attento.dk

Records from scan: 2026-10-13 06:16:11 · 784ms total · last checked 2026-10-17 10:37 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

attento.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 5 October 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.221.253.104 is hosted by Unit IT A/S (AS42876) in Denmark. Mail is handled by attento-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.221.253.104	600s	—	AS42876	Unit IT A/S	77.221.224.0/19	🇩🇰 Denmark	Tåstrup

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	attento-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::b 2a01:111:f403:ca09::a 2a01:111:f403:ca48::e 52.101.185.24 52.101.209.28 52.101.68.25 52.101.68.39	mail-db7pr03cu00601.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24
🔶 Autoconfig	77.221.253.104

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 136ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (attento.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.attento.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-13 06:16:11

www	77.221.253.104 (AS42876) (address records, no CNAME)
www vs bare domain	Same network attento.dk: 77.221.253.104 (AS42876) www.attento.dk: 77.221.253.104 (AS42876)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u2003615.wl116.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u2003615.wl116.sendgrid.net	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#

72ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

44ms

Field	Value
Serial	2026101200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 12:37:35

Field	Value
Registrar	Simply.com A/S
Registered	2023-10-05
Expires	2034-10-04 (2908d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

42ms

38ms

35ms

AAAA

43ms

TXT

136ms

CAA

49ms

HTTPS

37ms

TLSA

308ms

SOA

44ms

MTA-STS

49ms

DNSSEC

72ms

SRV

51ms

Total

784ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:16:11 shown	784ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 01:51:28	968ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 09:48:06	1823ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-28 09:06:41	869ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-27 18:20:34	745ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-25 14:06:34	2377ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:55:29	1160ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:48:10	680ms	3 NS 1 A 1 MX	🔒 Secure