fplot.courses - robtex.com
fplot.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 104.21.26.240Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.168.156🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | noel.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3bd8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1d8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21d8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 108.162.193.216🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 172.64.33.216🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| A | 173.245.59.216🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | noel.ns.cloudflare.com | ||||||
| NS | tia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ae5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0e5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20e5🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| A | 108.162.192.229🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| A | 172.64.32.229🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| A | 173.245.58.229🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | tia.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.26.240, 172.67.168.156 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=7, name=cloudflare-ech.com | ||||||
| SOA | noel.ns.cloudflare.comdns@cloudflare.com serial=2409165710 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1786893843 | ||||||
⚠️ On DNS blocklist: spam-tlds
Subdomains
www.fplot.courses |
Same first word
Similar names
topfl.com |
pflot.ru |
tflop.ru |
flopt.net |
ftlop.gallery |
toplf.com |
ptfol.io |
toplf.cn |
flopt.ru |
fltop.com |
lftop.com |
lotfp.com |
ftpol.com |
DNS History
4 records (4 active, 0 former)
●NSnoel.ns.cloudflare.com2026-07-25 → 2026-08-16 · 2 obs
● 2026-08-16 16:22:18
●NStia.ns.cloudflare.com2026-07-25 → 2026-08-16 · 2 obs
● 2026-08-16 16:22:18
●A104.21.26.2402026-07-25 → 2026-08-16 · 2 obs
● 2026-08-16 16:22:18
●A172.67.168.1562026-07-25 → 2026-08-16 · 2 obs
● 2026-08-16 16:22:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | z.nic.courses, b.nic.courses, x.nic.courses, y.nic.courses... | 12 records |
| fplot.courses | tia.ns.cloudflare.com, noel.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.229
NS records: tia.ns.cloudflare.com, noel.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fplot.courses (unsigned zone)
⏱️ Timing
Total: 356ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.168.156, 104.21.26.240 |
| NS | 2 | noel.ns.cloudflare.com, tia.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | noel.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.courses, z.nic.courses, b.nic.courses...)
Analysis
Hierarchy
fplot.courses is a parent domain of www.fplot.courses.
IP Addresses
fplot.courses resolves to the IP addresses 104.21.26.240 and 172.67.168.156
peachtreeyoga.com, www.jxd.hk, nwaonline.org plus two other host names have IP numbers in common with fplot.courses.
Name Servers
Two name servers handle the delegation for fplot.courses: noel.ns.cloudflare.com and tia.ns.cloudflare.com.
The name server configuration of fplot.courses is shared with other domains, for instance roonit.nl, mrnoandmrno.ru, swapy.app and two others.
fplot.courses shares at least some of its name servers with other domains, including churchgate.org, store1896647.shop, mrmobi.com and two others.
These name servers are frequently seen alongside the name servers ingrid.ns.cloudflare.com.
Hosts with 6 IP addresses each:
noel.ns.cloudflare.com resolves to 108.162.193.216, 172.64.33.216 and 173.245.59.216 among others, with 3 other IP addresses in total.
tia.ns.cloudflare.com resolves to 108.162.192.229, 172.64.32.229 and 173.245.58.229 among others, with 3 other IP addresses in total.