sergej.dk

📜 Historical scan 2026-08-31 10:36:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sergej.dk is a .dk domain served by 2 nameservers (demi.ns.cloudflare.com, remy.ns.cloudflare.com). It was registered on 28 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.140.166 is hosted by Cloudflare, Inc. (AS13335) in United States. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, 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 122ms

Nameserver	IP addresses	PTR	ASN / ISP
demi.ns.cloudflare.com	108.162.192.95 172.64.32.95 173.245.58.95 2606:4700:50::adf5:3a5f 2803:f800:50::6ca2:c05f 2a06:98c1:50::ac40:205f	demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com demi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
remy.ns.cloudflare.com	108.162.195.115 162.159.44.115 172.64.35.115 2606:4700:58::a29f:2c73 2803:f800:50::6ca2:c373 2a06:98c1:50::ac40:2373	remy.ns.cloudflare.com remy.ns.cloudflare.com remy.ns.cloudflare.com remy.ns.cloudflare.com remy.ns.cloudflare.com remy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 106ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.140.166	600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—

📧 MX Records#

1 records 87ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	smtp.google.com	142.251.127.26 142.251.127.27 2a00:1450:4001:c21::1a 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	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#

2 records 413ms

TXT Record
google-site-verification=dTK3zwWj_AgLCL3v5BlmZwaED4l97HDo1v3tC-xfUdI
v=spf1 include:_spf.google.com include:mailgun.org include:spf.leadconnectorhq.com ~all

✉️ SPF#

Policy	Record (sergej.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:mailgun.org include:spf.leadconnectorhq.com ~all

📨 DMARC#

Policy	Record (_dmarc.sergej.dk)
p=quarantine	v=DMARC1; p=quarantine

📬 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 2026-10-21 03:12:59

www CNAME	sites.ludicrous.cloud (all on ludicrous.cloud) → 104.18.35.90 172.64.152.166 2606:4700:440b::ac40:98a6 2a06:98c1:3102::6812:235a (AS13335)
www vs bare domain	Same network sergej.dk: 162.159.140.166 (AS13335) www.sergej.dk: 104.18.35.90 172.64.152.166 2606:4700:440b::ac40:98a6 2a06:98c1:3102::6812:235a (AS13335)
Wildcard	No

✍️ 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: 7/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.sergej.dk	4Cc4eWY2l9DgZuzQ-W4Qml9wkS74FA1ozAHyGRPtI0Q
TXT	_acme-challenge.sergej.dk	J0lG5-d-luAUcsns6AD6uFtTvQ-4f1avbraGgm6qJrg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

271ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413611756
Primary NS (MNAME)	demi.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 01:47:26

Field	Value
Registrar	ONE.COM A/S
Registered	2024-08-28
Expires	2027-08-27 (310d)

📋 WHOIS#

⏱️ Lookup Timing#

122ms

106ms

87ms

AAAA

146ms

TXT

413ms

CAA

55ms

HTTPS

131ms

TLSA

168ms

SOA

0ms

MTA-STS

177ms

DNSSEC

271ms

SRV

197ms

Total

1868ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 03:12:59	606ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-07 19:45:35	932ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-05 01:25:32	731ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 01:12:42	555ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 22:01:13	684ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 00:54:43	687ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-18 09:27:51	1704ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-03 19:29:46	478ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-31 10:36:00 shown	1868ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-08 05:26:51	1432ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 11:13:16	1201ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 14:19:44	1657ms	2 NS 1 A 1 MX	🔓 Insecure