exstream.dk

📜 Historical scan 2026-09-08 09:29:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

exstream.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 31 May 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.25 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx.spamfilter.io. 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.25	3600s	prolinux101.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.spamfilter.io	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.webexchange.nu → 212.237.249.80

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 137ms

TXT Record
v=spf1 ip4:185.21.42.25 include:spf.curanet.dk -all

✉️ SPF#

Policy	Record (exstream.dk)
-all (hard fail)	v=spf1 ip4:185.21.42.25 include:spf.curanet.dk -all

📨 DMARC#

Policy	Record (_dmarc.exstream.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#

latest probe, not this scan · checked 2026-10-09 12:04:02

www CNAME	exstream.dk (all on exstream.dk) → 185.21.42.25 (AS48854)
www vs bare domain	Same network exstream.dk: 185.21.42.25 (AS48854) www.exstream.dk: 185.21.42.25 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

1 records 53ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.spamfilter.io	DANE-EE · SPKI · SHA-256	9A25F05F2E322DABDCC9B7A06AB47A2D…

🔐 DNSSEC#

76ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2025021401
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-17 05:25:43

Field	Value
Registrar	CURANET A/S
Registered	1999-05-31
Expires	2034-06-30 (2813d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
backpack.dk	CURANET A/S
slamsug.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

32ms

43ms

AAAA

43ms

TXT

137ms

CAA

25ms

HTTPS

46ms

TLSA

53ms

SOA

0ms

MTA-STS

46ms

DNSSEC

76ms

SRV

52ms

Total

587ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:04:02	1195ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 06:23:39	416ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 09:29:49 shown	587ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 12:22:45	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 14:24:49	1583ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:55:50	658ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-17 09:09:51	1316ms	2 NS 1 A 1 MX	🔒 Secure