coreweb1.phtstudy.com - dns.ninja
coreweb1.phtstudy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.97.74.17🇺🇸 COGENT38.0.0.0/8 Cogent | ||||||
phtstudy.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.97.74.17🇺🇸 COGENT38.0.0.0/8 Cogent | ||||||
| NS | ertns01.ert.com ⭐ | ||||||
| NS | ertns02.ert.com | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(5) | ||||||
| MX | alt2.aspmx.l.google.com(5) | ||||||
| MX | aspmx2.googlemail.com(10) | ||||||
| MX | aspmx3.googlemail.com(10) | ||||||
| MX | hodsmtp01.phtcorp.com(900) | ||||||
| MX | smtp1.ert.com(900) | ||||||
| MX | smtp2.ert.com(900) | ||||||
| TXT | google-site-verification=hNoRlsyDrgDKHJSmojmk9UWXprguymtyCfB6qIKX0Ok | ||||||
| TXT | v=spf1 mx ip4:205.220.181.246 ip4:205.220.170.136 ip4:148.163.151.99 ip4:148.... | ||||||
| SOA | ertns01.ert.comhostmaster@ert.com 2026-07-21 #1 | ||||||
DNS History
2 records (1 active, 1 former)
○A207.154.10.1002015-06-07 → 2016-05-05 · 4 obs
● 2015-06-07 12:48:02
● 2016-05-05 17:24:04
○ 2026-04-29 10:30:10
○ 2026-07-27 18:28:52
● 2016-05-05 17:24:04
○ 2026-04-29 10:30:10
○ 2026-07-27 18:28:52
●A38.97.74.172026-04-29 → 2026-07-27 · 3 obs
○ 2016-05-05 17:24:04
● 2026-04-29 10:30:10
● 2026-07-27 18:28:52
● 2026-04-29 10:30:10
● 2026-07-27 18:28:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net... | - |
| phtstudy.com | ertns01.ert.com, ertns02.ert.com | 2 records |
✅ Authoritative Response
Server:8.19.195.2
NS records: ertns01.ert.com, ertns02.ert.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for phtstudy.com (unsigned zone)
⏱️ Timing
Total: 84ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.97.74.17 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ertns01.ert.com, ertns02.ert.com)
Analysis
IP Addresses
coreweb1.phtstudy.com resolves to just one IP address, 38.97.74.17.
Two other host names, along with sqeweb01.phtstudy.com, logpadweb2.phtstudy.com and zeus.phtstudy.com, also share IP numbers with coreweb1.phtstudy.com.