bymain.dk

📜 Historical scan 2026-06-16 18:25:59  ·  ← 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 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   48ms
NameserverIP addressesPTRASN / ISP
neil.ns.cloudflare.com — — —
suzanne.ns.cloudflare.com — — —

🌍 A Records#

2 records   51ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.90.165 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.158.50 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   48ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

2 records   62ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:9e32 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:5aa5 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   56ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.90.165,172.67.158.50 ech=AEX+DQBBiQAgACB6fwZmiM8HN6m0zArqRqb3a8Bz4w83oH5zMt0Ta81SRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9e32,2606:4700:3037::6815:5aa5

📝 TXT Records#

3 records   174ms
TXT Record
facebook-domain-verification=m4wdnrp0rvd1xitt42gnn0ucai33r9
google-site-verification=zZNwmAhJUIpNuumxeiVwZ76EqQ6z3zzZGXH7nF8bMjs
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   122ms
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#

152ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

65ms
FieldValue
Serial2406302817
Primary NS (MNAME)neil.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
48ms
A
51ms
MX
48ms
AAAA
62ms
TXT
174ms
CAA
57ms
HTTPS
56ms
TLSA
122ms
SOA
65ms
MTA-STS
50ms
DNSSEC
152ms
SRV
0ms
Total
656ms

🕐 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 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 shown 656ms 2 NS 2 A 1 MX 🔓 Insecure
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