studyinchina.io - robtex.com
studyinchina.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:609b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:b7fc🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.96.155Cloudflare104.21.96.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.183.252🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | austin.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b46🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c146🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2146🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| A | 108.162.193.70🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| A | 172.64.33.70🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| A | 173.245.59.70🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | austin.ns.cloudflare.com | ||||||
| NS | opal.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2664🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c264🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2264🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| A | 108.162.194.100🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| A | 162.159.38.100Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| A | 172.64.34.100🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | opal.ns.cloudflare.com | ||||||
| TXT | google-site-verification=rZ-lu75msCmBHyugpjEJx1FziX20Hy96PCpcRVYd4Hg | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.96.155, 172.67.183.252 | ||||||
| IPv6 | 2606:4700:3031::6815:609b, 2606:4700:3033::ac43:b7fc | ||||||
| SOA | austin.ns.cloudflare.comdns@cloudflare.com serial=2399377182 | ||||||
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=1773494468 | ||||||
Same first word
DNS History
7 records (6 active, 1 former)
●NSaustin.ns.cloudflare.com2026-03-11 → 2026-03-23 · 2 obs
● 2026-03-23 21:54:50
●NSopal.ns.cloudflare.com2026-03-11 → 2026-03-23 · 2 obs
● 2026-03-23 21:54:50
●A104.21.96.1552026-03-11 → 2026-03-23 · 2 obs
● 2026-03-23 21:54:50
●A172.67.183.2522026-03-11 → 2026-03-23 · 2 obs
● 2026-03-23 21:54:50
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-16 → 2026-03-16 · 4 obs
● 2026-03-16 22:08:00
○ 2026-03-19 18:31:58
○ 2026-03-23 21:54:50
●A2606:4700:3031::6815:609b2026-03-11 → 2026-03-23 · 5 obs
● 2026-03-16 18:07:00
○ 2026-03-16 22:08:00
● 2026-03-19 18:31:58
● 2026-03-23 21:54:50
●A2606:4700:3033::ac43:b7fc2026-03-11 → 2026-03-23 · 5 obs
● 2026-03-16 18:07:00
○ 2026-03-16 22:08:00
● 2026-03-19 18:31:58
● 2026-03-23 21:54:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, a0.nic.io, a2.nic.io, c0.nic.io | - |
| studyinchina.io | austin.ns.cloudflare.com, opal.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.70
NS records: austin.ns.cloudflare.com, opal.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studyinchina.io (unsigned zone)
⏱️ Timing
Total: 597ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.96.155, 172.67.183.252 |
| AAAA | 2 | 2606:4700:3033::ac43:b7fc, 2606:4700:3031::6815:609b |
| NS | 2 | austin.ns.cloudflare.com, opal.ns.cloudflare.com |
| TXT | 1 | google-site-verification=rZ-lu75msCmBHyu |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | austin.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
Four IP numbers are pointed to by studyinchina.io: 2606:4700:3031::6815:609b, 2606:4700:3033::ac43:b7fc, 104.21.96.155 and 172.67.183.252.
other host names including griffithsgarage.com, julor.info, rub-ks.com, trio-labs.com and jedidefender.com share IP numbers with studyinchina.io.
Name Servers
studyinchina.io is delegated to two name servers austin.ns.cloudflare.com and opal.ns.cloudflare.com.
studyinchina.io shares the same name server setup as other domains, for instance mrspeggs.co.nz, kushalbharat.com, kushalfoundation.in, kipusoep.nl and mrspeggs.com.
studyinchina.io at least partially shares name servers with other domains, for instance lazyprogrammer.me, ji35.com, micromunch.com, egovmonitor.com and gendroninc.com.
These name servers are commonly used with miki.ns.cloudflare.com, hugh.ns.cloudflare.com and pola.ns.cloudflare.com.
Host names with six IP numbers:
Host name austin.ns.cloudflare.com points to: 2606:4700:58::adf5:3b46, 2803:f800:50::6ca2:c146, 2a06:98c1:50::ac40:2146, 108.162.193.70, 172.64.33.70 and 173.245.59.70.
Host name opal.ns.cloudflare.com points to: 2606:4700:50::a29f:2664, 2803:f800:50::6ca2:c264, 2a06:98c1:50::ac40:2264, 108.162.194.100, 162.159.38.100 and 172.64.34.100.