nielstm.dk

📜 Historical scan 2026-09-18 12:42:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nielstm.dk is a .dk domain served by 2 nameservers (gabriella.ns.cloudflare.com, mitch.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.82.167 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by nielstm-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 88ms

Nameserver	IP addresses	PTR	ASN / ISP
gabriella.ns.cloudflare.com	108.162.194.134 162.159.38.134 172.64.34.134 2606:4700:50::a29f:2686 2803:f800:50::6ca2:c286 2a06:98c1:50::ac40:2286	gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com gabriella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mitch.ns.cloudflare.com	108.162.193.208 172.64.33.208 173.245.59.208 2606:4700:58::adf5:3bd0 2803:f800:50::6ca2:c1d0 2a06:98c1:50::ac40:21d0	mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com mitch.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 103ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.82.167	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.159.211	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 202ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	nielstm-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::e 2a01:111:f403:ca09::28 2a01:111:f403:ca48::a 52.101.68.36 52.101.73.126 52.101.73.153 52.101.91.162	mail-du0pr03cu00102.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.82.167

🔷 AAAA Records (IPv6)#

2 records 123ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:52a7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9fd3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 119ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.82.167,172.67.159.211 ech=AEX+DQBBAgAgACBCXOrAICe3hNz4bsTNOZlO85T5qeQ6Kz+UixdFbimmTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:52a7,2606:4700:3036::ac43:9fd3

🔌 SRV Records#

1 records 197ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

1 records 283ms

TXT Record
v=spf1 a include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (nielstm.dk)
-all (hard fail)	v=spf1 a include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-08 11:40:40

www	104.21.82.167 172.67.159.211 2606:4700:3033::6815:52a7 2606:4700:3036::ac43:9fd3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network nielstm.dk: 104.21.82.167 172.67.159.211 2606:4700:3033::6815:52a7 2606:4700:3036::ac43:9fd3 (AS13335) www.nielstm.dk: 104.21.82.167 172.67.159.211 2606:4700:3033::6815:52a7 2606:4700:3036::ac43:9fd3 (AS13335)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u34239818.wl069.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u34239818.wl069.sendgrid.net	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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.nielstm.dk	3Fljmmzy8gi85TAE4aahIh1J-G_OXryKUC3norgsWrc
TXT	_acme-challenge.nielstm.dk	wgY6gVnfOIxV-ds4bSHpa1Q-iYrN2pV_9fQoR7DE3Xc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

206ms

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	2415115422
Primary NS (MNAME)	gabriella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

88ms

103ms

202ms

AAAA

123ms

TXT

283ms

CAA

194ms

HTTPS

119ms

TLSA

198ms

SOA

0ms

MTA-STS

138ms

DNSSEC

206ms

SRV

197ms

Total

1118ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 07:25:59	972ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 22:38:26	1129ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 21:10:20	1545ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 20:32:03	9813ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 12:42:13 shown	1118ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 09:15:55	1356ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 14:06:52	788ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 22:14:47	2229ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-19 21:24:54	3001ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-09 07:29:15	2429ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 13:10:14	2851ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 19:41:47	1259ms	2 NS 2 A 1 MX	🔓 Insecure