rus3f.dk

📜 Historical scan 2026-07-17 20:20:57  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rus3f.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, uma.ns.cloudflare.com). It was registered on 4 November 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.43.78 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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   60ms
NameserverIP addressesPTRASN / ISP
jay.ns.cloudflare.com 108.162.193.123
172.64.33.123
173.245.59.123
2606:4700:58::adf5:3b7b
2803:f800:50::6ca2:c17b
2a06:98c1:50::ac40:217b		 jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com
jay.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
uma.ns.cloudflare.com 108.162.192.146
172.64.32.146
173.245.58.146
2606:4700:50::adf5:3a92
2803:f800:50::6ca2:c092
2a06:98c1:50::ac40:2092		 uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com
uma.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   60ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.43.78 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.222.236 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   65ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:2b4e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::ac43:deec 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   73ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.43.78,172.67.222.236 ech=AEX+DQBBFAAgACBYufLMJc6455W+wuXZUe8zialO6+ucnE9cwOMf51WIdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:2b4e,2606:4700:3035::ac43:deec

📝 TXT Records#

1 records   212ms
TXT Record
v=spf1 -all

✉️ SPF#

PolicyRecord (rus3f.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.rus3f.dk)
p=reject v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-16 10:42:18
www104.21.43.78 172.67.222.236 2606:4700:3033::6815:2b4e 2606:4700:3035::ac43:deec (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

200ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2409675680
Primary NS (MNAME)jay.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-23 14:26:22
FieldValue
RegistrarSimply.com A/S
Registered2015-11-04
Expires2027-11-30 (402d)

🔗 Same registrant#

49 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
3-f.dkSimply.com A/S
3f-a.dkSimply.com A/S
3f-design.dkSimply.com A/S
3f.dkSimply.com A/S
3fa.dkSimply.com A/S
3fi.dkSimply.com A/S
3findustri.dkSimply.com A/S
3finternational.dkSimply.com A/S
3fitst.dkSimply.com A/S
3fkongres.dkSimply.com A/S
3frus.dkSimply.com A/S
3ftransport.dkCURANET A/S
3ftst.dkSimply.com A/S
3fudv.dkSimply.com A/S
3fudvtst.dkSimply.com A/S
70300300.dkSimply.com A/S
blivijob.dkSimply.com A/S
dagbladet3f.dkSimply.com A/S
danskemodel.dkSimply.com A/S
faellesforbundet.dkSimply.com A/S
fagbaldet3f.dkSimply.com A/S
fagbladet.dkSimply.com A/S
fagbladet3f.dkSimply.com A/S
fagforeningstjek.dkSimply.com A/S
fagligtfaellesforbund.dkSimply.com A/S
fairpensionsalder.dkSimply.com A/S
fff.dkSimply.com A/S
fællesskab.dkSimply.com A/S
kad.dkSimply.com A/S
landsklubber.dkSimply.com A/S
langsoehus.dkSimply.com A/S
langsøhus.dkSimply.com A/S
lærlinge.dkSimply.com A/S
nejtilsocialdumping.dkSimply.com A/S
ok-rent.dkSimply.com A/S
overenskomster.dkSimply.com A/S
r-u-s.dkSimply.com A/S
sammenomok20.dkSimply.com A/S
skaevt.dkSimply.com A/S
skraldemand.dkSimply.com A/S
skævt.dkSimply.com A/S
stopsocialdumping.dkSimply.com A/S
tib.dkSimply.com A/S
tref.dkSimply.com A/S
trefu.dkSimply.com A/S
uddannelsestjek.dkSimply.com A/S
ungi3f.dkSimply.com A/S
vaerdigreform.dkSimply.com A/S
værdigreform.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
60ms
A
60ms
MX
61ms
AAAA
65ms
TXT
212ms
CAA
57ms
HTTPS
73ms
TLSA
8043ms
SOA
0ms
MTA-STS
96ms
DNSSEC
200ms
SRV
89ms
Total
8910ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-27 10:39:09 487ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-24 02:33:53 654ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-19 08:11:49 1265ms 2 NS 2 A 0 MX 🔓 Insecure
2026-07-26 04:46:01 1033ms 2 NS 2 A 0 MX 🔓 Insecure
2026-07-17 20:20:57 shown 8910ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-28 04:24:51 814ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-20 18:01:58 1023ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-20 16:53:59 938ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-17 15:34:34 800ms 2 NS 2 A 0 MX 🔓 Insecure
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