shelterbox.dk DNS records

🖥️ Nameservers2 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
brenda.ns.cloudflare.com	108.162.192.77 172.64.32.77 173.245.58.77 2606:4700:50::adf5:3a4d 2803:f800:50::6ca2:c04d 2a06:98c1:50::ac40:204d	brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com brenda.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
todd.ns.cloudflare.com	108.162.193.146 172.64.33.146 173.245.59.146 2606:4700:58::adf5:3b92 2803:f800:50::6ca2:c192 2a06:98c1:50::ac40:2192	todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com todd.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 55ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.89.122	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.224	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	d236589.a.ess.uk.barracudanetworks.com	18.133.136.186 18.133.136.187 18.133.136.188	mail.ess.uk.barracuda.com mail.ess.uk.barracuda.com mail.ess.uk.barracuda.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
30	300s	d236589.b.ess.uk.barracudanetworks.com	18.133.136.186 18.133.136.187 18.133.136.188	mail.ess.uk.barracuda.com mail.ess.uk.barracuda.com mail.ess.uk.barracuda.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records1 records 59ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.122,172.67.141.224 ech=AEX+DQBBSQAgACCroazjlZoPusoav985mbUuVIPv3RYBlmlh0o2FPT/vCgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA=

🔌 SRV Records1 records 175ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 255ms

TXT Record
MS=ms86030538
v=spf1 ip4:92.207.246.210 include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:europe.o365.crossware.co.nz -all

✉️ SPF

Policy	Record (shelterbox.dk)
-all (hard fail)	v=spf1 ip4:92.207.246.210 include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:europe.o365.crossware.co.nz -all

📨 DMARC

Policy	Record (_dmarc.shelterbox.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email;

📬 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)

🔐 DNSSEC110ms

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	2411699596
Primary NS (MNAME)	brenda.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

69ms

A

55ms

MX

56ms

AAAA

41ms

TXT

255ms

CAA

51ms

HTTPS

59ms

TLSA

119ms

SOA

0ms

MTA-STS

94ms

DNSSEC

110ms

SRV

175ms

Total

1019ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 15:38:58	1019ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-10 10:55:15	4687ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-07-17 02:44:00	1439ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-26 06:10:29	2183ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-21 10:33:22	780ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-19 22:50:43	1053ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-17 23:03:58	3064ms	2 NS 2 A 2 MX	🔓 Insecure	View