`ptr.sgu.ru`

DNSSEC	⚠️ Not signed
A	212.193.32.4^{🇷🇺 Comfortel212.193.32.0/21}
NS	`ns.sgu.ru` ⭐ ⚠️ Not in parent delegation
		A	2001:b08:e:1::4^{🇷🇺 niks2001:b08:e::/48 Saratov State University}
			PTR	`ns.sgu.ru`
		A	194.58.31.4^{🇷🇺 niks194.58.31.0/24}
			PTR	`ns.sgu.ru`
NS	`proxy.sgu.ru` ⚠️ Not in parent delegation
		A	2001:b08:e:1::7^{🇷🇺 niks2001:b08:e::/48 Saratov State University}
			PTR	`proxy.sgu.ru`
		A	194.58.31.7^{🇷🇺 niks194.58.31.0/24}
			PTR	`proxy.sgu.ru`
MX	`info.sgu.ru` ⭐
		A	2001:b08:e:1::4^{🇷🇺 niks2001:b08:e::/48 Saratov State University}
			PTR	`ns.sgu.ru`
		A	194.58.31.4^{🇷🇺 niks194.58.31.0/24}
			PTR	`ns.sgu.ru`
SOA	`ns.sgu.ru`root@ns.sgu.ru serial=2022766793

`sgu.ru`

	DNSSEC	⚠️ Not signed
	A	194.58.31.249^{🇷🇺 niks194.58.31.0/24}
	NS	`ns.sgu.ru` ⭐
	NS	`nse.sgu.ru`
	NS	`proxy.sgu.ru`
	MX	`info.sgu.ru` ⭐
	TXT	`mailru-domain: IoOmjkCva5E2ueZ3`
	TXT	`v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_sp...`
	TXT	`MS=4ABE64591AFDE60416804CDFBCFC81678F25C069`
	TXT	`mailru-domain: h1zaVC30qla4DcBF`
	SOA	`ns.sgu.ru`root@ns.sgu.ru 2026-04-22 #2

WOT: SAFE (70/100)
rank #47525 globally
rank #1378 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #35,637

