workbook.com - dns.ninja
workbook.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1785207632 | ||||||
rank #229846 in the tld
WOT: SAFE (67/100)
📈 Tranco rank: #956,515
Subdomains
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●NSns39.domaincontrol.com2015-04-16 → 2026-07-28 · 2 obs
● 2026-07-28 03:23:54
●NSns40.domaincontrol.com2015-04-16 → 2026-07-28 · 2 obs
● 2026-07-28 03:23:54
○MXmx1.edoxs1.iphmx.com2015-04-16 → 2015-12-21 · 4 obs
● 2015-12-21 02:07:54
○ 2016-03-24 05:02:40
○ 2026-07-28 03:23:54
●MXworkbook-com.mail.protection.outlook.com2016-03-24 → 2026-07-28 · 3 obs
● 2016-03-24 05:02:40
● 2026-07-28 03:23:54
●A52.26.207.1712017-05-08 → 2026-07-28 · 3 obs
● 2017-05-08 00:38:44
● 2026-07-28 03:23:54
○A69.43.202.1102015-04-16 → 2016-03-24 · 4 obs
● 2016-03-24 05:02:40
○ 2017-05-08 00:38:44
○ 2026-07-28 03:23:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| workbook.com | ns39.domaincontrol.com, ns40.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.77.20
NS records: ns39.domaincontrol.com, ns40.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for workbook.com (unsigned zone)
⏱️ Timing
Total: 821ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.26.207.171 |
| NS | 2 | ns39.domaincontrol.com, ns40.domaincontrol.com |
| MX | 1 | workbook-com.mail.protection.outlook.com |
| TXT | 5 | v=spf1 ip4:24.43.80.86 include:spfa.cpma, google-site-verification=ADJmdoTLlaLxbOG... |
| SOA | 1 | ns39.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns39.domaincontrol.com, ns39.domaincontrol.com, ns40.domaincontrol.com...)
Analysis
Hierarchy
workbook.com has four subdomains: cdn.workbook.com, blog.workbook.com, now.workbook.com and www.workbook.com.
IP Addresses
workbook.com resolves to just one IP address, 52.26.207.171.
Name Servers
workbook.com is served by two delegated name servers, ns39.domaincontrol.com and ns40.domaincontrol.com.
workbook.com shares its NS records with other domains, for example takomachildren.com, mechanicdekho.com, ntsonline.org and two others.
The DNS delegation for workbook.com at least partly coincides with that of other domains, economiedumaroc.com being one example.
Each of the two host names carries two IP addresses: ns39.domaincontrol.com points to 97.74.109.20 and 2603:5:21d1::14, and ns40.domaincontrol.com points to 173.201.77.20 and 2603:5:22d1::14.
Mail Servers
The sole mail server for workbook.com is workbook-com.mail.protection.outlook.com.
With 8 IP addresses total, workbook-com.mail.protection.outlook.com resolves to 52.101.10.18, 52.101.11.2, 52.101.11.19 and 5 others.