bigsaver.dk is a .dk domain served by 2 nameservers (emma.ns.cloudflare.com, houston.ns.cloudflare.com). It was registered on 27 September 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.84.205 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.84.205 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.196.155 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.196.155 |
| 🔶 Autoconfig | maildiscover.simply.com → 94.231.108.222 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:54cd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:c49b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.84.205,172.67.196.155 ech=AEX+DQBBGgAgACCE0sPG/KgbzFE/rdTbXkZ1tQ/w+CnjeMIkEX02um7jRwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:54cd,2606:4700:3037::ac43:c49b |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 10 | 10 | 443 | maildiscover.simply.com |
| TXT Record |
|---|
| google-site-verification=3LzIOH9EPQcSD9b6ayfSfTwPMOXOUzEgtN4Ny7UzMm8 |
| google-site-verification=5p3wucJ2qGf7nne3D9moT01TXeDxcWs9NeFAqqxTRf4 |
| google-site-verification=bgdzdTpd7kC7tCD_uWxMdSjzVSi3_VLzJDI43S37x-w |
| google-site-verification=Paq21SPS1cSFUgC63Zz_S-fnmRgnj86avbWoLK7QK98 |
| ubivox-site-verification=ssxRW5g08SCrv72JEYirOlf59 |
| v=spf1 include:_spf.google.com include:servers.mcsv.net include:emsd1.com include:mail.zendesk.com include:spf.ubivox.com include:uxmail.io include:spf.simply.com ~all |
| Policy | Record (bigsaver.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.google.com include:servers.mcsv.net include:emsd1.com include:mail.zendesk.com include:spf.ubivox.com include:uxmail.io include:spf.simply.com ~all |
| Policy | Record (_dmarc.bigsaver.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:982e6d11efe2428f80f036881aa9406b@dmarc-reports.cloudflare.net,mailto:fut@bigsaver.dk; ruf=mailto:fut@bigsaver.dk; rf=afrf; pct=100 |
| www | 104.21.84.205 172.67.196.155 2606:4700:3033::6815:54cd 2606:4700:3037::ac43:c49b (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network bigsaver.dk: 104.21.84.205 172.67.196.155 2606:4700:3033::6815:54cd 2606:4700:3037::ac43:c49b (AS13335) www.bigsaver.dk: 104.21.84.205 172.67.196.155 2606:4700:3033::6815:54cd 2606:4700:3037::ac43:c49b (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 2048 bit |
| k1 | dkim.mcsv.net | 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: 7/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2411481092 |
| Primary NS (MNAME) | emma.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2016-09-27 |
| Expires | 2027-09-30 (347d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 10:24:44 | 827ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 09:21:30 | 9547ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 18:50:49 | 797ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 04:32:01 | 10069ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 19:40:44 | 9531ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-29 07:36:13 | 1428ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 19:00:44 | 874ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-07 01:51:42 shown | 2128ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-02 18:42:17 | 1512ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-16 04:25:43 | 822ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 17:56:18 | 1755ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-21 14:53:32 | 2329ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 14:29:09 | 574ms | 2 NS 2 A 1 MX | 🔓 Insecure |