securefirst.dk

📜 Historical scan 2026-08-11 04:57:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

securefirst.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 July 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.81 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by securefirst-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 33ms

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 Records#

1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.81	3600s	linux124.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	securefirst-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca09::7 52.101.68.0 52.101.73.19 52.101.73.22 52.101.73.26	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-as9pr05cu01302.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 86ms

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

📝 TXT Records#

2 records 132ms

TXT Record
apple-domain-verification=wlFTgHjj30XAEgMG
v=spf1 ip4:172.205.114.33 include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (securefirst.dk)
~all (soft fail)	v=spf1 ip4:172.205.114.33 include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.securefirst.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:support+dmarc@securefirst.dk; ruf=mailto:support+dmarc@securefirst.dk

📬 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 2026-10-14 11:31:01

www	94.231.103.81 (AS48854) (address records, no CNAME)
www vs bare domain	Same network securefirst.dk: 94.231.103.81 (AS48854) www.securefirst.dk: 94.231.103.81 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-securefirst-dk._domainkey.securefirst360.e-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

77ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081002
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-10 06:55:46

Field	Value
Registrar	Simply.com A/S
Registered	2023-07-02
Expires	2030-07-01 (1352d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

46ms

40ms

AAAA

49ms

TXT

132ms

CAA

51ms

HTTPS

47ms

TLSA

399ms

SOA

0ms

MTA-STS

46ms

DNSSEC

77ms

SRV

86ms

Total

1363ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 11:30:59	1603ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-13 09:57:12	2148ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-12 09:04:56	1036ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-11 07:32:29	1030ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 06:19:10	998ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 19:41:22	1178ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 19:39:57	1318ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 19:37:06	3620ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 19:16:54	967ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-28 19:00:26	850ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 18:47:17	992ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 18:37:22	647ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 15:43:12	969ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 15:12:45	769ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-20 01:25:09	1535ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-11 11:29:12	1679ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-06 11:10:16	1080ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-19 10:02:36	1418ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-18 10:02:10	3963ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-11 04:57:12 shown	1363ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-09 11:05:29	1927ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-06 12:32:26	1573ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-03 19:22:56	2428ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-26 20:33:23	3483ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-13 05:46:04	1228ms	3 NS 1 A 1 MX	🔒 Secure