fernstrum.dk

📜 Historical scan 2026-06-17 09:37:02  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fernstrum.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 15 August 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.213 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.simply.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#

4 records   60ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com — — —
ns2.simply.com — — —
ns3.simply.com — — —
ns4.simply.com — — —

🌍 A Records#

1 records   58ms
IPTTLPTRASNISP / OrgCIDRCountryCity
93.191.156.213 — linux312.unoeuro.com AS48854 team.blue Denmark A/S 93.191.152.0/21 🇩🇰 Denmark —

📧 MX Records#

1 records   71ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   147ms
TXT Record
google-site-verification=pc0Wr903HH8eHJdHGD8w0wDpNWbQ2lQ-rU-OpwcrdnY

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

PolicyRecord (_dmarc.fernstrum.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-15 10:32:11
www93.191.156.213 (AS48854) (address records, no CNAME)
www vs bare domainSame network
fernstrum.dk: 93.191.156.213 (AS48854)
www.fernstrum.dk: 93.191.156.213 (AS48854)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔗 TLSA / DANE#

2 records   84ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

164ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

55ms
FieldValue
Serial2025042300
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-13 21:35:03
FieldValue
RegistrarSimply.com A/S
Registered2019-08-15
Expires2027-08-31 (317d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
gridcooler.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
60ms
A
58ms
MX
71ms
AAAA
46ms
TXT
147ms
CAA
56ms
HTTPS
57ms
TLSA
84ms
SOA
55ms
MTA-STS
330ms
DNSSEC
164ms
SRV
0ms
Total
857ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 20:42:11 2126ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-30 20:21:31 502ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-27 17:35:33 636ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-26 13:23:35 603ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-26 00:34:59 595ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-20 03:15:20 6816ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-17 09:37:02 shown 857ms 4 NS 1 A 1 MX 🔒 Secure
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