co2improve.dk DNS records

🖥️ Nameservers3 records 48ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.sqr.nl	109.235.73.236 2a01:518:ffff:4020::53:3	ns1.dns.sqr.cyso.net ns1.dns.sqr.cyso.net	AS25151 Cyso Group B.V. AS25151 Cyso Group B.V.
ns2.sqr.domains	2a01:518:ffff:4020::53:4 93.94.227.166	ns2.dns.sqr.cyso.net ns2.dns.sqr.cyso.net	AS25151 Cyso Group B.V. AS25151 Cyso Group B.V.
ns3.sqr.cloud	2a03:6000:1002:1002::54 46.23.87.195	ns3.sqr.cloud ns3.sqr.cloud	AS60131 High5! B.V. AS60131 High5! B.V.

🌍 A Records1 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.46.140.9	3600s	web103.shared.hosting-login.net	AS25151	Cyso Group B.V.	37.46.136.0/21	🇳🇱 The Netherlands	—

📧 MX Records2 records 88ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.antispam-login.net	2a01:518:1:42:8::132 2a01:518:1:42:8::133 93.94.228.132 93.94.228.133	filter1.antispam-login.net filter2.antispam-login.net filter1.antispam-login.net filter2.antispam-login.net	AS25151 Cyso Group B.V. AS25151 Cyso Group B.V. AS25151 Cyso Group B.V. AS25151 Cyso Group B.V.
20	3600s	mx2.antispam-login.net	2a01:518:1:42:8::132 2a01:518:1:42:8::133 93.94.228.132 93.94.228.133	filter1.antispam-login.net filter2.antispam-login.net filter1.antispam-login.net filter2.antispam-login.net	AS25151 Cyso Group B.V. AS25151 Cyso Group B.V. AS25151 Cyso Group B.V. AS25151 Cyso Group B.V.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	co2improve.dk → 37.46.140.9
🔶 Autoconfig	co2improve.dk → 37.46.140.9

🔷 AAAA Records (IPv6)1 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:518:1:1041::9	3600s	web103.shared.hosting-login.net	AS25151	Cyso Group B.V.	2a01:518:0:0:0:0:0:0/32	🇳🇱 The Netherlands	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 269ms

TXT Record
v=spf1 include:spf.sqr.nl -all

✉️ SPF

Policy	Record (co2improve.dk)
-all (hard fail)	v=spf1 include:spf.sqr.nl -all

📨 DMARC

Policy	Record (_dmarc.co2improve.dk)
p=reject	v=DMARC1; p=reject;

📬 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.co2improve.dk	co2improve.dk

🔗 TLSA / DANE2 records 194ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.antispam-login.net	DANE-EE · SPKI · SHA-256	1FDB1C74A3A6D6C5990A38291982DC61…
SMTP _25._tcp.mx2.antispam-login.net	DANE-EE · SPKI · SHA-256	1FDB1C74A3A6D6C5990A38291982DC61…

🔐 DNSSEC93ms

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

🏷️ SOA46ms

Field	Value
Serial	2026040701
Primary NS (MNAME)	ns1.sqr.nl
Responsible (RNAME)	hostmaster@co2improve.dk
Refresh	3600s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

48ms

A

55ms

MX

88ms

AAAA

50ms

TXT

269ms

CAA

66ms

HTTPS

77ms

TLSA

194ms

SOA

46ms

MTA-STS

60ms

DNSSEC

93ms

SRV

91ms

Total

1429ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-28 03:49:37	1429ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-27 12:45:14	1319ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-20 03:44:35	1356ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 21:48:41	65535ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 21:40:04	2105ms	3 NS 1 A 2 MX	🔓 Insecure	View
2026-06-16 21:30:47	772ms	3 NS 1 A 2 MX	🔓 Insecure	View