`harcourtachieveadmin.com`

DNSSEC	⚠️ Not signed
NS	`ns5.hmco.com` ⚠️ Not in zone NS records
		A	54.164.83.4^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-83-4.compute-1.amazonaws.com`
NS	`ns6.hmco.com` ⚠️ Not in zone NS records
		A	52.70.15.210^{🇺🇸 Amazon52.70.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-70-15-210.compute-1.amazonaws.com`
NS	`ns7.hmco.com` ⚠️ Not in zone NS records
		A	52.36.38.144^{🇺🇸 Amazon52.36.0.0/14 EC2 PDX prefix}
			PTR	`ec2-52-36-38-144.us-west-2.compute.amazonaws.com`

`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

harcourtachieveadmin.com

3 records (3 active, 0 former)

●NSns5.hmco.com2026-02-17 → 2026-03-22 · 2 obs

● 2026-02-17 23:25:58
● 2026-03-22 23:33:30

●NSns6.hmco.com2026-02-17 → 2026-03-22 · 2 obs

● 2026-02-17 23:25:58
● 2026-03-22 23:33:30

●NSns7.hmco.com2026-02-17 → 2026-03-22 · 2 obs

● 2026-02-17 23:25:58
● 2026-03-22 23:33:30

harcourtachieveadmin.com is delegated to three name servers: ns5.hmco.com, ns6.hmco.com and ns7.hmco.com.

At least part of the name servers for harcourtachieveadmin.com are shared with other domains, for instance classroom.com, hmhschoolonline.org, hmhcustomsolutions.com, writerules.org and connectionsfyi.com.

Host names with a single IP: