physicclassroom.com - dns.ninja

`physicclassroom.com`

DNSSEC	⚠️ Not signed
A	212.32.254.36^{🇳🇱 LEASEWEB-NL-AMS-01212.32.224.0/19}
NS	`ns1.smtmdns.com` ⭐
		A	172.98.192.42^{🇺🇸 DACENTEC-1172.98.192.0/21 ARIN Allocation 6/17/2015}
NS	`ns2.smtmdns.com`
		A	95.211.134.248^{🇳🇱 LEASEWEB-NL-AMS-0195.211.0.0/16 LEASEWEB}
SOA	`ns1.smtmdns.com`admin@physicclassroom.com 2026-06-09 #4

`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=1783655777

Same first word

physicclassroom.com

Similar names

physicsclasroom.com

phyicsclassroom.com

DNS History

17 records (3 active, 14 former)

○NSns1.above.com2015-08-22 → 2016-05-14 · 4 obs

● 2015-08-22 03:11:18
● 2016-05-14 16:20:48
○ 2017-02-07 06:53:52
○ 2026-07-10 04:02:02

○NSns1.dnsnuts.com2017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-14 16:20:48
● 2017-02-07 06:53:52
○ 2020-01-04 14:48:36
○ 2026-07-10 04:02:02

●NSns1.smtmdns.com2020-01-04 → 2026-07-10 · 3 obs

○ 2017-02-07 06:53:52
● 2020-01-04 14:48:36
● 2026-07-10 04:02:02

○NSns2.above.com2015-08-22 → 2016-05-14 · 4 obs

● 2015-08-22 03:11:18
● 2016-05-14 16:20:48
○ 2017-02-07 06:53:52
○ 2026-07-10 04:02:02

○NSns2.dnsnuts.com2017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-14 16:20:48
● 2017-02-07 06:53:52
○ 2020-01-04 14:48:36
○ 2026-07-10 04:02:02

●NSns2.smtmdns.com2020-01-04 → 2026-07-10 · 3 obs

○ 2017-02-07 06:53:52
● 2020-01-04 14:48:36
● 2026-07-10 04:02:02

○MXmail.post-host.net2015-08-22 → 2016-05-14 · 4 obs

● 2015-08-22 03:11:18
● 2016-05-14 16:20:48
○ 2017-02-07 06:53:52
○ 2026-07-10 04:02:02

○A103.224.182.2452015-08-22 → 2016-05-14 · 4 obs

● 2015-08-22 03:11:18
● 2016-05-14 16:20:48
○ 2017-02-07 06:53:52
○ 2026-07-10 04:02:02

○A167.114.156.2142017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-14 16:20:48
● 2017-02-07 06:53:52
○ 2020-01-04 14:48:36
○ 2026-07-10 04:02:02

○A172.98.192.432026-04-05 → 2026-04-05 · 4 obs

○ 2026-03-30 21:20:08
● 2026-04-05 22:38:10
○ 2026-04-08 14:14:52
○ 2026-07-10 04:02:02

○A172.98.192.442026-02-20 → 2026-02-20 · 4 obs

○ 2026-02-17 01:06:46
● 2026-02-20 16:29:58
○ 2026-03-30 14:39:54
○ 2026-07-10 04:02:02

○A172.98.192.462026-04-09 → 2026-04-09 · 4 obs

○ 2026-04-08 14:14:52
● 2026-04-09 06:29:36
○ 2026-04-22 03:43:32
○ 2026-07-10 04:02:02

●A212.32.254.362026-07-10 → 2026-07-10 · 2 obs

○ 2026-04-22 03:43:32
● 2026-07-10 04:02:02

○A212.32.254.562026-03-30 → 2026-03-30 · 4 obs

○ 2026-02-20 16:29:58
● 2026-03-30 14:39:54
○ 2026-03-30 21:20:08
○ 2026-07-10 04:02:02

○A212.32.254.592026-02-17 → 2026-04-08 · 7 obs

○ 2020-01-04 14:48:36
● 2026-02-17 01:06:46
○ 2026-02-20 16:29:58
○ 2026-04-05 22:38:10
● 2026-04-08 14:14:52
○ 2026-04-09 06:29:36
○ 2026-07-10 04:02:02

○A5.39.99.502017-02-07 → 2017-02-07 · 4 obs

○ 2016-05-14 16:20:48
● 2017-02-07 06:53:52
○ 2026-02-17 01:06:46
○ 2026-07-10 04:02:02

○A95.211.189.1522020-01-04 → 2020-01-04 · 4 obs

○ 2017-02-07 06:53:52
● 2020-01-04 14:48:36
○ 2026-02-17 01:06:46
○ 2026-07-10 04:02:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net...	-
physicclassroom.com	ns1.smtmdns.com, ns2.smtmdns.com	2 records

✅ Authoritative Response

Server:172.98.192.42

NS records: ns1.smtmdns.com, ns2.smtmdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for physicclassroom.com (unsigned zone)

⏱️ Timing

Total: 329ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`212.32.254.36`
NS	2	`ns1.smtmdns.com, ns2.smtmdns.com`
SOA	1	`ns1.smtmdns.com admin.physicclassroom.co`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.smtmdns.com, ns2.smtmdns.com)

Analysis

IP Addresses

physicclassroom.com directs to one IP number, which is 212.32.254.36.

Among the host names that share IP numbers with physicclassroom.com are haveb.nl, uklr.net, s102-tracking.blamads.com and two others.

Name Servers

physicclassroom.com is delegated to two name servers: ns1.smtmdns.com and ns2.smtmdns.com.

physicclassroom.com has the same name server delegation as a number of other domains, such as abez.com, clibex.com, cliniclows.nl and two more.

Both ns1.smtmdns.com and ns2.smtmdns.com have a single IP address each — ns1.smtmdns.com resolves to 172.98.192.42 while ns2.smtmdns.com resolves to 95.211.134.248.