workbook.dk is a .dk domain served by 5 nameservers (ns0.dnsmadeeasy.com, ns1.dnsmadeeasy.com, ns2.dnsmadeeasy.com and 2 more). It was registered on 4 November 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.189.66.203 is hosted by Google LLC (AS396982) in United Kingdom. Mail is handled by mxa-001c5501.gslb.pphosted.com, mxb-001c5501.gslb.pphosted.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 |
|---|---|---|---|---|---|---|---|
| 35.189.66.203 | 1800s | 203.66.189.35.bc.googleusercontent.com | AS396982 | Google LLC | 35.184.0.0/13 | 🇬🇧 United Kingdom | City of London |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mxa-001c5501.gslb.pphosted.com | 148.163.156.150 | mx0a-001c5501.pphosted.com | AS26211 Proofpoint, Inc. |
| 10 | 300s | mxb-001c5501.gslb.pphosted.com | 148.163.158.147 | mx0b-001c5501.pphosted.com | AS22843 Proofpoint, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.8 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=V4_UaH4yIxZGiaWAdbP5XT3OByiCWPK0jpE8MROs0co |
| v=DMARC1; p=none; |
| v=spf1 include:spf.protection.outlook.com include:u938644.wl.sendgrid.net -all |
| WB=3f4zsVOVmkyAEOIsYBUWQQ |
| WB=aEaI+G4u80uAWuK7q9SeOw |
| WB=Cxd6YQkQU0qlVPhGnwup4A |
| WB=ekpV/vQjtki24c9q2o+O1Q |
| WB=KS304VAn6UOuXRrRSWArxA |
| WB=mjcMYnpXv0+SNSnkAD/60g |
| WB=NO6ePGdFG0q3wUUFYjKMUQ |
| WB=nZJvJPoUR0CG2Xa7ncD42Q |
| WB=QoiDS9pM9kK5usmaoZZJJQ |
| WB=UeBW150/cUCHwP1J/iCxkQ |
| WB=X3nU3e/Ry0u3Q+SZ2hjq4A |
| Policy | Record (workbook.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:u938644.wl.sendgrid.net -all |
| Policy | Record (_dmarc.workbook.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 35.189.66.203 (AS396982) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u938644.wl.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u938644.wl.sendgrid.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: 2/10 · 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 | 2008012027 |
| Primary NS (MNAME) | ns0.dnsmadeeasy.com |
| Responsible (RNAME) | dns@dnsmadeeasy.com |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 180s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2000-11-04 |
| Expires | 2029-12-31 (1170d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-27 08:01:00 | 2525ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-28 05:03:56 | 1605ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-27 22:19:49 shown | 1613ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 22:03:26 | 2102ms | 5 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 16:09:42 | 883ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 11:42:47 | 1679ms | 5 NS 1 A 2 MX | 🔓 Insecure |