ottosen-it.dk

📜 Historical scan 2026-10-12 15:20:46  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ottosen-it.dk is a .dk domain served by 2 nameservers (algin.ns.cloudflare.com, bristol.ns.cloudflare.com). It was registered on 11 August 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.28.88 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.google.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   123ms
NameserverIP addressesPTRASN / ISP
algin.ns.cloudflare.com 108.162.193.61
172.64.33.61
173.245.59.61
2606:4700:58::adf5:3b3d
2803:f800:50::6ca2:c13d
2a06:98c1:50::ac40:213d		 algin.ns.cloudflare.com
algin.ns.cloudflare.com
algin.ns.cloudflare.com
algin.ns.cloudflare.com
algin.ns.cloudflare.com
algin.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
bristol.ns.cloudflare.com 108.162.194.47
162.159.38.47
172.64.34.47
2606:4700:50::a29f:262f
2803:f800:50::6ca2:c22f
2a06:98c1:50::ac40:222f		 bristol.ns.cloudflare.com
bristol.ns.cloudflare.com
bristol.ns.cloudflare.com
bristol.ns.cloudflare.com
bristol.ns.cloudflare.com
bristol.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   125ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.28.88 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.170.113 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   130ms
PriorityTTLMail ServerIP addressesPTRASN
1 300s smtp.google.com 142.250.147.26
142.250.147.27
142.251.9.26
142.251.9.27
2a00:1450:4025:c01::1a
2a00:1450:4025:c01::1b
2a00:1450:4025:c03::1a
2a00:1450:4025:c03::1b		 rd-in-f26.1e100.net
rd-in-f27.1e100.net
rc-in-f26.1e100.net
rc-in-f27.1e100.net
rd-in-f26.1e100.net
rd-in-f27.1e100.net
rc-in-f26.1e100.net
rc-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records   106ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::ac43:aa71 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3032::6815:1c58 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   141ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.28.88,172.67.170.113 ech=AEX+DQBBUAAgACAdcojAaBDjRtp7CRZqmoBTjSeAHDrASFsnhI+y/iAuXAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:aa71,2606:4700:3032::6815:1c58

📝 TXT Records#

2 records   264ms
TXT Record
google-site-verification=yzRmDNtrhGkM6yMwVXubkYYCxywZxQvGehcZNxzXJc4
v=spf1 include:_spf.google.com ~all

✉️ SPF#

PolicyRecord (ottosen-it.dk)
~all (soft fail) v=spf1 include:_spf.google.com ~all

📨 DMARC#

PolicyRecord (_dmarc.ottosen-it.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:8ddab23fe16b4d2092ba7de8bbdcc148@dmarc-reports.cloudflare.net

📬 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 2026-10-20 21:19:29
www104.21.28.88 172.67.170.113 2606:4700:3030::ac43:aa71 2606:4700:3032::6815:1c58 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
google — 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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

196ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

65ms
FieldValue
Serial2417020153
Primary NS (MNAME)algin.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-18 20:19:24
FieldValue
RegistrarSimply.com A/S
Registered2021-08-11
Expires2027-08-31 (310d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
123ms
A
125ms
MX
130ms
AAAA
106ms
TXT
264ms
CAA
124ms
HTTPS
141ms
TLSA
688ms
SOA
65ms
MTA-STS
134ms
DNSSEC
196ms
SRV
145ms
Total
3889ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-20 21:19:29 562ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-18 19:57:36 1526ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-15 18:08:59 2739ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-12 15:20:46 shown 3889ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-11 14:23:23 2080ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-10 13:37:50 2159ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-20 21:24:58 811ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-05 10:26:34 1230ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 22:00:21 696ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-20 00:19:39 8537ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-18 23:33:05 7674ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-12 05:34:46 9472ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-06 19:56:54 2239ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-10 21:06:39 1414ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-21 21:26:55 704ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-20 18:50:44 628ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-20 03:37:29 1553ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 00:56:25 916ms 2 NS 2 A 1 MX 🔒 Secure
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