it-nerd.dk

📜 Historical scan 2026-06-18 00:31:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

it-nerd.dk is a .dk domain served by 2 nameservers (lloyd.ns.cloudflare.com, tess.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.44 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by itnerd-dk0e.y-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a 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 65ms

Nameserver	IP addresses	PTR	ASN / ISP
lloyd.ns.cloudflare.com	108.162.193.197 172.64.33.197 173.245.59.197 2606:4700:58::adf5:3bc5 2803:f800:50::6ca2:c1c5 2a06:98c1:50::ac40:21c5	lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tess.ns.cloudflare.com	108.162.192.227 172.64.32.227 173.245.58.227 2606:4700:50::adf5:3ae3 2803:f800:50::6ca2:c0e3 2a06:98c1:50::ac40:20e3	tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.ns.cloudflare.com tess.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 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.20.44	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.191.85	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
15	—	itnerd-dk0e.y-v1.mx.microsoft	2a01:111:f403:ca04::8 2a01:111:f403:ca09::1 2a01:111:f403:ca09::3 2a01:111:f403:ca09::6 52.101.68.0 52.101.68.21 52.101.73.11 52.101.73.30	mail-db5pr02cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-am7pr05cu00306.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	autodiscover.outlook.com → 52.98.154.152

🔷 AAAA Records (IPv6)#

2 records 65ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:142c	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:bf55	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 59ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.20.44,172.67.191.85 ech=AEX+DQBBXQAgACCKtZprehaOOcZuI8UfRINUiU1H1hp2/GZSIeULHEiwSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:142c,2606:4700:3032::ac43:bf55

🔌 SRV Records#

1 records 299ms

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

📝 TXT Records#

2 records 281ms

TXT Record
MS=ms69535734
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.it-nerd.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:5039ad5068134d16b9f5998ff117baac@dmarc-reports.cloudflare.net,mailto:dmarc.rua@mxbox.dk ; ruf=mailto:dmarc.ruf@mxbox.dk

📬 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 2026-10-17 23:01:13

www	104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (AS13335) (address records, no CNAME)
www vs bare domain	Same network it-nerd.dk: 104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (AS13335) www.it-nerd.dk: 104.21.20.44 172.67.191.85 2606:4700:3032::6815:142c 2606:4700:3033::ac43:bf55 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 83ms

Service / Owner	Type	Cert association
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.itnerd-dk0e.y-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…

🔐 DNSSEC#

148ms

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

🏷️ SOA#

57ms

Field	Value
Serial	2407211889
Primary NS (MNAME)	lloyd.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#

65ms

64ms

59ms

AAAA

65ms

TXT

281ms

CAA

56ms

HTTPS

59ms

TLSA

83ms

SOA

57ms

MTA-STS

37ms

DNSSEC

148ms

SRV

299ms

Total

1305ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 23:01:12	1645ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 22:05:55	1367ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-25 21:56:52	858ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 21:12:57	881ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-10 18:40:50	7071ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-01 14:35:19	9669ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-30 03:04:00	1589ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-19 04:21:54	5729ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-08 23:38:44	1606ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-03 14:06:36	1528ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-16 04:02:11	2323ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 23:41:24	1377ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 00:05:55	830ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 00:31:50 shown	1305ms	2 NS 2 A 1 MX	🔒 Secure