`simlockcheck.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:8cc5^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:26e9^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.38.233^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.197^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jade.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3aa7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0a7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jade.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20a7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jade.ns.cloudflare.com`
		A	108.162.192.167^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	172.64.32.167^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
		A	173.245.58.167^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jade.ns.cloudflare.com`
NS	`terin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bec^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ec^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`terin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ec^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`terin.ns.cloudflare.com`
		A	108.162.193.236^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	172.64.33.236^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
		A	173.245.59.236^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`terin.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.38.233, 172.67.140.197
		IPv6	2606:4700:3030::ac43:8cc5, 2606:4700:3035::6815:26e9
SOA	`jade.ns.cloudflare.com`dns@cloudflare.com serial=2397191825

`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=1774622412

Previously MX for

simlockcheck.com

Same first word

simlockcheck.com

Similar names

checksimlock.net

checksimlock.com

DNS History

10 records (6 active, 4 former)

●NSjade.ns.cloudflare.com2026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

○NSns1.hanggroupltd.com2015-07-05 → 2017-02-16 · 4 obs

● 2015-07-05 13:26:54
● 2017-02-16 04:52:38
○ 2026-03-07 17:28:56
○ 2026-03-27 15:00:58

○NSns2.hanggroupltd.com2015-07-05 → 2017-02-16 · 4 obs

● 2015-07-05 13:26:54
● 2017-02-16 04:52:38
○ 2026-03-07 17:28:56
○ 2026-03-27 15:00:58

●NSterin.ns.cloudflare.com2026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

○MXsimlockcheck.com2015-07-05 → 2017-02-16 · 4 obs

● 2015-07-05 13:26:54
● 2017-02-16 04:52:38
○ 2026-03-07 17:28:56
○ 2026-03-27 15:00:58

●A104.21.38.2332026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

●A172.67.140.1972026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

○A203.143.83.862015-07-05 → 2017-02-16 · 4 obs

● 2015-07-05 13:26:54
● 2017-02-16 04:52:38
○ 2026-03-07 17:28:56
○ 2026-03-27 15:00:58

●A2606:4700:3030::ac43:8cc52026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

●A2606:4700:3035::6815:26e92026-03-07 → 2026-03-27 · 3 obs

○ 2017-02-16 04:52:38
● 2026-03-07 17:28:56
● 2026-03-27 15:00:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
simlockcheck.com	jade.ns.cloudflare.com, terin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.167

NS records: jade.ns.cloudflare.com, terin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simlockcheck.com (unsigned zone)

⏱️ Timing

Total: 123ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.38.233, 172.67.140.197`
AAAA	2	`2606:4700:3035::6815:26e9, 2606:4700:3030::ac43:8cc5`
NS	2	`jade.ns.cloudflare.com, terin.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jade.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

simlockcheck.com points to four IP numbers: 2606:4700:3030::ac43:8cc5, 2606:4700:3035::6815:26e9, 104.21.38.233 and 172.67.140.197.

Other host names, for instance dinan-tourisme.com, www.technicalmastermind.org, www.fpwhitepaper.gov.au, waronusd1.cfd and houkangtea.com share IP numbers with simlockcheck.com.

Name Servers

simlockcheck.com is delegated to two name servers: jade.ns.cloudflare.com and terin.ns.cloudflare.com.

simlockcheck.com uses the same name server setup as other domains, for instance hao77.com, lu0.org, aerocenter.co.uk, movexservices.co.uk and goldukmag.co.uk.

simlockcheck.com shares name servers with other domains at least partially, for instance advancedbusinessabilities.com, colegioruibarbosa.g12.br, online.af, (0x736578)tflirt.com and (0x706f726e)-anime.com.

these name servers are commonly used together with izabella.ns.cloudflare.com and henry.ns.cloudflare.com.

Host names with six IP numbers: jade.ns.cloudflare.com points to 2606:4700:50::adf5:3aa7, 2803:f800:50::6ca2:c0a7, 2a06:98c1:50::ac40:20a7, 108.162.192.167, 172.64.32.167 and 173.245.58.167; terin.ns.cloudflare.com points to 2606:4700:58::adf5:3bec, 2803:f800:50::6ca2:c1ec, 2a06:98c1:50::ac40:21ec, 108.162.193.236, 172.64.33.236 and 173.245.59.236.

simlockcheck.com - robtex.com