`mx1.stdp.ru`

DNSSEC	⚠️ Not signed
A	91.193.216.194^{🇷🇺 OBIT-AS91.193.216.0/24}
		PTR	`mail.stdp.ru`

`stdp.ru`

	DNSSEC	⚠️ Not signed
	A	95.213.158.90^{🇷🇺 SELECTEL95.213.158.0/24 -NET}
	NS	`dns1.petrovich.ru` ⭐
	NS	`dns1.obit.ru`
	NS	`dns2.obit.ru`
	NS	`dns2.petrovich.ru`
	MX	`mx1.stdp.ru` ⭐
	MX	`mx2.stdp.ru` ⭐
	MX	`mx3.stdp.ru`⁽²⁰⁾
	MX	`mx4.stdp.ru`⁽³⁰⁾
	MX	`mx5.stdp.ru`⁽³⁰⁾
	MX	`mx6.stdp.ru`⁽⁴⁰⁾
	TXT	`google-site-verification=lrHYPoNfULF3Qt8A5_JNPfbnW92EZYeYUqiKQR-wu7E`
	TXT	`v=spf1 +a +mx +a:mail.petrovich.ru +a:mx.stdp.ru -all`
	TXT	`_globalsign-domain-verification=9945aJNghGE6DBqbWkRBT8Kq6_KL_gdluxKhTX04KA`
	SOA	`dns1.petrovich.ru`dns@petrovich.ru 2026-06-02 #0

📈 Tranco rank: #118,490

MX for

stdp.ru

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DNS History

1 record (1 active, 0 former)

●A91.193.216.1942026-02-14 → 2026-06-02 · 2 obs

● 2026-02-14 17:46:18
● 2026-06-02 18:37:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...	-
stdp.ru	dns1.obit.ru, dns1.petrovich.ru, dns2.obit.ru, dns2.petrovich.ru	4 records

✅ Authoritative Response

Server:85.114.0.82

NS records: dns1.obit.ru, dns1.petrovich.ru, dns2.obit.ru, dns2.petrovich.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stdp.ru (unsigned zone)

⏱️ Timing

Total: 2510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.193.216.194`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.obit.ru, dns1.petrovich.ru, dns2.obit.ru...)

Analysis

Mail Server Role

mx1.stdp.ru is used as a mail server for stdp.ru.

mx2.stdp.ru, mx3.stdp.ru and mx4.stdp.ru are frequently seen as mail servers alongside mx1.stdp.ru.

IP Addresses

mx1.stdp.ru points to a single IP number: 91.193.216.194.

Other host names, for instance mx1.petrovich.tech, mx1.petrovichstd.com and mx1.petrovich.ru share IP numbers with mx1.stdp.ru.

mx1.stdp.ru - robtex.com

mx1.stdp.ru

stdp.ru