si-construction.dk DNS records

🖥️ Nameservers2 records 255ms

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 Records1 records 297ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.214.242.245	3600s	245.242.214.35.bc.googleusercontent.com	AS43515	Google Ireland Limited	35.214.128.0/17	🇳🇱 The Netherlands	Groningen

📧 MX Records1 records 232ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	siconstruction-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 2a01:111:f403:ca09::f	mail-db4pr02cu00307.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 309ms

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

📝 TXT Records2 records 635ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC328ms

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

🏷️ SOA215ms

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

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

255ms

A

297ms

MX

232ms

AAAA

249ms

TXT

635ms

CAA

204ms

HTTPS

246ms

TLSA

907ms

SOA

215ms

MTA-STS

235ms

DNSSEC

328ms

SRV

309ms

Total

2648ms

🕐 Scan History

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