yellowhost.dk

📜 Historical scan 2026-06-18 07:14:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

yellowhost.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.33.142.179 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.yellowhost.dk. The zone is DNSSEC-signed and validates, 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#

4 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 100ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.33.142.179	—	77.33.142.179.dhcp.fibianet.dk	AS44869	FIBIA P/S	77.33.0.0/16	🇩🇰 Denmark	Grenå

📧 MX Records#

1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	—	mail.yellowhost.dk	77.33.142.179	77.33.142.179.dhcp.fibianet.dk	AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	77.33.142.179
🔶 Autoconfig	77.33.142.179

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 210ms

TXT Record
google-site-verification=_mj3JCFECWvaax0RXNBGj_jGcoUpoJfw6-QTrbHCREY
v=spf1 a mx a:yellowhost.dk ip4:77.33.142.179 -all

✉️ SPF#

Policy	Record (yellowhost.dk)
-all (hard fail)	v=spf1 a mx a:yellowhost.dk ip4:77.33.142.179 -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 2026-10-12 18:43:28

www	77.33.142.179 (AS44869) (address records, no CNAME)
www vs bare domain	Same network yellowhost.dk: 77.33.142.179 (AS44869) www.yellowhost.dk: 77.33.142.179 (AS44869)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

78ms

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

🏷️ SOA#

59ms

Field	Value
Serial	2026060800
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

50ms

100ms

62ms

AAAA

42ms

TXT

210ms

CAA

64ms

HTTPS

40ms

TLSA

100ms

SOA

59ms

MTA-STS

102ms

DNSSEC

78ms

SRV

111ms

Total

644ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 18:43:28	757ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-09 13:31:25	670ms	4 NS 1 A 1 MX	🔒 Secure
2026-10-02 00:26:10	765ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-25 14:29:42	686ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-22 19:27:47	1161ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 19:43:14	1115ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-18 07:14:00 shown	644ms	4 NS 1 A 1 MX	🔒 Secure