alcon.dk

📜 Historical scan 2026-09-30 12:53:19  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

alcon.dk is a .dk domain served by 4 nameservers (ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and 1 more). It was registered on 16 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.18.0.244 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, 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#

4 records   63ms
NameserverIP addressesPTRASN / ISP
ha1.markmonitor.zone 192.174.68.5
2001:67c:1bc::5		 ha1.markmonitor.zone
ha1.markmonitor.zone		 AS1921 ipcom GmbH
AS1921 ipcom GmbH
ha2.markmonitor.zone 162.219.54.170
2620:10a:80eb::6b		 ha2.markmonitor.zone
ha2.markmonitor.zone		 AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
AS55195 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements In
ha3.markmonitor.zone 176.97.158.5
2001:67c:10b8::5		 ha3.markmonitor.zone
ha3.markmonitor.zone		 AS207021 ipcom GmbH
AS1921 ipcom GmbH
ha4.markmonitor.zone 162.219.55.170
2620:10a:80ec::6b		 ha4.markmonitor.zone
ha4.markmonitor.zone		 AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I
AS394354 CIRA Canadian Internet Registration Authority Autorit Canadienne pour les enregistrements I

🌍 A Records#

2 records   54ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.18.0.244 300s — AS13335 Cloudflare, Inc. 104.16.0.0/14 — —
104.18.1.244 300s — AS13335 Cloudflare, Inc. 104.16.0.0/14 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   346ms
TXT Record
8e36e5a410774de2ba6266aa7aeba911
v=spf1 -all

✉️ SPF#

PolicyRecord (alcon.dk)
-all (hard fail) v=spf1 -all

📨 DMARC#

PolicyRecord (_dmarc.alcon.dk)
p=reject v=DMARC1; p=reject; rua=mailto:f762a5e1e929449@rep.dmarcanalyzer.com; ruf=mailto:f762a5e1e929449@for.dmarcanalyzer.com; fo=1;

📬 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 2026-10-07 16:24:11
www CNAMEwww.alcon.dk.cdn.cloudflare.net (all on cloudflare.net)
www vs bare domainSame network
WildcardNo

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

🏷️ SOA#

43ms
FieldValue
Serial2026081801
Primary NS (MNAME)ha1.markmonitor.zone
Responsible (RNAME)hostmaster@markmonitor.com
Refresh3600s
Retry600s
Expire604800s
Minimum (neg-cache TTL)172800s

📋 Registration#

WHOIS fetched 2026-10-07 16:45:56
FieldValue
RegistrarMarkMonitor Inc.
Registered1998-02-16
Expires2027-03-31 (164d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
63ms
A
54ms
MX
42ms
AAAA
60ms
TXT
346ms
CAA
57ms
HTTPS
42ms
TLSA
122ms
SOA
43ms
MTA-STS
88ms
DNSSEC
99ms
SRV
104ms
Total
784ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-07 16:24:11 2268ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-30 12:53:19 shown 784ms 4 NS 2 A 0 MX 🔓 Insecure
2026-09-25 07:13:08 2357ms 4 NS 2 A 0 MX 🔓 Insecure
2026-08-20 03:02:49 9956ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-30 02:04:52 766ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-25 06:19:07 999ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-23 19:06:39 1145ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 12:24:54 2635ms 4 NS 2 A 0 MX 🔓 Insecure
2026-06-16 12:39:15 461ms 4 NS 2 A 0 MX 🔓 Insecure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone