si-construction.dk

📜 Historical scan 2026-06-17 19:41:44 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

si-construction.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 October 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.214.242.245 is hosted by Google Ireland Limited (AS43515) in The Netherlands. Mail is handled by siconstruction-dk0e.mail.protection.outlook.com. 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 75ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.214.242.245	—	245.242.214.35.bc.googleusercontent.com	AS43515	Google Ireland Limited	35.214.128.0/17	🇳🇱 The Netherlands	Groningen

📧 MX Records#

1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	siconstruction-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::2 2a01:111:f403:ca09::1 2a01:111:f403:ca09::6 52.101.68.15 52.101.68.16 52.101.73.22 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.101.112.194

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 2035ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 197ms

TXT Record
MS=ms77940650
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (si-construction.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.si-construction.dk)
p=reject	v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;rua=mailto:dmarc_agg@vali.email;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 2026-10-10 01:46:28

www	35.214.242.245 (AS43515) (address records, no CNAME)
www vs bare domain	Same network si-construction.dk: 35.214.242.245 (AS43515) www.si-construction.dk: 35.214.242.245 (AS43515)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-siconstruction-dk0e._domainkey.oleibsen.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-siconstruction-dk0e._domainkey.oleibsen.onmicrosoft.com	RSA · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

192ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

60ms

Field	Value
Serial	2026060901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-09 03:09:34

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-10-15
Expires	2026-10-31 (11d)

📋 WHOIS#

⏱️ Lookup Timing#

75ms

60ms

AAAA

60ms

TXT

197ms

CAA

69ms

HTTPS

60ms

TLSA

181ms

SOA

60ms

MTA-STS

127ms

DNSSEC

192ms

SRV

2035ms

Total

2655ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 01:46:28	1925ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 17:01:01	892ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 05:35:24	1503ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 17:51:10	3091ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-30 07:21:06	1230ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-09 13:45:41	1786ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-12 07:10:26	2227ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 22:59:05	2648ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 18:56:01	3872ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 19:27:59	677ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 19:41:44 shown	2655ms	2 NS 1 A 1 MX	🔒 Secure