syslab.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.risoe.dk	130.226.56.67	—	AS1835 IDDQD-AS
ns2.risoe.dk	130.226.56.68	—	AS1835 IDDQD-AS

🌍 A Records1 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.226.56.172	86400s	—	AS1835	IDDQD-AS	130.226.0.0/16	🇩🇰 Denmark	Kongens Lyngby

📧 MX Records3 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	mx1.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
10	86400s	mx2.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC
20	86400s	mx3.spamfilter.cc	2001:19f0:5001:1b34:5400:3ff:fe0e:a8b5 95.179.139.219 95.179.218.56	— 95.179.139.219.vultrusercontent.com 95.179.218.56.vultrusercontent.com	AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC AS20473 The Constant Company, LLC

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 360ms

TXT Record
ABUSE: Please report abuse to postmaster@risoe.dk
v=spf1 mx ip4:192.38.80.0/22 ip4:192.38.91.0/24 ip4:130.225.72.0/23 ip4:192.38.94.2 ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.124 include:spf.peoplexs.com a:filesender.deic.dk include:spf.dtu.dk -all

✉️ SPF

Policy	Record (syslab.dk)
-all (hard fail)	v=spf1 mx ip4:192.38.80.0/22 ip4:192.38.91.0/24 ip4:130.225.72.0/23 ip4:192.38.94.2 ip4:94.231.107.25 ip4:94.231.107.21 ip4:93.90.115.122 ip4:193.162.253.124 include:spf.peoplexs.com a:filesender.deic.dk include:spf.dtu.dk -all

📨 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)

🔐 DNSSEC89ms

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	2026080600
Primary NS (MNAME)	ns1.risoe.dk
Responsible (RNAME)	postmaster@risoe.dk
Refresh	300s
Retry	180s
Expire	1814400s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

59ms

MX

69ms

AAAA

53ms

TXT

360ms

CAA

40ms

HTTPS

65ms

TLSA

88ms

SOA

0ms

MTA-STS

121ms

DNSSEC

89ms

SRV

272ms

Total

1145ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 00:12:20	1145ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-08-07 15:18:15	1954ms	2 NS 1 A 3 MX	🔓 Insecure	View
2026-06-17 13:04:35	4720ms	2 NS 1 A 3 MX	🔓 Insecure	View