🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`dataflowcourse.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:dc96^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5692^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.146^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.220.150^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`desiree.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:260d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desiree.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c20d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`desiree.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:220d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`desiree.ns.cloudflare.com`
		A	108.162.194.13^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desiree.ns.cloudflare.com`
		A	162.159.38.13^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desiree.ns.cloudflare.com`
		A	172.64.34.13^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`desiree.ns.cloudflare.com`
NS	`rajeev.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rajeev.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rajeev.ns.cloudflare.com`
		A	108.162.193.224^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	172.64.33.224^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
		A	173.245.59.224^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rajeev.ns.cloudflare.com`
MX	`mx1-hosting.jellyfish.systems` ⭐
		A	162.255.118.28^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse3a.privateemail.com`
MX	`mx2-hosting.jellyfish.systems`⁽¹⁰⁾
		A	162.255.118.29^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`oxse2b.privateemail.com`
MX	`mx3-hosting.jellyfish.systems`⁽²⁰⁾
		A	162.255.118.13^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`mx3-hosting.jellyfish.systems`
TXT	`v=spf1 +a +mx +ip4:185.61.152.20 +ip4:185.61.152.24 include:spf.web-hosting.c...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.86.146, 172.67.220.150
		IPv6 hints	2606:4700:3032::ac43:dc96, 2606:4700:3037::6815:5692
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=175, name=cloudflare-ech.com
SOA	`desiree.ns.cloudflare.com`dns@cloudflare.com serial=2415685543

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1790344754

Same first word

dataflowcourse.com

Similar names

sourcedataflow.us

Previous names

Next names

DNS History

9 records (9 active, 0 former)

●NSdesiree.ns.cloudflare.com2026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●NSrajeev.ns.cloudflare.com2026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●MXmx1-hosting.jellyfish.systems2026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●MXmx2-hosting.jellyfish.systems2026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●MXmx3-hosting.jellyfish.systems2026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●A104.21.86.1462026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●A172.67.220.1502026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●A2606:4700:3032::ac43:dc962026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

●A2606:4700:3037::6815:56922026-09-07 → 2026-09-25 · 2 obs

● 2026-09-07 11:50:58
● 2026-09-25 14:03:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
dataflowcourse.com	rajeev.ns.cloudflare.com, desiree.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.224

NS records: rajeev.ns.cloudflare.com, desiree.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dataflowcourse.com (unsigned zone)

⏱️ Timing

Total: 308ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.86.146, 172.67.220.150`
AAAA	2	`2606:4700:3032::ac43:dc96, 2606:4700:3037::6815:5692`
NS	2	`desiree.ns.cloudflare.com, rajeev.ns.cloudflare.com`
MX	3	`mx2-hosting.jellyfish.systems (pri: 10), mx3-hosting.jellyfish.systems (pri: 20)...`
TXT	1	`v=spf1 +a +mx +ip4:185.61.152.20 +ip4:18`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`desiree.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (rajeev.ns.cloudflare.com, rajeev.ns.cloudflare.com, rajeev.ns.cloudflare.com...)

Analysis

IP Addresses

dataflowcourse.com points to the four IP addresses 104.21.86.146, 172.67.220.150, 2606:4700:3032::ac43:dc96 and 2606:4700:3037::6815:5692.

Additional host names — teakwooddesign.com, www.unite.ca, koadart.com and two others — share IP numbers with dataflowcourse.com.

Name Servers

dataflowcourse.com uses two name servers for its delegation: desiree.ns.cloudflare.com and rajeev.ns.cloudflare.com.

dataflowcourse.com shares its name server setup with other domains, including idrees-se.workers.dev, cesaralonso2800.workers.dev, audimatt.com and two others.

The name servers of dataflowcourse.com overlap at least partially with those of other domains — among them vannvanngaming0.workers.dev, ssz.pages.dev, bsthanthituyetanh.vn and two more.

Host names with 6 IP numbers:

Hostname desiree.ns.cloudflare.com directs to 108.162.194.13, 162.159.38.13 and 172.64.34.13 along with 3 other IP addresses.

Hostname rajeev.ns.cloudflare.com directs to 108.162.193.224, 172.64.33.224 and 173.245.59.224 along with 3 other IP addresses.

Mail Servers

Mail for dataflowcourse.com is routed through three mail servers — mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems and mx3-hosting.jellyfish.systems.

dataflowcourse.com shares mail servers — at least in part — with other domains, including bmphpl.com, horizonpvp.org, serverkamboja196.com and two others.

The hostnames mx1-hosting.jellyfish.systems, mx2-hosting.jellyfish.systems and mx3-hosting.jellyfish.systems each resolve to a single IP: mx1-hosting.jellyfish.systems → 162.255.118.28, mx2-hosting.jellyfish.systems → 162.255.118.29, mx3-hosting.jellyfish.systems → 162.255.118.13.

dataflowcourse.com - robtex.com