big.dk is a .dk domain served by 2 nameservers (arch.ns.cloudflare.com, dawn.ns.cloudflare.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.150.1.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by big-dk.mail.protection.outlook.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 216.150.1.1 | 300s | — | AS16509 | Amazon.com, Inc. | 216.150.1.0/24 | 🇺🇸 United States | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.152.184 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| _bd803oc6q59l1wxfjppc3t27l3235c4 |
| _globalsign-domain-verification=4HDE8epUsSL1Eua3IypuQW4DLptiB6hyxthEt4WdF6 |
| 375919af-4c2b-481f-bb46-a6d6c6c3dc8e |
| adobe-idp-site-verification=56817f62-c418-4c5d-9dad-afe36f7672e6 |
| airalo-domain-verification=dHFNyzglLpPtYcX |
| apple-domain-verification=51HpwC26mTD79c9J |
| asv=bce8f38660b6e2a60fb7d9636f6c49a5 |
| autodesk-domain-verification=DXtK31VwmKupx9Dy02yo |
| bw=tAv2nQbTYs39YrPJJNkRx1kWHosSUrAZ98rhG1c0Ay4X |
| google-site-verification=5ZamKvM9WV-5xkC21Ums6xM9wMzt5CnIZHvqwl1DEf8 |
| google-site-verification=PX1x9s_2aj_WljPQza7RF1KogMPl3pFNbirP2PAnQcE |
| google-site-verification=rqnNiYSUf3ZnigR6cMNlHO_jEXehJazUNOYE6SdjET4 |
| LT4DtvlU/tEpEFT99Q2HcJZYM8qWMU3sX53rEiCKaS/wD4bJP4GHWthTBU36ElL4KgNeo+exYZnLOYxoU3FzBA== |
| miro-verification=da2deb365952c7c1ae25617b93bd35dbcc84843a |
| MS=ms56749993 |
| v=spf1 mx a include:spf.mandrillapp.com include:spf.protection.outlook.com include:_spf.concurcompleat.com include:_spf.essenslms.com include:_spf.emply.com -all |
| xn--MS=ms65969977 |
| xn--MS=ms67034159 |
| Policy | Record (big.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a include:spf.mandrillapp.com include:spf.protection.outlook.com include:_spf.concurcompleat.com include:_spf.essenslms.com include:_spf.emply.com -all |
| Policy | Record (_dmarc.big.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:umviz6cy@ag.eu.dmarcian.com; ruf=mailto:umviz6cy@fr.eu.dmarcian.com |
| www CNAME | cf32b3f056135485.vercel-dns-016.com (all on vercel-dns-016.com) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-big-dk._domainkey.bigarchitects.onmicrosoft.com | RSA · ~1024 bit below 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.
DNS lookups: 8/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.big.dk | 2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com |
| TXT | 2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com | J5YEemfWbsHj395G4tk8Fo5ZZIMrUrJjiWW15NzrAbQ |
| TXT | 2d15eaae-d9d4-4cc3-b96a-8cff8761738f.stackpath-tls.com | Uy2RiBWF8JSCvo2jxsOg8T_q5oTYRsHsz4DjS_YUsjk |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2407212790 |
| Primary NS (MNAME) | arch.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1997-01-31 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 19:03:43 | 2617ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 17:44:54 | 3347ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 20:17:58 | 2062ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 19:02:26 | 1382ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 05:41:36 | 717ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 18:09:05 | 1695ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 17:52:19 | 1752ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-20 20:28:11 | 2468ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 18:08:17 | 2345ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-12 15:53:41 | 1203ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-08 19:50:46 | 2025ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 18:18:51 | 764ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 16:57:01 | 1264ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-11 14:28:04 | 4066ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 12:59:00 | 9335ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 12:53:26 | 5892ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-06 06:46:42 | 1534ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-22 21:32:19 | 10780ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 20:36:02 | 3673ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-03 19:58:16 | 8969ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 17:10:25 | 997ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 17:46:12 | 1928ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 14:02:16 | 1079ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 16:16:23 | 898ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 16:04:53 shown | 12861ms | 2 NS 1 A 1 MX | 🔒 Secure |