edugym.dk DNS records

🖥️ Nameservers2 records 108ms

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 21ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.11.249.139	3600s	krios.blueboard.cz	AS15685	CASABLANCA INT a.s.	217.11.248.0/23	🇨🇿 Czechia	Prague

📧 MX Records1 records 21ms

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.

🔷 AAAA Records (IPv6)1 records 45ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2001:1528:240::15	3600s	krios.blueboard.cz	AS15685	CASABLANCA INT a.s.	2001:1528::/32	🇨🇿 Czechia	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 126ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.edugym.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)

🔐 DNSSEC263ms

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

Key type	Algorithm	Public key
KSK	ECDSA P-256/SHA-256	Reba/4q9hjpOQfvBynwz+x34QJZO0UgKR8fUBSK+…
ZSK	ECDSA P-256/SHA-256	qQtOp6yDHb1cNwVk1AKWMrbvJLq50n/xzV8VYxKj…

🏷️ SOA25ms

Field	Value
Serial	2023091106
Primary NS (MNAME)	shinzon.blueboard.cz
Responsible (RNAME)	hostmaster@blueboard.cz
Refresh	10800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	7200s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

108ms

A

21ms

MX

21ms

AAAA

45ms

TXT

126ms

CAA

68ms

HTTPS

87ms

TLSA

298ms

SOA

25ms

MTA-STS

22ms

DNSSEC

263ms

SRV

0ms

Total

6285ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 12:43:03	6285ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 13:25:52	1710ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 00:29:39	1826ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-25 13:58:56	3322ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-24 13:33:56	3477ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-17 16:53:34	1475ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-15 23:42:32	10074ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-08 18:18:50	1358ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-28 02:41:31	10283ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-21 16:41:23	10512ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-20 07:19:47	2722ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-19 00:03:44	10203ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-15 17:07:46	4230ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-11 03:44:11	1356ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-03 10:46:44	2849ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-26 04:27:23	1481ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 05:55:22	779ms	2 NS 1 A 1 MX	🔓 Insecure	View