expanscience.ru - robtex.com
expanscience.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.241.133.91🇮🇪 Amazon34.240.0.0/13 EC2 DUB prefix | ||||||
| PTR | ec2-34-241-133-91.eu-west-1.compute.amazonaws.com | ||||||
| A | 54.217.23.62🇮🇪 Amazon54.216.0.0/15 EC2 DUB prefix | ||||||
| A | 54.220.193.125🇮🇪 Amazon54.220.0.0/16 EC2 DUB Prefix | ||||||
| NS | nsa.perf1.fr ⭐ | ||||||
| A | 2a01:c8:100::100🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1 | ||||||
| PTR | nsa.perf1.fr | ||||||
| A | 81.92.94.100🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1 | ||||||
| PTR | nsa.perf1.fr | ||||||
| NS | nsb.perf1.com | ||||||
| A | 2a01:c8:101::100🇫🇷 NAMESHIELD2a01:c8:100::/40 ANYCAST1-1 | ||||||
| PTR | nsb.perf1.com | ||||||
| A | 81.92.95.100🇫🇷 NAMESHIELD81.92.94.0/23 ANYCAST1-1 | ||||||
| PTR | nsb.perf1.com | ||||||
| NS | nsc.perf1.com | ||||||
| A | 2a09:35c0:102::100🇫🇷 NAMESHIELDGRP2a09:35c0:100::/40 NAMESHIELD ANYCAST1-2 | ||||||
| PTR | nsc.perf1.com | ||||||
| A | 152.89.172.100🇫🇷 NAMESHIELDGRP152.89.172.0/23 NAMESHIELD ANYCAST1-2 | ||||||
| PTR | nsc.perf1.com | ||||||
| MX | mx3.nameshield.com ⭐ | ||||||
| A | 81.92.84.191🇫🇷 NAMESHIELD81.92.84.0/23 DC1-1 | ||||||
| PTR | mx3.perf1.com | ||||||
| MX | mx4.nameshield.net(10) | ||||||
| A | 81.92.81.40🇫🇷 NAMESHIELD81.92.80.0/20 Nameshield-AS20756 | ||||||
| PTR | mx4.nameshield.net | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | nsa.perf1.frtechnical@nameshield.net 2025-09-29 #14 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4068311 | ||||||
Subdomains
www.expanscience.ru |
Same first word
DNS History
12 records (8 active, 4 former)
○NSns2.observatoiredesmarques.fr2020-02-24 → 2020-02-24 · 3 obs
○ 2026-03-06 00:19:46
○ 2026-03-28 22:05:34
○NSns3.nameshield.net2020-02-24 → 2020-02-24 · 3 obs
○ 2026-03-06 00:19:46
○ 2026-03-28 22:05:34
●NSnsa.perf1.fr2026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
●NSnsb.perf1.com2026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
●NSnsc.perf1.com2026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
○NSobs.ns1.fr2020-02-24 → 2020-02-24 · 3 obs
○ 2026-03-06 00:19:46
○ 2026-03-28 22:05:34
●MXmx3.nameshield.com2020-02-24 → 2026-03-28 · 2 obs
● 2026-03-28 22:05:34
●MXmx4.nameshield.net2020-02-24 → 2026-03-28 · 2 obs
● 2026-03-28 22:05:34
●A34.241.133.912026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
●A54.217.23.622026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
●A54.220.193.1252026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 00:19:46
● 2026-03-28 22:05:34
○A66.155.19.172020-02-24 → 2020-02-24 · 3 obs
○ 2026-03-06 00:19:46
○ 2026-03-28 22:05:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| expanscience.ru | nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com | - |
✅ Authoritative Response
Server:81.92.94.100
NS records: nsa.perf1.fr, nsb.perf1.com, nsc.perf1.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for expanscience.ru (unsigned zone)
⏱️ Timing
Total: 742ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 3 | 54.217.23.62, 54.220.193.125... |
| NS | 3 | nsa.perf1.fr, nsc.perf1.com... |
| MX | 2 | mx4.nameshield.net (pri: 10), mx3.nameshield.com (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | nsa.perf1.fr technical.nameshield.net |
Analysis
Hierarchy
expanscience.ru is the parent of www.expanscience.ru.
IP Addresses
expanscience.ru resolves to three IP numbers: 34.241.133.91, 54.217.23.62 and 54.220.193.125.
Other host names, for instance ec2-34-241-133-91.eu-west-1.compute.amazonaws.com, ec2-54-220-193-125.eu-west-1.compute.amazonaws.com, ec2-54-217-23-62.eu-west-1.compute.amazonaws.com, mustela.sg and expanscience.ca share IP numbers with expanscience.ru.
Name Servers
expanscience.ru delegates to three name servers: nsb.perf1.com, nsc.perf1.com and nsa.perf1.fr.
expanscience.ru shares some name servers with other domains, for example nouveaupactefinancier.org, se.com, groupama-mediterranee.com, prio-net.de and cpr-online.com.
These name servers are commonly paired with ns0.infravesi.com, ns1.infravesi.com, a.ns.developpement-durable.gouv.fr, b.ns.developpement-durable.gouv.fr, nsz.perf1.com, nsz.perf1.fr and ns1.coltfrance.com.
Host names with two IP numbers:
nsb.perf1.com: 2a01:c8:101::100 and 81.92.95.100
nsc.perf1.com: 2a09:35c0:102::100 and 152.89.172.100
nsa.perf1.fr: 2a01:c8:100::100 and 81.92.94.100
Mail Servers
expanscience.ru is served by two mail servers: mx3.nameshield.com and mx4.nameshield.net.
expanscience.ru shares the mail server setup with other domains, for example magicmaman.be, completudes.net, bmw-lille.fr, as-24.at and peugeot-montlucon.fr.
expanscience.ru shares some mail servers with other domains, at least partially, for instance agence-souslejardin.com, arthurimmoneuf.fr and immobiliersaint-raphael.com.
Host names with a single IP:
mx3.nameshield.com points to 81.92.84.191
mx4.nameshield.net points to 81.92.81.40