mail.ustb.org - robtex.com
mail.ustb.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns3.afternic.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 97.74.98.65🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns3.afternic.com | ||||||
| NS | ns4.afternic.com ⚠️ Not in parent delegation | ||||||
| A | 173.201.66.65🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns4.namefind.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns3.afternic.comdns@jomax.net 2025-10-01 #0 | ||||||
ustb.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns3.afternic.com ⭐ | ||||||
| NS | ns4.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns3.afternic.comdns@jomax.net 2025-10-01 #0 | ||||||
Previously MX for
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns3.afternic.com2026-02-15 → 2026-07-12 · 2 obs
● 2026-07-12 01:54:26
●NSns4.afternic.com2026-02-15 → 2026-07-12 · 2 obs
● 2026-07-12 01:54:26
●A13.248.169.482026-02-15 → 2026-07-12 · 2 obs
● 2026-07-12 01:54:26
●A76.223.54.1462026-02-15 → 2026-07-12 · 2 obs
● 2026-07-12 01:54:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| ustb.org | ns4.afternic.com, ns3.afternic.com | - |
✅ Authoritative Response
Server:173.201.66.65
NS records: ns4.afternic.com, ns3.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ustb.org (unsigned zone)
⏱️ Timing
Total: 343ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 13.248.169.48, 76.223.54.146 |
| NS | 2 | ns3.afternic.com, ns4.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns3.afternic.com dns.jomax.net |
Analysis
IP Addresses
mail.ustb.org has two IP addresses: 13.248.169.48 and 76.223.54.146
62.116.9.142.dirnbacher.com, accountsource.com, copytradeworld.com and two other host names share IP numbers with mail.ustb.org.
Name Servers
mail.ustb.org is served by two delegated name servers, ns3.afternic.com and ns4.afternic.com.
mail.ustb.org uses the same name servers as several other domains — among them www.graphmate.com, www.cloudnow.technology, feinwein.com and two more.
There is at least partial name server overlap between mail.ustb.org and other domains — craca.com, rqbio.com, e-bm.com and two more among them.
The name servers verification-xca45ox5qyba6vycrpoay7.ns101.verify.hn, verification-v9cj3toiryqtzxaegkhtxg.ns101.verify.hn and verification-gx9m4qbbvukhxvxdk2zdbk.ns101.verify.hn are often found in combination with these name servers.
ns3.afternic.com → 97.74.98.65 and ns4.afternic.com → 173.201.66.65: one IP number per host name.