sysfive.com - dns.ninja

`sysfive.com`

DNSSEC	⚠️ Not signed
A	5.135.243.204^{🇫🇷 OVH5.135.0.0/16}
		PTR	`www2.dealrobot.de`
NS	`a.ns.sysfive.com` ⭐
NS	`a.ns.rootnexus.net`
		A	18.192.188.80^{🇩🇪 Amazon18.192.0.0/15 EC2 FRA prefix}
			PTR	`ec2-18-192-188-80.eu-central-1.compute.amazonaws.com`
NS	`b.ns.rootnexus.net`
		A	87.253.170.2^{🇩🇪 WORK-AS87.253.160.0/20 n@work Internet Informationssysteme GmbH}
NS	`c.ns.rootnexus.net`
		A	87.253.170.193^{🇩🇪 WORK-AS87.253.160.0/20 n@work Internet Informationssysteme GmbH}
			PTR	`c.ns.rootnexus.net`
MX	`b.mx.rootnexus.net` ⭐
		A	87.253.170.5^{🇩🇪 WORK-AS87.253.160.0/20 n@work Internet Informationssysteme GmbH}
MX	`a.mx.rootnexus.net`⁽²⁰⁾
		A	18.192.188.80^{🇩🇪 Amazon18.192.0.0/15 EC2 FRA prefix}
			PTR	`ec2-18-192-188-80.eu-central-1.compute.amazonaws.com`
TXT	`v=spf1 mx:rootnexus.net ip4:87.253.170.5 ip4:87.253.170.25 include:buchhaltun...`
SOA	`a.ns.sysfive.com`hostmaster@sysfive.com 2025-10-24 #1

`com`

	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=1783857047

Subdomains

www.sysfive.com

Same first word

sysfive.com

sysfive.net

sysfive.de

Similar names

fivesys.com.br

fivesys.hu

DNS History

16 records (7 active, 9 former)

○NSa.ns.bsws.de2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●NSa.ns.rootnexus.net2015-05-23 → 2026-07-12 · 3 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2026-07-12 12:01:40

●NSa.ns.sysfive.com2026-05-21 → 2026-07-12 · 3 obs

○ 2015-05-23 12:46:44
● 2026-05-21 17:23:40
● 2026-07-12 12:01:40

○NSb.ns.bsws.de2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●NSb.ns.rootnexus.net2015-05-23 → 2026-07-12 · 3 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2026-07-12 12:01:40

○NSc.ns.bsws.de2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●NSc.ns.rootnexus.net2015-05-23 → 2026-07-12 · 3 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2026-07-12 12:01:40

○MXa.mx.bsws.de2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●MXa.mx.rootnexus.net2015-05-23 → 2026-07-12 · 3 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2026-07-12 12:01:40

○MXb.mx.bsws.de2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●MXb.mx.rootnexus.net2015-05-23 → 2026-07-12 · 3 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2026-07-12 12:01:40

○MXmail.sysfive.net2007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

●A5.135.243.2042026-05-21 → 2026-07-12 · 3 obs

○ 2018-01-14 02:40:56
● 2026-05-21 17:23:40
● 2026-07-12 12:01:40

○A81.209.183.682007-10-31 → 2007-10-31 · 3 obs

● 2007-10-31 10:28:20
○ 2015-05-23 12:46:44
○ 2026-07-12 12:01:40

○A87.253.170.592018-01-14 → 2018-01-14 · 4 obs

○ 2016-12-23 20:58:34
● 2018-01-14 02:40:56
○ 2026-05-21 17:23:40
○ 2026-07-12 12:01:40

○A87.253.170.62015-05-23 → 2016-12-23 · 5 obs

○ 2007-10-31 10:28:20
● 2015-05-23 12:46:44
● 2016-12-23 20:58:34
○ 2018-01-14 02:40:56
○ 2026-07-12 12:01:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sysfive.com	a.ns.rootnexus.net, b.ns.rootnexus.net, c.ns.rootnexus.net	-

✅ Authoritative Response

Server:18.192.188.80

NS records: a.ns.rootnexus.net, b.ns.rootnexus.net, c.ns.rootnexus.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysfive.com (unsigned zone)

⏱️ Timing

Total: 574ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.135.243.204`
NS	3	`a.ns.rootnexus.net, c.ns.rootnexus.net...`
MX	2	`a.mx.rootnexus.net (pri: 20), b.mx.rootnexus.net (pri: 10)`
TXT	1	`v=spf1 mx:rootnexus.net ip4:87.253.170.5`
SOA	1	`a.ns.sysfive.com hostmaster.sysfive.com`

Analysis

Hierarchy

The domain www.sysfive.com falls under the parent sysfive.com.

IP Addresses

sysfive.com directs to one IP number, which is 5.135.243.204.

Among the host names that share IP numbers with sysfive.com are sysfive.de, www2.dealrobot.de, www.sysfive.com and two others.

Name Servers

The domain sysfive.com is delegated to these four name servers: a.ns.sysfive.com, a.ns.rootnexus.net, b.ns.rootnexus.net and c.ns.rootnexus.net.

At least some of sysfive.com's name servers are shared with other domains, for example rootnexus.com, sysfive.net, ham1.rootnexus.net and two more.

These name servers tend to co-occur with a.ns.rootnexus.com, a.ns.sysfive.net, a.ns.ham1.rootnexus.net and 3 other name servers in the same DNS delegations.

a.ns.rootnexus.net has IP address 18.192.188.80, b.ns.rootnexus.net has IP address 87.253.170.2 and c.ns.rootnexus.net has IP address 87.253.170.193 — one address each.

Mail Servers

The MX records for sysfive.com point to two mail servers: a.mx.rootnexus.net and b.mx.rootnexus.net.

sysfive.com has the same mail server arrangement as a number of other domains, for example rootnexus.net, sysfive.de, rootnexus.de and two more.

sysfive.com overlaps on mail servers with certain other domains, rootnexus.com among them.

Each of a.mx.rootnexus.net and b.mx.rootnexus.net has one IP address: a.mx.rootnexus.net uses 18.192.188.80 and b.mx.rootnexus.net uses 87.253.170.5.