work-4u.com - robtex.com
work-4u.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=1774615147 | ||||||
MX for
work-4u.com |
Same first word
DNS History
16 records (5 active, 11 former)
○NSdeimos.ezyra.com2015-08-22 → 2016-08-12 · 4 obs
● 2016-08-12 01:51:18
○ 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
●NSns1.bdm.microsoftonline.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:54:34
○NSns1.ezyra.com2015-08-22 → 2017-04-07 · 5 obs
○ 2015-12-15 02:50:42
○ 2016-08-12 01:51:18
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
●NSns2.bdm.microsoftonline.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:54:34
○NSns2.ezyra.com2015-08-22 → 2017-04-07 · 3 obs
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
●NSns3.bdm.microsoftonline.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:54:34
○NSns3.ezyra.com2015-08-22 → 2017-04-07 · 3 obs
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
●NSns4.bdm.microsoftonline.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:54:34
○NSns4.ezyra.com2015-08-22 → 2017-04-07 · 3 obs
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
○MXthebes.ezyra.com2015-08-22 → 2017-04-07 · 3 obs
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
○MXwork-4u.com2026-03-27 → 2026-03-27 · 1 obs
●MXwork4u-com01b.mail.protection.outlook.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:54:34
○A45.77.208.482026-03-27 → 2026-03-27 · 1 obs
○A69.67.162.362015-08-22 → 2017-04-07 · 3 obs
● 2017-04-07 04:07:32
○ 2026-03-27 12:54:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| work-4u.com | ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com | 8 records |
✅ Authoritative Response
Server:204.14.183.208
NS records: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com, ns4.bdm.microsoftonline.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for work-4u.com (unsigned zone)
⏱️ Timing
Total: 111ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com... |
| MX | 1 | work4u-com01b.mail.protection.outlook.co |
| TXT | 2 | mscid=oxx0Mqvfgwha4sZlg+Kr4T8CDBIcEp0Ve/, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.bdm.microsoftonline.com azuredns-hos |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns1.bdm.microsoftonline.com, ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com...)
Analysis
Mail Server Role
work-4u.com serves as a mail server for work-4u.com.
Name Servers
work-4u.com's delegation is handled by four name servers: ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and ns4.bdm.microsoftonline.com.
work-4u.com partially shares name servers with other domains; examples include aoyamadogandstyle.com, mh-attorneys.com, meyrawinkel.nl, finneganbutler.com and livewellfcc.com.
Host names with two IPs:
ns1.bdm.microsoftonline.com points to 2603:1061:0:700::d0 and 13.107.236.208
ns2.bdm.microsoftonline.com points to 2620:1ec:8ec:700::d0 and 150.171.21.208
ns3.bdm.microsoftonline.com points to 2a01:111:4000:700::d0 and 204.14.183.208
ns4.bdm.microsoftonline.com points to 2620:1ec:bda:700::d0 and 208.84.5.208
Mail Servers
work-4u.com is handled by a single mail server, work4u-com01b.mail.protection.outlook.com.
Hostname work4u-com01b.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c942::1, 2a01:111:f403:c942::2, 2a01:111:f403:c942::3, 2a01:111:f403:c944::1, 52.101.190.0, 52.101.190.1, 52.101.190.2 and 52.101.192.0.