synfuel.dk

Records from scan: 2026-10-10 03:53:30 · 1851ms total · last checked 2026-10-16 14:10 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

synfuel.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 May 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 192.38.84.61 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by mx1.spamfilter.cc, mx2.spamfilter.cc and 1 more. The zone is DNSSEC-signed and validates, 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 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
192.38.84.61	43200s	rodeo.windenergy.dtu.dk	AS1835	IDDQD-AS	192.38.0.0/17	🇩🇰 Denmark	Kongens Lyngby

📧 MX Records#

3 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	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	43200s	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	43200s	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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	synfuel.dk → 192.38.84.61
🔶 Autoconfig	synfuel.dk → 192.38.84.61

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 333ms

TXT Record
3QGFii0svYWIqd87YSBipqGHwqWsHl73t9bjFcvC5COEM2Ad5PIyfgpgu1xrRrfQtJEnXn6ENZK0k2+V32aQOw==
HARICA-PxwC6r1WKlpwMAyJ2zY
v=spf1 mx -all
xz1qtmcgbkszb3j266prc3g9gnk9tvzf
yL+apEmP3ObwBRZYsTk8dhNk0jgZD0+X8yvShKimhKbL+N8sABWajq0Q2k/jfRVJsdK8yJ5DDHm9FPZKVEMCrA==

✉️ SPF#

Policy	Record (synfuel.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC#

Policy	Record (_dmarc.synfuel.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-10 03:53:31

www CNAME	san1.sitecore.dtu.dk (all on dtu.dk) → 52.236.166.178 (AS8075)
www vs bare domain	Different networks synfuel.dk: 192.38.84.61 (AS1835) www.synfuel.dk: 52.236.166.178 (AS8075) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.synfuel.dk	synfuel.dk
TXT	synfuel.dk	xz1qtmcgbkszb3j266prc3g9gnk9tvzf

🔗 TLSA / DANE#

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

🔐 DNSSEC#

299ms

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

🏷️ SOA#

64ms

Field	Value
Serial	2026100901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-08 18:49:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-05-06
Expires	2027-05-31 (226d)

📋 WHOIS#

⏱️ Lookup Timing#

98ms

75ms

AAAA

97ms

TXT

333ms

CAA

71ms

HTTPS

96ms

TLSA

196ms

SOA

64ms

MTA-STS

128ms

DNSSEC

299ms

SRV

128ms

Total

1851ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 03:53:30 shown	1851ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-01 00:17:45	1058ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-13 20:20:55	1104ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-17 21:34:04	11475ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-22 05:00:10	1466ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-22 02:14:24	1181ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 17:48:21	3752ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-21 09:13:18	1119ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 05:19:57	1616ms	2 NS 1 A 3 MX	🔒 Secure