fessor.dk

📜 Historical scan 2026-07-02 13:20:46  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fessor.dk is a .dk domain served by 2 nameservers (cortney.ns.cloudflare.com, eric.ns.cloudflare.com). It was registered on 28 December 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.3.32 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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   54ms
NameserverIP addressesPTRASN / ISP
cortney.ns.cloudflare.com 108.162.192.87
172.64.32.87
173.245.58.87
2606:4700:50::adf5:3a57
2803:f800:50::6ca2:c057
2a06:98c1:50::ac40:2057		 cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com
cortney.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
eric.ns.cloudflare.com 108.162.193.112
172.64.33.112
173.245.59.112
2606:4700:58::adf5:3b70
2803:f800:50::6ca2:c170
2a06:98c1:50::ac40:2170		 eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com
eric.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   80ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.3.32 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.130.39 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

7 records   86ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s aspmx.l.google.com 142.251.1.26
2a00:1450:4010:c01::1b
2a00:1450:4010:c01::1b		 lb-in-f26.1e100.net
lh-in-f27.1e100.net
lh-in-x1b.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
20 300s alt1.aspmx.l.google.com 192.178.158.27
2404:6800:4013:813::1a		 lcdels-in-f27.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 300s alt2.aspmx.l.google.com 172.253.158.26
2404:6800:4003:c26::1b		 so-in-f26.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx2.googlemail.com 192.178.158.27
2404:6800:4013:813::1b		 lcdels-in-f27.1e100.net
lcdels-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx3.googlemail.com 172.253.158.27
2404:6800:4003:c26::1b		 so-in-f27.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx4.googlemail.com 108.177.125.26
2404:6800:4008:c01::1a		 tp-in-f26.1e100.net
tp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx5.googlemail.com 192.178.230.26
2404:6800:400b:c01b::1a		 yunrtab-in-f26.1e100.net
yunrtab-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover172.67.130.39
🔶 Autoconfig104.21.3.32

🔷 AAAA Records (IPv6)#

2 records   85ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:320 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:8227 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   62ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.3.32,172.67.130.39 ech=AEX+DQBBUwAgACAc+8mkEk8wBqOwWAPqRlfB+cWX1VBYN5cmNifO0DJkaQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:320,2606:4700:3037::ac43:8227

📝 TXT Records#

1 records   198ms
TXT Record
google-site-verification=H6-4I1knCvrYLQHXDH0GuQTMoGJQOrSyXXUIjmC2REc

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-13 16:31:03
www104.21.3.32 172.67.130.39 2606:4700:3033::6815:320 2606:4700:3037::ac43:8227 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

139ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

56ms
FieldValue
Serial2407153904
Primary NS (MNAME)cortney.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-11 20:31:47
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1998-12-28
Expires2027-12-31 (439d)

