programming.dev - dns.ninja

`programming.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:4915^{Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:899f^{Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.73.21^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.137.159^{Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`aliza.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2637^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c237^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`aliza.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2237^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`aliza.ns.cloudflare.com`
		A	108.162.194.55^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	162.159.38.55^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
		A	172.64.34.55^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`aliza.ns.cloudflare.com`
NS	`ricardo.ns.cloudflare.com`
MX	`mx2.zoho.com` ⭐
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.183.44^{🇺🇸 ZohoAS136.143.182.0/23 Zoho}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zoho.com ~all`
TXT	`zoho-verification=zb39306727.zmverify.zoho.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.73.21, 172.67.137.159
		IPv6 hints	2606:4700:3036::6815:4915, 2606:4700:3036::ac43:899f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=133, name=cloudflare-ech.com
SOA	`aliza.ns.cloudflare.com`dns@cloudflare.com serial=2409074362

`dev`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=1

rank #137381 globally
rank #116 in the tld
📈 Tranco rank: #128,107
🔒 HSTS Preload (+subdomains)

Subdomains

www.programming.dev

Same first word

Similar names

porgramming.com

DNS History

11 records (9 active, 2 former)

●NSaliza.ns.cloudflare.com2026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●NSricardo.ns.cloudflare.com2026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●MXmx.zoho.com2026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●MXmx2.zoho.com2026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●MXmx3.zoho.com2026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●A104.21.73.212026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

●A172.67.137.1592026-02-15 → 2026-07-26 · 2 obs

● 2026-02-15 07:08:42
● 2026-07-26 01:53:34

○A2606:4700:3031::6815:49152026-02-15 → 2026-02-15 · 3 obs

● 2026-02-15 07:08:42
○ 2026-07-25 11:58:36
○ 2026-07-26 01:53:34

○A2606:4700:3031::ac43:899f2026-02-15 → 2026-02-15 · 3 obs

● 2026-02-15 07:08:42
○ 2026-07-25 11:58:36
○ 2026-07-26 01:53:34

●A2606:4700:3036::6815:49152026-07-25 → 2026-07-26 · 3 obs

○ 2026-02-15 07:08:42
● 2026-07-25 11:58:36
● 2026-07-26 01:53:34

●A2606:4700:3036::ac43:899f2026-07-25 → 2026-07-26 · 3 obs

○ 2026-02-15 07:08:42
● 2026-07-25 11:58:36
● 2026-07-26 01:53:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
programming.dev	aliza.ns.cloudflare.com, ricardo.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.55

NS records: aliza.ns.cloudflare.com, ricardo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for programming.dev (unsigned zone)

⏱️ Timing

Total: 2167ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.73.21, 172.67.137.159`
AAAA	2	`2606:4700:3036::ac43:899f, 2606:4700:3036::6815:4915`
NS	2	`aliza.ns.cloudflare.com, ricardo.ns.cloudflare.com`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	2	`v=spf1 include:zoho.com ~all, zoho-verification=zb39306727.zmverify.zo`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`aliza.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

programming.dev serves as the parent of www.programming.dev.

IP Addresses

programming.dev has four IP addresses: 104.21.73.21, 172.67.137.159, 2606:4700:3036::6815:4915 and 2606:4700:3036::ac43:899f.

Name Servers

The NS records for programming.dev delegate to aliza.ns.cloudflare.com and ricardo.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

aliza.ns.cloudflare.com maps to 108.162.194.55, 162.159.38.55, 172.64.34.55 and 3 additional IP addresses.

Mail Servers

programming.dev has three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

Each of the three hostnames — mx2.zoho.com, mx3.zoho.com and mx.zoho.com — has a single IP address. mx2.zoho.com and mx3.zoho.com resolve to 136.143.183.44; mx.zoho.com resolves to 204.141.33.44.

mx2.zoho.com and mx3.zoho.com each have 136.143.183.44 IP addresses.