`openclasses.info`

DNSSEC	⚠️ Not signed
A	38.239.31.124^{🇺🇸 HDHK38.239.16.0/20}
NS	`ns1.dnsowl.com` ⭐
		A	2400:cb00:2049:1::a29f:1a88^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1bad^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.136^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-26-136.defastlink.net`
		A	162.159.27.173^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-173.defastlink.net`
NS	`ns2.dnsowl.com`
		A	2400:cb00:2049:1::a29f:1a31^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1b82^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.49^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-26-49.defastlink.net`
		A	162.159.27.130^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-130.defastlink.net`
NS	`ns3.dnsowl.com`
		A	2400:cb00:2049:1::a29f:1aea^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1b62^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.234^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-26-234.defastlink.net`
		A	162.159.27.98^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-98.defastlink.net`
SOA	`ns1.dnsowl.com`hostmaster@dnsowl.com serial=1766778482

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1771291020

Subdomains

www.openclasses.info

Same first word

openclasses.info

openclasses.cn

openclasses.org

Similar names

lessonspace.org

DNS History

9 records (4 active, 5 former)

○NSf1g1ns1.dnspod.net2015-07-19 → 2020-01-02 · 4 obs

● 2015-07-19 23:22:54
● 2020-01-02 20:47:42
○ 2026-02-27 05:15:16
○ 2026-03-01 11:00:36

○NSf1g1ns2.dnspod.net2015-07-19 → 2020-01-02 · 4 obs

● 2015-07-19 23:22:54
● 2020-01-02 20:47:42
○ 2026-02-27 05:15:16
○ 2026-03-01 11:00:36

●NSns1.dnsowl.com2026-02-27 → 2026-03-01 · 3 obs

○ 2020-01-02 20:47:42
● 2026-02-27 05:15:16
● 2026-03-01 11:00:36

●NSns2.dnsowl.com2026-02-27 → 2026-03-01 · 3 obs

○ 2020-01-02 20:47:42
● 2026-02-27 05:15:16
● 2026-03-01 11:00:36

●NSns3.dnsowl.com2026-02-27 → 2026-03-01 · 3 obs

○ 2020-01-02 20:47:42
● 2026-02-27 05:15:16
● 2026-03-01 11:00:36

○A36.51.255.1362015-07-19 → 2017-02-11 · 4 obs

● 2015-07-19 23:22:54
● 2017-02-11 04:46:48
○ 2020-01-02 20:47:42
○ 2026-03-01 11:00:36

●A38.239.31.1242026-02-27 → 2026-03-01 · 3 obs

○ 2020-01-02 20:47:42
● 2026-02-27 05:15:16
● 2026-03-01 11:00:36

○A47.88.33.1932020-01-02 → 2020-01-02 · 4 obs

○ 2017-02-11 04:46:48
● 2020-01-02 20:47:42
○ 2026-02-27 05:15:16
○ 2026-03-01 11:00:36

○CNAMEjp.cname.cloudbbs.org2015-07-19 → 2017-02-11 · 4 obs

● 2015-07-19 23:22:54
● 2017-02-11 04:46:48
○ 2020-01-02 20:47:42
○ 2026-03-01 11:00:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a2.info.afilias-nst.info, a0.info.afilias-nst.info, c0.info.afilias-nst.info	-
openclasses.info	ns3.dnsowl.com, ns2.dnsowl.com, ns1.dnsowl.com	-

✅ Authoritative Response

Server: 162.159.26.136

NS records: ns3.dnsowl.com, ns2.dnsowl.com, ns1.dnsowl.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openclasses.info (unsigned zone)

⏱️ Timing

Total: 388ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.239.31.124`
NS	3	`ns1.dnsowl.com, ns2.dnsowl.com...`
SOA	1	`ns1.dnsowl.com hostmaster.dnsowl.com`

Analysis

Hierarchy

openclasses.info is the parent of www.openclasses.info.

IP Addresses

openclasses.info resolves to a single IP: 38.239.31.124.

Other host names share IP numbers with openclasses.info; for instance www.openclasses.info.

Name Servers

openclasses.info delegates to three name servers: ns1.dnsowl.com, ns2.dnsowl.com and ns3.dnsowl.com.

openclasses.info shares some name servers with other domains, for example eeeee02.com, missbelarusuniverse.com, mipath.com, trytoread.com and gassyfarts.com.

Host names with four IP numbers: ns1.dnsowl.com points to: 2400:cb00:2049:1::a29f:1a88, 2400:cb00:2049:1::a29f:1bad, 162.159.26.136 and 162.159.27.173; ns2.dnsowl.com points to: 2400:cb00:2049:1::a29f:1a31, 2400:cb00:2049:1::a29f:1b82, 162.159.26.49 and 162.159.27.130; ns3.dnsowl.com points to: 2400:cb00:2049:1::a29f:1aea, 2400:cb00:2049:1::a29f:1b62, 162.159.26.234 and 162.159.27.98.

openclasses.info - robtex.com