🔗 Same registrant#

161 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
0klassefaget.dkEurodns S.A
1094.dkPunktum dk A/S (direct)
5emner.dkPunktum dk A/S (direct)
5nyeemner.dkPunktum dk A/S (direct)
ad-dev.dkPunktum dk A/S (direct)
ad-prod.dkPunktum dk A/S (direct)
ad-staging.dkPunktum dk A/S (direct)
ad-test.dkPunktum dk A/S (direct)
afgangsprøver.dkEurodns S.A
aigo.dkPunktum dk A/S (direct)
alinea-web.dkPunktum dk A/S (direct)
alinea.dkPunktum dk A/S (direct)
alineadigital.dkPunktum dk A/S (direct)
athene.dkPunktum dk A/S (direct)
bingoweb.dkPunktum dk A/S (direct)
biologifocus.dkPunktum dk A/S (direct)
blivklog.dkPunktum dk A/S (direct)
bog.dkPunktum dk A/S (direct)
bookguide.dkPunktum dk A/S (direct)
bornsliv.dkPunktum dk A/S (direct)
camptysk.dkPunktum dk A/S (direct)
carlsen.dkPunktum dk A/S (direct)
classteam.dkPunktum dk A/S (direct)
clio.dkEurodns S.A
cliocloud.dkEurodns S.A
clioevalueringsopgaver.dkEurodns S.A
clionoc.dkEurodns S.A
cliopulten.dkEurodns S.A
clioskole.dkEurodns S.A
clioskyen.dkEurodns S.A
cliotræning.dkEurodns S.A
dansk-skolen.dkEurodns S.A
danskfessor.dkPunktum dk A/S (direct)
dansklandskabet.dkPunktum dk A/S (direct)
danskskolen.dkEurodns S.A
dansktime.dkEurodns S.A
danskunivers.dkPunktum dk A/S (direct)
denførstelæsning.dkPunktum dk A/S (direct)
digitalfaget.dkEurodns S.A
dmiklassematematik.dkPunktum dk A/S (direct)
dmimatematik.dkPunktum dk A/S (direct)
dmmatematik.dkPunktum dk A/S (direct)
easyreaders.dkPunktum dk A/S (direct)
edspace.dkPunktum dk A/S (direct)
edulab.dkPunktum dk A/S (direct)
elevlab.dkPunktum dk A/S (direct)
engelskfaget.dkEurodns S.A
engelskfessor.dkPunktum dk A/S (direct)
engelskunivers.dkPunktum dk A/S (direct)
erdutalblind.dkPunktum dk A/S (direct)
eskolebog.dkPunktum dk A/S (direct)
faerdighedsproeven.dkPunktum dk A/S (direct)
familiefessor.dkPunktum dk A/S (direct)
fesor.dkPunktum dk A/S (direct)
fessordysten.dkPunktum dk A/S (direct)
fessorsaktiviteter.dkPunktum dk A/S (direct)
fessorsfamilie.dkPunktum dk A/S (direct)
fessorskurser.dkPunktum dk A/S (direct)
fessorstalkuffert.dkPunktum dk A/S (direct)
filmabc.dkPunktum dk A/S (direct)
fleksbog.dkPunktum dk A/S (direct)
fleksbogen.dkPunktum dk A/S (direct)
flexbog.dkPunktum dk A/S (direct)
forfatter.dkPunktum dk A/S (direct)
forlagetturbo.dkPunktum dk A/S (direct)
formatnet.dkPunktum dk A/S (direct)
franskfessor.dkPunktum dk A/S (direct)
fysik-kemi-timen.dkEurodns S.A
fysik-kemifokus.dkPunktum dk A/S (direct)
fysiktalent.dkPunktum dk A/S (direct)
gekko-engelsk.dkPunktum dk A/S (direct)
gekko-fransk.dkPunktum dk A/S (direct)
gekko-tysk.dkPunktum dk A/S (direct)
gekkotysk.dkPunktum dk A/S (direct)
gymnasie-klar.dkPunktum dk A/S (direct)
gymnasie-portalen.dkPunktum dk A/S (direct)
haandvaerkdesignfaget.dkEurodns S.A
historieunivers.dkPunktum dk A/S (direct)
håndværkdesignfaget.dkEurodns S.A
i-skolebogen.dkPunktum dk A/S (direct)
innovationfaget.dkEurodns S.A
iskolebog.dkPunktum dk A/S (direct)
isprog.dkPunktum dk A/S (direct)
istav.dkPunktum dk A/S (direct)
iwbunivers.dkPunktum dk A/S (direct)
kalenderfessor.dkPunktum dk A/S (direct)
klimafessor.dkPunktum dk A/S (direct)
klogpaanaturfag.dkEurodns S.A
komma.dkPunktum dk A/S (direct)
kristendomskundskab.dkEurodns S.A
lindhardt-og-ringhof.dkPunktum dk A/S (direct)
lindhardtringhof.dkPunktum dk A/S (direct)
lindhardtringhofbusiness.dkPunktum dk A/S (direct)
lindhart-ringhof.dkPunktum dk A/S (direct)
lindhartringhof.dkPunktum dk A/S (direct)
logrweb.dkPunktum dk A/S (direct)
lrdigital.dkONE.COM A/S
lrlive.dkPunktum dk A/S (direct)
lru.dkPunktum dk A/S (direct)
lruddannelse.dkPunktum dk A/S (direct)

Showing 100 of 161.

📋 WHOIS#

⏱️ Lookup Timing#

NS
54ms
A
80ms
MX
86ms
AAAA
85ms
TXT
198ms
CAA
80ms
HTTPS
62ms
TLSA
162ms
SOA
56ms
MTA-STS
79ms
DNSSEC
139ms
SRV
104ms
Total
1419ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 16:31:03 852ms 2 NS 2 A 7 MX 🔓 Insecure
2026-10-07 22:31:19 627ms 2 NS 2 A 7 MX 🔓 Insecure
2026-09-24 03:34:28 791ms 2 NS 2 A 7 MX 🔓 Insecure
2026-09-20 12:58:17 1826ms 2 NS 2 A 7 MX 🔓 Insecure
2026-08-28 02:19:27 1148ms 2 NS 2 A 7 MX 🔓 Insecure
2026-08-26 13:50:46 1311ms 2 NS 2 A 7 MX 🔓 Insecure
2026-08-15 11:37:06 7717ms 2 NS 2 A 7 MX 🔓 Insecure
2026-07-18 17:07:49 2505ms 2 NS 2 A 7 MX ❓ Unknown
2026-07-02 13:20:46 shown 1419ms 2 NS 2 A 7 MX 🔓 Insecure
2026-06-25 16:17:11 1313ms 2 NS 2 A 7 MX 🔓 Insecure
2026-06-24 10:08:02 1175ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-17 10:15:35 959ms 2 NS 2 A 7 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone