notisum.dk is a .dk domain served by 3 nameservers (ns1-a.nadns1.fr, ns1-b.nadns1.com, ns1-c.nadns1.com). It was registered on 14 March 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 135.225.91.55 is hosted by Microsoft Corporation (AS8075) in Sweden. Mail is handled by notisum-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 135.225.91.55 | — | — | AS8075 | Microsoft Corporation | 135.224.0.0/12 | 🇸🇪 Sweden | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 135.225.91.55 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms72765883 |
| v=spf1 a ip4:77.66.77.39 ip4:35.242.233.128 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:134.128.64.0/19 ip4:134.128.96.0/19 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 include:_autoflattenspf0.notisum.dk -all |
| Policy | Record (notisum.dk) |
|---|---|
| -all (hard fail) | v=spf1 a ip4:77.66.77.39 ip4:35.242.233.128 include:spf.protection.outlook.com include:_spf.salesforce.com ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:134.128.64.0/19 ip4:134.128.96.0/19 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 include:_autoflattenspf0.notisum.dk -all |
| Policy | Record (_dmarc.notisum.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email,mailto:infopro.rua@emailsecurity.merox.io;sp=reject; fo=1; |
| www | 135.225.91.55 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| selector2 | selector2-notisum-dk._domainkey.karnovgroup.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: 5/10 · policy: -all
No problems found| 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 | 2026060317 |
| Primary NS (MNAME) | ns1-a.nadns1.fr |
| Responsible (RNAME) | technical@nameshield.net |
| Refresh | 28800s |
| Retry | 7200s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 7200s |
| Field | Value |
|---|---|
| Registrar | NAMESHIELD |
| Registered | 2016-03-14 |
| Expires | 2027-03-31 (161d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 05:55:42 | 10323ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 02:42:43 | 10151ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-27 12:05:40 | 1783ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 18:00:28 | 1864ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 02:25:11 | 3389ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 21:51:29 shown | 14650ms | 3 NS 1 A 1 MX | 🔓 Insecure |