🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`practicalprogramming.tech`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9f7b^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3251^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.81^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.159.123^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ada.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a36^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c036^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ada.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2036^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ada.ns.cloudflare.com`
		A	108.162.192.54^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	172.64.32.54^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
		A	173.245.58.54^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ada.ns.cloudflare.com`
NS	`dilbert.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b9b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dilbert.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dilbert.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dilbert.ns.cloudflare.com`
		A	108.162.193.155^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dilbert.ns.cloudflare.com`
		A	172.64.33.155^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dilbert.ns.cloudflare.com`
		A	173.245.59.155^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dilbert.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c1d::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f26.1e100.net`
		A	2607:f8b0:4004:c25::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadtq-in-f27.1e100.net`
		A	2607:f8b0:4004:c29::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f26.1e100.net`
		A	2607:f8b0:4004:c29::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadum-in-f27.1e100.net`
		A	142.251.167.27^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
		A	192.178.218.26^{🇺🇸 Google192.178.218.0/24}
			PTR	`yuiadtq-in-f26.1e100.net`
TXT	`google-site-verification=cm0Mdgem8YjFhwuuV3N7KQ-GQSG2aaSkccePnYR6IKM`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.50.81, 172.67.159.123
		IPv6 hints	2606:4700:3032::ac43:9f7b, 2606:4700:3035::6815:3251
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=28, name=cloudflare-ech.com
SOA	`ada.ns.cloudflare.com`dns@cloudflare.com serial=2414958504

`tech`

	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=1790173438

Same first word

practicalprogramming.tech

practicalprogramming.ph

Previous names

Next names

DNS History

11 records (7 active, 4 former)

●NSada.ns.cloudflare.com2026-09-14 → 2026-09-23 · 2 obs

● 2026-09-14 00:01:20
● 2026-09-23 14:45:34

●NSdilbert.ns.cloudflare.com2026-09-14 → 2026-09-23 · 2 obs

● 2026-09-14 00:01:20
● 2026-09-23 14:45:34

●MXsmtp.google.com2026-09-14 → 2026-09-23 · 2 obs

● 2026-09-14 00:01:20
● 2026-09-23 14:45:34

●A104.21.50.812026-09-16 → 2026-09-23 · 3 obs

○ 2026-09-14 00:01:20
● 2026-09-16 16:30:08
● 2026-09-23 14:45:34

●A172.67.159.1232026-09-16 → 2026-09-23 · 3 obs

○ 2026-09-14 00:01:20
● 2026-09-16 16:30:08
● 2026-09-23 14:45:34

○A188.114.96.02026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 00:01:20
○ 2026-09-16 16:30:08
○ 2026-09-23 14:45:34

○A188.114.97.02026-09-14 → 2026-09-14 · 3 obs

● 2026-09-14 00:01:20
○ 2026-09-16 16:30:08
○ 2026-09-23 14:45:34

●A2606:4700:3032::ac43:9f7b2026-09-16 → 2026-09-23 · 3 obs

○ 2026-09-14 00:01:20
● 2026-09-16 16:30:08
● 2026-09-23 14:45:34

●A2606:4700:3035::6815:32512026-09-16 → 2026-09-23 · 3 obs

○ 2026-09-14 00:01:20
● 2026-09-16 16:30:08
● 2026-09-23 14:45:34

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

● 2026-09-14 00:01:20
○ 2026-09-16 16:30:08
○ 2026-09-23 14:45:34

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

● 2026-09-14 00:01:20
○ 2026-09-16 16:30:08
○ 2026-09-23 14:45:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.net, ns01.trs-dns.com, ns10.trs-dns.info, ns10.trs-dns.org	8 records
practicalprogramming.tech	ada.ns.cloudflare.com, dilbert.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.54

NS records: ada.ns.cloudflare.com, dilbert.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for practicalprogramming.tech (unsigned zone)

⏱️ Timing

Total: 1576ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.50.81, 172.67.159.123`
AAAA	2	`2606:4700:3032::ac43:9f7b, 2606:4700:3035::6815:3251`
NS	2	`ada.ns.cloudflare.com, dilbert.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=cm0Mdgem8YjFhwu, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ada.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)

Analysis

IP Addresses

practicalprogramming.tech has four IP addresses: 104.21.50.81, 172.67.159.123, 2606:4700:3032::ac43:9f7b and 2606:4700:3035::6815:3251.

Two other host names, along with filmcensor.com, arrosriagu.pro and habitualmechanics.com, also share IP numbers with practicalprogramming.tech.

Name Servers

Two name servers handle the delegation for practicalprogramming.tech: ada.ns.cloudflare.com and dilbert.ns.cloudflare.com.

practicalprogramming.tech shares its NS records with other domains, for example rugved-3ff.workers.dev, kvardi.com, aify.ad and two others.

practicalprogramming.tech shares at least some of its name servers with other domains, including wuji794.cc, atelie-etalon.ru, x-xiao9-huya.com and two others.

These name servers are frequently paired with the name servers zahir.ns.cloudflare.com, syeef.ns.cloudflare.com and will.ns.cloudflare.com.

DNS names with 6 IP addresses:

ada.ns.cloudflare.com resolves to 108.162.192.54, 172.64.32.54 and 173.245.58.54 among others, with 3 other IP addresses in total.

dilbert.ns.cloudflare.com resolves to 108.162.193.155, 172.64.33.155 and 173.245.59.155 among others, with 3 other IP addresses in total.

Mail Servers

The sole mail server for practicalprogramming.tech is smtp.google.com.

Among the domains sharing a mail server setup with practicalprogramming.tech are riversiderecordingapp.org, kdamconstruction.com, thetreecompanyusa.com and two others.

There is at least a partial MX overlap between practicalprogramming.tech and other domains, including wyethco.com, mayerlines.top, contractanalyticals.com and two others.

With 9 IP addresses total, smtp.google.com resolves to 142.251.167.27, 142.251.179.26, 173.194.45.26 and 6 others.

practicalprogramming.tech - robtex.com