sebg.dk

📜 Historical scan 2026-09-30 13:22:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sebg.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 15 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.204.112.174 is hosted by Google LLC (AS396982) in The Netherlands. Mail is handled by smtp.google.com. 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 36ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.204.112.174	3600s	174.112.204.35.bc.googleusercontent.com	AS396982	Google LLC	35.204.0.0/15	🇳🇱 The Netherlands	Groningen

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	173.194.220.27 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 2a00:1450:4010:c06::1a 2a00:1450:4010:c06::1a 2a00:1450:4010:c06::1b 2a00:1450:4010:c06::1b 64.233.162.26 64.233.162.27 64.233.163.26 64.233.163.27	lk-in-f27.1e100.net li-in-f26.1e100.net li-in-x1a.1e100.net li-in-f27.1e100.net li-in-x1b.1e100.net lj-in-f26.1e100.net lj-in-x1a.1e100.net lj-in-x1b.1e100.net lj-in-f27.1e100.net li-in-f26.1e100.net li-in-f27.1e100.net lj-in-f26.1e100.net lj-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 152ms

TXT Record
google-site-verification=SpzptFbTTK3v9swxwR_mAewWRmyCOX7B_4I2dL52UFA
mailerlite-domain-verification=198c0f2e703f0a10a8fa0d69df70d08b71923e48
v=spf1 include:_spf.mlsend.com include:_spf.google.com ~all

✉️ SPF#

Policy	Record (sebg.dk)
~all (soft fail)	v=spf1 include:_spf.mlsend.com include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.sebg.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@sebg.dk; pct=100; adkim=s; aspf=s

📬 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 2026-10-07 16:05:10

www CNAME	pages.mailerlite.com (all on mailerlite.com) → 35.204.112.174 (AS396982)
www vs bare domain	Same network sebg.dk: 35.204.112.174 (AS396982) www.sebg.dk: 35.204.112.174 (AS396982)
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
google	—	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#

63ms

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

🏷️ SOA#

52ms

Field	Value
Serial	2026092901
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 2026-09-30 14:47:21

Field	Value
Registrar	ONE.COM A/S
Registered	2006-03-15
Expires	2027-03-31 (162d)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

30ms

44ms

AAAA

33ms

TXT

152ms

CAA

34ms

HTTPS

28ms

TLSA

140ms

SOA

52ms

MTA-STS

67ms

DNSSEC

63ms

SRV

55ms

Total

561ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 13:45:26	2074ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:22:56 shown	561ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 02:37:07	823ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-28 02:09:59	1236ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 14:59:49	1043ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-30 20:15:26	1176ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 19:54:19	2513ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-21 22:31:43	714ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 11:50:05	1745ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 12:04:53	1653ms	2 NS 1 A 1 MX	🔓 Insecure