programmingcourse.site - dns.ninja

`programmingcourse.site`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:1b6a^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a91e^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.27.106^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.169.30^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`tom.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c193^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tom.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2193^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tom.ns.cloudflare.com`
		A	108.162.193.147^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	172.64.33.147^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	173.245.59.147^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
NS	`vita.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aee^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ee^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vita.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ee^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vita.ns.cloudflare.com`
		A	108.162.192.238^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	172.64.32.238^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
		A	173.245.58.238^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vita.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.27.106, 172.67.169.30
		IPv6 hints	2606:4700:3032::6815:1b6a, 2606:4700:3033::ac43:a91e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=225, name=cloudflare-ech.com
SOA	`tom.ns.cloudflare.com`dns@cloudflare.com serial=2409166372

`site`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1785793147

⚠️ On DNS blocklist: tif
⚠️ On DNS blocklist: spam-tlds

Same first word

programmingcourse.site

Similar names

programmingsource.net

DNS History

8 records (6 active, 2 former)

●NStom.ns.cloudflare.com2026-03-28 → 2026-08-03 · 2 obs

● 2026-03-28 21:29:48
● 2026-08-03 22:14:52

●NSvita.ns.cloudflare.com2026-03-28 → 2026-08-03 · 2 obs

● 2026-03-28 21:29:48
● 2026-08-03 22:14:52

●A104.21.27.1062026-03-28 → 2026-08-03 · 2 obs

● 2026-03-28 21:29:48
● 2026-08-03 22:14:52

●A172.67.169.302026-03-28 → 2026-08-03 · 2 obs

● 2026-03-28 21:29:48
● 2026-08-03 22:14:52

○A2606:4700:3030::ac43:a91e2026-03-28 → 2026-06-17 · 4 obs

● 2026-03-28 21:29:48
● 2026-06-17 00:23:10
○ 2026-07-13 07:55:02
○ 2026-08-03 22:14:52

●A2606:4700:3032::6815:1b6a2026-07-13 → 2026-08-03 · 3 obs

○ 2026-06-17 00:23:10
● 2026-07-13 07:55:02
● 2026-08-03 22:14:52

●A2606:4700:3033::ac43:a91e2026-07-13 → 2026-08-03 · 3 obs

○ 2026-06-17 00:23:10
● 2026-07-13 07:55:02
● 2026-08-03 22:14:52

○A2606:4700:3037::6815:1b6a2026-03-28 → 2026-06-17 · 4 obs

● 2026-03-28 21:29:48
● 2026-06-17 00:23:10
○ 2026-07-13 07:55:02
○ 2026-08-03 22:14:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
site	ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info	-
programmingcourse.site	tom.ns.cloudflare.com, vita.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.193.147

NS records: tom.ns.cloudflare.com, vita.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programmingcourse.site (unsigned zone)

⏱️ Timing

Total: 297ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.169.30, 104.21.27.106`
AAAA	2	`2606:4700:3033::ac43:a91e, 2606:4700:3032::6815:1b6a`
NS	2	`tom.ns.cloudflare.com, vita.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`tom.ns.cloudflare.com dns.cloudflare.com`

Analysis

IP Addresses

programmingcourse.site resolves to four IP addresses: 104.21.27.106, 172.67.169.30, 2606:4700:3032::6815:1b6a and 2606:4700:3033::ac43:a91e.

Two other host names, along with 21cwoman.com, zenithspherego.buzz and casabarre.com, also share IP numbers with programmingcourse.site.

Name Servers

The NS records for programmingcourse.site delegate to tom.ns.cloudflare.com and vita.ns.cloudflare.com.

programmingcourse.site shares its NS records with other domains, for example handsofachild.com, pmearningplus.com, waeg.com and two others.

programmingcourse.site has at least partial name server overlap with other domains, such as hubetubex.com, vancv.com, teasme.co.nz and two others.

These name servers tend to appear together with the name servers kia.ns.cloudflare.com, maya.ns.cloudflare.com and gene.ns.cloudflare.com.

DNS names with 6 IP addresses:

tom.ns.cloudflare.com maps to 108.162.193.147, 172.64.33.147, 173.245.59.147 and 3 additional IP addresses.

vita.ns.cloudflare.com maps to 108.162.192.238, 172.64.32.238, 173.245.58.238 and 3 additional IP addresses.