`operationhighmaintenance.com`

DNSSEC	⚠️ Not signed
NS	`a4.nstld.com` ⚠️ Not in zone NS records
		A	2600:180a:1001::1^{🇺🇸 Tiggee2600:180a:1001::/48 Constellix anycast network}
			PTR	`ns11.constellix.com`
		A	96.45.80.1^{🇺🇸 Tiggee96.45.80.0/24 route 96.45.80.0/24}
			PTR	`ns11.constellix.com`
NS	`f4.nstld.com` ⚠️ Not in zone NS records
		A	2600:180b:2001::1^{🇺🇸 Tiggee2600:180b:2001::/48 Constellix anycast network}
			PTR	`ns21.constellix.com`
		A	46.31.236.1^{🇺🇸 Tiggee46.31.236.0/24 route 46.31.236.0/24}
			PTR	`ns21.constellix.com`
NS	`g4.nstld.com` ⚠️ Not in zone NS records
		A	2600:180c:3001::1^{🇺🇸 Tiggee2600:180c:3001::/48 Constellix anycast network}
			PTR	`ns31.constellix.com`
		A	43.247.170.1^{🇯🇵 Tiggee43.247.170.0/24 route 43.247.170.0/24}
			PTR	`ns31.constellix.com`
NS	`l4.nstld.com` ⚠️ Not in zone NS records
		A	2600:180a:1001::1^{🇺🇸 Tiggee2600:180a:1001::/48 Constellix anycast network}
			PTR	`ns11.constellix.com`
		A	96.45.80.1^{🇺🇸 Tiggee96.45.80.0/24 route 96.45.80.0/24}
			PTR	`ns11.constellix.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=1785466502

Same first word

operationhighmaintenance.com

DNS History

5 records (4 active, 1 former)

●NSa4.nstld.com2015-06-01 → 2026-07-31 · 2 obs

● 2015-06-01 20:36:50
● 2026-07-31 03:22:54

●NSf4.nstld.com2015-06-01 → 2026-07-31 · 2 obs

● 2015-06-01 20:36:50
● 2026-07-31 03:22:54

●NSg4.nstld.com2015-06-01 → 2026-07-31 · 2 obs

● 2015-06-01 20:36:50
● 2026-07-31 03:22:54

●NSl4.nstld.com2015-06-01 → 2026-07-31 · 2 obs

● 2015-06-01 20:36:50
● 2026-07-31 03:22:54

○A216.154.228.1682015-06-01 → 2017-02-04 · 4 obs

● 2015-06-01 20:36:50
● 2017-02-04 12:46:24
○ 2026-07-26 14:19:54
○ 2026-07-31 03:22:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, j.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
operationhighmaintenance.com	l4.nstld.com, a4.nstld.com, f4.nstld.com, g4.nstld.com	8 records

✅ Authoritative Response

Server:43.247.170.1

NS records: l4.nstld.com, a4.nstld.com, f4.nstld.com, g4.nstld.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for operationhighmaintenance.com (unsigned zone)

⏱️ Timing

Total: 115ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (l4.nstld.com, l4.nstld.com, a4.nstld.com...)

Analysis

Name Servers

The domain operationhighmaintenance.com is delegated to these four name servers: a4.nstld.com, f4.nstld.com, g4.nstld.com and l4.nstld.com.

There is at least partial name server overlap between operationhighmaintenance.com and other domains — savenorbit.com, manulifebank.biz, rapidssl.sg and two more among them.

These name servers regularly appear alongside j4.nstld.com, h4.nstld.com, k4.nstld.com and 5 other name servers in NS record sets.

Two of the four hostnames share an address pair: a4.nstld.com and l4.nstld.com both resolve to 96.45.80.1 and 2600:180a:1001::1. The remaining hosts resolve to distinct addresses: f4.nstld.com resolves to 46.31.236.1 and 2600:180b:2001::1, and g4.nstld.com resolves to 43.247.170.1 and 2600:180c:3001::1.

a4.nstld.com and l4.nstld.com are host names that each point to 2600:180a:1001::1 IP addresses.

a4.nstld.com and l4.nstld.com are host names that each point to 96.45.80.1 IP addresses.

operationhighmaintenance.com - robtex.com