ikastelnet.dk

📜 Historical scan 2026-10-05 13:49:36  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ikastelnet.dk is a .dk domain served by 2 nameservers (nicolas.ns.cloudflare.com, poppy.ns.cloudflare.com). It was registered on 17 August 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.145 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a 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   78ms
NameserverIP addressesPTRASN / ISP
nicolas.ns.cloudflare.com 108.162.195.84
162.159.44.84
172.64.35.84
2606:4700:58::a29f:2c54
2803:f800:50::6ca2:c354
2a06:98c1:50::ac40:2354		 nicolas.ns.cloudflare.com
nicolas.ns.cloudflare.com
nicolas.ns.cloudflare.com
nicolas.ns.cloudflare.com
nicolas.ns.cloudflare.com
nicolas.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
poppy.ns.cloudflare.com 108.162.194.33
162.159.38.33
172.64.34.33
2606:4700:50::a29f:2621
2803:f800:50::6ca2:c221
2a06:98c1:50::ac40:2221		 poppy.ns.cloudflare.com
poppy.ns.cloudflare.com
poppy.ns.cloudflare.com
poppy.ns.cloudflare.com
poppy.ns.cloudflare.com
poppy.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   112ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.65.145 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.164.25 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   385ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.65.145
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records   379ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:a419 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::6815:4191 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   377ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.65.145,172.67.164.25 ech=AEX+DQBBLQAgACCNmMdLCzKmU79Wo0uC8E4kObJWHY7AMhLGRj/+W2GoFAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:a419,2606:4700:3036::6815:4191

🔌 SRV Records#

1 records   504ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

2 records   673ms
TXT Record
google-site-verification=R6zjlSKJB8F7D2xksZR-9st5KibtUtkXXkKHMqgI8-Q
v=spf1 include:spf.protection.outlook.com a:mailscan10.tn-hosting.dk a:mailscan11.tn-hosting.dk include:spf.permido.com a:volta.pil.dk include:spfrerouting.xink.io ip4:91.231.147.122 ip4:40.68.36.243 -all

✉️ SPF#

PolicyRecord (ikastelnet.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.com a:mailscan10.tn-hosting.dk a:mailscan11.tn-hosting.dk include:spf.permido.com a:volta.pil.dk include:spfrerouting.xink.io ip4:91.231.147.122 ip4:40.68.36.243 -all

📨 DMARC#

PolicyRecord (_dmarc.ikastelnet.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:65689081e40ce@dmarc.centerasecurity.com;

📬 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 2026-10-12 23:42:20
www104.21.65.145 172.67.164.25 2606:4700:3032::ac43:a419 2606:4700:3036::6815:4191 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.ikastelnet.dk DPJRgOwCtqqI2DeG9pGa6C_PXOs62B8YeiiKP5tfBU0
TXT _acme-challenge.ikastelnet.dk dQa5DS2cHNKWRk_65OBjBNX3clizxnVJ1VJ476aZpzc

🔗 TLSA / DANE#

3 records   439ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 4B949F05A63FED95FC94B3A83DD70167…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC#

616ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

91ms
FieldValue
Serial2416682075
Primary NS (MNAME)nicolas.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 14:06:55
FieldValue
RegistrarCURANET A/S
Registered2017-08-17
Expires2027-08-31 (313d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
78ms
A
112ms
MX
385ms
AAAA
379ms
TXT
673ms
CAA
116ms
HTTPS
377ms
TLSA
439ms
SOA
91ms
MTA-STS
507ms
DNSSEC
616ms
SRV
504ms
Total
2341ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-06 13:58:55 615ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-05 13:49:36 shown 2341ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-02 13:24:26 1336ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 11:42:27 3100ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-13 22:07:44 660ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 00:26:59 754ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-11 15:45:41 2918ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-09 04:36:02 9023ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-05 23:13:49 680ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-05 20:33:04 1331ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-20 20:18:13 521ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 14:26:40 503ms 2 NS 1 A 1 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone