🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`startprogramming.io`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:432b^{Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:d3fa^{Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.67.43^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.250^{Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dolly.ns.cloudflare.com` ⭐
NS	`sevki.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sevki.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sevki.ns.cloudflare.com`
		A	108.162.195.164^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	162.159.44.164^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
		A	172.64.35.164^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sevki.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=nvL3detHmQsnM5r0`
TXT	`v=spf1 include:icloud.com include:_spf.google.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.67.43, 172.67.211.250
		IPv6 hints	2606:4700:3037::6815:432b, 2606:4700:3037::ac43:d3fa
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com
SOA	`dolly.ns.cloudflare.com`dns@cloudflare.com serial=2413716978

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1790082190

Same first word

startprogramming.org

startprogramming.io

startprogramming.com

DNS History

12 records (8 active, 4 former)

●NSdolly.ns.cloudflare.com2026-09-14 → 2026-09-22 · 2 obs

● 2026-09-14 22:44:56
● 2026-09-22 13:34:32

●NSsevki.ns.cloudflare.com2026-09-14 → 2026-09-22 · 2 obs

● 2026-09-14 22:44:56
● 2026-09-22 13:34:32

●MXmx01.mail.icloud.com2026-09-14 → 2026-09-22 · 2 obs

● 2026-09-14 22:44:56
● 2026-09-22 13:34:32

●MXmx02.mail.icloud.com2026-09-14 → 2026-09-22 · 2 obs

● 2026-09-14 22:44:56
● 2026-09-22 13:34:32

●A104.21.67.432026-09-16 → 2026-09-22 · 3 obs

○ 2026-09-14 22:44:56
● 2026-09-16 14:51:32
● 2026-09-22 13:34:32

●A172.67.211.2502026-09-16 → 2026-09-22 · 3 obs

○ 2026-09-14 22:44:56
● 2026-09-16 14:51:32
● 2026-09-22 13:34:32

○A188.114.96.42026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 22:44:56
○ 2026-09-16 14:51:32
○ 2026-09-22 13:34:32

○A188.114.97.42026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 22:44:56
○ 2026-09-16 14:51:32
○ 2026-09-22 13:34:32

●A2606:4700:3037::6815:432b2026-09-16 → 2026-09-22 · 3 obs

○ 2026-09-14 22:44:56
● 2026-09-16 14:51:32
● 2026-09-22 13:34:32

●A2606:4700:3037::ac43:d3fa2026-09-16 → 2026-09-22 · 3 obs

○ 2026-09-14 22:44:56
● 2026-09-16 14:51:32
● 2026-09-22 13:34:32

○A2a06:98c1:3120::2026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 22:44:56
○ 2026-09-16 14:51:32
○ 2026-09-22 13:34:32

○A2a06:98c1:3121::2026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 22:44:56
○ 2026-09-16 14:51:32
○ 2026-09-22 13:34:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	c0.nic.io, b0.nic.io, a0.nic.io, a2.nic.io	-
startprogramming.io	dolly.ns.cloudflare.com, sevki.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.98

NS records: dolly.ns.cloudflare.com, sevki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 918ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.211.250, 104.21.67.43`
AAAA	2	`2606:4700:3037::6815:432b, 2606:4700:3037::ac43:d3fa`
NS	2	`dolly.ns.cloudflare.com, sevki.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 17), route2.mx.cloudflare.net (pri: 35)...`
TXT	3	`apple-domain=ATRK3hdUEIzuMf5v, apple-domain=nvL3detHmQsnM5r0...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dolly.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

startprogramming.io has four IP addresses: 104.21.67.43, 172.67.211.250, 2606:4700:3037::6815:432b and 2606:4700:3037::ac43:d3fa.

Name Servers

startprogramming.io uses two name servers for its delegation: dolly.ns.cloudflare.com and sevki.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname sevki.ns.cloudflare.com directs to 108.162.195.164, 162.159.44.164 and 172.64.35.164 along with 3 other IP addresses.

Mail Servers

startprogramming.io uses two mail servers, mx01.mail.icloud.com and mx02.mail.icloud.com.

Hosts with 6 IP addresses each:

Hostname mx01.mail.icloud.com directs to 17.42.251.62, 17.56.9.31 and 17.57.152.5 along with 3 other IP addresses.

Hostname mx02.mail.icloud.com directs to 17.42.251.62, 17.56.9.31 and 17.57.152.5 along with 3 other IP addresses.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.42.251.62 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.56.9.31 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.152.5 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.154.33 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.155.25 IP addresses each.

Both mx01.mail.icloud.com and mx02.mail.icloud.com resolve to 17.57.156.30 IP addresses each.

startprogramming.io - robtex.com