poly.edu - dns.ninja

poly.edu

DNSSEC⚠️ Not signed
A35.172.89.115🇺🇸 Amazon35.168.0.0/13 EC2 IAD prefix
PTRec2-35-172-89-115.compute-1.amazonaws.com
A128.238.1.62🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
A128.238.1.63🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
A128.238.1.68🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
A128.238.1.69🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
A128.238.111.62🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSdns-vm-01.poly.edu ⭐ ⚠️ Not in parent delegation
A128.238.1.68🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
PTRdns-vm-01.poly.edu
NSgatekeeper.poly.edu ⚠️ Not in parent delegation
A128.238.2.38🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSns1.nyu.net ⚠️ Not in zone NS records
A2607:f600:1001:6100::8🇺🇸 NYU2607:f600::/32 New York University route6 object
PTRns1.nyu.net
A128.122.0.8🇺🇸 NYU128.122.0.0/16 New York University
PTRns1.nyu.net
NSns1.poly.edu ⚠️ Not in parent delegation
A128.238.2.38🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSns2.nyu.org ⚠️ Not in zone NS records
A2607:f600:1001:6000::76🇺🇸 NYU2607:f600::/32 New York University route6 object
PTRns2.nyu.org
A128.122.0.76🇺🇸 NYU128.122.0.0/16 New York University
PTRns2.nyu.org
NSns2.poly.edu ⚠️ Not in parent delegation
A128.238.32.22🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSns4.nyu.edu ⚠️ Not in zone NS records
A3.226.48.68🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix
PTRec2-3-226-48-68.compute-1.amazonaws.com
NSphoton.poly.edu ⚠️ Not in parent delegation
A128.238.32.22🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSpoly-ad-vm-01.poly.edu ⚠️ Not in parent delegation
A128.238.1.62🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
PTRpoly-ad-vm-01.poly.edu
NSpoly-ad-vm-02.poly.edu ⚠️ Not in parent delegation
A128.238.1.63🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
PTRpoly-ad-vm-02.poly.edu
NSpoly-addr-vm-01.poly.edu ⚠️ Not in parent delegation
A128.238.111.62🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
NSwins-vm-01.poly.edu ⚠️ Not in parent delegation
A128.238.1.69🇺🇸 AS54965128.238.0.0/16 Polytechnic Institute of NYU
PTRwins-vm-01.poly.edu
MXd285629a.ess.barracudanetworks.com
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
MXd285629b.ess.barracudanetworks.com(15)
A209.222.82.252🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.253🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
A209.222.82.255🇺🇸 Amazon209.222.82.0/24 EC2 Prefix
PTRmail.ess.barracuda.com
MXpoly-edu.mail.protection.outlook.com(20)
A2a01:111:f403:c903::3🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-mw2pr02cu00503.inbound.protection.outlook.com
A2a01:111:f403:c946::1🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch1pr04cu00101.inbound.protection.outlook.com
A2a01:111:f403:f905::3🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-dm5pr02cu00203.inbound.protection.outlook.com
A2a01:111:f403:f913::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-cy1pr03cu00100.inbound.protection.outlook.com
A52.101.8.42🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dm6pr03cu00402.inbound.protection.outlook.com
A52.101.9.5🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mn2pr04cu00205.inbound.protection.outlook.com
A52.101.40.24🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-cy5pr05cu00100.inbound.protection.outlook.com
A52.101.41.183🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-byapr04cu00307.inbound.protection.outlook.com
TXTC41CA3C6993B7B10FA47B05C51DABEB5
TXTFC1C7A1F8EC1F88AA19C684786126688
TXT3601093087071A41093ECB77EE24BB14
TXTapple-domain-verification=PKlpMMYuXje4V8l2
TXTv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.c...
SOAdns-vm-01.poly.edupoly@edu serial=19159606

edu

rank #34539 globally
rank #703 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #62,743

Subdomains

Same first word

Similar names

DNS History

38 records (21 active, 17 former)

