byggeri-teknik.dk

📜 Historical scan 2026-09-30 15:44:10  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byggeri-teknik.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 23 January 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.251 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dk.mx1.mailanyone.net, dk.mx2.mx25.net and 2 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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   37ms
NameserverIP addressesPTRASN / ISP
ns1.curanet.dk 185.25.141.12
2a02:2339:4006:108::123		 ns1.curanet.dk
ns1.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.curanet.dk 2a02:2339:1:10f::123:123
91.197.248.75		 ns2.curanet.dk
ns2.curanet.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.40.251 3600s linux8.curanet.dk AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —

📧 MX Records#

4 records   57ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s dk.mx1.mailanyone.net 192.162.219.155
2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd		 mx41.electric.net
mx11.electric.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
20 3600s dk.mx2.mx25.net 192.162.219.49 mx41.electric.net AS16509 Amazon.com, Inc.
30 3600s dk.mx3.mailanyone.net 192.162.219.255
2a01:77c0:1619:4101:d99:c22:fb4d:290e		 mx41.electric.net
mx10.electric.net		 AS16509 Amazon.com, Inc.
AS16509 Amazon.com, Inc.
40 3600s dk.mx4.mx25.net 192.162.219.255 mx41.electric.net AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.40
🔶 Autoconfig185.21.40.251

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   63ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 100 1 5061 sipfed.online.lync.com

📝 TXT Records#

2 records   137ms
TXT Record
MS=ms25333315
v=spf1 include:spf.mailanyone.net include:send.heyloyalty.com include:mail.zendesk.com include:spf.protection.outlook.com ip4:37.128.216.254 ip4:185.99.120.0/24 ip4:185.99.121.0/24 ip4:185.99.122.0/24 ip4:185.99.123.0/24 ip4:185.163.188.0/24 ip4:185.163.189.0/24 ip4:185.163.190.0/24 ip4:185.163.191.0/24 ip4:194.9.86.0/24 ip4:194.9.87.0/24 ip4:185.51.78.140 ip4:185.51.78.141 ip4:185.51.78.142 ip4:185.51.78.143 ip4:185.150.198.82 ip4:185.150.198.83 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/14 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/50 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 ip4:185.41.28.0/22 ip4:94.143.16.0/21 ip4:185.24.144.0/22 ip4:153.92.224.0/19 ip4:213.32.128.0/18 ip4:185.107.232.0/22 ip4:77.32.128.0/18 ip4:77.32.192.0/19 ip4:212.146.192.0/18 ip4:172.246.0.0/18 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:185.163.189.46 ip4:104.47.51.202 ip4:104.47.51.138 ip4:20.54.238.131 ip4:185.21.41.184 ~all

✉️ SPF#

PolicyRecord (byggeri-teknik.dk)
~all (soft fail) v=spf1 include:spf.mailanyone.net include:send.heyloyalty.com include:mail.zendesk.com include:spf.protection.outlook.com ip4:37.128.216.254 ip4:185.99.120.0/24 ip4:185.99.121.0/24 ip4:185.99.122.0/24 ip4:185.99.123.0/24 ip4:185.163.188.0/24 ip4:185.163.189.0/24 ip4:185.163.190.0/24 ip4:185.163.191.0/24 ip4:194.9.86.0/24 ip4:194.9.87.0/24 ip4:185.51.78.140 ip4:185.51.78.141 ip4:185.51.78.142 ip4:185.51.78.143 ip4:185.150.198.82 ip4:185.150.198.83 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/14 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/50 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 ip4:185.41.28.0/22 ip4:94.143.16.0/21 ip4:185.24.144.0/22 ip4:153.92.224.0/19 ip4:213.32.128.0/18 ip4:185.107.232.0/22 ip4:77.32.128.0/18 ip4:77.32.192.0/19 ip4:212.146.192.0/18 ip4:172.246.0.0/18 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/21 ip4:185.163.189.46 ip4:104.47.51.202 ip4:104.47.51.138 ip4:20.54.238.131 ip4:185.21.41.184 ~all

📨 DMARC#

PolicyRecord (_dmarc.byggeri-teknik.dk)
p=none (monitor only) v=DMARC1; p=none

📬 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 2026-10-07 18:36:44
www185.21.40.251 (AS48854) (address records, no CNAME)
www vs bare domainSame network
byggeri-teknik.dk: 185.21.40.251 (AS48854)
www.byggeri-teknik.dk: 185.21.40.251 (AS48854)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

  • info Record is 1003 bytes: long SPF records risk UDP truncation

🔗 TLSA / DANE#

8 records   113ms
Service / OwnerTypeCert association
SMTP _25._tcp.dk.mx1.mailanyone.net DANE-EE · Full cert · SHA-256 1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx1.mailanyone.net DANE-EE · Full cert · SHA-256 443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx2.mx25.net DANE-EE · Full cert · SHA-256 1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx2.mx25.net DANE-EE · Full cert · SHA-256 443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx3.mailanyone.net DANE-EE · Full cert · SHA-256 1AAAC405385DEB66C25E43D629569F6C…
SMTP _25._tcp.dk.mx3.mailanyone.net DANE-EE · Full cert · SHA-256 443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net DANE-EE · Full cert · SHA-256 443DFE296DAC92DD311766BAD0B04CC7…
SMTP _25._tcp.dk.mx4.mx25.net DANE-EE · Full cert · SHA-256 1AAAC405385DEB66C25E43D629569F6C…

🔐 DNSSEC#

72ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

47ms
FieldValue
Serial2025090701
Primary NS (MNAME)ns1.curanet.dk
Responsible (RNAME)hostmaster@curanet.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-06 15:42:55
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2004-01-23
Expires2027-01-31 (96d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
37ms
A
34ms
MX
57ms
AAAA
48ms
TXT
137ms
CAA
39ms
HTTPS
32ms
TLSA
113ms
SOA
47ms
MTA-STS
59ms
DNSSEC
72ms
SRV
63ms
Total
874ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 18:36:44 744ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-30 15:44:10 shown 874ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-27 00:22:27 956ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-04 02:20:26 873ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-01 10:06:04 1144ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-19 23:24:59 837ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-16 18:15:07 1096ms 2 NS 1 A 4 MX 🔒 Secure
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