`courtesycomputing.com`

DNSSEC	⚠️ Not signed
A	38.33.213.83^{🇺🇸 PEGTECHINC38.33.192.0/18 PEG TECH INC}
NS	`dahlia.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c059^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dahlia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2059^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dahlia.ns.cloudflare.com`
		A	108.162.192.89^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	172.64.32.89^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	173.245.58.89^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
NS	`sullivan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sullivan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sullivan.ns.cloudflare.com`
		A	108.162.195.161^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	162.159.44.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
		A	172.64.35.161^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sullivan.ns.cloudflare.com`
SOA	`dahlia.ns.cloudflare.com`dns@cloudflare.com serial=2399662634

`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=1776285002

Same first word

courtesycomputing.com

DNS History

10 records (3 active, 7 former)

●NSdahlia.ns.cloudflare.com2026-03-22 → 2026-04-15 · 3 obs

○ 2017-06-08 15:34:06
● 2026-03-22 14:52:20
● 2026-04-15 20:56:24

○NSns1.saints.net2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

○NSns5.dnsmadeeasy.com2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

○NSns6.dnsmadeeasy.com2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

○NSns7.dnsmadeeasy.com2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

●NSsullivan.ns.cloudflare.com2026-03-22 → 2026-04-15 · 3 obs

○ 2017-06-08 15:34:06
● 2026-03-22 14:52:20
● 2026-04-15 20:56:24

○MXdx0.saints.net2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

○MXqueue.saints.net2017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

●A38.33.213.832026-03-22 → 2026-04-15 · 3 obs

○ 2017-06-08 15:34:06
● 2026-03-22 14:52:20
● 2026-04-15 20:56:24

○A74.11.20.322017-06-08 → 2017-06-08 · 3 obs

● 2017-06-08 15:34:06
○ 2026-03-22 14:52:20
○ 2026-04-15 20:56:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
courtesycomputing.com	dahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.89

NS records: dahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for courtesycomputing.com (unsigned zone)

⏱️ Timing

Total: 111ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`38.33.213.83`
NS	2	`dahlia.ns.cloudflare.com, sullivan.ns.cloudflare.com`
SOA	1	`dahlia.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dahlia.ns.cloudflare.com, dahlia.ns.cloudflare.com, dahlia.ns.cloudflare.com...)

Analysis

IP Addresses

courtesycomputing.com points to an IP address: 38.33.213.83.

other host names include nrkts.cn, txpop.com.cn, kbch.com.cn, leonardog.com and xs256.cn; they share IP numbers with courtesycomputing.com.

Name Servers

Two name servers dahlia.ns.cloudflare.com and sullivan.ns.cloudflare.com handle the delegation for courtesycomputing.com.

courtesycomputing.com shares the same name server setup as other domains, for instance aviser.org, androidrobotproductions.com, usaropeaccess.com, sjcalumnae.org and 1314520love.net.

courtesycomputing.com at least partially shares name servers with other domains, for instance xn----itbkgb9adccau2a.com, kitchenspring.cn, frsbridge.ru, pangeariverside.com and banidea.com.

These name servers are commonly used with sunny.ns.cloudflare.com and jaime.ns.cloudflare.com.

Six IP addresses per host:

dahlia.ns.cloudflare.com points to 2606:4700:50::adf5:3a59, 2803:f800:50::6ca2:c059, 2a06:98c1:50::ac40:2059, 108.162.192.89, 172.64.32.89 and 173.245.58.89; sullivan.ns.cloudflare.com points to 2606:4700:58::a29f:2ca1, 2803:f800:50::6ca2:c3a1, 2a06:98c1:50::ac40:23a1, 108.162.195.161, 162.159.44.161 and 172.64.35.161

courtesycomputing.com - robtex.com