🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`techmastery.dev`

DNSSEC	⚠️ Not signed
A	216.150.1.1^{🇨🇦 Amazon216.150.1.0/24 EC2 Prefix}
A	216.150.16.1^{🇨🇦 Amazon216.150.16.0/24 EC2 Prefix}
NS	`blair.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2679^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c279^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`blair.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2279^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`blair.ns.cloudflare.com`
		A	108.162.194.121^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	162.159.38.121^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
		A	172.64.34.121^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`blair.ns.cloudflare.com`
NS	`jakub.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c55^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c355^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jakub.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2355^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jakub.ns.cloudflare.com`
		A	108.162.195.85^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	162.159.44.85^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
		A	172.64.35.85^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jakub.ns.cloudflare.com`
SOA	`blair.ns.cloudflare.com`dns@cloudflare.com serial=2411005048

`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

🔒 HSTS Preload (+subdomains)

Same first word

techmastery.in

techmastery.info

techmastery.courses

techmastery.blog

techmastery.dev

techmastery.pro

techmastery.org

techmastery.ai

techmastery.shop

Similar names

Previous names

Next names

DNS History

8 records (4 active, 4 former)

●NSblair.ns.cloudflare.com2026-08-29 → 2026-09-11 · 2 obs

● 2026-08-29 19:23:48
● 2026-09-11 08:19:10

●NSjakub.ns.cloudflare.com2026-08-29 → 2026-09-11 · 2 obs

● 2026-08-29 19:23:48
● 2026-09-11 08:19:10

●A216.150.1.12026-08-29 → 2026-09-11 · 15 obs

● 2026-08-29 19:23:48
○ 2026-08-30 12:53:18
● 2026-08-30 20:36:44
○ 2026-08-31 06:07:04
● 2026-09-02 01:41:56
○ 2026-09-02 12:12:46
● 2026-09-02 20:34:16
○ 2026-09-03 10:13:58
● 2026-09-03 20:16:48
○ 2026-09-03 21:39:02
● 2026-09-06 22:41:12
○ 2026-09-06 23:36:30
● 2026-09-07 18:46:56
○ 2026-09-08 23:31:46
● 2026-09-11 08:19:10

○A216.150.1.1292026-08-30 → 2026-09-07 · 10 obs

○ 2026-08-29 19:23:48
● 2026-08-30 12:53:18
○ 2026-08-30 20:36:44
● 2026-08-31 06:07:04
○ 2026-08-31 19:18:58
● 2026-09-06 12:28:54
○ 2026-09-06 22:41:12
● 2026-09-07 07:44:40
○ 2026-09-07 10:40:48
○ 2026-09-11 08:19:10

○A216.150.1.1932026-08-31 → 2026-09-08 · 15 obs

○ 2026-08-31 06:07:04
● 2026-08-31 19:18:58
○ 2026-09-02 01:41:56
● 2026-09-02 12:12:46
○ 2026-09-02 20:34:16
● 2026-09-03 10:13:58
○ 2026-09-03 20:16:48
● 2026-09-03 21:39:02
○ 2026-09-06 12:28:54
● 2026-09-06 23:36:30
○ 2026-09-07 07:44:40
● 2026-09-07 10:40:48
○ 2026-09-07 18:46:56
● 2026-09-08 23:31:46
○ 2026-09-11 08:19:10

●A216.150.16.12026-08-29 → 2026-09-11 · 15 obs

○A216.150.16.1292026-08-30 → 2026-09-07 · 10 obs

○A216.150.16.1932026-08-31 → 2026-09-08 · 15 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...	-
techmastery.dev	blair.ns.cloudflare.com, jakub.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.121

NS records: blair.ns.cloudflare.com, jakub.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techmastery.dev (unsigned zone)

⏱️ Timing

Total: 700ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.150.16.193, 216.150.1.193`
NS	2	`blair.ns.cloudflare.com, jakub.ns.cloudflare.com`
SOA	1	`blair.ns.cloudflare.com dns.cloudflare.c`

Analysis

IP Addresses

techmastery.dev directs to two IP numbers, 216.150.1.1 and 216.150.16.1

Among the host names that share IP numbers with techmastery.dev are 3d-printer-prices.com, worlddietinitiative.org, funkexstark.de and two others.

Name Servers

techmastery.dev is served by two delegated name servers, blair.ns.cloudflare.com and jakub.ns.cloudflare.com.

techmastery.dev has the same name server delegation as a number of other domains, such as mycustomchatbot-engine.pages.dev, mbo-erp.pages.dev, talosfit-app.workers.dev and two more.

techmastery.dev shares at least some of its name servers with other domains, including senquoravial.com, uniserver-resolve.pages.dev, syrex.net and two others.

These name servers are frequently seen alongside the name servers edward.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

blair.ns.cloudflare.com carries IP addresses 108.162.194.121, 162.159.38.121 and 172.64.34.121, with 3 other addresses beyond those.

jakub.ns.cloudflare.com carries IP addresses 108.162.195.85, 162.159.44.85 and 172.64.35.85, with 3 other addresses beyond those.

techmastery.dev - robtex.com

techmastery.dev

dev