simplybook.dk

📜 Historical scan 2026-06-25 19:00:06  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

simplybook.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 2 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.210 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com and 2 more. The zone is DNSSEC-signed and validates, publishes a 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   178ms
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   177ms
IPTTLPTRASNISP / OrgCIDRCountryCity
46.30.215.210 3600s webcluster1.webpod18-cph3.g1i.one AS51468 One.com A/S 46.30.208.0/21 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   229ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.mailpod15-cph3.g1i.one.com 104.37.35.36 mx1.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx2.mailpod15-cph3.g1i.one.com 104.37.35.37 mx2.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx3.mailpod15-cph3.g1i.one.com 104.37.35.38 mx3.mailpod15-cph3.g1i.one.com AS51468 One.com A/S
10 10800s mx4.mailpod15-cph3.g1i.one.com 104.37.35.39 mx4.mailpod15-cph3.g1i.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

1 records   204ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:108:91:65f4:303d:b224 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   554ms
TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF#

PolicyRecord (simplybook.dk)
~all (soft fail) v=spf1 include:_custspf.one.com ~all

📨 DMARC#

PolicyRecord (_dmarc.simplybook.dk)
p=reject v=DMARC1; p=reject

📬 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 2026-10-08 03:34:34
www46.30.215.210 2a02:2350:5:108:91:65f4:303d:b224 (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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

4 records   874ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx2.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx3.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…
SMTP _25._tcp.mx4.mailpod15-cph3.g1i.one.com DANE-EE · SPKI · SHA-256 DB00CDA1DB82CC93CBF96D7D5806F329…

🔐 DNSSEC#

551ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

165ms
FieldValue
Serial2026060601
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-07 03:51:04
FieldValue
RegistrarONE.COM A/S
Registered2026-04-02
Expires2027-04-01 (164d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
178ms
A
177ms
MX
229ms
AAAA
204ms
TXT
554ms
CAA
175ms
HTTPS
145ms
TLSA
874ms
SOA
165ms
MTA-STS
204ms
DNSSEC
551ms
SRV
356ms
Total
2859ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 03:28:45 445ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-30 02:33:47 814ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-27 01:30:19 632ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-23 16:56:32 808ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-05 17:03:14 731ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-07 16:03:00 1552ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-01 18:38:38 1812ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-08 22:31:24 1113ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-02 22:49:46 1458ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-25 19:00:06 shown 2859ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-24 06:30:01 926ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 14:54:49 993ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-20 07:52:11 2851ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-18 01:00:33 868ms 2 NS 1 A 4 MX 🔒 Secure
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