niklasdue.dk DNS records

🖥️ Nameservers4 records 296ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 328ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	3600s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records1 records 304ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
9	3600s	mx.sendgrid.net	13.216.54.185 15.222.160.229 16.52.110.174 16.52.61.209 18.224.101.244 3.136.245.72 3.17.120.38 34.198.67.24 44.216.124.122 44.245.249.202 52.25.213.239 52.37.49.26	ec2-13-216-54-185.compute-1.amazonaws.com ec2-15-222-160-229.ca-central-1.compute.amazonaws.com ec2-16-52-110-174.ca-central-1.compute.amazonaws.com ec2-16-52-61-209.ca-central-1.compute.amazonaws.com ec2-18-224-101-244.us-east-2.compute.amazonaws.com ec2-3-136-245-72.us-east-2.compute.amazonaws.com ec2-3-17-120-38.us-east-2.compute.amazonaws.com ec2-34-198-67-24.compute-1.amazonaws.com ec2-44-216-124-122.compute-1.amazonaws.com ec2-44-245-249-202.us-west-2.compute.amazonaws.com ec2-52-25-213-239.us-west-2.compute.amazonaws.com ec2-52-37-49-26.us-west-2.compute.amazonaws.com	AS14618 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS14618 Amazon.com, Inc. AS14618 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 363ms

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

📝 TXT Records3 records 590ms

TXT Record
google-site-verification=VpQzvM-zlTSt95cE5ErQbkM24UZ4CGEUyHsVmRZtphM
MS=ms98052595
v=spf1 include:spf.simply.com -all

✉️ SPF

Policy	Record (niklasdue.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.niklasdue.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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

🔗 TLSA / DANE

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

🔐 DNSSEC534ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080802
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

296ms

A

328ms

MX

304ms

AAAA

310ms

TXT

590ms

CAA

281ms

HTTPS

256ms

TLSA

222ms

SOA

0ms

MTA-STS

391ms

DNSSEC

534ms

SRV

363ms

Total

5982ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-09 16:45:34	5982ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 22:28:14	1435ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 11:50:04	3199ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 00:26:17	2775ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 15:22:29	765ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 17:59:38	772ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 15:12:02	827ms	4 NS 1 A 1 MX	❓ Unknown	View