Subdomains

wx21.ptr.sgu.ru

oldgw9.ptr.sgu.ru

csit-phi1-mic2.ptr.sgu.ru

w6-archeology.ptr.sgu.ru

poseidon.ptr.sgu.ru

pers-virt.ptr.sgu.ru

wx14.ptr.sgu.ru

wi54.ptr.sgu.ru

ipm.ptr.sgu.ru

host-huy.ptr.sgu.ru

romansvirt2.ptr.sgu.ru

body.ptr.sgu.ru

diablo.ptr.sgu.ru

mpi-m2.ptr.sgu.ru

ss01.ptr.sgu.ru

ss40.ptr.sgu.ru

epsilontachk.ptr.sgu.ru

carbon.ptr.sgu.ru

wx97.ptr.sgu.ru

csit-cuda1.ptr.sgu.ru

w10-yuristi.ptr.sgu.ru

wz61.ptr.sgu.ru

nout-nanobio.ptr.sgu.ru

dean.ptr.sgu.ru

slserver.ptr.sgu.ru

wkuis-06.ptr.sgu.ru

ovchinnikov.ptr.sgu.ru

wi72.ptr.sgu.ru

wz40.ptr.sgu.ru

nnv7.ptr.sgu.ru

ashub.ptr.sgu.ru

dsp2.ptr.sgu.ru

wx65.ptr.sgu.ru

b8r41-huy3.ptr.sgu.ru

msu-gues.ptr.sgu.ru

newmufs.ptr.sgu.ru

virt-demlit.ptr.sgu.ru

b3-kftt-cam1.ptr.sgu.ru

semicond1.ptr.sgu.ru

fox-eth2.ptr.sgu.ru

psyh-2.ptr.sgu.ru

w9-9b-wifi.ptr.sgu.ru

wz87.ptr.sgu.ru

w6-fk.ptr.sgu.ru

newmufp.ptr.sgu.ru

hz2-7a.ptr.sgu.ru

yurklinik-02.ptr.sgu.ru

b5r7-nout.ptr.sgu.ru

nas-zyxel.ptr.sgu.ru

mpi-n3.ptr.sgu.ru

chuzzle.ptr.sgu.ru

mushtakova.ptr.sgu.ru

geonout.ptr.sgu.ru

west-virt.ptr.sgu.ru

btserv-1-eth1.ptr.sgu.ru

compdot.ptr.sgu.ru

f24muf.ptr.sgu.ru

vovshicx-nout.ptr.sgu.ru

flint.ptr.sgu.ru

fint.ptr.sgu.ru

molecul-virt-2.ptr.sgu.ru

diablo-new.ptr.sgu.ru

wkuis-01.ptr.sgu.ru

monoblok.ptr.sgu.ru

wz57.ptr.sgu.ru

chemd06.ptr.sgu.ru

csit-phi1-mic0.ptr.sgu.ru

w12-414-03.ptr.sgu.ru

psyhcentr-04.ptr.sgu.ru

wkuis-02.ptr.sgu.ru

debsw7.ptr.sgu.ru

csit-new-16.ptr.sgu.ru

ss20.ptr.sgu.ru

wx70.ptr.sgu.ru

elmer.ptr.sgu.ru

nich-printer-hp.ptr.sgu.ru

wnb-29.ptr.sgu.ru

w9-vcserv-ilo.ptr.sgu.ru

w9-9v-vcbackup.ptr.sgu.ru

smurfik.ptr.sgu.ru

wnb-17.ptr.sgu.ru

wz12.ptr.sgu.ru

w10-308b-len2.ptr.sgu.ru

win.ptr.sgu.ru

w9-9v-nout.ptr.sgu.ru

wx24.ptr.sgu.ru

w1-39-1.ptr.sgu.ru

slug.ptr.sgu.ru

fag-nout-wireless.ptr.sgu.ru

hpvirt2.ptr.sgu.ru

wx63.ptr.sgu.ru

wx84.ptr.sgu.ru

w9r9v.ptr.sgu.ru

wx82.ptr.sgu.ru

prestigio.ptr.sgu.ru

trombone.ptr.sgu.ru

w16-sipakova.ptr.sgu.ru

nec.ptr.sgu.ru

nnn14.ptr.sgu.ru

tmf1.ptr.sgu.ru

notebook-mexmat.ptr.sgu.ru

wx85.ptr.sgu.ru

afftertachk.ptr.sgu.ru

wz56.ptr.sgu.ru

aq03.ptr.sgu.ru

w1-komend.ptr.sgu.ru

stiggie-pc.ptr.sgu.ru

prc-nout.ptr.sgu.ru

atilla.ptr.sgu.ru

wz02.ptr.sgu.ru

prc-nout1.ptr.sgu.ru

ss31.ptr.sgu.ru

newrector.ptr.sgu.ru

w8-tipo1.ptr.sgu.ru

aq09.ptr.sgu.ru

wi53.ptr.sgu.ru

mogaika-winvirt.ptr.sgu.ru

fnp1.ptr.sgu.ru

clustercsitcuda.ptr.sgu.ru

garfy.ptr.sgu.ru

nout-w9-9b.ptr.sgu.ru

wi02.ptr.sgu.ru

lidiya-new.ptr.sgu.ru

ist-adm-home.ptr.sgu.ru

wnb-31.ptr.sgu.ru

wz59.ptr.sgu.ru

