`sistemaelearning.com`

DNSSEC	⚠️ Not signed
A	81.88.53.160^{🇮🇹 REGISTER-AS81.88.53.0/24 Register.IT S.p.A. prefix}
		PTR	`lhcp3410.webapps.net`
NS	`dns1.plaindns.net` ⭐
		A	2a01:8100:2911::2:184:4^{🇮🇹 REGISTER-AS2a01:8100:2000::/36}
		A	81.88.61.4^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`host-81-88-61-4.dedicatedservers.it`
NS	`dns2.plaindns.net`
		A	81.88.63.52^{🇮🇹 REGISTER-AS81.88.63.0/24 Register.IT S.p.A. prefix}
			PTR	`host-81-88-63-52.dedicatedservers.it`
MX	`mail-pt.securemail.pro` ⭐
		A	81.88.48.101^{🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix}
			PTR	`massenet.register.it`
TXT	`v=spf1 include:spf.webapps.net ~all`
SOA	`dns1.plaindns.net`root@amen.fr 2024-10-03 #6

`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=1771291435

Same first word

sistemaelearning.com

DNS History

8 records (4 active, 4 former)

○NScns55.hostgator.com2017-03-25 → 2017-03-25 · 3 obs

● 2017-03-25 08:10:58
○ 2026-02-15 02:29:38
○ 2026-03-23 22:01:22

○NScns56.hostgator.com2017-03-25 → 2017-03-25 · 3 obs

● 2017-03-25 08:10:58
○ 2026-02-15 02:29:38
○ 2026-03-23 22:01:22

●NSdns1.plaindns.net2026-02-15 → 2026-03-23 · 3 obs

○ 2017-03-25 08:10:58
● 2026-02-15 02:29:38
● 2026-03-23 22:01:22

●NSdns2.plaindns.net2026-02-15 → 2026-03-23 · 3 obs

○ 2017-03-25 08:10:58
● 2026-02-15 02:29:38
● 2026-03-23 22:01:22

●MXmail-pt.securemail.pro2026-02-15 → 2026-03-23 · 3 obs

○ 2017-03-25 08:10:58
● 2026-02-15 02:29:38
● 2026-03-23 22:01:22

○MXmail.sistemaelearning.com2017-03-25 → 2017-03-25 · 3 obs

● 2017-03-25 08:10:58
○ 2026-02-15 02:29:38
○ 2026-03-23 22:01:22

○A108.167.165.1962017-03-25 → 2017-03-25 · 3 obs

● 2017-03-25 08:10:58
○ 2026-02-15 02:29:38
○ 2026-03-23 22:01:22

●A81.88.53.1602026-02-15 → 2026-03-23 · 3 obs

○ 2017-03-25 08:10:58
● 2026-02-15 02:29:38
● 2026-03-23 22:01:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
sistemaelearning.com	dns1.plaindns.net, dns2.plaindns.net	-

✅ Authoritative Response

Server:81.88.63.52

NS records: dns1.plaindns.net, dns2.plaindns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sistemaelearning.com (unsigned zone)

⏱️ Timing

Total: 845ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.88.53.160`
NS	2	`dns2.plaindns.net, dns1.plaindns.net`
MX	1	`mail-pt.securemail.pro (pri: 10)`
TXT	1	`v=spf1 include:spf.webapps.net ~all`
SOA	1	`dns1.plaindns.net root.amen.fr`

Analysis

IP Addresses

sistemaelearning.com points to a single IP address: 81.88.53.160.

Other host names such as fepons.org, cai.org.pt, digik.pt, host-81-88-53-160.dedicatedservers.it and bactraining.com share IP numbers with sistemaelearning.com.

Name Servers

sistemaelearning.com is delegated to two name servers: dns1.plaindns.net and dns2.plaindns.net.

sistemaelearning.com uses the same name server setup as other domains, including ajclima.com, chateau-pichon-bellevue.com, repairfuture.net, imanislamihsan.com and codesprt.com.

Host names with two IP numbers: dns1.plaindns.net points to 2a01:8100:2911::2:184:4 and 81.88.61.4.

Host names with one IP number: dns2.plaindns.net points to 81.88.63.52.

Mail Servers

The mail server for sistemaelearning.com is mail-pt.securemail.pro.

sistemaelearning.com uses the same mail server setup as other domains, for instance mubcargo.com, geopress.org, ideiapack.com, rodolfopalma.pt and soregi.pt.

sistemaelearning.com shares at least some mail servers with other domains, for example newinfra.pt, mastergest-angola.com, jotecnialarmes.pt, valovar.com and ideal-torrense.pt.

these mail servers are frequently used alongside the mail servers mail.amen.pt.

Host mail-pt.securemail.pro points to IP 81.88.48.101.

sistemaelearning.com - robtex.com