holbertbros.com - robtex.com
holbertbros.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=1775130422 | ||||||
Same first word
holbertbros.com |
DNS History
8 records (5 active, 3 former)
●NSns61.domaincontrol.com2015-08-17 → 2026-04-02 · 2 obs
● 2026-04-02 11:59:48
●NSns62.domaincontrol.com2015-08-17 → 2026-04-02 · 2 obs
● 2026-04-02 11:59:48
●MXholbertbros-com.mail.protection.outlook.com2026-04-02 → 2026-04-02 · 3 obs
● 2026-04-02 11:59:46
● 2026-04-02 11:59:48
○MXmailstore1.secureserver.net2015-08-17 → 2017-09-27 · 4 obs
● 2017-09-27 16:39:00
○ 2026-04-02 11:59:46
○ 2026-04-02 11:59:48
○MXsmtp.secureserver.net2015-08-17 → 2017-09-27 · 4 obs
● 2017-09-27 16:39:00
○ 2026-04-02 11:59:46
○ 2026-04-02 11:59:48
●A15.197.225.1282026-04-02 → 2026-04-02 · 3 obs
● 2026-04-02 11:59:46
● 2026-04-02 11:59:48
○A184.168.47.2252015-08-17 → 2017-09-27 · 4 obs
● 2017-09-27 16:39:00
○ 2026-04-02 11:59:46
○ 2026-04-02 11:59:48
●A3.33.251.1682026-04-02 → 2026-04-02 · 3 obs
● 2026-04-02 11:59:46
● 2026-04-02 11:59:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net... | - |
| holbertbros.com | ns61.domaincontrol.com, ns62.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:173.201.69.32
NS records: ns61.domaincontrol.com, ns62.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for holbertbros.com (unsigned zone)
⏱️ Timing
Total: 68ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 15.197.225.128, 3.33.251.168 |
| NS | 2 | ns61.domaincontrol.com, ns62.domaincontrol.com |
| MX | 1 | holbertbros-com.mail.protection.outlook. |
| TXT | 2 | v=spf1 include:secureserver.net -all, NETORGFT8788627.onmicrosoft.com |
| SOA | 1 | ns61.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns61.domaincontrol.com, ns61.domaincontrol.com, ns62.domaincontrol.com...)
Analysis
IP Addresses
holbertbros.com points to two IP numbers: 3.33.251.168 and 15.197.225.128.
Other host names, for instance centurionflightcenter.com, cdbim.net, esp-recruit.net, michaelfaraday.net and hzgrandville.com share IP numbers with holbertbros.com.
Name Servers
holbertbros.com is delegated to two name servers: ns61.domaincontrol.com and ns62.domaincontrol.com.
holbertbros.com uses the same name server setup as other domains, for instance jlpublications.com, autoplicity.net, invertedhammer.com, saalaram.com and hlelectronic.com.
holbertbros.com shares name servers with other domains at least partially, for instance nhvh.ca and joedubs.com.
Host names with two IP numbers:
The host ns61.domaincontrol.com points to 2603:5:2153::20 and 97.74.101.32.
The host ns62.domaincontrol.com points to 2603:5:2253::20 and 173.201.69.32.
Mail Servers
The mail server for holbertbros.com is holbertbros-com.mail.protection.outlook.com.
Host holbertbros-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c802::, 2a01:111:f403:c803::, 2a01:111:f403:c902::16, 2a01:111:f403:f90a::, 52.101.10.5, 52.101.41.26, 52.101.50.7 and 52.101.194.12.