assist2u.dk

📜 Historical scan 2026-09-15 03:34:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

assist2u.dk is a .dk domain served by 2 nameservers (curt.ns.cloudflare.com, georgia.ns.cloudflare.com). It was registered on 8 February 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.24.74 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by assist2u-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 87ms

Nameserver	IP addresses	PTR	ASN / ISP
curt.ns.cloudflare.com	108.162.193.94 172.64.33.94 173.245.59.94 2606:4700:58::adf5:3b5e 2803:f800:50::6ca2:c15e 2a06:98c1:50::ac40:215e	curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
georgia.ns.cloudflare.com	108.162.194.48 162.159.38.48 172.64.34.48 2606:4700:50::a29f:2630 2803:f800:50::6ca2:c230 2a06:98c1:50::ac40:2230	georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.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 138ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.24.74	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.217.198	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 112ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	assist2u-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::c 2a01:111:f403:ca09::28 2a01:111:f403:ca38::a 52.101.209.28 52.101.68.29 52.101.73.155 52.101.91.162	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am7pr02cu00203.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	104.21.24.74
🔶 Autoconfig	172.67.217.198

🔷 AAAA Records (IPv6)#

2 records 121ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:184a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:d9c6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 92ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.24.74,172.67.217.198 ech=AEX+DQBBVgAgACDLfFBrUMWcqtVMnuk4YnGU5ThldCqi/G5KvuRxGwMOTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:184a,2606:4700:3036::ac43:d9c6

📝 TXT Records#

2 records 263ms

TXT Record
MS=ms50588916
v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (assist2u.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com include:spf.protection.outlook.com ~all

📨 DMARC#

Policy	Record (_dmarc.assist2u.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@assist2u.dk; ruf=mailto:dmarc@assist2u.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 2026-10-11 18:02:32

www	104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network assist2u.dk: 104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335) www.assist2u.dk: 104.21.24.74 172.67.217.198 2606:4700:3035::6815:184a 2606:4700:3036::ac43:d9c6 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-assist2u-dk._domainkey.assist2u.onmicrosoft.com	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.assist2u.dk	YJhnYy38cUAtdBsm7hYr77AFqAhTDP6GOIFBbHxHTYI
TXT	_acme-challenge.assist2u.dk	unEn4F2XWbRRjLJ3OfXqQZGvdhezqn2y3pd3lzhDoCk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

182ms

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	2414756301
Primary NS (MNAME)	curt.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 18:18:34

Field	Value
Registrar	ONE.COM A/S
Registered	2024-02-08
Expires	2027-02-07 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

87ms

138ms

112ms

AAAA

121ms

TXT

263ms

CAA

84ms

HTTPS

92ms

TLSA

428ms

SOA

0ms

MTA-STS

109ms

DNSSEC

182ms

SRV

144ms

Total

2514ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 18:02:32	3372ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-10 17:36:27	1094ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-17 18:15:45	4087ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 03:34:59 shown	2514ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-14 04:44:20	2256ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-12 08:22:04	5793ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 03:45:32	1390ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 22:22:53	6763ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 06:45:32	1175ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 16:22:36	832ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 13:50:21	2065ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 13:46:38	3219ms	2 NS 2 A 1 MX	🔓 Insecure