`critsend.io`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c70b^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:2c70^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.44.112^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.199.11^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`desi.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a60^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c060^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`desi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2060^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`desi.ns.cloudflare.com`
		A	108.162.192.96^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desi.ns.cloudflare.com`
		A	172.64.32.96^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desi.ns.cloudflare.com`
		A	173.245.58.96^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desi.ns.cloudflare.com`
NS	`marvin.ns.cloudflare.com`
		A	2606:4700:58::a29f:2cfb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marvin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marvin.ns.cloudflare.com`
		A	108.162.195.251^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	162.159.44.251^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
		A	172.64.35.251^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marvin.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.44.112, 172.67.199.11
		IPv6	2606:4700:3030::ac43:c70b, 2606:4700:3033::6815:2c70
SOA	`desi.ns.cloudflare.com`dns@cloudflare.com serial=2395788855

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1774596207

Same first word

critsend.io

critsend.net

critsend.com

Similar names

DNS History

11 records (6 active, 5 former)

●NSdesi.ns.cloudflare.com2026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

●NSmarvin.ns.cloudflare.com2026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

○NSroxy.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:55:16
○ 2026-03-24 05:49:42
○ 2026-03-27 07:37:06

○NSwest.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:55:16
○ 2026-03-24 05:49:42
○ 2026-03-27 07:37:06

○MXsender46.critsend.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:55:16
○ 2026-03-24 05:49:42
○ 2026-03-27 07:37:06

○MXsuper1.critsend.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:55:16
○ 2026-03-24 05:49:42
○ 2026-03-27 07:37:06

●A104.21.44.1122026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

●A172.67.199.112026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

●A2606:4700:3030::ac43:c70b2026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

●A2606:4700:3033::6815:2c702026-03-24 → 2026-03-27 · 3 obs

○ 2017-03-16 17:55:16
● 2026-03-24 05:49:42
● 2026-03-27 07:37:06

○A62.210.93.642017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 17:55:16
○ 2026-03-24 05:49:42
○ 2026-03-27 07:37:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
critsend.io	desi.ns.cloudflare.com, marvin.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.96

NS records: desi.ns.cloudflare.com, marvin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for critsend.io (unsigned zone)

⏱️ Timing

Total: 483ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.44.112, 172.67.199.11`
AAAA	2	`2606:4700:3030::ac43:c70b, 2606:4700:3033::6815:2c70`
NS	2	`desi.ns.cloudflare.com, marvin.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`desi.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

critsend.io maps to four IP numbers: 2606:4700:3030::ac43:c70b, 2606:4700:3033::6815:2c70, 104.21.44.112 and 172.67.199.11.

Other host names, for instance wacs.us, if-mo.ru, i066h3.info, jiazhuangcheng.com and health-air-technology.com.cn share IP numbers with critsend.io.

Name Servers

Two name servers desi.ns.cloudflare.com and marvin.ns.cloudflare.com are delegated to critsend.io.

critsend.io uses the same name server configuration as other domains, such as coronavirusmedkits.com, orangecityarts.net, dailyburnfat.com, homeneedsmarket.com and priyaslovelykitchen.com.

critsend.io at least partially shares name servers with other domains such as behead.cn, commter.cn, instantupdatewire.pro, vouchery.sk and asia-gps.com.

These name servers are commonly used alongside wells.ns.cloudflare.com, serena.ns.cloudflare.com and odin.ns.cloudflare.com.

Host names with six IP numbers: Host name desi.ns.cloudflare.com points to 2606:4700:50::adf5:3a60, 2803:f800:50::6ca2:c060, 2a06:98c1:50::ac40:2060, 108.162.192.96, 172.64.32.96 and 173.245.58.96; host name marvin.ns.cloudflare.com points to 2606:4700:58::a29f:2cfb, 2803:f800:50::6ca2:c3fb, 2a06:98c1:50::ac40:23fb, 108.162.195.251, 162.159.44.251 and 172.64.35.251.

critsend.io - robtex.com

critsend.io

io

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`critsend.io`

`io`