opensource-classes.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`opensource-classes.com`

DNSSEC	⚠️ Not signed
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`ns-cloud-a1.googledomains.com` ⭐
		A	2001:4860:4802:32::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a1.googledomains.com`
		A	216.239.32.106^{🇺🇸 Google216.239.32.0/24}
NS	`ns-cloud-a2.googledomains.com`
		A	2001:4860:4802:34::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a2.googledomains.com`
		A	216.239.34.106^{🇺🇸 Google216.239.34.0/24}
NS	`ns-cloud-a3.googledomains.com`
		A	2001:4860:4802:36::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a3.googledomains.com`
		A	216.239.36.106^{🇺🇸 Google216.239.36.0/24}
NS	`ns-cloud-a4.googledomains.com`
		A	2001:4860:4802:38::6a^{🇺🇸 Google2001:4860::/32}
			PTR	`ns-cloud-a4.googledomains.com`
		A	216.239.38.106^{🇺🇸 Google216.239.38.0/24}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.mail.qq.com ~all`
SOA	`ns-cloud-a1.googledomains.com`cloud-dns-hostmaster@google.com serial=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=1791598429

Same first word

opensource-classes.com

Previous names

Next names

DNS History

7 records (7 active, 0 former)

●NSns-cloud-a1.googledomains.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●NSns-cloud-a2.googledomains.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●NSns-cloud-a3.googledomains.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●NSns-cloud-a4.googledomains.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●MXmxbiz1.qq.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●MXmxbiz2.qq.com2026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

●A198.49.23.1452026-09-13 → 2026-10-10 · 2 obs

● 2026-09-13 07:06:32
● 2026-10-10 02:37:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
opensource-classes.com	ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com	8 records

✅ Authoritative Response

Server:216.239.38.106

NS records: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opensource-classes.com (unsigned zone)

⏱️ Timing

Total: 609ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`198.49.23.145`
NS	4	`ns-cloud-a3.googledomains.com, ns-cloud-a2.googledomains.com...`
MX	2	`mxbiz2.qq.com (pri: 10), mxbiz1.qq.com (pri: 5)`
TXT	1	`v=spf1 include:spf.mail.qq.com ~all`
SOA	1	`ns-cloud-a1.googledomains.com cloud-dns-`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-a1.googledomains.com, ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com...)

Analysis

IP Addresses

opensource-classes.com points to a single IP number: 198.49.23.145.

Additional host names — alwaysunday.com, cafeloni.com, cygnusriskcounsel.com and two others — share IP numbers with opensource-classes.com.

Name Servers

opensource-classes.com has four authoritative name servers: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com.

opensource-classes.com partially shares its NS delegation with several other domains, including specialparebrisefrance.com, onlyagtransferllc.com, ventespriveesjott.com and two others.

ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com each carry two IP addresses. ns-cloud-a1.googledomains.com has 216.239.32.106 and 2001:4860:4802:32::6a; ns-cloud-a2.googledomains.com has 216.239.34.106 and 2001:4860:4802:34::6a; ns-cloud-a3.googledomains.com has 216.239.36.106 and 2001:4860:4802:36::6a; ns-cloud-a4.googledomains.com has 216.239.38.106 and 2001:4860:4802:38::6a.

Mail Servers

opensource-classes.com has two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

opensource-classes.com shares the same mail server setup as other domains, including quirkystudio.top, ethertop.com, duomi.cn and two others.

The MX records for opensource-classes.com are at least partially shared with other domains, such as wanlingyun.com, bambooflute.cn, dkjz.cn and truzem.com.