jeresstudietur.dk DNS records

🖥️ Nameservers2 records 64ms

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.
zita.ns.cloudflare.com	108.162.192.243 172.64.32.243 173.245.58.243 2606:4700:50::adf5:3af3 2803:f800:50::6ca2:c0f3 2a06:98c1:50::ac40:20f3	zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com zita.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.15.52	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.161.182	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records3 records 91ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
61	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
87	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
89	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)2 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::ac43:a1b6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:f34	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 84ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.15.52,172.67.161.182 ech=AEX+DQBBkQAgACC1LvNM9sCVP6fJcVezQMTvL0LLilsvTlcarXL7lWQaOQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:a1b6,2606:4700:3037::6815:f34

📝 TXT Records3 records 286ms

TXT Record
anthropic-domain-verification-4y89v0=p0NYoJfXalaqaKYhZsaL0jpOs
brevo-code:dd6a0548be24ccaeac9a9d2c6fe6f050
v=spf1 include:_spf.mx.cloudflare.net include:spf.brevo.com ~all

✉️ SPF

Policy	Record (jeresstudietur.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net include:spf.brevo.com ~all

📨 DMARC

Policy	Record (_dmarc.jeresstudietur.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.jeresstudietur.dk	e0mkmLtkCv8DV8h8mkvwTVDB1TlR-s8Ztze_ddBT82I
TXT	_acme-challenge.jeresstudietur.dk	QaLifRGG4FNMLTpt6jtUz-XlW_CGRw_mi_EcEdnRia0

🔗 TLSA / DANE9 records 181ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC209ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2413747968
Primary NS (MNAME)	curt.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

64ms

A

88ms

MX

91ms

AAAA

56ms

TXT

286ms

CAA

113ms

HTTPS

84ms

TLSA

181ms

SOA

0ms

MTA-STS

162ms

DNSSEC

209ms

SRV

135ms

Total

1848ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-01 19:46:46	1848ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-30 17:39:52	2830ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-27 10:27:24	1351ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-26 20:37:44	3226ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-24 05:29:26	2023ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-08-15 17:21:10	10038ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-07-24 14:47:56	2181ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-06-26 14:48:37	1100ms	2 NS 2 A 3 MX	🔓 Insecure	View
2026-06-24 05:39:33	1112ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 23:42:43	1465ms	2 NS 2 A 3 MX	🔓 Insecure	View