sdrborkefterskole.dk DNS records

🖥️ Nameservers4 records 36ms

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 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.107	3600s	vm1057.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records2 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	frontmta.hostedsepo.dk	92.43.124.44	—	AS44398 Itm8 A/S
10	900s	frontmta.hostedsepo.dk	92.43.124.44	—	AS44398 Itm8 A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 36ms

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

📝 TXT Records3 records 158ms

TXT Record
apple-domain-verification=A0JkVFxR1mXAgBx4
Sendinblue-code:63e72a28ee2f4d1d546f8cad17080171
v=spf1 mx ip4:94.231.96.0/20 include:spf.protection.outlook.com include:spf.sendinblue.com include:o._spf.hostedsepo.dk -all

✉️ SPF

Policy	Record (sdrborkefterskole.dk)
-all (hard fail)	v=spf1 mx ip4:94.231.96.0/20 include:spf.protection.outlook.com include:spf.sendinblue.com include:o._spf.hostedsepo.dk -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 / DANE2 records 61ms

Service / Owner	Type	Cert association
SMTP _25._tcp.frontmta.hostedsepo.dk	DANE-EE · SPKI · SHA-256	F6EC319A6D18F16926CF1DC9D5AFACBE…
SMTP _25._tcp.frontmta.hostedsepo.dk	DANE-TA · SPKI · SHA-256	1E20888F63520C235F8E61FDEA725CCE…

🔐 DNSSEC62ms

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

🏷️ SOA35ms

Field	Value
Serial	2025081403
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

36ms

A

34ms

MX

32ms

AAAA

39ms

TXT

158ms

CAA

43ms

HTTPS

34ms

TLSA

61ms

SOA

35ms

MTA-STS

45ms

DNSSEC

62ms

SRV

36ms

Total

1470ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-02 15:37:44	1470ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-25 17:49:03	598ms	4 NS 1 A 2 MX	🔒 Secure	View
2026-06-23 22:45:14	963ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-23 02:49:21	1170ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:19:54	676ms	4 NS 1 A 2 MX	🔒 Secure	View