ringback.dk

Records from scan: 2026-10-12 04:41:31 · 1363ms total · last checked 2026-10-19 18:03 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ringback.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 213ms

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 86ms

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 105ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.251.127.26 142.251.127.27 2a00:1450:4001:c21::1a 2a00:1450:4001:c21::1b	lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net lcfrai-in-f27.1e100.net	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 323ms

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#

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#

282ms

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

🏷️ SOA#

81ms

Field	Value
Serial	2026101101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

213ms

86ms

105ms

AAAA

166ms

TXT

323ms

CAA

116ms

HTTPS

117ms

TLSA

282ms

SOA

81ms

MTA-STS

179ms

DNSSEC

282ms

SRV

228ms

Total

1363ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 04:41:31 shown	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	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