`scienceandtech.ru`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:5f06^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:8e77^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.95.6^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.119^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`brenda.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a4d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`brenda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`brenda.ns.cloudflare.com`
		A	108.162.192.77^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	172.64.32.77^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
		A	173.245.58.77^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`brenda.ns.cloudflare.com`
NS	`rick.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b8b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c18b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rick.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:218b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rick.ns.cloudflare.com`
		A	108.162.193.139^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	172.64.33.139^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
		A	173.245.59.139^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rick.ns.cloudflare.com`
TXT	`google-site-verification=ULAQrAiSclgzZXDeUFYeZQqEnLUhtzNVWqQHk_JcFnM`
TXT	`google-site-verification=sjk2UAsC-RGa1ZuX-vXTlAXTUKR9ClwVCiC-OvDISdE`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.95.6, 172.67.142.119
		IPv6 hints	2606:4700:3030::6815:5f06, 2606:4700:3031::ac43:8e77
SOA	`brenda.ns.cloudflare.com`dns@cloudflare.com serial=2400022519

`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=4068629

rank #24620 globally
rank #515 in the tld
📈 Tranco rank: #97,949

Same first word

scienceandtech.ru

scienceandtech.org

scienceandtech.gov.ng

Similar names

techandscience.com

DNS History

15 records (6 active, 9 former)

●NSbrenda.ns.cloudflare.com2026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

○NSns1.beget.com2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

○NSns1.beget.pro2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

○NSns1.beget.ru2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

○NSns2.beget.com2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

○NSns2.beget.pro2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

○NSns2.beget.ru2019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

●NSrick.ns.cloudflare.com2026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

○MXmx1.beget.com2019-12-20 → 2026-02-15 · 4 obs

● 2019-12-20 09:22:30
● 2026-02-15 22:00:30
○ 2026-02-19 00:17:14
○ 2026-04-24 08:20:32

○MXmx2.beget.com2019-12-20 → 2026-02-15 · 4 obs

● 2019-12-20 09:22:30
● 2026-02-15 22:00:30
○ 2026-02-19 00:17:14
○ 2026-04-24 08:20:32

●A104.21.95.62026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

●A172.67.142.1192026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

●A2606:4700:3030::6815:5f062026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

●A2606:4700:3031::ac43:8e772026-02-14 → 2026-04-24 · 3 obs

○ 2019-12-20 09:22:30
● 2026-02-14 19:11:38
● 2026-04-24 08:20:32

○A87.236.16.172019-12-20 → 2019-12-20 · 3 obs

● 2019-12-20 09:22:30
○ 2026-02-14 19:11:38
○ 2026-04-24 08:20:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ru	d.dns.ripn.net, e.dns.ripn.net, b.dns.ripn.net, a.dns.ripn.net...	-
scienceandtech.ru	rick.ns.cloudflare.com, brenda.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.139

NS records: rick.ns.cloudflare.com, brenda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for scienceandtech.ru (unsigned zone)

⏱️ Timing

Total: 837ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.95.6, 172.67.142.119`
AAAA	2	`2606:4700:3031::ac43:8e77, 2606:4700:3030::6815:5f06`
NS	2	`brenda.ns.cloudflare.com, rick.ns.cloudflare.com`
TXT	2	`google-site-verification=ULAQrAiSclgzZXD, google-site-verification=sjk2UAsC-RGa1Zu`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`brenda.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

Four IP numbers are pointed to by scienceandtech.ru: 2606:4700:3030::6815:5f06, 2606:4700:3031::ac43:8e77, 104.21.95.6 and 172.67.142.119.

other host names including pony-visa.by, mail.powerart.pl, nihongoclassroom.com, quizwizapp.com and vysledky-live.sk share IP numbers with scienceandtech.ru.

Name Servers

scienceandtech.ru is delegated to two name servers brenda.ns.cloudflare.com and rick.ns.cloudflare.com.

scienceandtech.ru shares the same name server setup as other domains, for instance allstream.it, marussiamotors.ru, orenairport.ru, minkomsvjaz.ru and spbustavsud.ru.

scienceandtech.ru at least partially shares name servers with other domains, for instance xsj2006.com, tftscherm.net, fatura-tl.com, concours-solon.fr and ycxpwx.com.

These name servers are commonly used alongside hans.ns.cloudflare.com and heather.ns.cloudflare.com.

Host names with six IP numbers:

Host name brenda.ns.cloudflare.com points to: 2606:4700:50::adf5:3a4d, 2803:f800:50::6ca2:c04d, 2a06:98c1:50::ac40:204d, 108.162.192.77, 172.64.32.77 and 173.245.58.77.

Host name rick.ns.cloudflare.com points to: 2606:4700:58::adf5:3b8b, 2803:f800:50::6ca2:c18b, 2a06:98c1:50::ac40:218b, 108.162.193.139, 172.64.33.139 and 173.245.59.139.

scienceandtech.ru - robtex.com