sysctl.io - dns.ninja

`sysctl.io`

DNSSEC	⚠️ Not signed
A	139.177.179.60^{🇩🇪 AKAMAI-LINODE-AP139.177.176.0/21 Akamai Technologies}
		PTR	`139-177-179-60.ip.linodeusercontent.com`
NS	`jo.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jo.ns.cloudflare.com`
		A	108.162.192.172^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	172.64.32.172^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	173.245.58.172^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
NS	`justin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bbb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`justin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`justin.ns.cloudflare.com`
		A	108.162.193.187^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	172.64.33.187^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
		A	173.245.59.187^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`justin.ns.cloudflare.com`
MX	`mx.sysctl.io` ⭐
TXT	`v=spf1 a mx ip4:10.100.1.4 ~all`
SOA	`jo.ns.cloudflare.com`dns@cloudflare.com serial=2407873194

`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=1782620621

📈 Tranco rank: #356,032

Subdomains

mx.sysctl.io

osaka.sysctl.io

relay.sysctl.io

frankfurt.sysctl.io

Same first word

sysctl.date

sysctl.org

sysctl.eu

sysctl.ru

sysctl.me

sysctl.io

sysctl.se

sysctl.com

sysctl.co.uk

sysctl.dk

sysctl.co

sysctl.xyz

sysctl.net

sysctl.de

Similar names

tlcsys.com.ar

lctsys.com

tlsysc.com

tcssly.com

ctlsys.com

sylsct.com

ycsstl.com

cytsls.com

lstycs.com

ystscl.net

tcsysl.com

scstly.org

tslysc.com

csstly.com

cltyss.com

ltcsys.com

sclsyt.com

lcstys.com

tlcsys.com

tysscl.com

tycsls.com

DNS History

4 records (4 active, 0 former)

●NSjo.ns.cloudflare.com2026-03-28 → 2026-06-28 · 2 obs

● 2026-03-28 08:49:14
● 2026-06-28 05:01:12

●NSjustin.ns.cloudflare.com2026-03-28 → 2026-06-28 · 2 obs

● 2026-03-28 08:49:14
● 2026-06-28 05:01:12

●MXmx.sysctl.io2026-03-28 → 2026-06-28 · 2 obs

● 2026-03-28 08:49:14
● 2026-06-28 05:01:12

●A139.177.179.602026-03-28 → 2026-06-28 · 2 obs

● 2026-03-28 08:49:14
● 2026-06-28 05:01:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io	-
sysctl.io	jo.ns.cloudflare.com, justin.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.172

NS records: jo.ns.cloudflare.com, justin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysctl.io (unsigned zone)

⏱️ Timing

Total: 337ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.177.179.60`
NS	2	`jo.ns.cloudflare.com, justin.ns.cloudflare.com`
MX	1	`mx.sysctl.io (pri: 10)`
TXT	1	`v=spf1 a mx ip4:10.100.1.4 ~all`
SOA	1	`jo.ns.cloudflare.com dns.cloudflare.com`

Analysis

Hierarchy

sysctl.io has four subdomains: mx.sysctl.io, osaka.sysctl.io, relay.sysctl.io and frankfurt.sysctl.io.

IP Addresses

sysctl.io resolves to just one IP address, 139.177.179.60.

Further host names like 139-177-179-60.ip.linodeusercontent.com and frankfurt.sysctl.io overlap in IP numbers with sysctl.io.

Name Servers

sysctl.io uses two name servers for its delegation: jo.ns.cloudflare.com and justin.ns.cloudflare.com.

sysctl.io shares its NS records with other domains, for example guttercleaningstanmore.co.uk, casalgourmet.com.br, casinoroobet.fr and two others.

There is at least partial name server overlap between sysctl.io and other domains — hd-cg.com, industrlasemr.com, qyjd5588.com and two more among them.

These name servers are routinely deployed together with the name servers mark.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname jo.ns.cloudflare.com directs to 108.162.192.172, 172.64.32.172 and 173.245.58.172 along with 3 other IP addresses.

Hostname justin.ns.cloudflare.com directs to 108.162.193.187, 172.64.33.187 and 173.245.59.187 along with 3 other IP addresses.

Mail Servers

The sole mail server for sysctl.io is mx.sysctl.io.