jrf.io - robtex.com
jrf.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:2a18🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:c740🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.42.24Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.199.64🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | jobs.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3bb7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1b7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21b7🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| A | 108.162.193.183🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| A | 172.64.33.183🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| A | 173.245.59.183🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jobs.ns.cloudflare.com | ||||||
| NS | robin.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ada🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0da🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20da🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| A | 108.162.192.218🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| A | 172.64.32.218🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| A | 173.245.58.218🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | robin.ns.cloudflare.com | ||||||
| TXT | v=spf1 -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.42.24, 172.67.199.64 | ||||||
| IPv6 | 2606:4700:3031::6815:2a18, 2606:4700:3033::ac43:c740 | ||||||
| SOA | jobs.ns.cloudflare.comdns@cloudflare.com serial=2397004253 | ||||||
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
Similar names
DNS History
10 records (6 active, 4 former)
●NSjobs.ns.cloudflare.com2026-02-15 → 2026-03-23 · 2 obs
● 2026-03-23 15:18:30
●NSrobin.ns.cloudflare.com2026-02-15 → 2026-03-23 · 2 obs
● 2026-03-23 15:18:30
●A104.21.42.242026-02-15 → 2026-03-23 · 4 obs
● 2026-03-06 05:32:28
○ 2026-03-11 03:30:46
● 2026-03-23 15:18:30
●A172.67.199.642026-02-15 → 2026-03-23 · 4 obs
● 2026-03-06 05:32:28
○ 2026-03-11 03:30:46
● 2026-03-23 15:18:30
○A188.114.96.02026-03-11 → 2026-03-11 · 3 obs
● 2026-03-11 03:30:46
○ 2026-03-23 15:18:30
○A188.114.97.02026-03-11 → 2026-03-11 · 3 obs
● 2026-03-11 03:30:46
○ 2026-03-23 15:18:30
●A2606:4700:3031::6815:2a182026-02-15 → 2026-03-23 · 4 obs
● 2026-03-06 05:32:28
○ 2026-03-11 03:30:46
● 2026-03-23 15:18:30
●A2606:4700:3033::ac43:c7402026-02-15 → 2026-03-23 · 4 obs
● 2026-03-06 05:32:28
○ 2026-03-11 03:30:46
● 2026-03-23 15:18:30
○A2a06:98c1:3120::2026-03-11 → 2026-03-11 · 3 obs
● 2026-03-11 03:30:46
○ 2026-03-23 15:18:30
○A2a06:98c1:3121::2026-03-11 → 2026-03-11 · 3 obs
● 2026-03-11 03:30:46
○ 2026-03-23 15:18:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | c0.nic.io, b0.nic.io, a0.nic.io, a2.nic.io | - |
| jrf.io | jobs.ns.cloudflare.com, robin.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.32.218
NS records: jobs.ns.cloudflare.com, robin.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jrf.io (unsigned zone)
⏱️ Timing
Total: 474ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.199.64, 104.21.42.24 |
| AAAA | 2 | 2606:4700:3033::ac43:c740, 2606:4700:3031::6815:2a18 |
| NS | 2 | jobs.ns.cloudflare.com, robin.ns.cloudflare.com |
| TXT | 1 | v=spf1 -all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | jobs.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
jrf.io points to four IP numbers: 2606:4700:3031::6815:2a18, 2606:4700:3033::ac43:c740, 104.21.42.24 and 172.67.199.64.
Other host names, for instance protonjon.link, londonspotlight.co.uk, bitcoinhub.info, anonymsms.com and shquanchi.com share IP numbers with jrf.io.
Name Servers
jrf.io's delegation is to two name servers jobs.ns.cloudflare.com and robin.ns.cloudflare.com.
jrf.io shares the same name server configuration as other domains, such as lk2.ru, 4fin.ru, catastrocordoba.gob.ar, rentascordoba.com.ar and arietis.net.
jrf.io at least partially shares its name servers with other domains, for instance niteshn.info, teamrubiconusa.org, safari-planner.com, brianlim.net and wickedit.me.
These name servers are often used together with the name servers hope.ns.cloudflare.com.
Host names with six IP numbers:
jobs.ns.cloudflare.com points to: 2606:4700:58::adf5:3bb7, 2803:f800:50::6ca2:c1b7, 2a06:98c1:50::ac40:21b7, 108.162.193.183, 172.64.33.183 and 173.245.59.183.
robin.ns.cloudflare.com points to: 2606:4700:50::adf5:3ada, 2803:f800:50::6ca2:c0da, 2a06:98c1:50::ac40:20da, 108.162.192.218, 172.64.32.218 and 173.245.58.218.