crosslab.dk

📜 Historical scan 2026-09-24 12:36:32  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

crosslab.dk is a .dk domain served by 2 nameservers (dara.ns.cloudflare.com, piotr.ns.cloudflare.com). It was registered on 31 August 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.8.147 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, 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   42ms
NameserverIP addressesPTRASN / ISP
dara.ns.cloudflare.com 108.162.192.91
172.64.32.91
173.245.58.91
2606:4700:50::adf5:3a5b
2803:f800:50::6ca2:c05b
2a06:98c1:50::ac40:205b		 dara.ns.cloudflare.com
dara.ns.cloudflare.com
dara.ns.cloudflare.com
dara.ns.cloudflare.com
dara.ns.cloudflare.com
dara.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
piotr.ns.cloudflare.com 108.162.193.222
172.64.33.222
173.245.59.222
2606:4700:58::adf5:3bde
2803:f800:50::6ca2:c1de
2a06:98c1:50::ac40:21de		 piotr.ns.cloudflare.com
piotr.ns.cloudflare.com
piotr.ns.cloudflare.com
piotr.ns.cloudflare.com
piotr.ns.cloudflare.com
piotr.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   46ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.8.147 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.188.139 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records   42ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::ac43:bc8b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::6815:893 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   36ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.8.147,172.67.188.139 ech=AEX+DQBBuAAgACCYfZwa4GZOvwEwgBl5qwPKjQFwsmBznWHeNsmmr5voDgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:bc8b,2606:4700:3033::6815:893

🔌 SRV Records#

1 records   72ms
ServicePriorityWeightPortTarget
_sip._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

1 records   195ms
TXT Record
v=spf1 include:mail.reepay.com include:spf.simply.com ~all

✉️ SPF#

PolicyRecord (crosslab.dk)
~all (soft fail) v=spf1 include:mail.reepay.com include:spf.simply.com ~all

📨 DMARC#

PolicyRecord (_dmarc.crosslab.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:mathias@mejborn.dk; ruf=mailto:mathias@mejborn.dk; fo=1

📬 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 13:10:59
www104.21.8.147 172.67.188.139 2606:4700:3030::ac43:bc8b 2606:4700:3033::6815:893 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: ~all

  • warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

2 records   57ms
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#

70ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2412251495
Primary NS (MNAME)dara.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 13:30:50
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2017-08-31
Expires2027-08-31 (317d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
42ms
A
46ms
MX
51ms
AAAA
42ms
TXT
195ms
CAA
34ms
HTTPS
36ms
TLSA
57ms
SOA
0ms
MTA-STS
64ms
DNSSEC
70ms
SRV
72ms
Total
601ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 13:10:59 743ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 12:48:00 1214ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 12:36:32 shown 601ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-01 01:00:18 9579ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-29 01:10:42 6771ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-17 06:12:09 4233ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-28 13:47:39 9851ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-02 14:12:55 1445ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-20 23:32:31 1439ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-20 23:05:57 1155ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 00:56:12 65535ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 23:23:04 1625ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 23:07:35 445ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 23:00:32 2525ms 2 NS 2 A 1 MX 🔓 Insecure
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