oshainstructor.com - robtex.com
oshainstructor.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 75.98.175.70🇺🇸 A2HOSTING75.98.160.0/20 A2 Hosting, Inc. | ||||||
| PTR | mi3-cl9-its5.a2hosting.com | ||||||
| NS | ns1.a2hosting.com ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.a2hosting.com | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.a2hosting.com ⚠️ Not in parent delegation | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.a2hosting.com ⚠️ Not in parent delegation | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | mail.oshainstructor.com ⭐ | ||||||
| A | 75.98.175.70🇺🇸 A2HOSTING75.98.160.0/20 A2 Hosting, Inc. | ||||||
| PTR | mi3-cl9-its5.a2hosting.com | ||||||
| TXT | v=spf1 +a +mx +ip4:75.98.175.70 include:spf.a2hosting.com ~all | ||||||
| SOA | ns1.a2hosting.comroot@mi3-cl9-its5.a2hosting.com 2026-03-08 #1 | ||||||
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=1774607892 | ||||||
Previously MX for
oshainstructor.com |
Subdomains
mail.oshainstructor.com |
Same first word
oshainstructor.com |
DNS History
10 records (6 active, 4 former)
○NSns.oneworldhosting.com2020-03-16 → 2020-03-16 · 3 obs
○ 2026-02-19 13:17:38
○ 2026-03-27 11:05:30
●NSns1.a2hosting.com2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
●NSns2.a2hosting.com2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
○NSns2.oneworldhosting.com2020-03-16 → 2020-03-16 · 3 obs
○ 2026-02-19 13:17:38
○ 2026-03-27 11:05:30
●NSns3.a2hosting.com2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
●NSns4.a2hosting.com2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
●MXmail.oshainstructor.com2026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
○MXoshainstructor.com2020-03-16 → 2020-03-16 · 3 obs
○ 2026-02-19 13:17:38
○ 2026-03-27 11:05:30
○A69.167.158.932020-03-16 → 2020-03-16 · 3 obs
○ 2026-02-19 13:17:38
○ 2026-03-27 11:05:30
●A75.98.175.702026-02-19 → 2026-03-27 · 3 obs
● 2026-02-19 13:17:38
● 2026-03-27 11:05:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net... | - |
| oshainstructor.com | ns1.a2hosting.com, ns2.a2hosting.com | 2 records |
✅ Authoritative Response
Server:75.2.118.134
NS records: ns1.a2hosting.com, ns2.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for oshainstructor.com (unsigned zone)
⏱️ Timing
Total: 239ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 75.98.175.70 |
| NS | 4 | ns3.a2hosting.com, ns4.a2hosting.com... |
| MX | 1 | mail.oshainstructor.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:75.98.175.70 include: |
| SOA | 1 | ns1.a2hosting.com root.mi3-cl9-its5.a2ho |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.a2hosting.com, ns2.a2hosting.com)
Analysis
Hierarchy
The parent of mail.oshainstructor.com is oshainstructor.com.
IP Addresses
oshainstructor.com points to a single IP number: 75.98.175.70.
Other host names, for instance peerably.com, sucava.com, sportscientistcanada.ca, ralu.ca and _dc-mx.83b6fa437ab4.techphernalia.com share IP numbers with oshainstructor.com.
Name Servers
oshainstructor.com is delegated to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
oshainstructor.com shares name servers with other domains at least partially, for instance evankoremodel.com, rudegear.com, sandys.kitchen, hellcrown.com and callingonbeth.net.
These name servers are commonly used with ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com and ns4.mysecurecloudhost.com.
Host names with a single IP:
ns1.a2hosting.com points to 13.248.158.180.
ns2.a2hosting.com points to 75.2.118.134.
ns3.a2hosting.com points to 76.223.26.245.
ns4.a2hosting.com points to 99.83.147.209.
Mail Servers
The mail server for oshainstructor.com is mail.oshainstructor.com.
Host name mail.oshainstructor.com resolves to IP 75.98.175.70.