a2sys.co - dns.ninja

`a2sys.co`

DNSSEC	⚠️ Not signed
A	139.99.122.116^{🇸🇬 OVH139.99.0.0/17 Hosting route}
		PTR	`server.a2sys.co`
NS	`mark.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c182^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mark.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2182^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mark.ns.cloudflare.com`
		A	108.162.193.130^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	172.64.33.130^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
		A	173.245.59.130^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mark.ns.cloudflare.com`
NS	`nina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a88^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c088^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2088^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nina.ns.cloudflare.com`
		A	108.162.192.136^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	172.64.32.136^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
		A	173.245.58.136^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nina.ns.cloudflare.com`
MX	`a2sys.co` ⭐
		A	139.99.122.116^{🇸🇬 OVH139.99.0.0/17 Hosting route}
			PTR	`server.a2sys.co`
TXT	`v=spf1 +a +mx +ip4:139.99.122.116 ~all`
SOA	`mark.ns.cloudflare.com`dns@cloudflare.com serial=2409791130

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759720978

MX for

a2sys.co

Subdomains

ns3.a2sys.co

ns11.a2sys.co

server.a2sys.co

ns4.a2sys.co

ns6.a2sys.co

sarbs.a2sys.co

ns10.a2sys.co

ns5.a2sys.co

Same first word

a2sys.co.kr

a2sys.com

a2sys.co

a2sys.fr

Similar names

2asys.de

DNS History

7 records (4 active, 3 former)

●NSmark.ns.cloudflare.com2026-05-07 → 2026-07-31 · 3 obs

○ 2026-04-18 13:05:18
● 2026-05-07 20:12:56
● 2026-07-31 07:42:54

●NSnina.ns.cloudflare.com2026-05-07 → 2026-07-31 · 3 obs

○ 2026-04-18 13:05:18
● 2026-05-07 20:12:56
● 2026-07-31 07:42:54

○NSns3.a2sys.co2026-02-15 → 2026-04-18 · 4 obs

● 2026-02-15 17:50:30
● 2026-04-18 13:05:18
○ 2026-05-07 20:12:56
○ 2026-07-31 07:42:54

○NSns4.a2sys.co2026-02-15 → 2026-04-18 · 4 obs

● 2026-02-15 17:50:30
● 2026-04-18 13:05:18
○ 2026-05-07 20:12:56
○ 2026-07-31 07:42:54

●MXa2sys.co2026-02-15 → 2026-07-31 · 2 obs

● 2026-02-15 17:50:30
● 2026-07-31 07:42:54

●A139.99.122.1162026-05-07 → 2026-07-31 · 3 obs

○ 2026-04-18 13:05:18
● 2026-05-07 20:12:56
● 2026-07-31 07:42:54

○A188.40.167.682026-02-15 → 2026-04-18 · 4 obs

● 2026-02-15 17:50:30
● 2026-04-18 13:05:18
○ 2026-05-07 20:12:56
○ 2026-07-31 07:42:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co	-
a2sys.co	mark.ns.cloudflare.com, nina.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.130

NS records: mark.ns.cloudflare.com, nina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for a2sys.co (unsigned zone)

⏱️ Timing

Total: 323ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.99.122.116`
NS	2	`mark.ns.cloudflare.com, nina.ns.cloudflare.com`
MX	1	`a2sys.co (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:139.99.122.116 ~all`
SOA	1	`mark.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

a2sys.co is the parent domain of ns3.a2sys.co, ns11.a2sys.co, server.a2sys.co, ns4.a2sys.co, ns6.a2sys.co and a few other host names.

Mail Server Role

a2sys.co serves as a mail server for a2sys.co.

IP Addresses

a2sys.co has exactly one IP address — 139.99.122.116.

ues970.rol.famatech.com, ues916.rol.famatech.com, ns3.a2sys.co plus two other host names have IP numbers in common with a2sys.co.

Name Servers

a2sys.co uses two name servers for its delegation: mark.ns.cloudflare.com and nina.ns.cloudflare.com.

The name server configuration of a2sys.co is shared with other domains, for instance sportlet.es, abq.support, sunflysolutions.com and two others.

a2sys.co shares at least some of its name servers with other domains, including varietync.org, bojinfo.se, all-for-pack.com and two others.

These name servers are frequently paired with the name servers princess.ns.cloudflare.com and leah.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname mark.ns.cloudflare.com directs to 108.162.193.130, 172.64.33.130 and 173.245.59.130 along with 3 other IP addresses.

Hostname nina.ns.cloudflare.com directs to 108.162.192.136, 172.64.32.136 and 173.245.58.136 along with 3 other IP addresses.

Mail Servers

a2sys.co uses exactly one mail server, which is a2sys.co.

a2sys.co directs to just one IP number, 139.99.122.116.