crussis.dk DNS records

🖥️ Nameservers2 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
ns2.blueboard.cz	195.201.57.122 2a01:4f8:13b:8d4::2	ns2.blueboard.cz —	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
shinzon.blueboard.cz	178.251.187.7 2a00:1ed0:45::b	shinzon.blueboard.cz shinzon.blueboard.cz	AS43541 VSHosting s.r.o. AS43541 VSHosting s.r.o.

🌍 A Records1 records 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.11.249.139	38400s	krios.blueboard.cz	AS15685	CASABLANCA INT a.s.	217.11.248.0/23	🇨🇿 Czechia	Prague

📧 MX Records1 records 112ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.blueboard.cz	2001:1528:240::ca 81.0.209.130	mx.blueboard.cz mx.blueboard.cz	AS15685 CASABLANCA INT a.s. AS15685 CASABLANCA INT a.s.

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	217.11.249.139
🔶 Autoconfig	217.11.249.139

🔷 AAAA Records (IPv6)1 records 144ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1528:240::15	38400s	krios.blueboard.cz	AS15685	CASABLANCA INT a.s.	2001:1528:0:0:0:0:0:0/32	🇨🇿 Czechia	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 549ms

TXT Record
v=spf1 a mx include:spf.blueboard.cz -all

✉️ SPF

Policy	Record (crussis.dk)
-all (hard fail)	v=spf1 a mx include:spf.blueboard.cz -all

📨 DMARC

Policy	Record (_dmarc.crussis.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC374ms

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

🏷️ SOA0ms

Field	Value
Serial	2023121580
Primary NS (MNAME)	shinzon.blueboard.cz
Responsible (RNAME)	hostmaster@blueboard.cz
Refresh	10800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	7200s

📋 RegistrationWHOIS fetched 2026-08-30 22:50:18

Field	Value
Registrar	Gransy s.r.o.
Registered	2024-03-14
Expires	2027-03-13 (192d)

📋 WHOIS

⏱️ Lookup Timing

NS

98ms

A

94ms

MX

112ms

AAAA

144ms

TXT

549ms

CAA

113ms

HTTPS

79ms

TLSA

1396ms

SOA

0ms

MTA-STS

194ms

DNSSEC

374ms

SRV

209ms

Total

7980ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 22:49:37	7980ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-29 17:08:33	3846ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 14:41:38	3330ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-26 14:01:42	3208ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-23 13:28:27	10390ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-22 12:44:06	6034ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-20 11:47:34	1972ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-18 11:18:59	10340ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-16 23:47:47	4848ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-14 17:03:56	10781ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-13 13:05:09	10156ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-12 08:40:17	5047ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-09 11:40:54	1490ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-05 22:25:00	1505ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-01 11:23:39	3097ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-30 00:56:45	16698ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-27 15:35:36	10845ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-26 14:47:09	8857ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-24 14:02:44	4328ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-22 10:33:40	912ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-21 05:36:02	10418ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-18 12:18:08	8403ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-16 06:49:45	2994ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-09 05:42:58	2019ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-06 20:45:16	17226ms	2 NS 1 A 1 MX	🔓 Insecure	View