day21.dk DNS records

🖥️ Nameservers4 records 49ms

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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.223.52.2	3600s	a0b1d980e1f2226c6.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	52.223.0.0/17	🇺🇸 United States	—

📧 MX Records5 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4010:c0e::1b 2a00:1450:4010:c0e::1b 64.233.165.26	lu-in-x1b.1e100.net lu-in-f27.1e100.net lg-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	alt4.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	35.71.142.77
🔶 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 92ms

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

📝 TXT Records3 records 184ms

TXT Record
MS=ms68933028
proxy-ssl.webflow.com
v=spf1 a include:spf.simply.com include:_spf.google.com -all

✉️ SPF

Policy	Record (day21.dk)
-all (hard fail)	v=spf1 a include:spf.simply.com include:_spf.google.com -all

📨 DMARC

Policy	Record (_dmarc.day21.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@n4uecdqr.uriports.com; pct=100; adkim=s; aspf=r

📬 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)

🔐 DNSSEC97ms

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

🏷️ SOA0ms

Field	Value
Serial	2024051301
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

49ms

A

43ms

MX

65ms

AAAA

43ms

TXT

184ms

CAA

57ms

HTTPS

41ms

TLSA

86ms

SOA

0ms

MTA-STS

86ms

DNSSEC

97ms

SRV

92ms

Total

1064ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 12:48:25	1064ms	4 NS 1 A 5 MX	🔒 Secure	View
2026-06-26 06:39:11	915ms	4 NS 1 A 5 MX	🔒 Secure	View
2026-06-24 23:50:14	1466ms	4 NS 1 A 5 MX	🔒 Secure	View
2026-06-23 21:30:34	4558ms	4 NS 1 A 5 MX	🔒 Secure	View
2026-06-21 23:20:13	935ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 01:11:03	922ms	4 NS 1 A 5 MX	🔒 Secure	View