studychain.cn - robtex.com
studychain.cn
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3035::6815:194cπΊπΈ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:dff7πΊπΈ Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.25.76Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.223.247πΊπΈ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | guy.ns.cloudflare.com β | ||||||
| A | 2606:4700:58::adf5:3badπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1adπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21adπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| A | 108.162.193.173πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| A | 172.64.33.173πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| A | 173.245.59.173πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | guy.ns.cloudflare.com | ||||||
| NS | jocelyn.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3aaeπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0aeπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20aeπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| A | 108.162.192.174πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| A | 172.64.32.174πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| A | 173.245.58.174πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jocelyn.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.25.76, 172.67.223.247 | ||||||
| IPv6 hints | 2606:4700:3035::6815:194c, 2606:4700:3037::ac43:dff7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=182, name=cloudflare-ech.com | ||||||
| SOA | guy.ns.cloudflare.comdns@cloudflare.com serial=2413073463 | ||||||
cn
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.dns.cn β | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net β οΈ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2035461059 | ||||||
Same first word
Similar names
Previous names
studyb2b.cn |
studybaltics.cn |
studybar.cn |
studybase.cn |
studybetter.cn |
studybi.cn |
studyblog.cn |
studybook.cn |
studybox.cn |
studyboy.cn |
studybuddy.cn |
studybus.cn |
studyca.cn |
studycafe.cn |
studycanada.cn |
studycat.cn |
Next names
studycity.cn |
studycloud.cn |
studyclub.cn |
studycn.cn |
studycompanions.cn |
studycoop.cn |
studycpp.cn |
studycsca.cn |
studyday.cn |
studydayday.cn |
studydesk.cn |
studydo.cn |
studydog.cn |
studydrive.cn |
studyease.cn |
studyeasy.cn |
DNS History
10 records (6 active, 4 former)
βNSguy.ns.cloudflare.com2026-09-01 β 2026-10-20 Β· 2 obs
β 2026-10-20 18:15:52
βNSjocelyn.ns.cloudflare.com2026-09-01 β 2026-10-20 Β· 2 obs
β 2026-10-20 18:15:52
βA104.21.25.762026-10-10 β 2026-10-20 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA172.67.223.2472026-10-10 β 2026-10-20 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA188.114.96.02026-09-01 β 2026-09-01 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA188.114.97.02026-09-01 β 2026-09-01 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA2606:4700:3035::6815:194c2026-10-10 β 2026-10-20 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA2606:4700:3037::ac43:dff72026-10-10 β 2026-10-20 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA2a06:98c1:3120::2026-09-01 β 2026-09-01 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
βA2a06:98c1:3121::2026-09-01 β 2026-09-01 Β· 3 obs
β 2026-10-10 16:34:48
β 2026-10-20 18:15:52
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| studychain.cn | guy.ns.cloudflare.com, jocelyn.ns.cloudflare.com | - |
β Authoritative Response
Server:108.162.193.173
NS records: guy.ns.cloudflare.com, jocelyn.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
β±οΈ Timing
Total: 1740ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.25.76, 172.67.223.247 |
| AAAA | 2 | 2606:4700:3035::6815:194c, 2606:4700:3037::ac43:dff7 |
| NS | 2 | guy.ns.cloudflare.com, jocelyn.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | guy.ns.cloudflare.com dns.cloudflare.com |
Analysis
IP Addresses
studychain.cn directs to four IP numbers, which are 104.21.25.76, 172.67.223.247, 2606:4700:3035::6815:194c and 2606:4700:3037::ac43:dff7.
Two other host names, along with bcgame-apk.net, nurulilmicilamayaulu.ponpes.id and pymoperozo.pro, also share IP numbers with studychain.cn.
Name Servers
The NS records for studychain.cn delegate to guy.ns.cloudflare.com and jocelyn.ns.cloudflare.com.
studychain.cn shares its NS records with other domains, for example masterpower.cn, shuanping.cn, fyxny.cn and two others.
The name servers of studychain.cn overlap at least partially with those of other domains β among them weareonajourney.pages.dev, elenizante.gr, web-mlh.pages.dev and two more.
These name servers commonly appear alongside the name servers marty.ns.cloudflare.com and santino.ns.cloudflare.com.
DNS names with 6 IP addresses:
guy.ns.cloudflare.com maps to 108.162.193.173, 172.64.33.173, 173.245.59.173 and 3 additional IP addresses.
jocelyn.ns.cloudflare.com maps to 108.162.192.174, 172.64.32.174, 173.245.58.174 and 3 additional IP addresses.