onclass.tech - robtex.com
onclass.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:1d91🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:9563🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.29.145Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.149.99🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | melinda.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3ac6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0c6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20c6🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| A | 108.162.192.198🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| A | 172.64.32.198🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| A | 173.245.58.198🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melinda.ns.cloudflare.com | ||||||
| NS | noel.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bd8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1d8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21d8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 108.162.193.216🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 172.64.33.216🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 173.245.59.216🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| TXT | _globalsign-domain-verification=vpvdKLtd5HMSXoWVquFl9Asi2pIV7i7HY_PJJmK9Ko | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.29.145, 172.67.149.99 | ||||||
| IPv6 | 2606:4700:3034::6815:1d91, 2606:4700:3034::ac43:9563 | ||||||
| SOA | melinda.ns.cloudflare.comdns@cloudflare.com serial=2397947337 | ||||||
tech
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | ns01.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1615336 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSmelinda.ns.cloudflare.com2026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
●NSnoel.ns.cloudflare.com2026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
●A104.21.29.1452026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
●A172.67.149.992026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
●A2606:4700:3034::6815:1d912026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
●A2606:4700:3034::ac43:95632026-02-22 → 2026-03-03 · 2 obs
● 2026-03-03 17:16:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | 8 records |
| onclass.tech | noel.ns.cloudflare.com, melinda.ns.cloudflare.com | - |
✅ Authoritative Response
Server: 172.64.32.198
NS records: noel.ns.cloudflare.com, melinda.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for onclass.tech (unsigned zone)
⏱️ Timing
Total: 1673ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.149.99, 104.21.29.145 |
| AAAA | 2 | 2606:4700:3034::6815:1d91, 2606:4700:3034::ac43:9563 |
| NS | 2 | melinda.ns.cloudflare.com, noel.ns.cloudflare.com |
| TXT | 1 | _globalsign-domain-verification=vpvdKLtd |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | melinda.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org...)
Analysis
IP Addresses
onclass.tech maps to four IP numbers: 2606:4700:3034::6815:1d91, 2606:4700:3034::ac43:9563, 104.21.29.145 and 172.67.149.99.
Other host names, for instance www.serambigayo.com, ki-wi.de, coloradohorse.com, mobitechapps.com and padwerk.nl share IP numbers with onclass.tech.
Name Servers
Two name servers melinda.ns.cloudflare.com and noel.ns.cloudflare.com are delegated to onclass.tech.
onclass.tech uses the same name server configuration as other domains, such as awbtextiles.co.uk, xrsuk.com, gsector.net, autogyaan.com and feinsmithllc.com.
onclass.tech at least partially shares name servers with other domains such as sneaker-daily.com, mindat.io, santacroce.com.br, wassertemperatur.com and yellowtunnel1.com.
These name servers are commonly used alongside susan.ns.cloudflare.com, ingrid.ns.cloudflare.com and jaxson.ns.cloudflare.com.
Host names with six IP numbers: Host name melinda.ns.cloudflare.com points to 2606:4700:50::adf5:3ac6, 2803:f800:50::6ca2:c0c6, 2a06:98c1:50::ac40:20c6, 108.162.192.198, 172.64.32.198 and 173.245.58.198; host name noel.ns.cloudflare.com points to 2606:4700:58::adf5:3bd8, 2803:f800:50::6ca2:c1d8, 2a06:98c1:50::ac40:21d8, 108.162.193.216, 172.64.33.216 and 173.245.59.216.