stajer-serv-23.ptr.sgu.ru

sp-inginer1.ptr.sgu.ru

nnn11.ptr.sgu.ru

nout-fomin.ptr.sgu.ru

w12-526-14.ptr.sgu.ru

w9-podval1.ptr.sgu.ru

suslik.ptr.sgu.ru

Same first word

ptr.nu

ptr.im

ptr.it

ptr.name

ptr.mx

ptr.org.pl

ptr.be

ptr.fi

ptr.ac.th

ptr.ch

ptr.is

ptr.ee

ptr.sk

ptr.net.br

ptr.ltd

ptr.la

ptr.do

ptr.cz

ptr.com.cn

ptr.ro

ptr.net.pl

ptr.no

ptr.co.il

ptr.cl

ptr.dk

ptr.ru

ptr.us

ptr.cn

ptr.mobi

ptr.gg

ptr.com.au

ptr.bike

ptr.zone

ptr.fr

ptr.com.pl

ptr.ie

ptr.org

ptr.ca

ptr.kr

ptr.at

ptr.eu

ptr.to

ptr.network

ptr.de

ptr.asia

ptr.systems

ptr.com.tr

ptr.hu

ptr.name.tr

ptr.com

ptr.pt

ptr.moe

ptr.tw

ptr.se

ptr.co

ptr.jp

ptr.ir

ptr.spdns.org

ptr.re

ptr.co.uk

ptr.li

ptr.co.ir

ptr.de.com

ptr.edu.pl

ptr.rs

Similar names

rpt.com

trp.su

rtp.gg

prt.cz

rpt.net.au

trp.sh

tpr.com.tr

rtp.trafficmanager.net

tpr.co.jp

trp.com.ph

rtp.blue

tpr.cc

rtp.bio

prt.ee

rpt.name

rpt.coop

rtp.jp

rtp.ro

trp.hu

trp.eu

tpr.sk

prt.ch

trp.fi

rpt.co.uk

prt.gr

rpt.co.il

rpt.com.ua

prt.vg

rtp.at

rtp.lv

rpt.com.my

tpr.nu

rtp.coffee

trp.es

rtp.ventures

rtp.co.za

trp.tech

rpt.com.tr

trp.net

prt.pl

rpt.cc

rpt.te.ua

tpr.com.pk

tpr.one

rpt.gg

rtp.kz

tpr.co.kr

trp.in

tpr.pl

rtp.tv

rtp.guru

rpt.be

rtp.vc

trp.pt

rtp.co

rtp.ca

prt.it

prt.name

rtp.dk

prt.abbott

prt.org.mx

trp.com.cn

rpt.at

tpr.jp

prt.org

prt.cn

rtp.pt

prt.io

rtp.info

rpt.tw

prt.pt

tpr.de

prt.me

DNS History

4 records (4 active, 0 former)

●NSns.sgu.ru2015-08-28 → 2026-04-24 · 14 obs

● 2015-08-28 09:25:04
● 2026-03-08 07:07:18
○ 2026-03-12 11:32:58
○ 2026-03-13 23:18:20
● 2026-03-14 14:26:04
● 2026-03-27 15:41:14
○ 2026-03-30 14:16:16
● 2026-03-30 17:00:40
● 2026-04-14 11:30:52
○ 2026-04-14 14:48:10
● 2026-04-15 18:12:44
○ 2026-04-20 03:02:32
● 2026-04-21 00:40:18
● 2026-04-24 05:52:46

●NSproxy.sgu.ru2015-08-28 → 2026-04-24 · 30 obs

● 2015-08-28 09:25:04
● 2026-02-15 22:10:12
○ 2026-02-17 09:17:10
○ 2026-02-19 10:26:08
● 2026-02-19 13:45:38
● 2026-03-02 10:49:06
○ 2026-03-06 02:46:14
○ 2026-03-06 09:42:40
● 2026-03-08 07:07:18
○ 2026-03-12 11:32:58
○ 2026-03-15 00:53:12
● 2026-03-17 11:09:18
● 2026-03-18 09:31:40
○ 2026-03-19 10:03:12
● 2026-03-19 10:46:08
○ 2026-03-19 11:56:00
● 2026-03-19 14:25:32
● 2026-03-23 10:25:38
○ 2026-03-25 22:22:20
● 2026-03-26 01:02:40
● 2026-03-27 04:38:56
○ 2026-03-27 15:41:14
○ 2026-03-30 14:16:16
● 2026-03-30 17:00:40
● 2026-04-14 11:30:52
○ 2026-04-14 14:48:10
● 2026-04-15 18:12:44
○ 2026-04-20 03:02:32
● 2026-04-21 00:40:18
● 2026-04-24 05:52:46

