justback.io - robtex.com
justback.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.28.196Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.147.131🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | adrian.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a39🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c039🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2039🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| A | 108.162.192.57🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| A | 172.64.32.57🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| A | 173.245.58.57🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | adrian.ns.cloudflare.com | ||||||
| NS | renan.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c3e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c33e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:233e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| A | 108.162.195.62🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| A | 162.159.44.62Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| A | 172.64.35.62🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | renan.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.28.196, 172.67.147.131 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=143, name=cloudflare-ech.com | ||||||
| SOA | adrian.ns.cloudflare.comdns@cloudflare.com serial=2400354989 | ||||||
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=1778630704 | ||||||
Same first word
justback.io |
DNS History
4 records (4 active, 0 former)
●NSadrian.ns.cloudflare.com2026-04-04 → 2026-05-13 · 2 obs
● 2026-05-13 00:21:48
●NSrenan.ns.cloudflare.com2026-04-04 → 2026-05-13 · 2 obs
● 2026-05-13 00:21:48
●A104.21.28.1962026-04-04 → 2026-05-13 · 2 obs
● 2026-05-13 00:21:48
●A172.67.147.1312026-04-04 → 2026-05-13 · 2 obs
● 2026-05-13 00:21:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | b0.nic.io, c0.nic.io, a0.nic.io, a2.nic.io | - |
| justback.io | renan.ns.cloudflare.com, adrian.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.62
NS records: renan.ns.cloudflare.com, adrian.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for justback.io (unsigned zone)
⏱️ Timing
Total: 302ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.147.131, 104.21.28.196 |
| NS | 2 | adrian.ns.cloudflare.com, renan.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | adrian.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
justback.io points to two IP numbers: 104.21.28.196 and 172.67.147.131.
Other host names, for instance www.o(0x666170).ru, techzzwebb.com, sperm(0x736578).com, outociveonsvia.com and www.calmpointluxe.pro share IP numbers with justback.io.
Name Servers
justback.io is delegated to two name servers: adrian.ns.cloudflare.com and renan.ns.cloudflare.com.
justback.io uses the same name server setup as other domains, for instance bingelab.co.in, executta.com.br, railroad-photos.com, winhugo.com and luban.tw.
justback.io shares name servers with other domains at least partially, for instance solcasino2431.com, initiativetabletop.com, devos.nl, 6s5j4d.com and tlca1and2.org.
these name servers are commonly used together with tim.ns.cloudflare.com and peyton.ns.cloudflare.com.
Host names with six IP numbers: adrian.ns.cloudflare.com points to 2606:4700:50::adf5:3a39, 2803:f800:50::6ca2:c039, 2a06:98c1:50::ac40:2039, 108.162.192.57, 172.64.32.57 and 173.245.58.57; renan.ns.cloudflare.com points to 2606:4700:58::a29f:2c3e, 2803:f800:50::6ca2:c33e, 2a06:98c1:50::ac40:233e, 108.162.195.62, 162.159.44.62 and 172.64.35.62.