306.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
10	3313s	ms65610578.msv1.invalid.outlook.com	—	—	—

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 63ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records1 records 163ms

TXT Record
v=spf1 include:spf.minisite.dk include:emsd1.com include:servers.mcsv.net include:spf.protection.outlook.com include:spf.webcrm.com include:emsd1.com -all

✉️ SPF

Policy	Record (seren.dk)
-all (hard fail)	v=spf1 include:spf.minisite.dk include:emsd1.com include:servers.mcsv.net include:spf.protection.outlook.com include:spf.webcrm.com include:emsd1.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

🔗 TLSA / DANE

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

🔐 DNSSEC76ms

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

🏷️ SOA0ms

Field	Value
Serial	2026041103
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

35ms

A

37ms

MX

40ms

AAAA

51ms

TXT

163ms

CAA

53ms

HTTPS

50ms

TLSA

318ms

SOA

0ms

MTA-STS

71ms

DNSSEC

76ms

SRV

63ms

Total

1221ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 15:51:43	1221ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 03:27:01	2204ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-26 00:51:46	1028ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-24 10:55:03	1642ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 11:44:26	1995ms	4 NS 1 A 2 MX	🔒 Secure	View