🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`computerlecturenotes.com`

DNSSEC

⚠️ Not signed

`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=1788702213

Previous names

Next names

DNS History

4 records (0 active, 4 former)

○NSns1.computerlecturenotes.com2020-03-06 → 2020-03-06 · 3 obs

● 2020-03-06 00:50:38
○ 2026-09-03 04:13:52
○ 2026-09-06 13:59:26

○NSns2.computerlecturenotes.com2020-03-06 → 2020-03-06 · 3 obs

● 2020-03-06 00:50:38
○ 2026-09-03 04:13:52
○ 2026-09-06 13:59:26

○MXmail.computerlecturenotes.com2020-03-06 → 2020-03-06 · 3 obs

● 2020-03-06 00:50:38
○ 2026-09-03 04:13:52
○ 2026-09-06 13:59:26

○A139.59.21.1542020-03-06 → 2020-03-06 · 3 obs

● 2020-03-06 00:50:38
○ 2026-09-03 04:13:52
○ 2026-09-06 13:59:26

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:192.5.6.30

NS records: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 225ms | Queries: -

📄 Records

Type	Count	Sample Data

computerlecturenotes.com - robtex.com