co2improve.dk

Records from scan: 2026-06-28 03:49:37 · 1429ms total · last checked 2026-10-16 13:21 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

co2improve.dk is a .dk domain served by 3 nameservers (ns1.sqr.nl, ns2.sqr.domains, ns3.sqr.cloud). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.46.140.9 is hosted by Cyso Group B.V. (AS25151) in The Netherlands. Mail is handled by mx1.antispam-login.net, mx2.antispam-login.net. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 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 Records#

1 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 Records#

2 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 Records#

1 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

🧩 Web & zone#

checked 2026-10-11 00:57:37

www CNAME	co2improve.dk (all on co2improve.dk) → 37.46.140.9 2a01:518:1:1041::9 (AS25151)
www vs bare domain	Same network co2improve.dk: 37.46.140.9 2a01:518:1:1041::9 (AS25151) www.co2improve.dk: 37.46.140.9 2a01:518:1:1041::9 (AS25151)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.co2improve.dk	co2improve.dk

🔗 TLSA / DANE#

2 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…

🔐 DNSSEC#

93ms

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

🏷️ SOA#

46ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

48ms

55ms

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 shown	1429ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-27 12:45:14	1319ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-20 03:44:35	1356ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-16 21:48:41	65535ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-16 21:40:04	2105ms	3 NS 1 A 2 MX	🔓 Insecure
2026-06-16 21:30:47	772ms	3 NS 1 A 2 MX	🔓 Insecure