20162017201820192020202120222023202420252026NSdns-vm-01.poly.edugatekeeper.poly.eduns1.nyu.netns1.poly.eduns2.nyu.orgns2.poly.eduns4.nyu.eduphoton.poly.edupoly-ad-vm-01.poly.edupoly-ad-vm-02.poly.edupoly-addr-vm-01.poly.eduwins-vm-01.poly.edu128.122.0.11128.122.0.71128.122.0.76128.122.0.8128.122.8.13MXd285629a.ess.barracudanetworks.comd285629b.ess.barracudanetworks.compoly-edu.mail.protection.outlook.combarracuda.poly.eduduke-is-ded.poly.eduduke.poly.edumail.poly.edupoly-edu.mail.eo.outlook.comA128.238.1.62128.238.1.63128.238.1.68128.238.1.69128.238.111.6235.172.89.115128.238.1.213128.238.111.502002:80ee:13e::80ee:13e2002:80ee:13f::80ee:13f2002:80ee:144::80ee:1442002:80ee:6f32::80ee:6f3254.209.255.182
NS128.122.0.112026-04-14 → 2026-04-14 · 5 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
○ 2026-08-14 17:04:18
NS128.122.0.712026-04-14 → 2026-04-14 · 5 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
○ 2026-08-14 17:04:18
NS128.122.0.762026-04-14 → 2026-04-14 · 5 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
○ 2026-08-14 17:04:18
NS128.122.0.82026-04-14 → 2026-04-14 · 5 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
○ 2026-08-14 17:04:18
NS128.122.8.132026-04-14 → 2026-04-14 · 5 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
○ 2026-08-14 17:04:18
NSdns-vm-01.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSgatekeeper.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSns1.nyu.net2026-04-14 → 2026-08-14 · 6 obs
○ 2018-07-18 18:09:42
● 2026-04-14 07:00:32
● 2026-04-14 12:35:46
○ 2026-04-15 02:39:58
● 2026-07-07 16:23:48
● 2026-08-14 17:04:18
NSns1.poly.edu2018-07-18 → 2026-08-14 · 3 obs
○ 2015-09-04 03:56:46
● 2018-07-18 18:09:42
● 2026-08-14 17:04:18
NSns2.nyu.org2026-07-07 → 2026-08-14 · 3 obs
○ 2026-04-15 02:39:58
● 2026-07-07 16:23:48
● 2026-08-14 17:04:18
NSns2.poly.edu2018-07-18 → 2026-08-14 · 3 obs
○ 2015-09-04 03:56:46
● 2018-07-18 18:09:42
● 2026-08-14 17:04:18
NSns4.nyu.edu2026-07-07 → 2026-08-14 · 3 obs
○ 2026-04-15 02:39:58
● 2026-07-07 16:23:48
● 2026-08-14 17:04:18
NSphoton.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSpoly-ad-vm-01.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSpoly-ad-vm-02.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSpoly-addr-vm-01.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
NSwins-vm-01.poly.edu2015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
MXbarracuda.poly.edu2015-09-04 → 2022-01-30 · 4 obs
● 2015-09-04 03:56:46
● 2022-01-30 15:46:40
○ 2026-02-14 17:43:14
○ 2026-08-14 17:04:18
MXd285629a.ess.barracudanetworks.com2026-02-14 → 2026-08-14 · 3 obs
○ 2022-01-30 15:46:40
● 2026-02-14 17:43:14
● 2026-08-14 17:04:18
