letsencrypt.us - dns.ninja

`letsencrypt.us`

DNSSEC	⚠️ Not signed
NS	`owen.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bdb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1db^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`owen.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21db^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`owen.ns.cloudflare.com`
		A	108.162.193.219^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	172.64.33.219^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
		A	173.245.59.219^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`owen.ns.cloudflare.com`
NS	`vera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c093^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2093^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vera.ns.cloudflare.com`
		A	108.162.192.147^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	172.64.32.147^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	173.245.58.147^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
TXT	`v=spf1 -all`
SOA	`owen.ns.cloudflare.com`dns@cloudflare.com serial=2356785385

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1785248957

Same first word

DNS History

18 records (2 active, 16 former)

○NSdns1.registrar-servers.com2015-08-10 → 2017-02-16 · 6 obs

● 2015-08-10 02:35:18
● 2016-01-18 02:26:00
○ 2016-04-18 09:32:54
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○NSdns1.registrar-servers.com,2016-04-18 → 2017-02-16 · 5 obs

○ 2016-01-18 02:26:00
● 2016-04-18 09:32:54
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○NSdns2.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○NSdns3.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○NSdns4.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○NSdns5.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

●NSowen.ns.cloudflare.com2020-02-03 → 2026-07-28 · 3 obs

○ 2017-02-16 09:57:22
● 2020-02-03 05:16:08
● 2026-07-28 15:26:18

●NSvera.ns.cloudflare.com2020-02-03 → 2026-07-28 · 3 obs

○ 2017-02-16 09:57:22
● 2020-02-03 05:16:08
● 2026-07-28 15:26:18

○MX(root)2021-10-03 → 2021-10-03 · 4 obs

○ 2020-02-03 05:16:08
● 2021-10-03 19:51:54
○ 2026-02-18 18:53:52
○ 2026-07-28 15:26:18

○MX.2026-02-18 → 2026-07-28 · 2 obs

○ 2026-02-18 18:53:52
○ 2026-07-28 15:26:18

○MXeforward1.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○MXeforward2.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○MXeforward3.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○MXeforward4.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○MXeforward5.registrar-servers.com2015-08-10 → 2017-02-16 · 4 obs

● 2015-08-10 02:35:18
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○A162.255.119.2512016-01-18 → 2016-01-18 · 4 obs

○ 2015-11-05 07:35:14
● 2016-01-18 02:26:00
○ 2016-04-18 09:32:54
○ 2026-07-28 15:26:18

○A192.64.119.182016-04-18 → 2017-02-16 · 5 obs

○ 2016-01-18 02:26:00
● 2016-04-18 09:32:54
● 2017-02-16 09:57:22
○ 2020-02-03 05:16:08
○ 2026-07-28 15:26:18

○A192.64.119.1962015-08-10 → 2015-11-05 · 4 obs

● 2015-08-10 02:35:18
● 2015-11-05 07:35:14
○ 2016-01-18 02:26:00
○ 2026-07-28 15:26:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...	-
letsencrypt.us	owen.ns.cloudflare.com, vera.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.147

NS records: owen.ns.cloudflare.com, vera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for letsencrypt.us (unsigned zone)

⏱️ Timing

Total: 474ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`owen.ns.cloudflare.com, vera.ns.cloudflare.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`owen.ns.cloudflare.com dns.cloudflare.co`

Analysis

Name Servers

letsencrypt.us has two authoritative name servers — owen.ns.cloudflare.com and vera.ns.cloudflare.com.

letsencrypt.us shares its name server setup with other domains, including letsencrypt.net, 112.178.23.in-addr.arpa, replicawatchwholesale.is and two others.

There is at least partial name server overlap between letsencrypt.us and other domains — ameritaxservice.com, ims-austria.com, alliance-summit.fr and two more among them.

Host names with 6 IP numbers:

owen.ns.cloudflare.com points to 108.162.193.219, 172.64.33.219, 173.245.59.219 and 3 other IP addresses.

vera.ns.cloudflare.com points to 108.162.192.147, 172.64.32.147, 173.245.58.147 and 3 other IP addresses.