tesarobio.dk

📜 Historical scan 2026-06-23 23:48:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tesarobio.dk is a .dk domain served by 3 nameservers (dns1.safenames.com, dns2.safenames.net, dns3.safenames.org). It was registered on 18 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.19.248.132 is hosted by Safenames Ltd. (AS60819) in United Kingdom. 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#

3 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.safenames.com	162.159.48.132 2400:cb00:2049:1::a29f:3084	dns1.safenames.com —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dns2.safenames.net	162.159.49.170 2400:cb00:2049:1::a29f:31aa	dns2.safenames.net —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dns3.safenames.org	172.64.48.23 2400:cb00:2049:1::ac40:3017	dns3.safenames.org —	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.19.248.132	900s	redirect.idp365.net	AS60819	Safenames Ltd.	217.19.240.0/20	🇬🇧 United Kingdom	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 400ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (tesarobio.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.tesarobio.dk)
p=reject	v=DMARC1; p=reject
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com; fo=1

📬 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 2026-10-17 07:25:26

www	217.19.248.132 (AS60819) (address records, no CNAME)
www vs bare domain	Same network tesarobio.dk: 217.19.248.132 (AS60819) www.tesarobio.dk: 217.19.248.132 (AS60819)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

134ms

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

🏷️ SOA#

183ms

Field	Value
Serial	2024061201
Primary NS (MNAME)	dns1.safenames.com
Responsible (RNAME)	hostmaster@safenames.net
Refresh	28800s
Retry	1800s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-16 10:19:20

Field	Value
Registrar	Safenames Ltd
Registered	2017-01-18
Expires	2027-01-31 (100d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
dostarlimab.dk	Safenames Ltd
garnestaar.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

69ms

98ms

67ms

AAAA

138ms

TXT

400ms

CAA

132ms

HTTPS

69ms

TLSA

65ms

SOA

183ms

MTA-STS

181ms

DNSSEC

134ms

SRV

241ms

Total

831ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-27 00:19:13	847ms	3 NS 1 A 0 MX	🔓 Insecure
2026-07-23 23:20:36	16917ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-23 23:48:20 shown	831ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-20 17:26:56	1078ms	3 NS 1 A 0 MX	🔓 Insecure
2026-06-17 22:53:26	5649ms	3 NS 1 A 0 MX	🔓 Insecure