masteringdevtools.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`masteringdevtools.com`

DNSSEC	⚠️ Not signed
A	18.208.88.157^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
		PTR	`ec2-18-208-88-157.compute-1.amazonaws.com`
A	98.84.224.111^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
NS	`dns1.p01.nsone.net` ⭐
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p01.nsone.net`
NS	`dns1.p05.nsone.net`
		A	2620:4d:4000:6259:7:5:0:1^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns1.p05.nsone.net`
		A	198.51.44.5^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns1.p05.nsone.net`
NS	`dns2.p05.nsone.net`
		A	2a00:edc0:6259:7:5::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p05.nsone.net`
		A	198.51.45.5^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns2.p05.nsone.net`
NS	`dns3.p05.nsone.net`
		A	2620:4d:4000:6259:7:5:0:3^{🇺🇸 NSONE2620:4d:4000::/48 PNAP-ACS nsone-1}
			PTR	`dns3.p05.nsone.net`
		A	198.51.44.69^{🇺🇸 NSONE198.51.44.0/24}
			PTR	`dns3.p05.nsone.net`
NS	`dns4.p05.nsone.net`
		A	2a00:edc0:6259:7:5::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns4.p05.nsone.net`
		A	198.51.45.69^{🇺🇸 NSONE198.51.45.0/24}
			PTR	`dns4.p05.nsone.net`
SOA	`dns1.p01.nsone.net`domains+netlify@netlify.com serial=1739740045

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1792691406

Same first word

masteringdevtools.com

Previous names

Next names

DNS History

18 records (7 active, 11 former)

○NSa.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○NSb.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○NSc.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○NSd.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

●NSdns1.p01.nsone.net2026-08-25 → 2026-10-22 · 3 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
● 2026-10-22 18:28:42

●NSdns1.p05.nsone.net2026-08-25 → 2026-10-22 · 3 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
● 2026-10-22 18:28:42

●NSdns2.p05.nsone.net2026-08-25 → 2026-10-22 · 3 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
● 2026-10-22 18:28:42

●NSdns3.p05.nsone.net2026-08-25 → 2026-10-22 · 3 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
● 2026-10-22 18:28:42

●NSdns4.p05.nsone.net2026-08-25 → 2026-10-22 · 3 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
● 2026-10-22 18:28:42

○NSe.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○NSf.zeit.world2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○NSns11.constellix.com2018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○A13.56.48.872018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

○A130.211.93.802018-08-01 → 2018-08-01 · 3 obs

● 2018-08-01 20:21:52
○ 2026-08-25 03:11:24
○ 2026-10-22 18:28:42

●A18.208.88.1572026-10-19 → 2026-10-22 · 3 obs

○ 2026-08-25 03:11:24
● 2026-10-19 09:44:22
● 2026-10-22 18:28:42

○A35.157.26.1352026-08-25 → 2026-08-25 · 4 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
○ 2026-10-19 09:44:22
○ 2026-10-22 18:28:42

○A63.176.8.2182026-08-25 → 2026-08-25 · 4 obs

○ 2018-08-01 20:21:52
● 2026-08-25 03:11:24
○ 2026-10-19 09:44:22
○ 2026-10-22 18:28:42

●A98.84.224.1112026-10-19 → 2026-10-22 · 3 obs

○ 2026-08-25 03:11:24
● 2026-10-19 09:44:22
● 2026-10-22 18:28:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...	-
masteringdevtools.com	dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net, dns4.p05.nsone.net	-

✅ Authoritative Response

Server:198.51.45.69

NS records: dns1.p05.nsone.net, dns2.p05.nsone.net, dns3.p05.nsone.net, dns4.p05.nsone.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteringdevtools.com (unsigned zone)

⏱️ Timing

Total: 1189ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`18.208.88.157, 98.84.224.111`
NS	4	`dns1.p05.nsone.net, dns2.p05.nsone.net...`
SOA	1	`dns1.p01.nsone.net domains+netlify.netli`

Analysis

IP Addresses

masteringdevtools.com resolves to the IP addresses 18.208.88.157 and 98.84.224.111

unchainedceo.store, crypto-06y.netlify.app, m45.works and two other host names share IP numbers with masteringdevtools.com.

Name Servers

masteringdevtools.com has five name servers, which are dns1.p01.nsone.net, dns1.p05.nsone.net, dns2.p05.nsone.net and two others.

masteringdevtools.com shares at least some of its name servers with other domains, including marcusschons.com, sniperdeals.co.uk, bedrockascend.com and two others.

These name servers are frequently seen alongside dns3.p05.nsone.net, dns4.p05.nsone.net, ns01.squarespacedns.com and 7 other name servers.

Hostnames that resolve to two IP addresses:

dns1.p01.nsone.net resolves to 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1.

dns1.p05.nsone.net resolves to 198.51.44.5 and 2620:4d:4000:6259:7:5:0:1.

dns2.p05.nsone.net resolves to 198.51.45.5 and 2a00:edc0:6259:7:5::2.

dns3.p05.nsone.net resolves to 198.51.44.69 and 2620:4d:4000:6259:7:5:0:3.

dns4.p05.nsone.net resolves to 198.51.45.69 and 2a00:edc0:6259:7:5::4.