rstera.dk

📜 Historical scan 2026-09-04 05:49:02 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rstera.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 January 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 95.179.190.117 is hosted by The Constant Company, LLC (AS20473) in The Netherlands. Mail is handled by mx.petertoft.dk. 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 26ms

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 Records#

1 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
95.179.190.117	600s	mx.petertoft.dk	AS20473	The Constant Company, LLC	95.179.128.0/17	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 26ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx.petertoft.dk	95.179.190.117	mx.petertoft.dk	AS20473 The Constant Company, LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 118ms

TXT Record
v=spf1 a mx ip4:95.179.190.117 ~all

✉️ SPF#

Policy	Record (rstera.dk)
~all (soft fail)	v=spf1 a mx ip4:95.179.190.117 ~all

📨 DMARC#

Policy	Record (_dmarc.rstera.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:pto@linuxbog.dk; ruf=mailto:peter.toft@gmail.com

📬 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 10:48:32

www	95.179.190.117 (AS20473) (address records, no CNAME)
www vs bare domain	Same network rstera.dk: 95.179.190.117 (AS20473) www.rstera.dk: 95.179.190.117 (AS20473)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

113ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026090101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-03 07:56:12

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-01-29
Expires	2027-01-31 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

26ms

37ms

26ms

AAAA

32ms

TXT

118ms

CAA

39ms

HTTPS

25ms

TLSA

288ms

SOA

0ms

MTA-STS

39ms

DNSSEC

113ms

SRV

42ms

Total

709ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:48:32	1143ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 07:44:06	598ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 05:00:08	933ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 05:49:02 shown	709ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-25 19:21:09	778ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 14:22:12	755ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 15:31:36	654ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 12:15:31	685ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 15:11:03	3001ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 14:23:19	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 17:02:22	1047ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:11:34	1815ms	2 NS 1 A 1 MX	🔒 Secure