●MXinfo.sgu.ru2015-08-28 → 2026-04-24 · 28 obs

● 2015-08-28 09:25:04
● 2026-02-15 22:10:12
○ 2026-02-17 09:17:10
● 2026-02-19 10:26:08
● 2026-03-02 10:49:06
○ 2026-03-06 02:46:14
○ 2026-03-06 09:42:40
● 2026-03-08 07:07:18
● 2026-03-12 11:32:58
○ 2026-03-13 23:18:20
● 2026-03-14 14:26:04
○ 2026-03-15 00:53:12
● 2026-03-17 11:09:18
○ 2026-03-18 09:31:40
● 2026-03-19 10:03:12
○ 2026-03-19 10:46:08
● 2026-03-19 11:56:00
● 2026-03-27 15:41:14
○ 2026-03-30 14:16:16
○ 2026-03-30 17:00:40
● 2026-03-31 12:32:34
● 2026-04-14 11:30:52
○ 2026-04-14 14:48:10
● 2026-04-15 18:12:44
● 2026-04-20 03:02:32
○ 2026-04-21 00:40:18
● 2026-04-24 01:02:12
● 2026-04-24 05:52:46

●A212.193.32.42015-08-28 → 2026-04-24 · 17 obs

● 2015-08-28 09:25:04
● 2026-03-06 02:46:14
○ 2026-03-06 09:42:40
○ 2026-03-12 11:32:58
● 2026-03-13 23:18:20
○ 2026-03-14 14:26:04
● 2026-03-15 00:53:12
● 2026-03-23 10:25:38
○ 2026-03-25 22:22:20
● 2026-03-26 01:02:40
● 2026-03-27 15:41:14
○ 2026-03-30 14:16:16
○ 2026-03-30 17:00:40
● 2026-03-31 12:32:34
○ 2026-04-10 15:34:52
● 2026-04-14 11:30:52
● 2026-04-24 05:52:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, b.dns.ripn.net, d.dns.ripn.net, e.dns.ripn.net...	-
sgu.ru	ns.sgu.ru, nse.sgu.ru, proxy.sgu.ru	3 records

✅ Authoritative Response

Server:194.58.31.4

NS records: ns.sgu.ru, nse.sgu.ru, proxy.sgu.ru

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sgu.ru (unsigned zone)

⏱️ Timing

Total: 824ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.193.32.4`
NS	2	`proxy.sgu.ru, ns.sgu.ru`
MX	1	`info.sgu.ru (pri: 5)`
SOA	1	`ns.sgu.ru root.ns.sgu.ru`

📌 Glue Records Collected

Total: 3

In-bailiwick: 3 (ns.sgu.ru, nse.sgu.ru, proxy.sgu.ru)

Analysis

Hierarchy

ptr.sgu.ru is a parent of wx21.ptr.sgu.ru, oldgw9.ptr.sgu.ru, csit-phi1-mic2.ptr.sgu.ru, w6-archeology.ptr.sgu.ru, poseidon.ptr.sgu.ru and hundreds of other host names.

IP Addresses

ptr.sgu.ru points to a single IP number: 212.193.32.4.

Name Servers

Delegation for ptr.sgu.ru rests with two name servers, ns.sgu.ru and proxy.sgu.ru.

ptr.sgu.ru at least partially shares name servers with other domains, for instance ssu.runnet.ru, 32.58.194.in-addr.arpa, toiit.sgu.ru, sgu.ru and 31.58.194.in-addr.arpa.

These name servers are often used together with nsl.sgu.ru, nse.sgu.ru, ns.runnet.ru, ns2.sgu.ru and ns.bfsgu.ru.

Host names with two IP numbers: ns.sgu.ru points to 2001:b08:e:1::4 and 194.58.31.4; proxy.sgu.ru points to 2001:b08:e:1::7 and 194.58.31.7.

Mail Servers

ptr.sgu.ru is handled by a single mail server, info.sgu.ru.

ptr.sgu.ru uses the same mail server configuration as other domains, such as sgu.ru, mail.sgu.ru, cs.sgu.ru, info.sgu.ru and chem.sgu.ru.

info.sgu.ru resolves to two IP numbers: 2001:b08:e:1::4 and 194.58.31.4.

ptr.sgu.ru - robtex.com

ptr.sgu.ru

sgu.ru