`co-sin.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:4cad^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ⚠ Not in HTTPS hints
A	2606:4700:3037::ac43:c5fa^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ⚠ Not in HTTPS hints
A	104.21.76.173^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ⚠ Not in HTTPS hints
A	172.67.197.250^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ⚠ Not in HTTPS hints
NS	`eleanor.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26cd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eleanor.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2cd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`eleanor.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22cd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`eleanor.ns.cloudflare.com`
		A	108.162.194.205^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eleanor.ns.cloudflare.com`
		A	162.159.38.205^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eleanor.ns.cloudflare.com`
		A	172.64.34.205^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`eleanor.ns.cloudflare.com`
NS	`lewis.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c39f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lewis.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:239f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lewis.ns.cloudflare.com`
		A	108.162.195.159^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	162.159.44.159^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	172.64.35.159^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ⚠ 4 unhinted📌 2 extra
		IPv4	172.64.80.1
		IPv6	2606:4700:130:436c:6f75:6466:6c61:7265
SOA	`eleanor.ns.cloudflare.com`dns@cloudflare.com serial=2398971665

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291465

Same first word

co-sin.com

co-sin.net

co-sin.jp

Similar names

so-inc.net

soc-in.com

sio-cn.com

son-ic.com

s-icon.com

cons-i.com

i-scon.com

ins-co.com

c-sion.de

os-inc.co.jp

cos-in.com

i-cons.com

sin-co.it

cn-osi.com

nis-co.com

cos-ni.co.uk

i-cons.net

os-inc.jp

nico-s.de

i-cons.ch

c-sion.eu

cis-on.com

sci-on.com

c-sion.net

i-cons.nl

os-inc.info

i-cons.info

s-coin.com

sin-co.com

i-cons.ru

c-sion.com

so-inc.sakura.ne.jp

cs-ion.com

oc-ins.com

in-soc.com

ins-co.net

i-cons.eu

s-inco.de

sino-c.com

icon-s.com

coni-s.ch

i-cons.at

icon-s.de

os-inc.com

sci-on.net

sni-co.com

is-con.de

cons-i.ru

i-cons.de

si-con.eu

nsi-co.com

coin-s.com

ins-co.jp

sci-on.org

DNS History

13 records (6 active, 7 former)

●NSeleanor.ns.cloudflare.com2026-02-27 → 2026-03-23 · 3 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
● 2026-03-23 11:32:04

●NSlewis.ns.cloudflare.com2026-02-27 → 2026-03-23 · 3 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
● 2026-03-23 11:32:04

○NSns51.1and1.com2015-08-30 → 2016-09-21 · 4 obs

● 2015-08-30 05:40:58
● 2016-09-21 04:13:46
○ 2026-02-27 18:43:32
○ 2026-03-23 11:32:04

○NSns52.1and1.com2015-08-30 → 2016-09-21 · 4 obs

● 2015-08-30 05:40:58
● 2016-09-21 04:13:46
○ 2026-02-27 18:43:32
○ 2026-03-23 11:32:04

○MXmx00.1and1.com2015-08-30 → 2016-09-21 · 4 obs

● 2015-08-30 05:40:58
● 2016-09-21 04:13:46
○ 2026-02-27 18:43:32
○ 2026-03-23 11:32:04

○MXmx01.1and1.com2015-08-30 → 2016-09-21 · 4 obs

● 2015-08-30 05:40:58
● 2016-09-21 04:13:46
○ 2026-02-27 18:43:32
○ 2026-03-23 11:32:04

●A104.21.76.1732026-02-27 → 2026-03-23 · 3 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
● 2026-03-23 11:32:04

●A172.67.197.2502026-02-27 → 2026-03-23 · 3 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
● 2026-03-23 11:32:04

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-06 → 2026-03-06 · 4 obs

○ 2026-02-27 18:43:32
● 2026-03-06 04:19:10
○ 2026-03-14 17:56:04
○ 2026-03-23 11:32:04

●A2606:4700:3034::6815:4cad2026-02-27 → 2026-03-23 · 5 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
○ 2026-03-06 04:19:10
● 2026-03-14 17:56:04
● 2026-03-23 11:32:04

●A2606:4700:3037::ac43:c5fa2026-02-27 → 2026-03-23 · 5 obs

○ 2016-09-21 04:13:46
● 2026-02-27 18:43:32
○ 2026-03-06 04:19:10
● 2026-03-14 17:56:04
● 2026-03-23 11:32:04

○A74.208.215.1972016-09-21 → 2016-09-21 · 4 obs

○ 2016-03-26 19:58:26
● 2016-09-21 04:13:46
○ 2026-02-27 18:43:32
○ 2026-03-23 11:32:04

○A74.208.216.1492015-08-30 → 2016-03-26 · 4 obs

● 2015-08-30 05:40:58
● 2016-03-26 19:58:26
○ 2016-09-21 04:13:46
○ 2026-03-23 11:32:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
co-sin.net	eleanor.ns.cloudflare.com, lewis.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.205

NS records: eleanor.ns.cloudflare.com, lewis.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for co-sin.net (unsigned zone)

⏱️ Timing

Total: 453ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.197.250, 104.21.76.173`
AAAA	1	`2606:4700:130:436c:6f75:6466:6c61:7265`
NS	2	`eleanor.ns.cloudflare.com, lewis.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`eleanor.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

co-sin.net maps to four IP numbers: 2606:4700:3034::6815:4cad, 2606:4700:3037::ac43:c5fa, 104.21.76.173 and 172.67.197.250.

Other host names, for instance truemarketinggroup.com, melhornotebook.org, engyakainihuntangshengcheng.cfd, rochus.ro and www.vpnsafetydot.com share IP numbers with co-sin.net.

Name Servers

Two name servers eleanor.ns.cloudflare.com and lewis.ns.cloudflare.com handle delegation for co-sin.net.

co-sin.net uses the same name server setup as other domains, for example udevi17.net, thanglongosc.net, antaserasia.com, veltins-usa.com and doalytaxation.com.

co-sin.net partially shares name servers with other domains; examples include flashels.com, domedo.pl, prunexio.club, edisonnation.com and nheyser.com.

these name servers are commonly used with the name servers cullen.ns.cloudflare.com.

Host names with six IP numbers: eleanor.ns.cloudflare.com points to: 2606:4700:50::a29f:26cd, 2803:f800:50::6ca2:c2cd, 2a06:98c1:50::ac40:22cd, 108.162.194.205, 162.159.38.205 and 172.64.34.205; lewis.ns.cloudflare.com points to: 2606:4700:58::a29f:2c9f, 2803:f800:50::6ca2:c39f, 2a06:98c1:50::ac40:239f, 108.162.195.159, 162.159.44.159 and 172.64.35.159.

co-sin.net - robtex.com

co-sin.net

net

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`co-sin.net`

`net`