algoritma.dk

📜 Historical scan 2026-09-29 20:53:30  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

algoritma.dk is a .dk domain served by 2 nameservers (amber.ns.cloudflare.com, odin.ns.cloudflare.com). It was registered on 2 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.43 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, 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   62ms
NameserverIP addressesPTRASN / ISP
amber.ns.cloudflare.com 108.162.192.64
172.64.32.64
173.245.58.64
2606:4700:50::adf5:3a40
2803:f800:50::6ca2:c040
2a06:98c1:50::ac40:2040		 amber.ns.cloudflare.com
amber.ns.cloudflare.com
amber.ns.cloudflare.com
amber.ns.cloudflare.com
amber.ns.cloudflare.com
amber.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
odin.ns.cloudflare.com 108.162.195.208
162.159.44.208
172.64.35.208
2606:4700:58::a29f:2cd0
2803:f800:50::6ca2:c3d0
2a06:98c1:50::ac40:23d0		 odin.ns.cloudflare.com
odin.ns.cloudflare.com
odin.ns.cloudflare.com
odin.ns.cloudflare.com
odin.ns.cloudflare.com
odin.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   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.45.43 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.209.107 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

5 records   49ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s aspmx.l.google.com 209.85.233.27
2a00:1450:4010:c1c::1b		 lr-in-f27.1e100.net
la-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 3600s alt1.aspmx.l.google.com 192.178.158.26
2404:6800:4013:813::1a		 lcdels-in-f26.1e100.net
lcdels-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 3600s alt2.aspmx.l.google.com 173.194.41.27
173.194.41.27
2404:6800:4001:c01::1b		 mad01s14-in-f27.1e100.net
yukulwh-in-f27.1e100.net
yukulwh-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
10 3600s alt3.aspmx.l.google.com 172.253.158.26
2404:6800:4003:c26::1a		 so-in-f26.1e100.net
so-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
10 3600s alt4.aspmx.l.google.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

🔷 AAAA Records (IPv6)#

2 records   50ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::ac43:d16b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::6815:2d2b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   52ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.45.43,172.67.209.107 ech=AEX+DQBByAAgACDkPIGbdvtH23IKJWkgQJjHKIVJ0qWWHM1aJxtba/6nFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:d16b,2606:4700:3035::6815:2d2b

📝 TXT Records#

3 records   207ms
TXT Record
google-site-verification=MnVFdnhNLKM0UwTDm60KAsE-ZuCpsCaOkwzHdYpO4e8
google-site-verification=SUdPMNYKd3GGzICyqHch-WkDFNUA_sdpqDCiOLHT7Sw
v=spf1 include:_spf.google.com ~all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_dmarc.algoritma.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:martin@algoritma.dk; adkim=r; aspf=r

📬 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 2026-10-11 04:00:49
www104.21.45.43 172.67.209.107 2606:4700:3033::ac43:d16b 2606:4700:3035::6815:2d2b (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#

50ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2415738607
Primary NS (MNAME)amber.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-11 04:36:19
FieldValue
RegistrarDANDOMAIN A/S
Registered2026-05-02
Expires2027-05-01 (196d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
62ms
A
38ms
MX
49ms
AAAA
50ms
TXT
207ms
CAA
42ms
HTTPS
52ms
TLSA
141ms
SOA
0ms
MTA-STS
62ms
DNSSEC
50ms
SRV
84ms
Total
728ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 04:00:49 736ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-29 20:53:30 shown 728ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-26 03:07:59 2630ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-25 06:06:47 1139ms 2 NS 2 A 5 MX 🔒 Secure
2026-09-04 11:03:46 717ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-30 03:54:06 1985ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-12 16:41:32 1564ms 2 NS 2 A 5 MX 🔒 Secure
2026-08-09 13:58:15 10502ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-17 09:06:35 3304ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-06 22:07:43 1581ms 2 NS 2 A 5 MX 🔒 Secure
2026-07-03 11:51:30 6927ms 2 NS 2 A 5 MX 🔒 Secure
2026-06-23 09:46:35 2854ms 2 NS 2 A 5 MX 🔒 Secure
2026-06-16 13:23:31 753ms 2 NS 2 A 5 MX 🔒 Secure
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