MXd285629b.ess.barracudanetworks.com2026-02-14 → 2026-08-14 · 3 obs
○ 2022-01-30 15:46:40
● 2026-02-14 17:43:14
● 2026-08-14 17:04:18
MXduke-is-ded.poly.edu2019-10-27 → 2022-01-30 · 5 obs
○ 2016-02-09 16:04:50
● 2019-10-27 19:42:44
● 2022-01-30 15:46:40
○ 2026-02-14 17:43:14
○ 2026-08-14 17:04:18
MXduke.poly.edu2015-09-04 → 2022-01-30 · 4 obs
● 2015-09-04 03:56:46
● 2022-01-30 15:46:40
○ 2026-02-14 17:43:14
○ 2026-08-14 17:04:18
MXmail.poly.edu2015-09-04 → 2016-02-07 · 4 obs
● 2015-09-04 03:56:46
● 2016-02-07 17:59:38
○ 2016-02-09 16:04:50
○ 2026-08-14 17:04:18
MXpoly-edu.mail.eo.outlook.com2015-09-04 → 2022-01-30 · 4 obs
● 2015-09-04 03:56:46
● 2022-01-30 15:46:40
○ 2026-02-14 17:43:14
○ 2026-08-14 17:04:18
MXpoly-edu.mail.protection.outlook.com2026-02-14 → 2026-08-14 · 3 obs
○ 2022-01-30 15:46:40
● 2026-02-14 17:43:14
● 2026-08-14 17:04:18
A128.238.1.2132017-07-01 → 2017-09-20 · 5 obs
○ 2017-06-14 18:46:50
● 2017-07-01 22:58:32
● 2017-09-20 02:10:40
○ 2018-07-18 18:09:42
○ 2026-08-14 17:04:18
A128.238.1.622015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
A128.238.1.632015-09-04 → 2026-08-14 · 6 obs
● 2015-09-04 03:56:46
● 2017-06-14 18:46:50
○ 2017-07-01 22:58:32
○ 2017-09-20 02:10:40
● 2018-07-18 18:09:42
● 2026-08-14 17:04:18
A128.238.1.682015-09-04 → 2026-08-14 · 2 obs
● 2015-09-04 03:56:46
● 2026-08-14 17:04:18
A128.238.1.692026-02-14 → 2026-08-14 · 3 obs
○ 2022-01-30 15:46:40
● 2026-02-14 17:43:14
● 2026-08-14 17:04:18
A128.238.111.502015-09-04 → 2017-06-14 · 4 obs
● 2015-09-04 03:56:46
● 2017-06-14 18:46:50
○ 2017-07-01 22:58:32
○ 2026-08-14 17:04:18
A128.238.111.622017-07-01 → 2026-08-14 · 3 obs
○ 2017-06-14 18:46:50
● 2017-07-01 22:58:32
● 2026-08-14 17:04:18
A2002:80ee:13e::80ee:13e2015-09-04 → 2017-06-14 · 4 obs
● 2015-09-04 03:56:46
● 2017-06-14 18:46:50
○ 2017-07-01 22:58:32
○ 2026-08-14 17:04:18
A2002:80ee:13f::80ee:13f2015-09-04 → 2021-02-15 · 4 obs
● 2015-09-04 03:56:46
● 2021-02-15 22:58:14
○ 2021-09-28 05:29:40
○ 2026-08-14 17:04:18
A2002:80ee:144::80ee:1442015-09-04 → 2017-09-20 · 4 obs
● 2015-09-04 03:56:46
● 2017-09-20 02:10:40
○ 2018-07-18 18:09:42
○ 2026-08-14 17:04:18
A2002:80ee:6f32::80ee:6f322015-09-04 → 2017-06-14 · 4 obs
● 2015-09-04 03:56:46
● 2017-06-14 18:46:50
○ 2017-07-01 22:58:32
○ 2026-08-14 17:04:18
A35.172.89.1152026-02-14 → 2026-08-14 · 3 obs
○ 2022-01-30 15:46:40
● 2026-02-14 17:43:14
● 2026-08-14 17:04:18
A54.209.255.1822015-09-04 → 2022-01-30 · 4 obs
● 2015-09-04 03:56:46
● 2022-01-30 15:46:40
○ 2026-02-14 17:43:14
○ 2026-08-14 17:04:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
edud.edu-servers.net, b.edu-servers.net, f.edu-servers.net, h.edu-servers.net...-
poly.eduns1.nyu.net, ns2.nyu.org, ns4.nyu.edu1 record

