sys-dev.cat - dns.ninja

`sys-dev.cat`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::ac43:a667^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1032^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.16.50^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.166.103^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dorthy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
MX	`dde6021c.21.ik2.com` ⭐
		A	38.246.57.230^{🇺🇸 AS39558438.246.56.0/23 Route Registered for Cogent Communications Customer - Data Management Associates of Brevard Inc (d/b/a ColoBarn)}
			PTR	`s602e.ik2.com`
		A	64.38.239.83^{🇺🇸 AS2045464.38.224.0/20 Proxy route}
			PTR	`s480d.ik2.com`
		A	162.213.157.172^{🇨🇦 ASTUTEHOSTING162.213.156.0/23 Astute Hosting Incorporated}
		A	207.81.189.178^{🇨🇦 ASN-TELUS207.81.0.0/16 NETBLK-SHOWNET6-BLK1}
			PTR	`s250a.ik2.com`
MX	`dde6021c.22.ik2.io`⁽²⁰⁾
		A	38.246.57.226^{🇺🇸 AS39558438.246.56.0/23 Route Registered for Cogent Communications Customer - Data Management Associates of Brevard Inc (d/b/a ColoBarn)}
			PTR	`s602a.ik2.io`
		A	64.38.239.82^{🇺🇸 AS2045464.38.224.0/20 Proxy route}
			PTR	`s480c.ik2.io`
TXT	`v=spf1 include:dn(0x736578)it.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.16.50, 172.67.166.103
		IPv6 hints	2606:4700:3036::ac43:a667, 2606:4700:3037::6815:1032
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=255, name=cloudflare-ech.com
SOA	`dorthy.ns.cloudflare.com`dns@cloudflare.com serial=2407631884

`cat`

	DNSSEC	🔒 Signed (DS record present)
	NS	`anyc1.irondns.net` ⭐
	NS	`cat.ns.nic.es`
	NS	`cat.pch.net`
	NS	`nsc.nic.de`
	NS	`switch.nic.cat`
	SOA	`anyc1.irondns.net`dnsmaster@corenic.org serial=2606231931

Subdomains

dyn2.sys-dev.cat

Same first word

sys-dev.cat

sys-dev.de

sys-dev.com

Similar names

dev-sys.ru

edv-sys.com

dev-sys.com

dev-sys.co.uk

DNS History

16 records (8 active, 8 former)

●NSdorthy.ns.cloudflare.com2018-05-10 → 2026-06-23 · 2 obs

● 2018-05-10 02:13:14
● 2026-06-23 20:06:40

●NSmarek.ns.cloudflare.com2018-05-10 → 2026-06-23 · 2 obs

● 2018-05-10 02:13:14
● 2026-06-23 20:06:40

●MXdde6021c.21.ik2.com2018-05-10 → 2026-06-23 · 2 obs

● 2018-05-10 02:13:14
● 2026-06-23 20:06:40

●MXdde6021c.22.ik2.io2018-05-10 → 2026-06-23 · 2 obs

● 2018-05-10 02:13:14
● 2026-06-23 20:06:40

●A104.21.16.502026-06-23 → 2026-06-23 · 2 obs

○ 2018-05-10 02:13:14
● 2026-06-23 20:06:40

○A104.31.66.2242018-05-10 → 2018-05-10 · 2 obs

● 2018-05-10 02:13:14
○ 2026-06-23 20:06:40

○A104.31.67.2242018-05-10 → 2018-05-10 · 2 obs

● 2018-05-10 02:13:14
○ 2026-06-23 20:06:40

●A172.67.166.1032026-06-23 → 2026-06-23 · 2 obs

○ 2018-05-10 02:13:14
● 2026-06-23 20:06:40

○A188.114.96.02026-06-23 → 2026-06-23 · 1 obs

○ 2026-06-23 20:06:40

○A188.114.97.02026-06-23 → 2026-06-23 · 1 obs

○ 2026-06-23 20:06:40

○A2400:cb00:2048:1::681f:42e02018-05-10 → 2018-05-10 · 2 obs

● 2018-05-10 02:13:14
○ 2026-06-23 20:06:40

○A2400:cb00:2048:1::681f:43e02018-05-10 → 2018-05-10 · 2 obs

● 2018-05-10 02:13:14
○ 2026-06-23 20:06:40

●A2606:4700:3036::ac43:a6672026-06-23 → 2026-06-23 · 2 obs

○ 2018-05-10 02:13:14
● 2026-06-23 20:06:40

●A2606:4700:3037::6815:10322026-06-23 → 2026-06-23 · 2 obs

○ 2018-05-10 02:13:14
● 2026-06-23 20:06:40

○A2a06:98c1:3120::2026-06-23 → 2026-06-23 · 1 obs

○ 2026-06-23 20:06:40

○A2a06:98c1:3121::2026-06-23 → 2026-06-23 · 1 obs

○ 2026-06-23 20:06:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cat	cat.ns.nic.es, cat.pch.net, nsc.nic.de, anyc1.irondns.net...	10 records
sys-dev.cat	dorthy.ns.cloudflare.com, marek.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.202

NS records: dorthy.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sys-dev.cat (unsigned zone)

⏱️ Timing

Total: 1074ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.166.103, 104.21.16.50`
AAAA	2	`2606:4700:3036::ac43:a667, 2606:4700:3037::6815:1032`
NS	2	`dorthy.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	2	`dde6021c.21.ik2.com (pri: 10), dde6021c.22.ik2.io (pri: 20)`
TXT	1	`v=spf1 include:dn(0x736578)it.com -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dorthy.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 10

In-bailiwick: 2 (switch.nic.cat, switch.nic.cat)

Out-of-bailiwick: 8 (anyc1.irondns.net, nsc.nic.de, cat.pch.net...)

Analysis

Hierarchy

dyn2.sys-dev.cat is a subdomain of sys-dev.cat.

IP Addresses

sys-dev.cat points to the four IP addresses 104.21.16.50, 172.67.166.103, 2606:4700:3036::ac43:a667 and 2606:4700:3037::6815:1032.

upd-ebay.info, dronesportscanada.com, suit.hu plus two other host names have IP numbers in common with sys-dev.cat.

Name Servers

The NS records for sys-dev.cat delegate to dorthy.ns.cloudflare.com and marek.ns.cloudflare.com.

The name server configuration of sys-dev.cat is shared with other domains, for instance futurarc.com, joker8-casino-fr.com, myelitevapor.com and two others.

The name servers of sys-dev.cat overlap at least partially with those of other domains — among them dhlecommerce.be, analytics4life.com, grosch.co.za and two more.

These name servers commonly co-occur with the name servers rayden.ns.cloudflare.com, abdullah.ns.cloudflare.com, anna.ns.cloudflare.com and amir.ns.cloudflare.com.

Hosts with 6 IP addresses each:

dorthy.ns.cloudflare.com maps to 108.162.192.249, 172.64.32.249, 173.245.58.249 and 3 additional IP addresses.

marek.ns.cloudflare.com maps to 108.162.193.202, 172.64.33.202, 173.245.59.202 and 3 additional IP addresses.

Mail Servers

sys-dev.cat uses two mail servers, dde6021c.21.ik2.com and dde6021c.22.ik2.io.

Host names with four IP addresses:

dde6021c.21.ik2.com resolves to 38.246.57.230, 64.38.239.83, 162.213.157.172 and 207.81.189.178.

Host names pointing to two IP addresses:

The A records for dde6021c.22.ik2.io return 38.246.57.226 and 64.38.239.82.