sendbrev.dk DNS records

🖥️ Nameservers2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
ben.ns.cloudflare.com	108.162.193.103 172.64.33.103 173.245.59.103 2606:4700:58::adf5:3b67 2803:f800:50::6ca2:c167 2a06:98c1:50::ac40:2167	ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
olga.ns.cloudflare.com	108.162.192.137 172.64.32.137 173.245.58.137 2606:4700:50::adf5:3a89 2803:f800:50::6ca2:c089 2a06:98c1:50::ac40:2089	olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com olga.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.80.241	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.155.153	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.155.153
🔶 Autoconfig	104.21.80.241

🔷 AAAA Records (IPv6)2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:50f1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9b99	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.80.241,172.67.155.153 ech=AEX+DQBBXQAgACDPXcaw91IltW5v/mfQPPqNzYoyl38YV4ifOY7tlervNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:50f1,2606:4700:3036::ac43:9b99

📝 TXT Records

📝

No TXT records found

✉️ SPF

✗ No SPF record — mail spoofing not restricted

📨 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

🔗 TLSA / DANE

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

🔐 DNSSEC101ms

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	2408182723
Primary NS (MNAME)	ben.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

27ms

A

33ms

MX

34ms

AAAA

34ms

TXT

175ms

CAA

37ms

HTTPS

43ms

TLSA

44ms

SOA

0ms

MTA-STS

61ms

DNSSEC

101ms

SRV

75ms

Total

747ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 05:32:32	686ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-27 06:45:43	550ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 06:43:53	683ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-19 16:53:40	5713ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-18 16:52:24	976ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-05 18:28:08	961ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-04 13:55:29	1247ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-30 19:10:53	747ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 09:48:49	2679ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 07:10:01	1152ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 19:55:55	916ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 04:04:13	809ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-18 01:27:08	1237ms	2 NS 2 A 0 MX	🔓 Insecure	View