bymain.dk

📜 Historical scan 2026-06-26 21:42:25  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bymain.dk is a .dk domain served by 2 nameservers (neil.ns.cloudflare.com, suzanne.ns.cloudflare.com). It was registered on 25 July 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.90.165 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   131ms
NameserverIP addressesPTRASN / ISP
neil.ns.cloudflare.com 108.162.193.211
172.64.33.211
173.245.59.211
2606:4700:58::adf5:3bd3
2803:f800:50::6ca2:c1d3
2a06:98c1:50::ac40:21d3		 neil.ns.cloudflare.com
neil.ns.cloudflare.com
neil.ns.cloudflare.com
neil.ns.cloudflare.com
neil.ns.cloudflare.com
neil.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
suzanne.ns.cloudflare.com 108.162.194.87
162.159.38.87
172.64.34.87
2606:4700:50::a29f:2657
2803:f800:50::6ca2:c257
2a06:98c1:50::ac40:2257		 suzanne.ns.cloudflare.com
suzanne.ns.cloudflare.com
suzanne.ns.cloudflare.com
suzanne.ns.cloudflare.com
suzanne.ns.cloudflare.com
suzanne.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   138ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.90.165 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.158.50 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   109ms
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
🔷 Autodiscover93.191.156.201
🔶 Autoconfig104.21.90.165

🔷 AAAA Records (IPv6)#

2 records   129ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:9e32 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:5aa5 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   101ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.90.165,172.67.158.50 ech=AEX+DQBBFAAgACDWoAgAOkKZTQouulORkrky2Tii4iKo/FCi9RNuOe/BQAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9e32,2606:4700:3037::6815:5aa5

🔌 SRV Records#

1 records   134ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

4 records   312ms
TXT Record
facebook-domain-verification=m4wdnrp0rvd1xitt42gnn0ucai33r9
google-site-verification=zZNwmAhJUIpNuumxeiVwZ76EqQ6z3zzZGXH7nF8bMjs
klaviyo-site-verification=WhYtWE
v=spf1 mx a include:spf.unoeuro.com ip4:185.163.189.0/24 include:spf.simply.com ~all

✉️ SPF#

PolicyRecord (bymain.dk)
~all (soft fail) v=spf1 mx a include:spf.unoeuro.com ip4:185.163.189.0/24 include:spf.simply.com ~all

📨 DMARC#

PolicyRecord (_dmarc.bymain.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-10 02:18:22
www104.21.90.165 172.67.158.50 2606:4700:3033::6815:5aa5 2606:4700:3037::ac43:9e32 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — RSA · ~1024 bit below 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: 5/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

2 records   851ms
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#

180ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2407953413
Primary NS (MNAME)neil.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-17 09:13:24
FieldValue
RegistrarSimply.com A/S
Registered2019-07-25
Expires2027-07-31 (285d)

🔗 Same registrant#

1 domain

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).

DomainRegistrar
onkel-slik.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
131ms
A
138ms
MX
109ms
AAAA
129ms
TXT
312ms
CAA
128ms
HTTPS
101ms
TLSA
851ms
SOA
0ms
MTA-STS
138ms
DNSSEC
180ms
SRV
134ms
Total
1853ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 22:30:55 658ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 14:18:59 682ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 13:48:28 1196ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-16 12:23:07 2104ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-09 09:30:18 2181ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 18:32:48 568ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-22 22:06:57 1226ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-05 21:50:11 1547ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-28 23:18:10 967ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-26 21:42:25 shown 1853ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-23 00:07:28 794ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-21 22:22:29 636ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-20 02:26:26 738ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-19 22:02:03 5009ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 18:25:59 656ms 2 NS 2 A 1 MX 🔓 Insecure
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