pfhstudyworld.com - robtex.com
pfhstudyworld.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=1774504172 | ||||||
Same first word
pfhstudyworld.com |
DNS History
11 records (7 active, 4 former)
●NSnsa4.schlundtech.de2015-08-06 → 2026-03-26 · 2 obs
● 2026-03-26 06:16:10
●NSnsb4.schlundtech.de2015-08-06 → 2026-03-26 · 2 obs
● 2026-03-26 06:16:10
●NSnsc4.schlundtech.de2015-08-06 → 2026-03-26 · 2 obs
● 2026-03-26 06:16:10
●NSnsd4.schlundtech.de2015-08-06 → 2026-03-26 · 2 obs
● 2026-03-26 06:16:10
●MXmailgateway.pfh.de2026-03-01 → 2026-03-26 · 2 obs
● 2026-03-26 06:16:10
○A146.75.118.1912026-03-21 → 2026-03-21 · 4 obs
● 2026-03-21 01:30:38
○ 2026-03-26 06:16:08
○ 2026-03-26 06:16:10
○A146.75.122.1912026-03-01 → 2026-03-01 · 3 obs
○ 2026-03-15 20:12:12
○ 2026-03-26 06:16:10
●A199.232.74.1912026-03-15 → 2026-03-26 · 6 obs
● 2026-03-15 20:12:12
● 2026-03-16 07:23:04
○ 2026-03-21 01:30:38
● 2026-03-26 06:16:08
● 2026-03-26 06:16:10
○A2a04:4e42:52::7032026-03-01 → 2026-03-21 · 7 obs
● 2026-03-15 20:12:12
○ 2026-03-16 02:27:58
● 2026-03-16 07:23:04
● 2026-03-21 01:30:38
○ 2026-03-26 06:16:08
○ 2026-03-26 06:16:10
●A2a04:4e42:8d::7032026-03-26 → 2026-03-26 · 3 obs
● 2026-03-26 06:16:08
● 2026-03-26 06:16:10
○A2a04:4e42:8e::7032026-03-16 → 2026-03-16 · 5 obs
○ 2026-03-15 20:12:12
● 2026-03-16 02:27:58
○ 2026-03-16 07:23:04
○ 2026-03-26 06:16:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, a.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net... | - |
| pfhstudyworld.com | nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de, nsd4.schlundtech.de | - |
✅ Authoritative Response
Server:217.160.80.227
NS records: nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de, nsd4.schlundtech.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for pfhstudyworld.com (unsigned zone)
⏱️ Timing
Total: 488ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 146.75.118.191 |
| AAAA | 1 | 2a04:4e42:52::703 |
| NS | 4 | nsc4.schlundtech.de, nsd4.schlundtech.de... |
| MX | 1 | mailgateway.pfh.de (pri: 0) |
| SOA | 1 | nsa4.schlundtech.de admin-c.managementak |
Analysis
IP Addresses
pfhstudyworld.com resolves to two IP numbers: 2a04:4e42:8d::703 and 199.232.74.191.
Name Servers
pfhstudyworld.com's delegation is handled by four name servers: nsa4.schlundtech.de, nsb4.schlundtech.de, nsc4.schlundtech.de and nsd4.schlundtech.de.
pfhstudyworld.com partially shares name servers with other domains; examples include trickart.de, podcast-streaming.de, zoom-in.eu, novotecserver4.de and ramtiga.net.
Host names with two IPs:
nsa4.schlundtech.de points to 2607:f1c0:fe:53:185:132:34:227 and 185.132.34.227
nsb4.schlundtech.de points to 2607:f1c0:fe:53:185:132:35:227 and 185.132.35.227
nsc4.schlundtech.de points to 2001:8d8:fe:53:217:160:80:227 and 217.160.80.227
nsd4.schlundtech.de points to 2001:8d8:fe:53:217:160:81:227 and 217.160.81.227
Mail Servers
pfhstudyworld.com is handled by a single mail server, mailgateway.pfh.de.
pfhstudyworld.com uses the same mail server setup as other domains, for example fernstudium-pfh.de.
pfhstudyworld.com shares at least partially some mail servers with other domains, for instance managementakademie.de and macromedia.de.
These mail servers are often used with mailer2.managementakademie.de, s0mtsvmx01.macromedia.de, host-188-174-233-182.customer.m-online.net and macromedia-de.mail.protection.outlook.com.
mailgateway.pfh.de points to a single IP: 162.19.141.170.