upper.school - dns.ninja
upper.school
school
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.nic.school ⭐ | ||||||
| NS | v0n1.nic.school | ||||||
| NS | v0n2.nic.school | ||||||
| NS | v0n3.nic.school | ||||||
| NS | v2n0.nic.school | ||||||
| NS | v2n1.nic.school | ||||||
| SOA | v0n0.nic.schoolhostmaster@donuts.email serial=1786691837 | ||||||
PTR for
Subdomains
Same first word
Similar names
DNS History
18 records (10 active, 8 former)
○NSns-fr.1and1-dns.biz2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
○NSns-fr.1and1-dns.com2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
○NSns-fr.1and1-dns.fr2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
○NSns-fr.1and1-dns.org2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
●NSns1-37.azure-dns.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●NSns2-37.azure-dns.net2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●NSns3-37.azure-dns.org2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●NSns4-37.azure-dns.info2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●MXalt1.aspmx.l.google.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●MXalt2.aspmx.l.google.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●MXalt3.aspmx.l.google.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●MXalt4.aspmx.l.google.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
●MXaspmx.l.google.com2026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
○MXmx00.1and1.fr2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
○MXmx01.1and1.fr2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
●A176.223.114.602026-02-19 → 2026-08-14 · 3 obs
● 2026-02-19 17:03:48
● 2026-08-14 07:31:44
○A2001:8d8:1001:52d9:c483:9819:1466:782b2016-12-10 → 2016-12-10 · 3 obs
○ 2018-06-28 10:07:18
○ 2026-08-14 07:31:44
○A212.227.247.1262016-12-10 → 2016-12-10 · 3 obs
○ 2026-02-19 17:03:48
○ 2026-08-14 07:31:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| school | v0n0.nic.school, v0n1.nic.school, v2n0.nic.school, v0n3.nic.school... | 12 records |
| upper.school | ns4-37.azure-dns.info, ns2-37.azure-dns.net, ns1-37.azure-dns.com, ns3-37.azure-dns.org | - |
✅ Authoritative Response
Server:13.107.222.37
NS records: ns4-37.azure-dns.info, ns2-37.azure-dns.net, ns1-37.azure-dns.com, ns3-37.azure-dns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for upper.school (unsigned zone)
⏱️ Timing
Total: 1854ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 176.223.114.60 |
| NS | 4 | ns1-37.azure-dns.com, ns2-37.azure-dns.net... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)... |
| TXT | 5 | v=spf1 ip4:20.224.131.226 ip4:176.223.11, google-site-verification=tDRwu8Vj18QYC1l... |
| SOA | 1 | ns1-37.azure-dns.com azuredns-hostmaster |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.school, v0n1.nic.school, v0n2.nic.school...)
Analysis
Hierarchy
app.upper.school and www.upper.school are both subdomains of upper.school.
IP Addresses
upper.school resolves to one IP address: 176.223.114.60.
Among the host names that share IP numbers with upper.school is www.upper.school, as one example.
Name Servers
The authoritative name servers for upper.school are ns1-37.azure-dns.com, ns4-37.azure-dns.info, ns2-37.azure-dns.net and ns3-37.azure-dns.org.
upper.school partially shares its NS delegation with several other domains, including klinikcrm.com, homecomfortusa.com, xbrl-pro.net and two others.
ns1-37.azure-dns.com, ns4-37.azure-dns.info, ns2-37.azure-dns.net and ns3-37.azure-dns.org each carry two IP addresses. ns1-37.azure-dns.com has 150.171.10.37 and 2603:1061:0:10::25; ns4-37.azure-dns.info has 13.107.206.37 and 2620:1ec:bda:10::25; ns2-37.azure-dns.net has 150.171.16.37 and 2620:1ec:8ec:10::25; ns3-37.azure-dns.org has 13.107.222.37 and 2a01:111:4000:10::25.
Mail Servers
upper.school is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
upper.school has at least partial mail server overlap with other domains such as ns500841.ns500841.ns500821.ns500794.ns500841.ns500794.ns500794.ns500795.ns500794.ns500821.ns500821.ns500821.ns500790.ns500795.lustypartnersfinder.com, emtech.com, thakorlalhiralal.com and two more.
These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.
Hostnames that resolve to two IP addresses:
The A records for aspmx.l.google.com return 142.251.167.26 and 2607:f8b0:4004:c25::1b.
The A records for alt1.aspmx.l.google.com return 192.178.234.27 and 2800:3f0:4003:c14::1b.
The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.
The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1a.
The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1a.