booomerang.dk

📜 Historical scan 2026-10-09 11:44:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

booomerang.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 164.92.237.194 is hosted by DigitalOcean, LLC (AS14061) in Germany. Mail is handled by smtp.google.com. The zone is DNSSEC-signed and validates, has no 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 32ms

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 63ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
164.92.237.194	3600s	booomerang.dev	AS14061	DigitalOcean, LLC	164.92.128.0/17	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1a 2a00:1450:4010:c22::1b 64.233.164.26 64.233.164.27 64.233.165.26 74.125.205.26 74.125.205.27	li-in-f26.1e100.net li-in-x1a.1e100.net li-in-x1b.1e100.net li-in-f27.1e100.net lg-in-f26.1e100.net lg-in-x1a.1e100.net yulpptr-in-f27.1e100.net lf-in-f26.1e100.net lf-in-f27.1e100.net lg-in-f26.1e100.net le-in-f26.1e100.net le-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 AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	164.92.237.194
🔶 Autoconfig	164.92.237.194

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-12 15:31:10

www	164.92.237.194 (AS14061) (address records, no CNAME)
www vs bare domain	Same network booomerang.dk: 164.92.237.194 (AS14061) www.booomerang.dk: 164.92.237.194 (AS14061)
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.u33345896.wl147.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u33345896.wl147.sendgrid.net	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

139ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026100200
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 2026-10-10 12:32:20

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-02-02
Expires	2027-02-28 (125d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

63ms

34ms

AAAA

32ms

TXT

142ms

CAA

26ms

HTTPS

38ms

TLSA

131ms

SOA

42ms

MTA-STS

73ms

DNSSEC

139ms

SRV

75ms

Total

1068ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 15:31:09	1226ms	3 NS 1 A 3 MX	🔒 Secure
2026-10-10 12:16:10	1058ms	3 NS 1 A 3 MX	🔒 Secure
2026-10-09 11:44:29 shown	1068ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 10:36:03	571ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 14:58:15	905ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-29 14:48:43	1286ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-22 09:47:35	697ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 16:16:38	1694ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 16:16:06	2463ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 16:01:28	445ms	3 NS 1 A 1 MX	⚠️ Bogus
2026-06-16 16:00:51	717ms	3 NS 1 A 1 MX	🔒 Secure