optilink.dk

📜 Historical scan 2026-08-24 12:43:05  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optilink.dk is a .dk domain served by 2 nameservers (phoenix.ns.cloudflare.com, rommy.ns.cloudflare.com). It was registered on 24 November 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.133 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   45ms
NameserverIP addressesPTRASN / ISP
phoenix.ns.cloudflare.com 108.162.194.201
162.159.38.201
172.64.34.201
2606:4700:50::a29f:26c9
2803:f800:50::6ca2:c2c9
2a06:98c1:50::ac40:22c9		 phoenix.ns.cloudflare.com
phoenix.ns.cloudflare.com
phoenix.ns.cloudflare.com
phoenix.ns.cloudflare.com
phoenix.ns.cloudflare.com
phoenix.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
rommy.ns.cloudflare.com 108.162.195.20
162.159.44.20
172.64.35.20
2606:4700:58::a29f:2c14
2803:f800:50::6ca2:c314
2a06:98c1:50::ac40:2314		 rommy.ns.cloudflare.com
rommy.ns.cloudflare.com
rommy.ns.cloudflare.com
rommy.ns.cloudflare.com
rommy.ns.cloudflare.com
rommy.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   47ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.41.133 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.165.3 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   63ms
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
🔷 Autodiscover172.67.165.3
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records   57ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:2985 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:a503 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   45ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.41.133,172.67.165.3 ech=AEX+DQBBtgAgACBenBMBvdPYl6eLQ/f1OnqHc8hiH+sm2r54ji36DSYBAgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2985,2606:4700:3033::ac43:a503

🔌 SRV Records#

2 records   97ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com
_sipfederationtls._tcp 1 5061 5061 sipfed.online.lync.com

📝 TXT Records#

1 records   224ms
TXT Record
v=spf1 include:spf.simply.com include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (optilink.dk)
-all (hard fail) v=spf1 include:spf.simply.com include:spf.protection.outlook.com -all

📨 DMARC#

PolicyRecord (_dmarc.optilink.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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 2026-10-14 19:45:13
www104.21.41.133 172.67.165.3 2606:4700:3031::6815:2985 2606:4700:3033::ac43:a503 (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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.optilink.dk D6W_cN4kRjxAKQluimcveviHwcSSd1vQkuOWtFjDrgg
TXT _acme-challenge.optilink.dk SGJGjM2JBLdKpYpUTWIi7i-UQZwvCmhJdm8A5YzWcXo

🔗 TLSA / DANE#

2 records   74ms
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 97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC#

9085ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2413026025
Primary NS (MNAME)phoenix.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 06:30:12
FieldValue
RegistrarSimply.com A/S
Registered2018-11-24
Expires2026-11-30 (42d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
45ms
A
47ms
MX
63ms
AAAA
57ms
TXT
224ms
CAA
27ms
HTTPS
45ms
TLSA
74ms
SOA
0ms
MTA-STS
85ms
DNSSEC
9085ms
SRV
97ms
Total
10052ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-05 05:53:15 768ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-04 05:39:07 542ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-04 02:47:49 715ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-02 02:37:41 777ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-01 02:35:01 665ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 15:49:47 789ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-19 05:13:24 1852ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-12 03:10:31 1726ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-05 02:56:37 1236ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-28 06:01:35 9661ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-25 12:55:14 1664ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 12:43:05 shown 10052ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-08 20:22:07 1950ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-02 12:55:53 10559ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-22 15:54:17 831ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-22 08:39:38 1172ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-22 01:38:26 595ms 4 NS 1 A 1 MX ⚠️ Bogus
2026-06-18 02:25:28 844ms 4 NS 1 A 1 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone