algol.dk

📜 Historical scan 2026-10-01 01:20:10 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

algol.dk is a .dk domain served by 4 nameservers (ns1.iptwins.net, ns2.iptwins.net, ns3.iptwins.com and 1 more). It was registered on 16 July 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 51.91.60.233 is hosted by OVH SAS (AS16276) in France. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 133ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.iptwins.net	188.165.162.43	ns1.iptwins.net	AS16276 OVH SAS
ns2.iptwins.net	193.70.18.204	ns2.iptwins.net	AS16276 OVH SAS
ns3.iptwins.com	144.217.70.141 2607:5300:203:28d::	ns3.iptwins.com ns3.iptwins.com	AS16276 OVH SAS AS16276 OVH SAS
ns4.iptwins.com	161.202.174.147 2401:c900:1101:496::3	ns4.iptwins.com ns4.iptwins.com	AS36351 IBM Cloud AS36351 IBM Cloud

🌍 A Records#

1 records 68ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.91.60.233	86400s	eole2.iptwins.com	AS16276	OVH SAS	51.91.0.0/16	🇫🇷 France	—

📧 MX Records#

5 records 160ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	86400s	aspmx.l.google.com	2a00:1450:4010:c1e::1b 64.233.164.26	lb-in-f27.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	86400s	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	86400s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	86400s	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	86400s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 11593ms

TXT Record
google-site-verification=-kmrlxSLMoO_ZELg3ICxAOv8WzeFRZoSr39DO2B9ERQ
v=spf1 ip4:195.236.104.2 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (algol.dk)
~all (soft fail)	v=spf1 ip4:195.236.104.2 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.algol.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@algol.fi

📬 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 22:04:46

www	51.91.60.233 (AS16276) (address records, no CNAME)
www vs bare domain	Same network algol.dk: 51.91.60.233 (AS16276) www.algol.dk: 51.91.60.233 (AS16276)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~1024 bit below 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#

260ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

123ms

Field	Value
Serial	2021030903
Primary NS (MNAME)	ns1.iptwins.net
Responsible (RNAME)	dns-log@iptwins.com
Refresh	86400s
Retry	7200s
Expire	2592000s
Minimum (neg-cache TTL)	345600s

📋 Registration#

WHOIS fetched 2026-10-10 08:55:40

Field	Value
Registrar	Key-Systems GmbH
Registered	2001-07-16
Expires	2027-09-30 (348d)

📋 WHOIS#

⏱️ Lookup Timing#

133ms

68ms

160ms

AAAA

56ms

TXT

11593ms

CAA

208ms

HTTPS

230ms

TLSA

4033ms

SOA

123ms

MTA-STS

655ms

DNSSEC

260ms

SRV

4053ms

Total

16387ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 22:04:46	14588ms	4 NS 1 A 5 MX	🔓 Insecure
2026-10-01 01:20:10 shown	16387ms	4 NS 1 A 5 MX	🔓 Insecure
2026-07-02 06:02:37	2835ms	4 NS 1 A 5 MX	🔓 Insecure
2026-06-21 22:09:28	964ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 18:35:54	2118ms	4 NS 1 A 5 MX	🔓 Insecure
2026-06-19 16:28:27	2540ms	4 NS 1 A 5 MX	🔓 Insecure
2026-06-16 13:23:19	3143ms	4 NS 1 A 5 MX	🔓 Insecure