tidligalgebra.dk

📜 Historical scan 2026-06-24 06:14:54  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tidligalgebra.dk is a .dk domain served by 2 nameservers (ns3.nordicway.dk, ns4.nordicway.dk). It was registered on 14 February 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 167.235.1.82 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mail.tidligalgebra.dk. The zone is DNSSEC-signed but currently fails validation, 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   314ms
NameserverIP addressesPTRASN / ISP
ns3.nordicway.dk 2a01:4f8:c2c:d3c0::1
78.47.45.64		 ns3.nordicway.dk
ns3.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
ns4.nordicway.dk 2a01:4f8:c010:24a2::1
78.47.56.84		 ns4.nordicway.dk
ns4.nordicway.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

🌍 A Records#

1 records   272ms
IPTTLPTRASNISP / OrgCIDRCountryCity
167.235.1.82 3600s cp09.nordicway.dk AS24940 Hetzner Online GmbH 167.235.0.0/16 🇩🇪 Germany Falkenstein

📧 MX Records#

1 records   205ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mail.tidligalgebra.dk 167.235.1.82 cp09.nordicway.dk AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   818ms
TXT Record
v=spf1 +a +mx +ip4:167.235.1.82 include:relay.mailchannels.net ~all

✉️ SPF#

PolicyRecord (tidligalgebra.dk)
~all (soft fail) v=spf1 +a +mx +ip4:167.235.1.82 include:relay.mailchannels.net ~all

📨 DMARC#

PolicyRecord (_dmarc.tidligalgebra.dk)
p=none (monitor only) v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400

📬 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 2026-10-18 05:28:14
www CNAMEtidligalgebra.dk (all on tidligalgebra.dk)
www vs bare domainSame network
tidligalgebra.dk: 167.235.1.82 (AS24940)
www.tidligalgebra.dk: 167.235.1.82 (AS24940)
WildcardNo
Denial of existenceNSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
default — RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 3/10 · policy: ~all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.tidligalgebra.dk HXsX8f4lBFb9fHTUy_28m20ZPbica4nrwP50fGiAy-U

🔗 TLSA / DANE#

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

🔐 DNSSEC#

465ms
CheckResult
Validation Status⚠️ Bogus
AD Flag (resolver validates)✗ Not set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsbroken trust chain resolving 'tidligalgebra.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

313ms
FieldValue
Serial2026061701
Primary NS (MNAME)ns3.nordicway.dk
Responsible (RNAME)server@nordicway.dk
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s

📋 Registration#

WHOIS fetched 2026-10-12 12:41:45
FieldValue
Registrarnordicway ApS
Registered2025-02-14
Expires2027-02-13 (115d)

🔗 Same registrant#

43 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).

DomainRegistrar
123dansk.dkPunktum dk A/S (direct)
9eren.dkPunktum dk A/S (direct)
abcskole.dkPunktum dk A/S (direct)
aktivmat.dkPunktum dk A/S (direct)
aktivundervisning.dkPunktum dk A/S (direct)
appallies.dkGIGAHOST ApS
appsiundervisningen.dkPunktum dk A/S (direct)
begynderlæsning.dkPunktum dk A/S (direct)
dendigitalefolkeskole.dkPunktum dk A/S (direct)
dendigitaleskole.dkPunktum dk A/S (direct)
denrummeligeskole.dkGIGAHOST ApS
descriptio.dkSimply.com A/S
digibar.dkPunktum dk A/S (direct)
e-laering.dkGIGAHOST ApS
educreate.dkPunktum dk A/S (direct)
eimv.dknordicway ApS
geogebrakursus.dknordicway ApS
geogebraopgaver.dkPunktum dk A/S (direct)
ggbopgaver.dkPunktum dk A/S (direct)
hjaelpemidlerimatematik.dknordicway ApS
hjaelpemidlertilmatematik.dknordicway ApS
hjælpemidlerimatematik.dknordicway ApS
hjælpemidlertilmatematik.dknordicway ApS
i-undervisning.dkPunktum dk A/S (direct)
iaundervisning.dkPunktum dk A/S (direct)
it-lærernetværket.dkPunktum dk A/S (direct)
japelt.dkPunktum dk A/S (direct)
laeratkode.dkPunktum dk A/S (direct)
lærernetværket.dkPunktum dk A/S (direct)
matematikmedhjaelpemidler.dknordicway ApS
materialesamlingen.dkGIGAHOST ApS
minecraftiskolen.dkPunktum dk A/S (direct)
playfulllearning.dkGIGAHOST ApS
programmeringiskolen.dkPunktum dk A/S (direct)
shortlink.dkPunktum dk A/S (direct)
snurl.dkGIGAHOST ApS
sproghylden.dkPunktum dk A/S (direct)
sproglærernesdag.dkPunktum dk A/S (direct)
supercas.dkPunktum dk A/S (direct)
takkehilsen.dknordicway ApS
tgch.dkPunktum dk A/S (direct)
viskabermening.dknordicway ApS
web2res.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
314ms
A
272ms
MX
205ms
AAAA
317ms
TXT
818ms
CAA
197ms
HTTPS
306ms
TLSA
195ms
SOA
313ms
MTA-STS
257ms
DNSSEC
465ms
SRV
418ms
Total
2660ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-18 05:28:14 582ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-30 10:07:35 602ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-16 22:00:48 659ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-18 08:59:04 9676ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-28 02:10:14 781ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-24 06:14:54 shown 2660ms 2 NS 1 A 1 MX ⚠️ Bogus
2026-06-21 19:40:45 1032ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-18 06:23:19 739ms 2 NS 1 A 1 MX 🔒 Secure
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