`checkteachers.com`

DNSSEC	⚠️ Not signed
A	38.48.201.173^{🇺🇸 AS39882338.48.192.0/18}
NS	`a.share-dns.com` ⭐
		A	172.64.53.25^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-53-25.defastlink.net`
NS	`b.share-dns.net`
		A	172.64.52.239^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-52-239.defastlink.net`
SOA	`a.share-dns.com`master@share-dns.com serial=1762700670

`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=1771291435

Same first word

checkteachers.com

DNS History

8 records (3 active, 5 former)

●NSa.share-dns.com2026-03-23 → 2026-03-23 · 2 obs

○ 2017-07-08 03:32:18
● 2026-03-23 07:07:02

●NSb.share-dns.net2026-03-23 → 2026-03-23 · 2 obs

○ 2017-07-08 03:32:18
● 2026-03-23 07:07:02

○NSns.checkteachers.com2016-12-15 → 2017-07-08 · 3 obs

● 2016-12-15 14:03:54
● 2017-07-08 03:32:18
○ 2026-03-23 07:07:02

○NSns1.md-plesk-web2.webhostbox.net2016-12-15 → 2017-07-08 · 3 obs

● 2016-12-15 14:03:54
● 2017-07-08 03:32:18
○ 2026-03-23 07:07:02

○NSns2.md-plesk-web2.webhostbox.net2016-12-15 → 2017-07-08 · 3 obs

● 2016-12-15 14:03:54
● 2017-07-08 03:32:18
○ 2026-03-23 07:07:02

○MXmail.checkteachers.com2016-12-15 → 2017-07-08 · 3 obs

● 2016-12-15 14:03:54
● 2017-07-08 03:32:18
○ 2026-03-23 07:07:02

○A208.91.199.72016-12-15 → 2017-07-08 · 3 obs

● 2016-12-15 14:03:54
● 2017-07-08 03:32:18
○ 2026-03-23 07:07:02

●A38.48.201.1732026-03-23 → 2026-03-23 · 2 obs

○ 2017-07-08 03:32:18
● 2026-03-23 07:07:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net...	-
checkteachers.com	a.share-dns.com, b.share-dns.net	1 record

✅ Authoritative Response

Server:172.64.52.239

NS records: a.share-dns.com, b.share-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for checkteachers.com (unsigned zone)

⏱️ Timing

Total: 204ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.48.201.173`
NS	2	`a.share-dns.com, b.share-dns.net`
SOA	1	`a.share-dns.com master.share-dns.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (a.share-dns.com)

Analysis

IP Addresses

checkteachers.com points to a single IP: 38.48.201.173.

Other host names, for instance bet-ncaa-football.com, share IP numbers with checkteachers.com.

Name Servers

checkteachers.com's delegation is to two name servers a.share-dns.com and b.share-dns.net.

checkteachers.com shares the same name server configuration as other domains, such as party-uncle.com, 52voa.com, hbcsfh.com, fxxhs.com and chinapaeony.com.

checkteachers.com at least partially shares its name servers with other domains, for instance baiduja.com, jsweibo.com, 80090.xyz, gem-inno.com and kitaif.com.

These name servers are commonly used with a4.share-dns.com, b4.share-dns.net, a10.share-dns.com, b10.share-dns.net, a1.share-dns.com, b1.share-dns.net, a9.share-dns.com, b9.share-dns.net, a5.share-dns.com and b5.share-dns.net.

Host names with a single IP:

a.share-dns.com resolves to 172.64.53.25.

b.share-dns.net resolves to 172.64.52.239.

checkteachers.com - robtex.com