ringback.dk

📜 Historical scan 2026-07-14 18:26:41 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ringback.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 July 2026 (WHOIS) and first appeared in the .dk zone on 7 July 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by smtp.google.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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	3600s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records#

1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.251.1.26 142.251.1.27 173.194.221.26 173.194.221.27 2a00:1450:4010:c06::1b 2a00:1450:4010:c06::1b 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a 2a00:1450:4010:c1e::1a 2a00:1450:4010:c1e::1b 64.233.163.26	lb-in-f26.1e100.net lb-in-f27.1e100.net lm-in-f26.1e100.net lm-in-f27.1e100.net lj-in-f27.1e100.net lj-in-x1b.1e100.net lm-in-x1a.1e100.net lm-in-f26.1e100.net lb-in-f26.1e100.net lb-in-f27.1e100.net lj-in-f26.1e100.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 145ms

TXT Record
google-site-verification=i-7HhcM6Z2cYh8_K1zzccPdMU3vOTuisdlMq_mHmc4o
v=spf1 include:_spf.google.com ~all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.ringback.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#

latest probe, not this scan · checked 2026-10-12 04:41:31

www	76.76.21.21 (AS16509) (address records, no CNAME)
www vs bare domain	Same network ringback.dk: 76.76.21.21 (AS16509) www.ringback.dk: 76.76.21.21 (AS16509)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
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#

51ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026071201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-20 06:56:58

Field	Value
Registrar	ONE.COM A/S
Registered	2026-07-06
Expires	2027-07-05 (257d)

🔗 Same registrant#

3 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
adforge.dk	ONE.COM A/S
facelessfoundry.dk	ONE.COM A/S
platformhuset.dk	ONE.COM A/S

📋 WHOIS#

⏱️ Lookup Timing#

31ms

29ms

31ms

AAAA

31ms

TXT

145ms

CAA

29ms

HTTPS

31ms

TLSA

94ms

SOA

0ms

MTA-STS

39ms

DNSSEC

51ms

SRV

34ms

Total

1215ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 04:41:31	1363ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-17 16:31:29	2769ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 21:48:26	713ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 12:32:49	507ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 14:22:44	802ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 21:53:52	1154ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 18:26:41 shown	1215ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-12 03:27:22	1116ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-07 08:50:19	738ms	2 NS 1 A 1 MX	🔒 Secure