sierraus.com - robtex.com
sierraus.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=1776045702 | ||||||
Subdomains
www.sierraus.com |
Same first word
sierraus.com |
Similar names
DNS History
10 records (5 active, 5 former)
●NSns03.domaincontrol.com2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 02:28:34
●NSns04.domaincontrol.com2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 02:28:34
○NSns17.domaincontrol.com2015-05-26 → 2016-07-25 · 3 obs
● 2016-07-25 06:14:42
○ 2026-04-13 02:28:34
○NSns18.domaincontrol.com2015-05-26 → 2016-07-25 · 3 obs
● 2016-07-25 06:14:42
○ 2026-04-13 02:28:34
○MXsierraus-com.mail.eo.outlook.com2015-05-26 → 2016-07-25 · 3 obs
● 2016-07-25 06:14:42
○ 2026-04-13 02:28:34
●MXsierraus-com.mail.protection.outlook.com2026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 02:28:34
●A15.197.148.332026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 02:28:34
●A3.33.130.1902026-04-13 → 2026-04-13 · 2 obs
● 2026-04-13 02:28:34
○A70.32.84.792016-07-25 → 2016-07-25 · 3 obs
● 2016-07-25 06:14:42
○ 2026-04-13 02:28:34
○A70.39.148.742015-05-26 → 2016-03-21 · 4 obs
● 2016-03-21 23:26:28
○ 2016-07-25 06:14:42
○ 2026-04-13 02:28:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sierraus.com | ns03.domaincontrol.com, ns04.domaincontrol.com | 4 records |
✅ Authoritative Response
Server:97.74.101.2
NS records: ns03.domaincontrol.com, ns04.domaincontrol.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sierraus.com (unsigned zone)
⏱️ Timing
Total: 120ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.33.130.190, 15.197.148.33 |
| NS | 2 | ns03.domaincontrol.com, ns04.domaincontrol.com |
| MX | 1 | sierraus-com.mail.protection.outlook.com |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns03.domaincontrol.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns03.domaincontrol.com, ns03.domaincontrol.com, ns04.domaincontrol.com...)
Analysis
Hierarchy
The parent of www.sierraus.com is sierraus.com.
IP Addresses
sierraus.com resolves to two IP numbers: 3.33.130.190 and 15.197.148.33.
Other host names, for instance play2win.co, chuur.com, reliantfireandsecurity.net, revointernet.com and acalltowisdom.com share IP numbers with sierraus.com.
Name Servers
Two name servers ns03.domaincontrol.com and ns04.domaincontrol.com handle delegation for sierraus.com.
sierraus.com uses the same name server setup as other domains, for example houstonsalsabootcamp.com, solfort.com, sages.co, aeins.com and odcfund.com.
Host names with two IP numbers:
ns03.domaincontrol.com points to: 2603:5:2150::2 and 97.74.101.2
ns04.domaincontrol.com points to: 2603:5:2250::2 and 173.201.69.2
Mail Servers
sierraus.com is handled by a single mail server, sierraus-com.mail.protection.outlook.com.
Hostname sierraus-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c903::3, 2a01:111:f403:c91d::a, 2a01:111:f403:f804::2, 2a01:111:f403:f903::, 52.101.8.34, 52.101.41.24, 52.101.194.13 and 52.101.194.15.