biforbiz.com - robtex.com
biforbiz.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=1771291435 | ||||||
Subdomains
smtp.biforbiz.com |
Same first word
DNS History
8 records (4 active, 4 former)
●NSns19.domaincontrol.com2015-08-22 → 2026-03-23 · 2 obs
● 2026-03-23 08:01:04
●NSns20.domaincontrol.com2015-08-22 → 2026-03-23 · 2 obs
● 2026-03-23 08:01:04
●MXbiforbiz-com.mail.protection.outlook.com2026-02-20 → 2026-03-23 · 3 obs
● 2026-02-20 21:08:44
● 2026-03-23 08:01:04
○MXmail.biforbiz.com2015-08-22 → 2017-03-16 · 4 obs
● 2017-03-16 13:26:26
○ 2026-02-20 21:08:44
○ 2026-03-23 08:01:04
○MXmx1.gtechserv.com2015-08-22 → 2017-03-16 · 4 obs
● 2017-03-16 13:26:26
○ 2026-02-20 21:08:44
○ 2026-03-23 08:01:04
○MXmx2.gtechserv.com2015-08-22 → 2017-03-16 · 4 obs
● 2017-03-16 13:26:26
○ 2026-02-20 21:08:44
○ 2026-03-23 08:01:04
○A166.82.156.332015-08-22 → 2017-03-16 · 4 obs
● 2017-03-16 13:26:26
○ 2026-02-20 21:08:44
○ 2026-03-23 08:01:04
●A40.87.85.2542026-02-20 → 2026-03-23 · 3 obs
● 2026-02-20 21:08:44
● 2026-03-23 08:01:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| biforbiz.com | ns19.domaincontrol.com, ns20.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.109.10
NS records: ns19.domaincontrol.com, ns20.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for biforbiz.com (unsigned zone)
⏱️ Timing
Total: 146ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 40.87.85.254 |
| NS | 2 | ns19.domaincontrol.com, ns20.domaincontrol.com |
| MX | 1 | biforbiz-com.mail.protection.outlook.com |
| TXT | 2 | MS=ms52619326, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns19.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns19.domaincontrol.com, ns19.domaincontrol.com, ns20.domaincontrol.com...)
Analysis
Hierarchy
biforbiz.com is a parent of smtp.biforbiz.com.
IP Addresses
biforbiz.com points to a single IP number: 40.87.85.254.
Name Servers
Delegation for biforbiz.com rests with two name servers, ns19.domaincontrol.com and ns20.domaincontrol.com.
biforbiz.com shares the same name server setup as other domains, including kontengo.com, wikit.com, sheklawfirm.com, blinkup.net and lang123.com.
Host names with two IP numbers: ns19.domaincontrol.com points to 2603:5:21d0::a and 97.74.109.10; ns20.domaincontrol.com points to 2603:5:22d0::a and 173.201.77.10.
Mail Servers
biforbiz.com is handled by a single mail server, biforbiz-com.mail.protection.outlook.com.
biforbiz-com.mail.protection.outlook.com resolves to eight IP addresses: 2a01:111:f403:c801::, 2a01:111:f403:c902::5, 2a01:111:f403:f802::, 2a01:111:f403:f912::, 52.101.40.24, 52.101.41.56, 52.101.50.1 and 52.101.194.13.