seras.dk DNS records

🖥️ Nameservers3 records 85ms

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

🌍 A Records1 records 92ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.62.127.229	3600s	0x573e7fe5.static.cust.fastspeed.dk	AS3292	TDC Holding A/S	87.62.0.0/15	🇩🇰 Denmark	—

📧 MX Records1 records 97ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	seras-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca09::9 2a01:111:f403:ca09::b 2a01:111:f403:ca09::f 52.101.68.16 52.101.73.11 52.101.73.19 52.101.73.24	mail-db7pr03cu00401.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.40
🔶 Autoconfig	seras.dk → 87.62.127.229

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 253ms

TXT Record
google-site-verification=CoFNSFyw6dHcrZFTlQUZ22Xl_qP4V8sp41oywolL96E
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (seras.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.seras.dk	seras.dk

🔗 TLSA / DANE

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

🔐 DNSSEC225ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026072300
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

85ms

A

92ms

MX

97ms

AAAA

101ms

TXT

253ms

CAA

89ms

HTTPS

103ms

TLSA

8315ms

SOA

0ms

MTA-STS

95ms

DNSSEC

225ms

SRV

119ms

Total

9394ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-24 01:03:57	9394ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-23 00:37:26	17361ms	3 NS 1 A 1 MX	🔓 Insecure	View
2026-07-21 21:51:44	709ms	3 NS 0 A 0 MX	🔓 Insecure	View
2026-07-09 22:13:30	2912ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-03 05:52:44	893ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 08:18:30	3016ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 17:06:55	1162ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 06:13:46	780ms	2 NS 1 A 1 MX	🔒 Secure	View