jacobsenc.dk

📜 Historical scan 2026-10-09 14:14:40  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobsenc.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 18 August 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.214.221.112 is hosted by Google Ireland Limited (AS43515) in The Netherlands. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no 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   37ms

🌍 A Records#

1 records   40ms

📧 MX Records#

5 records   48ms

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   101ms
TXT Record
facebook-domain-verification=ozo4sjmp7v4hrbub3hc67q1df06uzg
v=spf1 include:sendgrid.net ~all

✉️ SPF#

PolicyRecord (jacobsenc.dk)
~all (soft fail) v=spf1 include:sendgrid.net ~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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 00:22:52
www35.214.221.112 (AS43515) (address records, no CNAME)
www vs bare domainSame network
jacobsenc.dk: 35.214.221.112 (AS43515)
www.jacobsenc.dk: 35.214.221.112 (AS43515)
WildcardNo
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

✍️ DKIM keys#

2 found
SelectorCNAMEKey
s1 s1.domainkey.u33091612.wl113.sendgrid.net RSA · ~2048 bit
s2 s2.domainkey.u33091612.wl113.sendgrid.net 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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

22ms
FieldValue
Serial2026100100
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-17 02:19:49
FieldValue
RegistrarSimply.com A/S
Registered2021-08-18
Expires2027-08-31 (311d)

🔗 Same registrant#

41 domains
📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
40ms
MX
48ms
AAAA
40ms
TXT
101ms
CAA
29ms
HTTPS
24ms
TLSA
128ms
SOA
22ms
MTA-STS
46ms
DNSSEC
110ms
SRV
47ms
Total
827ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 00:22:51 1709ms 4 NS 1 A 5 MX 🔒 Secure
2026-10-09 14:14:40 shown 827ms 4 NS 1 A 5 MX 🔒 Secure
2026-10-02 09:02:57 822ms 4 NS 1 A 5 MX 🔒 Secure
2026-09-26 07:37:52 753ms 4 NS 1 A 5 MX 🔒 Secure
2026-06-26 05:20:48 1005ms 4 NS 1 A 5 MX 🔒 Secure
2026-06-24 15:51:24 813ms 4 NS 1 A 5 MX 🔒 Secure
2026-06-18 06:27:58 2787ms 4 NS 1 A 5 MX 🔒 Secure
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