dcsl.dk DNS records

🖥️ Nameservers4 records 6ms

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 3ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.62.98.28	86400s	0x573e621c.static.cust.fastspeed.dk	AS3292	TDC Holding A/S	87.62.0.0/15	🇩🇰 Denmark	Fredericia

📧 MX Records1 records 3ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mail.dcsl.dk	2a09:5e41:856:1a0:5054:ff:fe13:5bae 87.62.98.28	— 0x573e621c.static.cust.fastspeed.dk	AS209424 Fastspeed A/s AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)1 records 17ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a09:5e41:856:1a0:5054:ff:fe1d:a2cf	44187s	—	AS209424	Fastspeed A/s	2a09:5e41:800::/37	🇩🇰 Denmark	Aalborg

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 33ms

TXT Record
v=spf1 ip4:87.62.98.28 ip6:2a09:5e41:856:1a0:5054:ff:fe13:5bae -all

✉️ SPF

Policy	Record (dcsl.dk)
-all (hard fail)	v=spf1 ip4:87.62.98.28 ip6:2a09:5e41:856:1a0:5054:ff:fe13:5bae -all

📨 DMARC

Policy	Record (_dmarc.dcsl.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:reports@dcsl.dk; ruf=mailto:reports@dcsl.dk; fo=0; adkim=s; aspf=s; pct=100; rf=afrf; ri=86400; sp=reject

📬 MTA-STS170ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20260408170809
max_age	2419200s
Policy MX	mail.dcsl.dk

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:reports@dcsl.dk

📜 CAA Records2 records 16ms

Flags	Tag	Value
0	iodef	mailto:hostmaster@dcsl.dk
0	issue	letsencrypt.org

🔗 TLSA / DANE2 records 127ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mail.dcsl.dk	DANE-EE · SPKI · SHA-256	8BE928578B0FB67822C2BA8A76B4B8DA…
HTTPS _443._tcp.dcsl.dk	DANE-EE · SPKI · SHA-256	67540F88011D976AF1D90571ABFD0EF8…

🔐 DNSSEC115ms

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

Key type	Algorithm	Public key
KSK	ECDSA P-256/SHA-256	HQRBHSgHDQ8MuG5l5j9WulYC8+JMedxICg+AuD0n…

🏷️ SOA2ms

Field	Value
Serial	2026080300
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

6ms

A

3ms

MX

3ms

AAAA

17ms

TXT

33ms

CAA

16ms

HTTPS

29ms

TLSA

127ms

SOA

2ms

MTA-STS

170ms

DNSSEC

115ms

SRV

0ms

Total

800ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-16 18:45:34	800ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 16:42:45	1594ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-08 23:11:01	928ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 01:23:54	513ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 01:21:08	837ms	4 NS 1 A 1 MX	🔒 Secure	View