instructex.top - robtex.com
instructex.top
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:554c🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:cb86🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.85.76Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.203.134🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | aiden.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b37🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c137🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2137🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| A | 108.162.193.55🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| A | 172.64.33.55🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| A | 173.245.59.55🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | aiden.ns.cloudflare.com | ||||||
| NS | lina.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3abb🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0bb🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20bb🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| A | 108.162.192.187🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| A | 172.64.32.187🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| A | 173.245.58.187🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lina.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.85.76, 172.67.203.134 | ||||||
| IPv6 hints | 2606:4700:3030::6815:554c, 2606:4700:3035::ac43:cb86 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=151, name=cloudflare-ech.com | ||||||
| SOA | aiden.ns.cloudflare.comdns@cloudflare.com serial=2403383279 | ||||||
top
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.zdnscloud.com ⭐ | ||||||
| NS | a.zdnscloud.cn | ||||||
| NS | b.zdnscloud.cn | ||||||
| NS | c.zdnscloud.com | ||||||
| NS | d.zdnscloud.com | ||||||
| NS | e.zdnscloud.cn | ||||||
| NS | f.zdnscloud.cn | ||||||
| NS | i.zdnscloud.cn | ||||||
| NS | j.zdnscloud.com | ||||||
| TXT | 2026-05-11_11:35:01 | ||||||
| SOA | a.zdnscloud.comtd_dns_gtld@knet.cn serial=1395778468 | ||||||
Same first word
instructex.top |
DNS History
6 records (6 active, 0 former)
●NSaiden.ns.cloudflare.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
●NSlina.ns.cloudflare.com2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
●A104.21.85.762026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
●A172.67.203.1342026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
●A2606:4700:3030::6815:554c2026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
●A2606:4700:3035::ac43:cb862026-05-06 → 2026-05-11 · 2 obs
● 2026-05-11 03:43:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| top | e.zdnscloud.cn, c.zdnscloud.com, f.zdnscloud.cn, a.zdnscloud.cn... | - |
| instructex.top | lina.ns.cloudflare.com, aiden.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.187
NS records: lina.ns.cloudflare.com, aiden.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for instructex.top (unsigned zone)
⏱️ Timing
Total: 363ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.85.76, 172.67.203.134 |
| AAAA | 2 | 2606:4700:3030::6815:554c, 2606:4700:3035::ac43:cb86 |
| NS | 2 | aiden.ns.cloudflare.com, lina.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | aiden.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
instructex.top points to four IP numbers: 2606:4700:3030::6815:554c, 2606:4700:3035::ac43:cb86, 104.21.85.76 and 172.67.203.134.
Other host names, for instance 889992702.xyz, youdoodle.net, sol-polska.pl, cyveranthioro.com and authsystem.site share IP numbers with instructex.top.
Name Servers
instructex.top's delegation is to two name servers aiden.ns.cloudflare.com and lina.ns.cloudflare.com.
instructex.top shares the same name server configuration as other domains, such as dxex.org, changerbit.info, xarex.top, exchangerhot.com and internationaldigitalprogram.top.
instructex.top at least partially shares its name servers with other domains, for instance cinematecadebogota.gov.co, ptbrk.com, methylmalonicacidurianews.com, aa99914.com and atlasbase.ca.
These name servers are often used together with the name servers zoe.ns.cloudflare.com.
Host names with six IP numbers:
aiden.ns.cloudflare.com points to: 2606:4700:58::adf5:3b37, 2803:f800:50::6ca2:c137, 2a06:98c1:50::ac40:2137, 108.162.193.55, 172.64.33.55 and 173.245.59.55.
lina.ns.cloudflare.com points to: 2606:4700:50::adf5:3abb, 2803:f800:50::6ca2:c0bb, 2a06:98c1:50::ac40:20bb, 108.162.192.187, 172.64.32.187 and 173.245.58.187.