`classteachernotes.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1776227872

Subdomains

www.classteachernotes.com

Same first word

classteachernotes.com

DNS History

16 records (3 active, 13 former)

○NSa.share-dns.com2026-04-15 → 2026-04-15 · 1 obs

○ 2026-04-15 04:57:54

○NSa3.share-dns.com2026-04-15 → 2026-04-15 · 1 obs

○ 2026-04-15 04:57:54

○NSb.share-dns.net2026-04-15 → 2026-04-15 · 1 obs

○ 2026-04-15 04:57:54

○NSb3.share-dns.net2026-04-15 → 2026-04-15 · 1 obs

○ 2026-04-15 04:57:54

●NSexpire1.gname-dns.com2026-04-15 → 2026-04-15 · 2 obs

○ 2017-07-19 05:55:18
● 2026-04-15 04:57:54

●NSexpire2.gname-dns.com2026-04-15 → 2026-04-15 · 2 obs

○ 2017-07-19 05:55:18
● 2026-04-15 04:57:54

○NSns1.classteachernotes.com2015-12-27 → 2015-12-27 · 3 obs

● 2015-12-27 06:23:54
○ 2016-04-07 01:27:08
○ 2026-04-15 04:57:54

○NSns1.digitalocean.com2016-04-07 → 2017-07-19 · 4 obs

○ 2015-12-27 06:23:54
● 2016-04-07 01:27:08
● 2017-07-19 05:55:18
○ 2026-04-15 04:57:54

○NSns2.classteachernotes.com2015-12-27 → 2015-12-27 · 3 obs

● 2015-12-27 06:23:54
○ 2016-04-07 01:27:08
○ 2026-04-15 04:57:54

○NSns2.digitalocean.com2016-04-07 → 2017-07-19 · 4 obs

○ 2015-12-27 06:23:54
● 2016-04-07 01:27:08
● 2017-07-19 05:55:18
○ 2026-04-15 04:57:54

○NSns3.digitalocean.com2016-04-07 → 2017-07-19 · 4 obs

○ 2015-12-27 06:23:54
● 2016-04-07 01:27:08
● 2017-07-19 05:55:18
○ 2026-04-15 04:57:54

○MXclassteachernotes.com2015-12-27 → 2015-12-27 · 3 obs

● 2015-12-27 06:23:54
○ 2016-04-07 01:27:08
○ 2026-04-15 04:57:54

○A103.235.104.1462015-12-27 → 2015-12-27 · 3 obs

● 2015-12-27 06:23:54
○ 2016-04-07 01:27:08
○ 2026-04-15 04:57:54

○A128.199.78.2272016-04-07 → 2017-07-19 · 4 obs

○ 2015-12-27 06:23:54
● 2016-04-07 01:27:08
● 2017-07-19 05:55:18
○ 2026-04-15 04:57:54

●CNAMEexp.gs-cdn.com2026-04-15 → 2026-04-15 · 1 obs

● 2026-04-15 04:57:54

○CNAMEwww.classteachernotes.com2026-04-15 → 2026-04-15 · 1 obs

○ 2026-04-15 04:57:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classteachernotes.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classteachernotes.com (unsigned zone)

⏱️ Timing

Total: 496ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

Hierarchy

classteachernotes.com is the parent of www.classteachernotes.com.

IP Addresses

classteachernotes.com resolves to one IP number: 172.65.190.172.

Other host names, for instance 0syn.com, 5510000.cc and exp.gs-cdn.com share IP numbers with classteachernotes.com.

classteachernotes.com - robtex.com