schooldata.io - robtex.com
schooldata.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:df3🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:8584🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.13.243Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.133.132🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | clark.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b57🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c157🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2157🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| A | 108.162.193.87🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| A | 172.64.33.87🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| A | 173.245.59.87🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | clark.ns.cloudflare.com | ||||||
| NS | mina.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26fb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2fb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22fb🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| A | 108.162.194.251🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| A | 162.159.38.251Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| A | 172.64.34.251🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | mina.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.13.243, 172.67.133.132 | ||||||
| IPv6 hints | 2606:4700:3030::6815:df3, 2606:4700:3037::ac43:8584 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=235, name=cloudflare-ech.com | ||||||
| SOA | clark.ns.cloudflare.comdns@cloudflare.com serial=2410030546 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1786854955 | ||||||
Same first word
schooldata.us |
schooldata.uk |
schooldata.eu |
schooldata.io |
schooldata.solutions |
schooldata.net |
schooldata.com |
schooldata.org |
Similar names
dataschool.nl |
dataschool.digital |
dataschool.com.br |
dataschool.net |
dataschool.com |
dataschool.it |
dataschool.io |
dataschool.sg |
dataschool.org |
DNS History
10 records (6 active, 4 former)
●NSclark.ns.cloudflare.com2026-07-27 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
●NSmina.ns.cloudflare.com2026-07-27 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
●A104.21.13.2432026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
●A172.67.133.1322026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
○A188.114.96.02026-07-27 → 2026-07-27 · 2 obs
○ 2026-08-16 05:39:52
○A188.114.97.02026-07-27 → 2026-07-27 · 2 obs
○ 2026-08-16 05:39:52
●A2606:4700:3030::6815:df32026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
●A2606:4700:3037::ac43:85842026-08-16 → 2026-08-16 · 2 obs
● 2026-08-16 05:39:52
○A2a06:98c1:3120::2026-07-27 → 2026-07-27 · 2 obs
○ 2026-08-16 05:39:52
○A2a06:98c1:3121::2026-07-27 → 2026-07-27 · 2 obs
○ 2026-08-16 05:39:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| schooldata.io | clark.ns.cloudflare.com, mina.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.38.251
NS records: clark.ns.cloudflare.com, mina.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for schooldata.io (unsigned zone)
⏱️ Timing
Total: 386ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.133.132, 104.21.13.243 |
| AAAA | 2 | 2606:4700:3037::ac43:8584, 2606:4700:3030::6815:df3 |
| NS | 2 | clark.ns.cloudflare.com, mina.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | clark.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
schooldata.io points to the four IP addresses 104.21.13.243, 172.67.133.132, 2606:4700:3030::6815:df3 and 2606:4700:3037::ac43:8584.
Two other host names, along with kaskus800spektakuler.com, 98win8v.vip and www.0513xinxi.com, also share IP numbers with schooldata.io.
Name Servers
The NS records for schooldata.io delegate to clark.ns.cloudflare.com and mina.ns.cloudflare.com.
schooldata.io shares its NS records with other domains, for example w88dee.com, eltaquigrafo.com, bumn.info and two others.
The name servers of schooldata.io overlap at least partially with those of other domains — among them solarbettingexpress.com, deldunantul.com, adrexpress.net.br and two more.
The name servers keyla.ns.cloudflare.com, nancy.ns.cloudflare.com and carmelo.ns.cloudflare.com are commonly seen alongside these name servers.
DNS names with 6 IP addresses:
clark.ns.cloudflare.com maps to 108.162.193.87, 172.64.33.87, 173.245.59.87 and 3 additional IP addresses.
mina.ns.cloudflare.com maps to 108.162.194.251, 162.159.38.251, 172.64.34.251 and 3 additional IP addresses.