zastrow.dk

📜 Historical scan 2026-09-30 00:35:55  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zastrow.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 December 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.229 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod16-cph3.g1i.one.com, mx2.mailpod16-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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#

2 records   29ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   30ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.111.240.229 3600s webcluster2.wordpresspod1-cph3.one.com AS51468 One.com A/S 77.111.240.0/22 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   34ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.mailpod16-cph3.g1i.one.com 5.249.232.33 mx1.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx2.mailpod16-cph3.g1i.one.com 5.249.232.34 mx2.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx3.mailpod16-cph3.g1i.one.com 5.249.232.35 mx3.mailpod16-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx4.mailpod16-cph3.g1i.one.com 5.249.232.36 mx4.mailpod16-cph3.g1i.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records   44ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:101:802c:d7c4:196:21e1 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   152ms
TXT Record
v=spf1 include:sendgrid.net include:_custspf.one.com ~all

✉️ SPF#

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 16:10:17
www77.111.240.229 2a02:2350:5:101:802c:d7c4:196:21e1 (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   90ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 2362DFAC1BB9F66402E0636BDEF478E5…

🔐 DNSSEC#

58ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026090401
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-06 07:43:31
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2001-12-04
Expires2026-12-31 (75d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
29ms
A
30ms
MX
34ms
AAAA
44ms
TXT
152ms
CAA
32ms
HTTPS
48ms
TLSA
90ms
SOA
0ms
MTA-STS
46ms
DNSSEC
58ms
SRV
55ms
Total
557ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 16:10:17 463ms 2 NS 1 A 4 MX 🔒 Secure
2026-10-09 10:22:47 651ms 2 NS 1 A 4 MX 🔒 Secure
2026-10-06 07:10:01 1829ms 2 NS 1 A 4 MX 🔒 Secure
2026-10-01 06:07:50 681ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-30 00:35:55 shown 557ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-25 16:11:46 675ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-07 03:42:33 945ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-28 07:19:44 712ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-13 06:20:07 5531ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-10 16:14:35 1450ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-03 16:04:35 8972ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-27 17:06:47 1167ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-26 16:50:52 1027ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-25 16:18:19 8962ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-24 16:02:33 922ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-23 15:38:28 1420ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-22 13:30:55 1077ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-21 07:52:05 1100ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-20 02:06:22 9049ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-18 15:30:59 953ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-17 11:39:28 867ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-16 01:50:03 3470ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-09 00:59:50 1020ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-06 08:17:09 949ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-04 22:59:42 1013ms 2 NS 1 A 4 MX 🔒 Secure
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