`checkapi.poly.edu`

DNSSEC	⚠️ Not signed
A	128.238.63.97^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
		PTR	`checkapi.poly.edu`
		PTR	`cse-cappos.poly.edu`
		PTR	`netcheck.poly.edu`
		PTR	`uppir.poly.edu`
		PTR	`vsn.poly.edu`

`poly.edu`

	DNSSEC	⚠️ Not signed
	A	35.172.89.115^{🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix}
	A	128.238.1.62^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
	A	128.238.1.63^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
	A	128.238.1.68^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
	A	128.238.1.69^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
	A	128.238.111.62^{🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU}
	NS	`dns-vm-01.poly.edu` ⭐ ⚠️ Not in parent delegation
	NS	`gatekeeper.poly.edu`
	NS	`ns1.poly.edu`
	NS	`ns2.poly.edu`
	NS	`photon.poly.edu`
	NS	`poly-ad-vm-01.poly.edu` ⚠️ Not in parent delegation
	NS	`poly-ad-vm-02.poly.edu` ⚠️ Not in parent delegation
	NS	`poly-addr-vm-01.poly.edu` ⚠️ Not in parent delegation
	NS	`wins-vm-01.poly.edu` ⚠️ Not in parent delegation
	MX	`d285629a.ess.barracudanetworks.com` ⭐
	MX	`d285629b.ess.barracudanetworks.com`⁽¹⁵⁾
	MX	`poly-edu.mail.protection.outlook.com`⁽²⁰⁾
	TXT	`apple-domain-verification=PKlpMMYuXje4V8l2`
	TXT	`v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.c...`
	SOA	`dns-vm-01.poly.edu`poly@edu serial=18957667

WOT: SAFE (93/100)
rank #34138 globally
rank #711 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #40,922

PTR for

97.63.238.128.in-addr.arpa

Same first word

checkapi.com

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DNS History

1 record (1 active, 0 former)

●A128.238.63.972026-03-22 → 2026-03-23 · 2 obs

● 2026-03-22 17:17:38
● 2026-03-23 14:09:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
edu	a.edu-servers.net, b.edu-servers.net, c.edu-servers.net, d.edu-servers.net...	-
poly.edu	photon.poly.edu, gatekeeper.poly.edu, ns1.poly.edu, ns2.poly.edu	4 records

✅ Authoritative Response

Server:128.238.32.22

NS records: photon.poly.edu, gatekeeper.poly.edu, ns1.poly.edu, ns2.poly.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for poly.edu (unsigned zone)

⏱️ Timing

Total: 260ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`128.238.63.97`

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (photon.poly.edu, gatekeeper.poly.edu, ns1.poly.edu...)

Analysis

IP Addresses

checkapi.poly.edu points to a single IP number: 128.238.63.97.

Other host names, for instance uppir.poly.edu, vsn.poly.edu, cse-cappos.poly.edu and netcheck.poly.edu share IP numbers with checkapi.poly.edu.

checkapi.poly.edu - robtex.com