synref.dk

Records from scan: 2026-09-30 19:22:53 · 898ms total · last checked 2026-10-17 13:30 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

synref.dk is a .dk domain served by 2 nameservers (ns1.regsj.dk, ns2.regsj.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.16.1.238 is hosted by Microsoft Corporation (AS8075) in The Netherlands. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 57ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.regsj.dk	91.198.168.21	svrdc200v002.regsj.intern	AS43806 Region Sjaelland
ns2.regsj.dk	91.198.168.22	ns2.regsj.dk	AS43806 Region Sjaelland

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.16.1.238	28800s	—	AS8075	Microsoft Corporation	20.0.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 337ms

TXT Record
_10sj1fv26zmfly9nqek8rtwmn32t2kx
_ua96pld72gzut5gfv3pdt40numie908
v=spf1 include:sparkpostmail.com -all

✉️ SPF#

Policy	Record (synref.dk)
-all (hard fail)	v=spf1 include:sparkpostmail.com -all

📨 DMARC#

Policy	Record (_dmarc.synref.dk)
p=reject	v=DMARC1;p=reject;sp=reject;rua=mailto:gadio9eh@ag.eu.dmarcadvisor.com;ruf=mailto:gadio9eh@fr.eu.dmarcadvisor.com;fo=1

📬 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#

checked 2026-10-12 03:14:31

www	20.16.1.238 (AS8075) (address records, no CNAME)
www vs bare domain	Same network synref.dk: 20.16.1.238 (AS8075) www.synref.dk: 20.16.1.238 (AS8075)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

72ms

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

🏷️ SOA#

77ms

Field	Value
Serial	2383
Primary NS (MNAME)	svrdc202v002.regsj.intern
Responsible (RNAME)	hostmaster@regsj.dk
Refresh	900s
Retry	90s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

57ms

40ms

AAAA

42ms

TXT

337ms

CAA

52ms

HTTPS

54ms

TLSA

72ms

SOA

77ms

MTA-STS

95ms

DNSSEC

72ms

SRV

111ms

Total

898ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 19:22:53 shown	898ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-29 19:23:39	666ms	2 NS 1 A 0 MX	🔓 Insecure
2026-09-25 04:40:21	587ms	2 NS 1 A 0 MX	🔓 Insecure
2026-08-27 12:15:33	2449ms	2 NS 1 A 0 MX	🔓 Insecure
2026-06-18 03:02:46	2511ms	2 NS 1 A 0 MX	🔓 Insecure