system.expert - robtex.com
system.expert
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.19.154.98🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | redirect01.world4you.com | ||||||
| NS | ns1.world4you.at ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:32:253🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | ns1.world4you.at | ||||||
| A | 185.132.32.253🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | ns1.world4you.at | ||||||
| NS | ns2.world4you.at | ||||||
| A | 2001:8d8:fe:53:217:160:82:253🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| A | 217.160.82.253🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | ns2.world4you.at | ||||||
| MX | mail.system.expert ⭐ | ||||||
| A | 81.19.149.89🇦🇹 IONOS-AS81.19.144.0/20 World4You.com | ||||||
| PTR | mail34.world4you.com | ||||||
| TXT | v=spf1 mx include:spf.w4ymail.at -all | ||||||
| SOA | ns1.world4you.athostmaster@world4you.com 2025-03-27 #2 | ||||||
expert
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.expert ⭐ | ||||||
| NS | v0n1.nic.expert | ||||||
| NS | v0n2.nic.expert | ||||||
| NS | v0n3.nic.expert | ||||||
| NS | v2n0.nic.expert | ||||||
| NS | v2n1.nic.expert | ||||||
| SOA | v0n0.nic.experthostmaster@donuts.email serial=1778334402 | ||||||
Previously MX for
system.expert |
Subdomains
mail.system.expert |
Same first word
Similar names
DNS History
12 records (4 active, 8 former)
○NSkurumsal.internetsahibi.net2018-01-05 → 2018-01-05 · 4 obs
● 2018-01-05 23:42:48
○ 2026-03-13 00:37:06
○ 2026-05-09 14:20:36
○NSlin48.databilisim.com2016-12-11 → 2016-12-11 · 3 obs
○ 2018-01-05 23:42:48
○ 2026-05-09 14:20:36
○NSmaster.internetsahibi.net2018-01-05 → 2018-01-05 · 4 obs
● 2018-01-05 23:42:48
○ 2026-03-13 00:37:06
○ 2026-05-09 14:20:36
●NSns1.world4you.at2026-03-13 → 2026-05-09 · 3 obs
● 2026-03-13 00:37:06
● 2026-05-09 14:20:36
●NSns2.world4you.at2026-03-13 → 2026-05-09 · 3 obs
● 2026-03-13 00:37:06
● 2026-05-09 14:20:36
○NSux49.databilisim.com2016-12-11 → 2016-12-11 · 3 obs
○ 2018-01-05 23:42:48
○ 2026-05-09 14:20:36
●MXmail.system.expert2026-03-13 → 2026-05-09 · 3 obs
● 2026-03-13 00:37:06
● 2026-05-09 14:20:36
○MXmx.yandex.net2018-01-05 → 2018-01-05 · 4 obs
● 2018-01-05 23:42:48
○ 2026-03-13 00:37:06
○ 2026-05-09 14:20:36
○MXsystem.expert2016-12-11 → 2016-12-11 · 3 obs
○ 2018-01-05 23:42:48
○ 2026-05-09 14:20:36
○A185.172.146.112018-01-05 → 2018-01-05 · 4 obs
● 2018-01-05 23:42:48
○ 2026-03-13 00:37:06
○ 2026-05-09 14:20:36
○A78.135.103.1122016-12-11 → 2016-12-11 · 3 obs
○ 2018-01-05 23:42:48
○ 2026-05-09 14:20:36
●A81.19.154.982026-03-13 → 2026-05-09 · 3 obs
● 2026-03-13 00:37:06
● 2026-05-09 14:20:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| expert | v2n1.nic.expert, v2n0.nic.expert, v0n0.nic.expert, v0n2.nic.expert... | 12 records |
| system.expert | ns2.world4you.at, ns1.world4you.at | - |
✅ Authoritative Response
Server:217.160.82.253
NS records: ns2.world4you.at, ns1.world4you.at
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for system.expert (unsigned zone)
⏱️ Timing
Total: 1105ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.19.154.98 |
| NS | 2 | ns2.world4you.at, ns1.world4you.at |
| MX | 1 | mail.system.expert (pri: 10) |
| TXT | 1 | v=spf1 mx include:spf.w4ymail.at -all |
| SOA | 1 | ns1.world4you.at hostmaster.world4you.co |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v2n1.nic.expert, v2n0.nic.expert, v0n3.nic.expert...)
Analysis
Hierarchy
The parent of mail.system.expert is system.expert.
IP Addresses
system.expert points to IP number: 81.19.154.98.
Other host names such as bluehour.at, pilatesroom.at, hydraulik-pneumatik.at, kropiunik.at and wineclub.at share IPs with system.expert.
Name Servers
system.expert is delegated to two name servers: ns1.world4you.at and ns2.world4you.at.
system.expert shares the same name server setup as malberg.at, ahornblick.com, elektro-klose.at, hydrok(0x616e616c).at and brdabtenau.at.
system.expert shares some name servers with other domains, for instance spowi.at.
Host names with two IP numbers: ns1.world4you.at points to: 2607:f1c0:fe:53:185:132:32:253 and 185.132.32.253; ns2.world4you.at points to: 2001:8d8:fe:53:217:160:82:253 and 217.160.82.253.
Mail Servers
system.expert is handled by a single mail server, mail.system.expert.
mail.system.expert points to a single IP: 81.19.149.89.