crosslab.dk

Records from scan: 2026-10-14 13:10:59  ·  743ms total  ·  last checked 2026-10-16 19:21 (unchanged)
⬇ 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   35ms
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   31ms
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   32ms
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   41ms
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   34ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.8.147,172.67.188.139 ech=AEX+DQBBZAAgACAkrEn6gECgdEWk5PMhWUOSVTCvsfM0cKj3LV+x2nl/MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:bc8b,2606:4700:3033::6815:893

🔌 SRV Records#

1 records   63ms
ServicePriorityWeightPortTarget
_sip._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

1 records   152ms
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#

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#

1 records   72ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 4B949F05A63FED95FC94B3A83DD70167…

🔐 DNSSEC#

113ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

27ms
FieldValue
Serial2417404181
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
35ms
A
31ms
MX
32ms
AAAA
41ms
TXT
152ms
CAA
33ms
HTTPS
34ms
TLSA
72ms
SOA
27ms
MTA-STS
52ms
DNSSEC
113ms
SRV
63ms
Total
743ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-14 13:10:59 shown 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 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
dhd.dk [/] search Domains, Hosts & DNS — .dk zone