careermentor.dk

Records from scan: 2026-09-21 00:26:34 · 802ms total · last checked 2026-10-18 16:07 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

careermentor.dk is a .dk domain served by 2 nameservers (ivan.ns.cloudflare.com, leah.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.213 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.unoeuro.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 39ms

Nameserver	IP addresses	PTR	ASN / ISP
ivan.ns.cloudflare.com	108.162.193.120 172.64.33.120 173.245.59.120 2606:4700:58::adf5:3b78 2803:f800:50::6ca2:c178 2a06:98c1:50::ac40:2178	ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com ivan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
leah.ns.cloudflare.com	108.162.192.129 172.64.32.129 173.245.58.129 2606:4700:50::adf5:3a81 2803:f800:50::6ca2:c081 2a06:98c1:50::ac40:2081	leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.ns.cloudflare.com leah.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.213	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.179.251	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.unoeuro.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.31.213
🔶 Autoconfig	172.67.179.251

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:1fd5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:b3fb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.213,172.67.179.251 ech=AEX+DQBBAwAgACDY1q4/QkaWpiPxoqsa/a/yJK5c7alg7GXzsndILuB7GAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1fd5,2606:4700:3037::ac43:b3fb

🔌 SRV Records#

1 records 64ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.unoeuro.com

📝 TXT Records#

5 records 175ms

TXT Record
firebase=careermentor-da3ae
google-site-verification=JE4K2zVnj8ZuOUA2OZfZDNzTH-bhffc-rW2GCpotUMI
v=spf1 include:_spf.firebasemail.com ~all
v=spf1 include:spf.simply.com -all
v=spf1 include:spf.unoeuro.com ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (careermentor.dk)
~all (soft fail)	v=spf1 include:_spf.firebasemail.com ~all
-all (hard fail)	v=spf1 include:spf.simply.com -all
~all (soft fail)	v=spf1 include:spf.unoeuro.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#

checked 2026-10-07 20:31:11

www	104.21.31.213 172.67.179.251 2606:4700:3030::6815:1fd5 2606:4700:3037::ac43:b3fb (AS13335) (address records, no CNAME)
www vs bare domain	Same network careermentor.dk: 104.21.31.213 172.67.179.251 2606:4700:3030::6815:1fd5 2606:4700:3037::ac43:b3fb (AS13335) www.careermentor.dk: 104.21.31.213 172.67.179.251 2606:4700:3030::6815:1fd5 2606:4700:3037::ac43:b3fb (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u12304299.wl050.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u12304299.wl050.sendgrid.net	RSA · ~1024 bit below 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: 4/10 · policy: ~all

error 3 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

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	2415028636
Primary NS (MNAME)	ivan.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#

39ms

42ms

35ms

AAAA

39ms

TXT

175ms

CAA

32ms

HTTPS

32ms

TLSA

157ms

SOA

0ms

MTA-STS

49ms

DNSSEC

112ms

SRV

64ms

Total

802ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-21 00:26:34 shown	802ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-15 14:18:09	923ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-18 17:27:48	2796ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-17 01:46:46	872ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-15 22:18:29	1729ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 17:01:56	1465ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-20 15:06:17	629ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 19:26:36	389ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-16 19:21:00	572ms	2 NS 2 A 1 MX	🔓 Insecure