syslab.dk

📜 Historical scan 2026-08-07 15:18:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

syslab.dk is a .dk domain served by 2 nameservers (ns1.risoe.dk, ns2.risoe.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.226.56.172 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc and 1 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 84ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.risoe.dk	130.226.56.67	—	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education
ns2.risoe.dk	130.226.56.68	—	AS1835 FSKNET-DK Forskningsnettet - Danish network for Research and Education

🌍 A Records#

1 records 61ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.226.56.172	21600s	—	AS1835	IDDQD-AS	130.226.0.0/16	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

3 records 72ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	21600s	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	21600s	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	21600s	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 Records#

2 records 535ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 07:07:15

www	130.226.56.172 (AS1835) (address records, no CNAME)
www vs bare domain	Same network syslab.dk: 130.226.56.172 (AS1835) www.syslab.dk: 130.226.56.172 (AS1835)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 7/10 · policy: -all

error include:spf.peoplexs.com has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

164ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

84ms

61ms

72ms

AAAA

84ms

TXT

535ms

CAA

72ms

HTTPS

100ms

TLSA

151ms

SOA

0ms

MTA-STS

123ms

DNSSEC

164ms

SRV

254ms

Total

1954ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-24 06:07:14	2001ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-27 00:12:20	1145ms	2 NS 1 A 3 MX	🔓 Insecure
2026-08-07 15:18:15 shown	1954ms	2 NS 1 A 3 MX	🔓 Insecure
2026-06-17 13:04:35	4720ms	2 NS 1 A 3 MX	🔓 Insecure