`wt.research.gov`

DNSSEC	⚠️ Not signed
A	2620:10f:6002:221::189^{🇺🇸 AS1022620:10f:6000::/40}
		PTR	`wt.research.gov`
A	128.150.221.189^{🇺🇸 AS102128.150.0.0/16}

`research.gov`

	DNSSEC	⚠️ Not signed
	A	2620:10f:6002:221::182^{🇺🇸 AS1022620:10f:6000::/40}
	A	2620:10f:6002:221::194^{🇺🇸 AS1022620:10f:6000::/40}
	A	128.150.221.182^{🇺🇸 AS102128.150.0.0/16}
	NS	`p-dns-i-gridmstr01.nsf.gov` ⭐
	NS	`ns1.nsf.gov`
	NS	`ns2.nsf.gov`
	NS	`ns3.nsf.gov`
	TXT	`amazonses:iY4fEnmHSlgj09jmkrejABs72S115CP3uyTzVO/fwSg=`
	TXT	`have-i-been-pwned-verification=dweb_30vdk8zk802y8zg53uyv6w16`
	TXT	`dtm-domain-verification=lIJEX4CzLmGhPiP47weQaGGm7H_F4uX3ZqVxvR0u7So`
	TXT	`_4r9ztpwjwffxacmc1fgcldrreyo7wtl`
	TXT	`_i4bzm2045sn6a6nwgbcz524ycry2smn`
	TXT	`_h7fmbib13ekjvffbdsrrlzwohyj94rs`
	TXT	`v=spf1 ip4:128.150.5.20/26 ~all`
	TXT	`google-site-verification=lTevoojpnZjTLX68UMMqCDqnbrycAy-9VgeX6v0OyFg`
	SOA	`p-dns-i-gridmstr01.nsf.gov`postmaster@nsf.gov serial=81610

WOT: SAFE (90/100)
rank #227554 globally
rank #1002 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #222,147

PTR for

189.221.150.128.in-addr.arpa

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DNS History

4 records (2 active, 2 former)

●A128.150.221.1892026-03-22 → 2026-04-24 · 3 obs

○ 2016-12-31 23:38:04
● 2026-03-22 09:53:04
● 2026-04-24 04:00:42

○A128.150.225.422016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 23:38:04
○ 2026-03-22 09:53:04
○ 2026-04-24 04:00:42

●A2620:10f:6002:221::1892026-03-22 → 2026-04-24 · 3 obs

○ 2016-12-31 23:38:04
● 2026-03-22 09:53:04
● 2026-04-24 04:00:42

○A2620:10f:6003:7::502016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 23:38:04
○ 2026-03-22 09:53:04
○ 2026-04-24 04:00:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
gov	a.ns.gov, b.ns.gov, c.ns.gov, d.ns.gov	-
research.gov	ns1.nsf.gov, ns2.nsf.gov, ns3.nsf.gov	6 records

✅ Authoritative Response

Server:128.150.2.55

NS records: ns1.nsf.gov, ns2.nsf.gov, ns3.nsf.gov

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 146ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`128.150.221.189`
AAAA	1	`2620:10f:6002:221::189`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.nsf.gov, ns1.nsf.gov, ns2.nsf.gov...)

Analysis

IP Addresses

wt.research.gov points to two IP numbers: 2620:10f:6002:221::189 and 128.150.221.189.

wt.research.gov - robtex.com

wt.research.gov

research.gov