co2iso.dk DNS records

🖥️ Nameservers5 records 190ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.gigahost.dk	46.183.139.31	ns1.gigahost.dk	AS47292 Sentia Denmark A/S
ns2.gigahost.dk	46.183.139.222	web22.gigahost.dk	AS47292 Sentia Denmark A/S
ns3.gigahost.dk	71.19.249.71	ns3.gigahost.dk	AS11831 eSecureData
ns4.gigahost.dk	51.79.215.130	ns4.gigahost.dk	AS16276 OVH SAS
ns5.gigahost.dk	77.74.192.83	ns5.gigahost.dk	AS42831 UK Dedicated Servers Limited

🌍 A Records1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	3600s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 187ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	co2iso-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::c 2a01:111:f403:ca09::26 2a01:111:f403:ca21::e 52.101.103.36 52.101.68.0 52.101.68.18 52.101.73.19	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.40
🔶 Autoconfig	co2iso.dk → 46.183.138.100

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 215ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk

📝 TXT Records2 records 164ms

TXT Record
MS=ms38522819
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (co2iso.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.co2iso.dk)
p=reject	v=DMARC1; p=reject;
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@co2iso.dk; 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.co2iso.dk	co2iso.dk

🔗 TLSA / DANE

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

🔐 DNSSEC257ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2026090301
Primary NS (MNAME)	ns1.gigahost.dk
Responsible (RNAME)	hostmaster@co2iso.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 RegistrationWHOIS fetched 2026-09-03 16:31:24

Field	Value
Registrar	GIGAHOST ApS
Registered	2025-10-06
Expires	2028-10-05 (760d)

📋 WHOIS

⏱️ Lookup Timing

NS

190ms

A

33ms

MX

187ms

AAAA

49ms

TXT

164ms

CAA

179ms

HTTPS

37ms

TLSA

768ms

SOA

0ms

MTA-STS

199ms

DNSSEC

257ms

SRV

215ms

Total

1489ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-03 16:30:54	1489ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 05:27:58	1014ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 09:46:21	1882ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-13 11:36:47	4893ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-07 07:11:34	2488ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-08-03 05:50:32	2731ms	5 NS 1 A 1 MX	❓ Unknown	View
2026-07-23 12:47:40	2445ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-17 02:31:00	3545ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-10 00:29:03	1857ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-07-03 20:07:33	2057ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-28 01:50:33	1139ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-23 16:45:05	1096ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 18:40:33	2166ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:50:50	65535ms	5 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 21:35:33	721ms	5 NS 1 A 1 MX	🔓 Insecure	View