blåstudent.dk DNS records

🖥️ Nameservers2 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.esis.dk	185.19.134.2	ns1.esis.dk	AS199374 Syddansk Erhvervsskole Odense-Vejle
ns2.esis.dk	185.19.134.3	ns2.esis.dk	AS199374 Syddansk Erhvervsskole Odense-Vejle

🌍 A Records1 records 84ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.19.134.87	3600s	businessepx.dk campussoenderborg.dk campussonderborg.dk detgroennegymnasium.dk epxsoenderborg.dk epxsonderborg.dk lup.bcsyd.dk teambuilldingsyd.dk xn--campussnderborg-cub.dk xn--detgrnnegymnasium-40b.dk xn--epxsnderborg-yjb.dk	AS199374	Syddansk Erhvervsskole Odense-Vejle	185.19.132.0/22	🇩🇰 Denmark	Odense

📧 MX Records1 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
100	3600s	mxnonexistent.xn--blstudent-62a.dk	185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87 185.19.134.87	xn--detgrnnegymnasium-40b.dk detgroennegymnasium.dk epxsoenderborg.dk epxsonderborg.dk teambuilldingsyd.dk xn--epxsnderborg-yjb.dk xn--campussnderborg-cub.dk lup.bcsyd.dk campussoenderborg.dk campussonderborg.dk businessepx.dk	AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle AS199374 Syddansk Erhvervsskole Odense-Vejle

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	185.19.134.87
🔶 Autoconfig	185.19.134.87

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 339ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.blåstudent.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r

📬 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)

🔐 DNSSEC277ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	ncache nxdomain overridden by dig AD

🏷️ SOA0ms

Field	Value
Serial	2020051792
Primary NS (MNAME)	ns1.esis.dk
Responsible (RNAME)	hostmaster
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

65ms

A

84ms

MX

82ms

AAAA

59ms

TXT

339ms

CAA

89ms

HTTPS

85ms

TLSA

90ms

SOA

0ms

MTA-STS

153ms

DNSSEC

277ms

SRV

148ms

Total

1082ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 18:57:24	1082ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-26 11:58:26	580ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 11:27:55	776ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 04:01:37	1989ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-12 04:47:34	1302ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-10 21:10:14	2666ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 09:41:29	727ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 03:53:55	693ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-26 12:06:42	944ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-23 10:27:24	1212ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-21 00:15:46	4980ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 04:23:25	2599ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-11 13:54:26	804ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 17:02:48	645ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-03 20:52:46	2443ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 11:33:10	2461ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 22:45:48	521ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 19:16:11	969ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 19:12:46	377ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 18:43:27	700ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 06:36:03	624ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 15:06:03	2000ms	2 NS 1 A 1 MX	🔒 Secure	View