kelbergtech.dk DNS records

🖥️ Nameservers2 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
fred.ns.cloudflare.com	108.162.193.113 172.64.33.113 173.245.59.113 2606:4700:58::adf5:3b71 2803:f800:50::6ca2:c171 2a06:98c1:50::ac40:2171	fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com fred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ines.ns.cloudflare.com	108.162.192.164 172.64.32.164 173.245.58.164 2606:4700:50::adf5:3aa4 2803:f800:50::6ca2:c0a4 2a06:98c1:50::ac40:20a4	ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.188	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.136.201	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.tutanota.de	185.205.69.211 185.205.69.213 185.205.69.214	mail.w11.tutanota.de mail.w13.tutanota.de mail.w14.tutanota.de	AS210909 Tutao GmbH AS210909 Tutao GmbH AS210909 Tutao GmbH

🔷 AAAA Records (IPv6)2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:30bc	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:88c9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.188,172.67.136.201 ech=AEX+DQBB7wAgACBE1Eqlr/7DkDPvKduVzDj+mly51qFBYNzqLjPAl1sZfQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:30bc,2606:4700:3037::ac43:88c9

📝 TXT Records3 records 252ms

TXT Record
google-site-verification=3Ob7AmNihZJzZQFWSfMZH21w365dO0XezrdubgW_itg
t-verify=9920b79b55a8c5a2c923430fff90d0f1
v=spf1 include:spf.tutanota.de -all

✉️ SPF

Policy	Record (kelbergtech.dk)
-all (hard fail)	v=spf1 include:spf.tutanota.de -all

📨 DMARC

Policy	Record (_dmarc.kelbergtech.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s

📬 MTA-STS266ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20190723
max_age	86400s
Policy MX	mail.tutanota.de

📈 TLSRPT

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records

✗ No CAA records — any CA may issue certificates

🔗 TLSA / DANE1 records 131ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.tutanota.de	DANE-EE · Full cert · SHA-256	D141F8F3A4AAC2E4D2677AAFCC723D8E…

🔐 DNSSEC85ms

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

🏷️ SOA0ms

Field	Value
Serial	2411694945
Primary NS (MNAME)	fred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

34ms

A

47ms

MX

33ms

AAAA

40ms

TXT

252ms

CAA

45ms

HTTPS

55ms

TLSA

131ms

SOA

0ms

MTA-STS

266ms

DNSSEC

85ms

SRV

70ms

Total

830ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:34:48	830ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 05:19:38	977ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-09 21:48:34	2097ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-17 04:20:06	1687ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-12 17:14:38	2933ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-27 01:46:34	1281ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-19 23:57:49	727ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 13:19:20	1172ms	2 NS 2 A 1 MX	🔒 Secure	View