knowflow.study - robtex.com
knowflow.study
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:2de🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::ac43:81bf🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.2.222Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.129.191🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | lorna.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3abe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0be🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20be🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| A | 108.162.192.190🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| A | 172.64.32.190🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| A | 173.245.58.190🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lorna.ns.cloudflare.com | ||||||
| NS | reese.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c75🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c375🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2375🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| A | 108.162.195.117🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| A | 162.159.44.117Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| A | 172.64.35.117🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | reese.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.2.222, 172.67.129.191 | ||||||
| IPv6 hints | 2606:4700:3033::6815:2de, 2606:4700:3037::ac43:81bf | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=108, name=cloudflare-ech.com | ||||||
| SOA | lorna.ns.cloudflare.comdns@cloudflare.com serial=2399500749 | ||||||
study
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.study ⭐ | ||||||
| NS | b.nic.study | ||||||
| NS | c.nic.study | ||||||
| NS | x.nic.study | ||||||
| NS | y.nic.study | ||||||
| NS | z.nic.study | ||||||
| SOA | a.nic.studyadmin@tldns.godaddy serial=1778424189 | ||||||
Same first word
DNS History
6 records (6 active, 0 former)
●NSlorna.ns.cloudflare.com2026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
●NSreese.ns.cloudflare.com2026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
●A104.21.2.2222026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
●A172.67.129.1912026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
●A2606:4700:3033::6815:2de2026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
●A2606:4700:3037::ac43:81bf2026-05-07 → 2026-05-10 · 2 obs
● 2026-05-10 15:19:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | b.nic.study, a.nic.study, z.nic.study, y.nic.study... | 12 records |
| knowflow.study | lorna.ns.cloudflare.com, reese.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.192.190
NS records: lorna.ns.cloudflare.com, reese.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowflow.study (unsigned zone)
⏱️ Timing
Total: 472ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.2.222, 172.67.129.191 |
| AAAA | 2 | 2606:4700:3037::ac43:81bf, 2606:4700:3033::6815:2de |
| NS | 2 | lorna.ns.cloudflare.com, reese.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | lorna.ns.cloudflare.com dns.cloudflare.c |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.study, y.nic.study, x.nic.study...)
Analysis
IP Addresses
knowflow.study resolves to four IP numbers: 2606:4700:3033::6815:2de, 2606:4700:3037::ac43:81bf, 104.21.2.222 and 172.67.129.191.
Other host names such as www.gyglz.net, rollinghillsconstruction.com, jeninuqalumcapital.digital, millenniumfuturity.com and denalialaskajobs.com share IPs with knowflow.study.
Name Servers
knowflow.study is delegated to two name servers: lorna.ns.cloudflare.com and reese.ns.cloudflare.com.
knowflow.study shares the same name server setup as edutrack.courses, joynectar.asia, leclairon.qc.ca, gotmint.org and learnnest.study.
knowflow.study at least partially shares name servers with other domains, for instance wuyiwangpai.com, sisp.eu, templerecords.co.uk, bodhidesignsbd.ca and xjmp.net.
These name servers are commonly used with violet.ns.cloudflare.com and surina.ns.cloudflare.com.
Host names with six IP numbers:
lorna.ns.cloudflare.com points to 2606:4700:50::adf5:3abe, 2803:f800:50::6ca2:c0be, 2a06:98c1:50::ac40:20be, 108.162.192.190, 172.64.32.190 and 173.245.58.190.
reese.ns.cloudflare.com points to 2606:4700:58::a29f:2c75, 2803:f800:50::6ca2:c375, 2a06:98c1:50::ac40:2375, 108.162.195.117, 162.159.44.117 and 172.64.35.117.