firstdev.ru - dns.ninja
firstdev.ru
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.240.87.248🇷🇺 RU-JSCIOT91.240.86.0/23 | ||||||
| PTR | ns1.firstdev.ru | ||||||
| NS | ns1.firstdev.ru ⭐ | ||||||
| A | 91.240.87.248🇷🇺 RU-JSCIOT91.240.86.0/23 | ||||||
| PTR | ns1.firstdev.ru | ||||||
| NS | ns2.firstdev.ru | ||||||
| A | 91.132.224.229🇷🇴 CLODO91.132.224.0/24 | ||||||
| PTR | nl.firstdev.ru | ||||||
| MX | ns1.firstdev.ru ⭐ | ||||||
| A | 91.240.87.248🇷🇺 RU-JSCIOT91.240.86.0/23 | ||||||
| PTR | ns1.firstdev.ru | ||||||
| TXT | 115b8369-5a08-4d5b-8b3c-acaedcf07cc4 | ||||||
| TXT | v=spf1 ip4:37.46.129.186 a:smtp.fvds.ru -all | ||||||
| SOA | ns1.firstdev.ruhostmaster@firstdev.ru 2026-05-25 #3 | ||||||
ru
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.dns.ripn.net ⭐ | ||||||
| NS | b.dns.ripn.net | ||||||
| NS | c.tld-servers.ru | ||||||
| NS | d.dns.ripn.net | ||||||
| NS | e.dns.ripn.net | ||||||
| NS | f.dns.ripn.net | ||||||
| SOA | a.dns.ripn.nethostmaster@ripn.net serial=4069912 | ||||||
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
●NSns1.firstdev.ru2026-06-17 → 2026-08-08 · 3 obs
○ 2018-11-11 23:54:26
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
○NSns1.reg.ru2018-11-11 → 2018-11-11 · 3 obs
● 2018-11-11 23:54:26
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
●NSns2.firstdev.ru2026-06-17 → 2026-08-08 · 3 obs
○ 2018-11-11 23:54:26
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
○NSns2.reg.ru2018-11-11 → 2018-11-11 · 3 obs
● 2018-11-11 23:54:26
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
○MXmx.yandex.net2018-11-11 → 2018-11-11 · 3 obs
● 2018-11-11 23:54:26
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
●MXns1.firstdev.ru2026-06-17 → 2026-08-08 · 3 obs
○ 2018-11-11 23:54:26
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
○A212.47.226.1872018-11-11 → 2018-11-11 · 3 obs
● 2018-11-11 23:54:26
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
○ 2026-06-17 18:03:36
○ 2026-08-08 11:46:46
●A91.240.87.2482026-06-17 → 2026-08-08 · 3 obs
○ 2018-11-11 23:54:26
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
● 2026-06-17 18:03:36
● 2026-08-08 11:46:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | d.dns.ripn.net, b.dns.ripn.net, f.dns.ripn.net, a.dns.ripn.net... | - |
| firstdev.ru | ns2.firstdev.ru, ns1.firstdev.ru | 2 records |
✅ Authoritative Response
Server:91.240.87.248
NS records: ns2.firstdev.ru, ns1.firstdev.ru
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for firstdev.ru (unsigned zone)
⏱️ Timing
Total: 842ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.240.87.248 |
| NS | 2 | ns1.firstdev.ru, ns2.firstdev.ru |
| MX | 1 | ns1.firstdev.ru (pri: 10) |
| TXT | 2 | 115b8369-5a08-4d5b-8b3c-acaedcf07cc4, v=spf1 ip4:37.46.129.186 a:smtp.fvds.ru |
| SOA | 1 | ns1.firstdev.ru hostmaster.firstdev.ru |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.firstdev.ru, ns2.firstdev.ru)
Analysis
IP Addresses
firstdev.ru resolves to just one IP address, 91.240.87.248.
Among the host names that share IP numbers with firstdev.ru is zhuko.ff.fvds.ru, as one example.
Name Servers
The NS records for firstdev.ru delegate to ns1.firstdev.ru and ns2.firstdev.ru.
ns1.firstdev.ru directs to 91.240.87.248 and ns2.firstdev.ru directs to 91.132.224.229; each host name points to exactly one IP number.