yahoogroups.dk is a .dk domain served by 2 nameservers (1ns.yahoo.com, 2ns.yahoo.com). It was registered on 9 August 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.248.158.7 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by .. The zone is not DNSSEC-signed, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 13.248.158.7 | 7200s | a7de0457831fd11f7.awsglobalaccelerator.com | AS16509 | Amazon.com, Inc. | 13.248.0.0/14 | 🇺🇸 United States | — |
| 76.223.84.192 | 7200s | a7de0457831fd11f7.awsglobalaccelerator.com | AS16509 | Amazon.com, Inc. | 76.223.0.0/17 | 🇺🇸 United States | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 7200s | . Null MX — domain accepts no email (RFC 7505) | |||
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | rc.yahoo.com → 13.248.158.7 |
| 🔶 Autoconfig | rc.yahoo.com → 76.223.84.192 |
| Policy | Record (_dmarc.yahoogroups.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=100; rua=mailto:dmarc-yahoo-rua@yahoo-inc.com; |
| Flags | Tag | Value |
|---|---|---|
| 0 | iodef | mailto:security@yahooinc.com |
| 0 | issue | ; |
| www CNAME | rc.yahoo.com (all on yahoo.com) |
| www vs bare domain | Same network yahoogroups.dk: 13.248.158.7 76.223.84.192 (AS16509) www.yahoogroups.dk: 13.248.158.7 76.223.84.192 (AS16509) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.yahoogroups.dk | rc.yahoo.com |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2024032501 |
| Primary NS (MNAME) | hidden-master.yahoo.com |
| Responsible (RNAME) | hostmaster@yahoo-inc.com |
| Refresh | 28800s |
| Retry | 3600s |
| Expire | 1814400s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | MarkMonitor Inc. |
| Registered | 2001-08-09 |
| Expires | 2027-09-30 (348d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 02:53:32 shown | 1958ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 22:40:29 | 5322ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-02 20:23:58 | 4347ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 04:56:24 | 2979ms | 2 NS 2 A 0 MX | 🔓 Insecure |