| 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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=Kwi1BgyK8lfoM_cclF0pUV3pqJD8sIuph8L6ui5hsL8 |
| MS=ms31697820 |
| v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (helstrup-daek.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (_dmarc.helstrup-daek.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026082801 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-28 20:30:39 | 1833ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-27 18:50:11 | 1338ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-17 21:27:12 | 2930ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-10 12:06:50 | 6031ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-08 12:13:41 | 5929ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-08-02 07:14:12 | 5153ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-19 15:27:57 | 17992ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-18 13:39:45 | 8907ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-11 05:51:40 | 5279ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-05 00:09:08 | 6651ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-07-03 20:38:15 | 1502ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-29 16:27:44 | 1041ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-28 11:42:47 | 1348ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-25 13:48:58 | 4139ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 11:14:42 | 2190ms | 2 NS 1 A 1 MX | 🔒 Secure | View |
| 2026-06-17 11:11:00 | 1294ms | 2 NS 1 A 1 MX | 🔒 Secure | View |