`phystech21.ru`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:9c1b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:224a^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.34.74^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.156.27^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`magdalena.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2608^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`magdalena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c208^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`magdalena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2208^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`magdalena.ns.cloudflare.com`
		A	108.162.194.8^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`magdalena.ns.cloudflare.com`
		A	162.159.38.8^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`magdalena.ns.cloudflare.com`
		A	172.64.34.8^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`magdalena.ns.cloudflare.com`
NS	`mario.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bcb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1cb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mario.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21cb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mario.ns.cloudflare.com`
		A	108.162.193.203^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	172.64.33.203^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
		A	173.245.59.203^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mario.ns.cloudflare.com`
MX	`_dc-mx.672a5bfdc8c9.phystech21.ru` ⭐
		A	138.201.132.148^{🇩🇪 Hetzner138.201.0.0/16 HETZNER-RZ-BLK-ERX4}
			PTR	`s18.hostia.name`
TXT	`v=spf1 a mx ip4:138.201.132.148 ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.34.74, 172.67.156.27
		IPv6 hints	2606:4700:3030::ac43:9c1b, 2606:4700:3036::6815:224a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=77, name=cloudflare-ech.com
SOA	`magdalena.ns.cloudflare.com`dns@cloudflare.com serial=2396706014

`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.net`hostmaster@ripn.net serial=4068484

Same first word

phystech21.ru

DNS History

19 records (7 active, 12 former)

●NSmagdalena.ns.cloudflare.com2026-03-10 → 2026-04-12 · 3 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-04-12 07:10:54

●NSmario.ns.cloudflare.com2026-03-10 → 2026-04-12 · 3 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-04-12 07:10:54

○NSns3-l2.nic.ru2015-07-13 → 2017-01-11 · 4 obs

● 2015-07-13 06:11:22
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

○NSns4-cloud.nic.ru2015-07-13 → 2017-01-11 · 4 obs

● 2015-07-13 06:11:22
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

○NSns4-l2.nic.ru2015-07-13 → 2017-01-11 · 4 obs

● 2015-07-13 06:11:22
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

○NSns8-cloud.nic.ru2015-07-13 → 2017-01-11 · 4 obs

● 2015-07-13 06:11:22
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

○NSns8-l2.nic.ru2015-07-13 → 2017-01-11 · 4 obs

● 2015-07-13 06:11:22
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

●MX_dc-mx.672a5bfdc8c9.phystech21.ru2026-03-10 → 2026-04-12 · 3 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-04-12 07:10:54

○MXmx.phystech21.ru2017-01-11 → 2017-01-11 · 3 obs

● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

●A104.21.34.742026-03-10 → 2026-04-12 · 5 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-03-14 18:34:24
○ 2026-03-29 05:24:58
● 2026-04-12 07:10:54

●A172.67.156.272026-03-10 → 2026-04-12 · 5 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-03-14 18:34:24
○ 2026-03-29 05:24:58
● 2026-04-12 07:10:54

○A188.114.96.02026-03-29 → 2026-03-29 · 3 obs

○ 2026-03-14 18:34:24
● 2026-03-29 05:24:58
○ 2026-04-12 07:10:54

○A188.114.97.02026-03-29 → 2026-03-29 · 3 obs

○ 2026-03-14 18:34:24
● 2026-03-29 05:24:58
○ 2026-04-12 07:10:54

●A2606:4700:3030::ac43:9c1b2026-03-10 → 2026-04-12 · 5 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-03-14 18:34:24
○ 2026-03-29 05:24:58
● 2026-04-12 07:10:54

●A2606:4700:3036::6815:224a2026-03-10 → 2026-04-12 · 5 obs

○ 2017-01-11 21:45:52
● 2026-03-10 06:12:50
● 2026-03-14 18:34:24
○ 2026-03-29 05:24:58
● 2026-04-12 07:10:54

○A2a06:98c1:3120::2026-03-29 → 2026-03-29 · 3 obs

○ 2026-03-14 18:34:24
● 2026-03-29 05:24:58
○ 2026-04-12 07:10:54

○A2a06:98c1:3121::2026-03-29 → 2026-03-29 · 3 obs

○ 2026-03-14 18:34:24
● 2026-03-29 05:24:58
○ 2026-04-12 07:10:54

○A81.5.72.2112017-01-11 → 2017-01-11 · 4 obs

○ 2016-05-05 10:58:08
● 2017-01-11 21:45:52
○ 2026-03-10 06:12:50
○ 2026-04-12 07:10:54

○A88.210.43.2052015-07-13 → 2016-05-05 · 4 obs

● 2015-07-13 06:11:22
● 2016-05-05 10:58:08
○ 2017-01-11 21:45:52
○ 2026-04-12 07:10:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	a.dns.ripn.net, d.dns.ripn.net, f.dns.ripn.net, b.dns.ripn.net...	-
phystech21.ru	magdalena.ns.cloudflare.com, mario.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.8

NS records: magdalena.ns.cloudflare.com, mario.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for phystech21.ru (unsigned zone)

⏱️ Timing

Total: 628ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.156.27, 104.21.34.74`
AAAA	2	`2606:4700:3030::ac43:9c1b, 2606:4700:3036::6815:224a`
NS	2	`magdalena.ns.cloudflare.com, mario.ns.cloudflare.com`
MX	1	`_dc-mx.672a5bfdc8c9.phystech21.ru (pri:`
TXT	1	`v=spf1 a mx ip4:138.201.132.148 ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`magdalena.ns.cloudflare.com dns.cloudfla`

Analysis

IP Addresses

Four IP numbers are pointed to by phystech21.ru: 2606:4700:3030::ac43:9c1b, 2606:4700:3036::6815:224a, 104.21.34.74 and 172.67.156.27.

other host names including sgwww.ip-adress.com, wjdy.cc, am-red.ip-adress.com, ae-post.de and play.ligo.pl share IP numbers with phystech21.ru.

Name Servers

phystech21.ru is delegated to two name servers magdalena.ns.cloudflare.com and mario.ns.cloudflare.com.

phystech21.ru shares the same name server setup as other domains, for instance rekam.org, domarivexon.com, perikanan.org, eraofinvention.com and inaturefilms.org.

phystech21.ru at least partially shares name servers with other domains, for instance nodefocusalpha.digital, class99.us, 365modulefocus.click, coqategussolutions.click and saintjamesaugusta.com.

These name servers are commonly used alongside jason.ns.cloudflare.com and elaine.ns.cloudflare.com.

Host names with six IP numbers:

Host name magdalena.ns.cloudflare.com points to: 2606:4700:50::a29f:2608, 2803:f800:50::6ca2:c208, 2a06:98c1:50::ac40:2208, 108.162.194.8, 162.159.38.8 and 172.64.34.8.

Host name mario.ns.cloudflare.com points to: 2606:4700:58::adf5:3bcb, 2803:f800:50::6ca2:c1cb, 2a06:98c1:50::ac40:21cb, 108.162.193.203, 172.64.33.203 and 173.245.59.203.

Mail Servers

phystech21.ru is handled by a single mail server, _dc-mx.672a5bfdc8c9.phystech21.ru.

_dc-mx.672a5bfdc8c9.phystech21.ru resolves to IP 138.201.132.148.

phystech21.ru - robtex.com

phystech21.ru

ru

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`phystech21.ru`

`ru`