✅ Authoritative Response

Server:128.122.0.8

NS records: ns1.nyu.net, ns2.nyu.org, ns4.nyu.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for poly.edu (unsigned zone)

⏱️ Timing

Total: 342ms | Queries: -

📄 Records

TypeCountSample Data
A6128.238.1.62, 128.238.1.68...
NS9dns-vm-01.poly.edu, poly-addr-vm-01.poly.edu...
MX3d285629a.ess.barracudanetworks.com (pri:, d285629b.ess.barracudanetworks.com (pri:...
TXT5v=spf1 include:spf.protection.outlook.co, C41CA3C6993B7B10FA47B05C51DABEB5...
SOA1dns-vm-01.poly.edu poly.edu

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns4.nyu.edu)

Analysis

Hierarchy

The host names mykonos.poly.edu, venky.poly.edu, kasos.poly.edu, hikari.poly.edu and catt3.poly.edu — along with several hundred others — are all subdomains of poly.edu.

IP Addresses

poly.edu points to 6 IP addresses, including 35.172.89.115, 128.238.1.62 and 128.238.1.63, plus 3 other.

dns-vm-01.poly.edu, ec2-35-172-89-115.compute-1.amazonaws.com, poly-ad-vm-02.poly.edu plus two other host names have IP numbers in common with poly.edu.

Name Servers

The DNS delegation for poly.edu covers 12 name servers: ns4.nyu.edu, dns-vm-01.poly.edu, gatekeeper.poly.edu and 9 more.

poly.edu has at least partial name server overlap with other domains, such as nyumobile.com, nyu.biz, 219.122.128.in-addr.arpa and two others.

ns1.nyu.net, ns2.nyu.org and ns1.poly.edu — plus 5 other name servers — are commonly paired with these name servers.

Host names pointing to two IP addresses:

ns1.nyu.net maps to two IP addresses — 128.122.0.8 and 2607:f600:1001:6100::8.

ns2.nyu.org maps to two IP addresses — 128.122.0.76 and 2607:f600:1001:6000::76.

Host names resolving to a single IP address:

ns4.nyu.edu points to the IP address 3.226.48.68.

dns-vm-01.poly.edu points to the IP address 128.238.1.68.

gatekeeper.poly.edu points to the IP address 128.238.2.38.

ns1.poly.edu points to the IP address 128.238.2.38.

ns2.poly.edu points to the IP address 128.238.32.22.

photon.poly.edu points to the IP address 128.238.32.22.

poly-ad-vm-01.poly.edu points to the IP address 128.238.1.62.

poly-ad-vm-02.poly.edu points to the IP address 128.238.1.63.

poly-addr-vm-01.poly.edu points to the IP address 128.238.111.62.

wins-vm-01.poly.edu points to the IP address 128.238.1.69.

These two host names — gatekeeper.poly.edu and ns1.poly.edu — each point to 128.238.2.38 IP addresses.

These two host names — ns2.poly.edu and photon.poly.edu — each point to 128.238.32.22 IP addresses.

Mail Servers

poly.edu has three mail servers: d285629a.ess.barracudanetworks.com, d285629b.ess.barracudanetworks.com and poly-edu.mail.protection.outlook.com.

At least some of the mail servers used by poly.edu are shared with other domains: ziggy.poly.edu, rama.poly.edu, alum.poly.edu and two others among them.

These mail servers tend to appear together with the mail servers mail.poly.edu, duke.poly.edu and duke-is-ded.poly.edu.

Hosts with 8 IP addresses each:

poly-edu.mail.protection.outlook.com carries IP addresses 52.101.8.42, 52.101.9.5 and 52.101.40.24, with 5 other addresses beyond those.

Host names carrying three IP numbers:

d285629a.ess.barracudanetworks.com resolves to three addresses: 209.222.82.252, 209.222.82.253 and 209.222.82.255.

d285629b.ess.barracudanetworks.com resolves to three addresses: 209.222.82.252, 209.222.82.253 and 209.222.82.255.

These two host names — d285629a.ess.barracudanetworks.com and d285629b.ess.barracudanetworks.com — each point to 209.222.82.252 IP addresses.

These two host names — d285629a.ess.barracudanetworks.com and d285629b.ess.barracudanetworks.com — each point to 209.222.82.253 IP addresses.

These two host names — d285629a.ess.barracudanetworks.com and d285629b.ess.barracudanetworks.com — each point to 209.222.82.255 IP addresses.