pythonbasics.courses - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`pythonbasics.courses`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:fca^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:a3f4^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.202^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.244^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`randall.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ceb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`randall.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`randall.ns.cloudflare.com`
		A	108.162.195.235^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	162.159.44.235^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
		A	172.64.35.235^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`randall.ns.cloudflare.com`
NS	`stella.ns.cloudflare.com`
		A	2606:4700:50::a29f:269a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stella.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c29a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`stella.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:229a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`stella.ns.cloudflare.com`
		A	108.162.194.154^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stella.ns.cloudflare.com`
		A	162.159.38.154^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stella.ns.cloudflare.com`
		A	172.64.34.154^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`stella.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	2607:f8b0:4004:c1f::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f27.1e100.net`
		A	2607:f8b0:4004:c21::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f26.1e100.net`
		A	2607:f8b0:4004:c21::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pe-in-f27.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
		A	64.233.180.27^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f27.1e100.net`
			PTR	`pe-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.115.26^{🇺🇸 Google172.253.115.0/24}
			PTR	`bg-in-f26.1e100.net`
TXT	`google-site-verification=SrNpuD3Q8NJQ4nzkQTSv89O4_6U2GvMItB9sMon8baY`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.15.202, 172.67.163.244
		IPv6 hints	2606:4700:3031::6815:fca, 2606:4700:3036::ac43:a3f4
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=2, name=cloudflare-ech.com
SOA	`randall.ns.cloudflare.com`dns@cloudflare.com serial=2412558237

`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.courses`admin@tldns.godaddy serial=1788256992

⚠️ On DNS blocklist: spam-tlds

Same first word

pythonbasics.com

pythonbasics.org

pythonbasics.pages.dev

pythonbasics.courses

Previous names

Next names

DNS History

7 records (7 active, 0 former)

●NSrandall.ns.cloudflare.com2026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●NSstella.ns.cloudflare.com2026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●MXsmtp.google.com2026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●A104.21.15.2022026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●A172.67.163.2442026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●A2606:4700:3031::6815:fca2026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

●A2606:4700:3036::ac43:a3f42026-08-23 → 2026-09-01 · 2 obs

● 2026-08-23 07:54:38
● 2026-09-01 10:11:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
courses	a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...	12 records
pythonbasics.courses	stella.ns.cloudflare.com, randall.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.235

NS records: stella.ns.cloudflare.com, randall.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at courses: Error: DNS query timeout: 37.209.192.9 for DNSKEY courses

⏱️ Timing

Total: 3720ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.15.202, 172.67.163.244`
AAAA	2	`2606:4700:3031::6815:fca, 2606:4700:3036::ac43:a3f4`
NS	2	`randall.ns.cloudflare.com, stella.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=SrNpuD3Q8NJQ4nz, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`randall.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, a.nic.courses, b.nic.courses...)

Analysis

IP Addresses

pythonbasics.courses points to the four IP addresses 104.21.15.202, 172.67.163.244, 2606:4700:3031::6815:fca and 2606:4700:3036::ac43:a3f4.

azure-openai.nocity.workers.dev, 226183.cyou, trancestation.ru plus two other host names have IP numbers in common with pythonbasics.courses.

Name Servers

The NS records for pythonbasics.courses delegate to randall.ns.cloudflare.com and stella.ns.cloudflare.com.

The name server configuration of pythonbasics.courses is shared with other domains, for instance win4.uk, pmcfamily.com, pegas-bfd.workers.dev and two others.

The name servers of pythonbasics.courses overlap at least partially with those of other domains — among them biboboying.com.cn, gg259.bet, yohoslot-luchshie-sloty-almighty-mustang-express-02odz.pages.dev and two more.

These name servers commonly appear in combination with the name servers nero.ns.cloudflare.com.

Hosts with 6 IP addresses each:

randall.ns.cloudflare.com maps to 108.162.195.235, 162.159.44.235, 172.64.35.235 and 3 additional IP addresses.

stella.ns.cloudflare.com maps to 108.162.194.154, 162.159.38.154, 172.64.34.154 and 3 additional IP addresses.

Mail Servers

pythonbasics.courses uses one mail server — smtp.google.com.

The mail server setup of pythonbasics.courses matches that of other domains such as matsuroyya.sch.id, momentumalley.com, nassauinvestcapadvisoryf.info and two others.

At least some of the mail servers used by pythonbasics.courses are shared with other domains: medina2024.com, omnivatelehealth.com, dancemechanics.com and two others among them.

smtp.google.com has 9 IP addresses: 64.233.180.26, 64.233.180.27, 142.251.179.26 plus 6 more.