studyblockchain.org - robtex.com
studyblockchain.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:f2f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:cd88🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.15.47Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.205.136🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | gerardo.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2ce6🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3e6🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23e6🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| A | 108.162.195.230🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| A | 162.159.44.230Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| A | 172.64.35.230🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | gerardo.ns.cloudflare.com | ||||||
| NS | simone.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:261a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c21a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:221a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| A | 108.162.194.26🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| A | 162.159.38.26Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| A | 172.64.34.26🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | simone.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.15.47, 172.67.205.136 | ||||||
| IPv6 hints | 2606:4700:3035::6815:f2f, 2606:4700:3037::ac43:cd88 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=145, name=cloudflare-ech.com | ||||||
| SOA | gerardo.ns.cloudflare.comdns@cloudflare.com serial=2400365991 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1776240519 | ||||||
Same first word
studyblockchain.org |
Similar names
DNS History
9 records (6 active, 3 former)
●NSgerardo.ns.cloudflare.com2026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
○NSns39.domaincontrol.com2017-07-09 → 2017-07-09 · 3 obs
○ 2026-04-11 02:33:12
○ 2026-04-15 08:18:24
○NSns40.domaincontrol.com2017-07-09 → 2017-07-09 · 3 obs
○ 2026-04-11 02:33:12
○ 2026-04-15 08:18:24
●NSsimone.ns.cloudflare.com2026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
●A104.21.15.472026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
○A13.228.21.242017-07-09 → 2017-07-09 · 3 obs
○ 2026-04-11 02:33:12
○ 2026-04-15 08:18:24
●A172.67.205.1362026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
●A2606:4700:3035::6815:f2f2026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
●A2606:4700:3037::ac43:cd882026-04-11 → 2026-04-15 · 3 obs
● 2026-04-11 02:33:12
● 2026-04-15 08:18:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| studyblockchain.org | simone.ns.cloudflare.com, gerardo.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.194.26
NS records: simone.ns.cloudflare.com, gerardo.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studyblockchain.org (unsigned zone)
⏱️ Timing
Total: 375ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.15.47, 172.67.205.136 |
| AAAA | 2 | 2606:4700:3035::6815:f2f, 2606:4700:3037::ac43:cd88 |
| NS | 2 | gerardo.ns.cloudflare.com, simone.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | gerardo.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
Four IP numbers are pointed to by studyblockchain.org: 2606:4700:3035::6815:f2f, 2606:4700:3037::ac43:cd88, 104.21.15.47 and 172.67.205.136.
other host names including 110d3550d148.expotv.eu, hackdogs.com, perfect.uk, mkklcdnbuv1.com and ai.storix.onl share IP numbers with studyblockchain.org.
Name Servers
studyblockchain.org is delegated to two name servers gerardo.ns.cloudflare.com and simone.ns.cloudflare.com.
studyblockchain.org shares the same name server setup as other domains, for instance dragonswap.app, fenikss-casino-lv.com, sacramentostepsforward.org, eyecatchinggallery.com and topnotcher.ph.
studyblockchain.org at least partially shares name servers with other domains, for instance absolutelyabba.com, nmdcw.com, davidsutton.net, mi.com.co and albpaintingandremodeling.com.
These name servers are commonly used alongside jasper.ns.cloudflare.com and nolan.ns.cloudflare.com.
Host names with six IP numbers:
Host name gerardo.ns.cloudflare.com points to: 2606:4700:58::a29f:2ce6, 2803:f800:50::6ca2:c3e6, 2a06:98c1:50::ac40:23e6, 108.162.195.230, 162.159.44.230 and 172.64.35.230.
Host name simone.ns.cloudflare.com points to: 2606:4700:50::a29f:261a, 2803:f800:50::6ca2:c21a, 2a06:98c1:50::ac40:221a, 108.162.194.26, 162.159.38.26 and 172.64.34.26.