sfdev.ru - dns.ninja
sfdev.ru
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.yandex.net ⭐ | ||||||
| A | 2a02:6b8::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| A | 213.180.204.213🇷🇺 TELETECH213.180.192.0/19 Yandex network | ||||||
| PTR | dns1.yandex.net | ||||||
| NS | dns2.yandex.net | ||||||
| A | 2a02:6b8:0:1::213🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | dns2.yandex.net | ||||||
| A | 93.158.134.213🇷🇺 TELETECH93.158.128.0/18 Yandex enterprise network | ||||||
| PTR | dns2.yandex.net | ||||||
| MX | mx.yandex.ru ⭐ | ||||||
| A | 2a02:6b8::311🇷🇺 TELETECH2a02:6b8::/32 Yandex network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| A | 77.88.21.249🇷🇺 TELETECH77.88.0.0/18 Yandex enterprise network | ||||||
| PTR | mxfront.stable.qloud-b.yandex.net | ||||||
| TXT | v=spf1 redirect=_spf.yandex.net | ||||||
| SOA | dns1.yandex.netdns-hosting@yandex.ru serial=6 | ||||||
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=4069818 | ||||||
Same first word
Similar names
DNS History
6 records (3 active, 3 former)
●NSdns1.yandex.net2015-08-13 → 2026-07-31 · 2 obs
● 2026-07-31 18:27:42
●NSdns2.yandex.net2015-08-13 → 2026-07-31 · 2 obs
● 2026-07-31 18:27:42
○A31.220.44.2232016-02-20 → 2016-08-09 · 5 obs
● 2016-02-20 02:09:28
● 2016-08-09 23:08:18
○ 2016-11-16 23:12:24
○ 2026-07-31 18:27:42
○A78.47.244.1842015-08-13 → 2016-02-04 · 4 obs
● 2016-02-04 13:34:32
○ 2016-02-20 02:09:28
○ 2026-07-31 18:27:42
○A95.85.28.2242016-11-16 → 2026-06-14 · 5 obs
● 2016-11-16 23:12:24
● 2026-06-14 07:50:20
○ 2026-07-31 18:27:40
○ 2026-07-31 18:27:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ru | a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net... | - |
| sfdev.ru | dns1.yandex.net, dns2.yandex.net | - |
✅ Authoritative Response
Server:213.180.204.213
NS records: dns1.yandex.net, dns2.yandex.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfdev.ru (unsigned zone)
⏱️ Timing
Total: 957ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.85.28.224 |
| NS | 2 | dns2.yandex.net, dns1.yandex.net |
| MX | 1 | mx.yandex.ru (pri: 10) |
| TXT | 1 | v=spf1 redirect=_spf.yandex.net |
| SOA | 1 | dns1.yandex.net dns-hosting.yandex.ru |
Analysis
Name Servers
sfdev.ru is delegated to two name servers: dns1.yandex.net and dns2.yandex.net.
sfdev.ru shares its NS records with other domains, for example geningconsult.ru, bryanskvorota.ru, kmgrp.ru and two others.
At least some of sfdev.ru's name servers are shared with other domains, for example zhulen.ru, lekprice.ru, leaderit.ru and two more.
These name servers tend to be deployed in combination with the name servers dns1.yandex.ru and dns2.yandex.ru.
dns1.yandex.net and dns2.yandex.net each resolve to two IP addresses: dns1.yandex.net points to 213.180.204.213 and 2a02:6b8::213, while dns2.yandex.net points to 93.158.134.213 and 2a02:6b8:0:1::213.
Mail Servers
The sole mail server for sfdev.ru is mx.yandex.ru.
Among the domains sharing a mail server setup with sfdev.ru are energoautotrans.ru, bor-man.ru, bloknotborisoglebsk.ru and two others.
There is at least a partial MX overlap between sfdev.ru and other domains, including dksoft.net, marvery.ru, tdinter.com and two others.
mx.yandex.ru directs to two IP numbers, 77.88.21.249 and 2a02:6b8::311.