study66.online - robtex.com
study66.online
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:1c87🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:aad5🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.28.135Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.170.213🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | hans.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3baf🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1af🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21af🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| A | 108.162.193.175🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| A | 172.64.33.175🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| A | 173.245.59.175🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | hans.ns.cloudflare.com | ||||||
| NS | josephine.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2640🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c240🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2240🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| A | 108.162.194.64🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| A | 162.159.38.64Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| A | 172.64.34.64🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | josephine.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.28.135, 172.67.170.213 | ||||||
| IPv6 | 2606:4700:3030::6815:1c87, 2606:4700:3034::ac43:aad5 | ||||||
| SOA | hans.ns.cloudflare.comdns@cloudflare.com serial=2395258977 | ||||||
online
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1774450115 | ||||||
Same first word
study66.online |
Similar names
DNS History
6 records (6 active, 0 former)
●NShans.ns.cloudflare.com2026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
●NSjosephine.ns.cloudflare.com2026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
●A104.21.28.1352026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
●A172.67.170.2132026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
●A2606:4700:3030::6815:1c872026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
●A2606:4700:3034::ac43:aad52026-02-20 → 2026-03-25 · 2 obs
● 2026-03-25 15:15:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| online | ns10.trs-dns.org, ns01.trs-dns.net, ns01.trs-dns.com, ns10.trs-dns.info | - |
| study66.online | hans.ns.cloudflare.com, josephine.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.194.64
NS records: hans.ns.cloudflare.com, josephine.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for study66.online (unsigned zone)
⏱️ Timing
Total: 382ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.28.135, 172.67.170.213 |
| AAAA | 2 | 2606:4700:3034::ac43:aad5, 2606:4700:3030::6815:1c87 |
| NS | 2 | hans.ns.cloudflare.com, josephine.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | hans.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
study66.online points to four IP numbers: 2606:4700:3030::6815:1c87, 2606:4700:3034::ac43:aad5, 104.21.28.135 and 172.67.170.213.
For instance, other host names www.gzxinya.cn, newskannada.in, sodocom.com, broadwaybistrobayonne.com and mail.yufengmedia.com share IP numbers with study66.online.
Name Servers
study66.online is delegated to two name servers: hans.ns.cloudflare.com and josephine.ns.cloudflare.com.
study66.online uses the same name server setup as other domains such as study50.online, buyfin.ru, study20.space, study10.space and study30.online.
study66.online shares name servers with other domains at least partially, for example sy714.net, iprxfw.com, huay5bet.com, pbdev.co and whenshared.com.
These name servers are commonly used together with ned.ns.cloudflare.com, brenda.ns.cloudflare.com, dion.ns.cloudflare.com and asa.ns.cloudflare.com.
Host names with six IP numbers: host name hans.ns.cloudflare.com points to: 2606:4700:58::adf5:3baf, 2803:f800:50::6ca2:c1af, 2a06:98c1:50::ac40:21af, 108.162.193.175, 172.64.33.175 and 173.245.59.175; host name josephine.ns.cloudflare.com points to: 2606:4700:50::a29f:2640, 2803:f800:50::6ca2:c240, 2a06:98c1:50::ac40:2240, 108.162.194.64, 162.159.38.64 and 172.64.34.64.