rybners-gymnasium.dk

📜 Historical scan 2026-06-22 19:42:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rybners-gymnasium.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 17 December 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 37.128.213.47 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mxnonexistent.rybners-gymnasium.dk. The zone is of unknown DNSSEC status, publishes a 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#

2 records 48ms

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 Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
37.128.213.47	3600s	—	AS39642	Sinal A/S	37.128.208.0/20	🇩🇰 Denmark	Esbjerg

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
100	3600s	mxnonexistent.rybners-gymnasium.dk	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 169ms

TXT Record
inst=Rybners
uvmid=280110
v=spf1 -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.rybners-gymnasium.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-27 14:38:20

www CNAME	umbracowebs.rybners-gymnasium.dk (all on rybners-gymnasium.dk) → 37.128.213.47 (AS39642)
www vs bare domain	Same network rybners-gymnasium.dk: 37.128.213.47 (AS39642) www.rybners-gymnasium.dk: 37.128.213.47 (AS39642)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

99ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'rybners-gymnasium.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA#

51ms

Field	Value
Serial	1415190461
Primary NS (MNAME)	ns1.esis.dk
Responsible (RNAME)	hostmaster@esis.dk
Refresh	900s
Retry	600s
Expire	86400s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 08:08:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-12-17
Expires	2028-12-31 (795d)

🔗 Same registrant#

30 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).

Domain	Registrar
aspitesbjerg.dk	Punktum dk A/S (direct)
bice.dk	Simply.com A/S
detnaturvidenskabeligegymnasium.dk	Punktum dk A/S (direct)
esbjerg-sciencecenter.dk	Simply.com A/S
esbjergsciencecenter.dk	Simply.com A/S
eucvest.dk	Punktum dk A/S (direct)
fagenes-fest.dk	Simply.com A/S
hermitage.dk	Punktum dk A/S (direct)
kompetencenettet.dk	Punktum dk A/S (direct)
kursuscentervest.dk	Punktum dk A/S (direct)
mineserver.dk	Punktum dk A/S (direct)
natur-viden-skab.dk	Punktum dk A/S (direct)
rescuecenter.dk	Punktum dk A/S (direct)
rescuecenterdenmark.dk	Punktum dk A/S (direct)
rescuecenteresbjerg.dk	Punktum dk A/S (direct)
rybners.dk	Punktum dk A/S (direct)
rybners365.dk	Punktum dk A/S (direct)
rybnersamukursuscenter.dk	Simply.com A/S
rybnershandelsskole.dk	Simply.com A/S
rybnershf.dk	Simply.com A/S
rybnershhx.dk	Simply.com A/S
rybnershtx.dk	Simply.com A/S
rybnerskursuscenter.dk	Simply.com A/S
rybnersstx.dk	Simply.com A/S
rybnerstekniskeskole.dk	Simply.com A/S
sciencecenteresbjerg.dk	Simply.com A/S
teknisk-gymnasium.dk	Punktum dk A/S (direct)
tekniskgymnasiumesbjerg.dk	Simply.com A/S
tekniskskoleesbjerg.dk	Punktum dk A/S (direct)
vælgsort.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

48ms

51ms

33ms

AAAA

37ms

TXT

169ms

CAA

46ms

HTTPS

48ms

TLSA

68ms

SOA

51ms

MTA-STS

52ms

DNSSEC

99ms

SRV

146ms

Total

506ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-27 14:38:20	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-23 04:44:47	595ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-19 15:51:24	3546ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-16 13:30:56	1194ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 06:14:24	530ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-10 05:32:23	852ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 16:43:35	701ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 16:37:26	592ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:28:50	666ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 14:01:52	1072ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 13:28:40	840ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 21:59:25	682ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 20:27:20	904ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 03:11:47	3473ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 02:05:59	3361ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 01:30:26	3459ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 08:14:54	2101ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 12:17:39	531ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-21 23:21:36	11058ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 22:48:12	771ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-16 14:57:52	729ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 09:49:21	1301ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-10 21:03:07	1311ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-08 23:33:30	16476ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-30 01:56:51	683ms	2 NS 1 A 1 MX	🔒 Secure