`contentqualitycheck.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:b223^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:2b69^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.105^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.178.35^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`clay.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b58^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clay.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c158^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`clay.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2158^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`clay.ns.cloudflare.com`
		A	108.162.193.88^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clay.ns.cloudflare.com`
		A	172.64.33.88^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clay.ns.cloudflare.com`
		A	173.245.59.88^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`clay.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`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.43.105, 172.67.178.35
		IPv6	2606:4700:3030::ac43:b223, 2606:4700:3031::6815:2b69
SOA	`clay.ns.cloudflare.com`dns@cloudflare.com serial=2396679838

`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=1771291435

Same first word

contentqualitycheck.com

DNS History

7 records (6 active, 1 former)

●NSclay.ns.cloudflare.com2026-03-17 → 2026-03-23 · 2 obs

● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

●NSvera.ns.cloudflare.com2026-03-17 → 2026-03-23 · 2 obs

● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

●A104.21.43.1052026-03-17 → 2026-03-23 · 3 obs

○ 2016-04-13 02:46:22
● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

●A172.67.178.352026-03-17 → 2026-03-23 · 3 obs

○ 2016-04-13 02:46:22
● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

●A2606:4700:3030::ac43:b2232026-03-17 → 2026-03-23 · 3 obs

○ 2016-04-13 02:46:22
● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

●A2606:4700:3031::6815:2b692026-03-17 → 2026-03-23 · 3 obs

○ 2016-04-13 02:46:22
● 2026-03-17 21:37:18
● 2026-03-23 12:29:00

○A74.220.199.62015-06-28 → 2016-01-23 · 5 obs

○ 2008-11-28 21:40:00
● 2015-06-28 20:44:22
● 2016-01-23 16:12:10
○ 2016-04-13 02:46:22
○ 2026-03-23 12:29:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
contentqualitycheck.com	vera.ns.cloudflare.com, clay.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.147

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contentqualitycheck.com (unsigned zone)

⏱️ Timing

Total: 173ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.178.35, 104.21.43.105`
AAAA	2	`2606:4700:3030::ac43:b223, 2606:4700:3031::6815:2b69`
NS	2	`clay.ns.cloudflare.com, vera.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`clay.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

contentqualitycheck.com maps to four IP numbers: 2606:4700:3030::ac43:b223, 2606:4700:3031::6815:2b69, 104.21.43.105 and 172.67.178.35.

other host names include hfqyzc.com, (0x736578)teen.pro, mx01.istanbulkafkaskultur.net, japanese(0x706f726e)ovideos.com and 3dwm.org; they share IP numbers with contentqualitycheck.com.

Name Servers

Two name servers clay.ns.cloudflare.com and vera.ns.cloudflare.com handle the delegation for contentqualitycheck.com.

contentqualitycheck.com shares the same name server setup as other domains, for instance levelbank.com, imageee.com, e-jam.info, optimaproducts.com and dezalia.com.

contentqualitycheck.com at least partially shares name servers with other domains, for instance f1236.com, kalkhan.com.tr, amenajez.ro, ravalement-facade.paris and maid123.com.hk.

These name servers are commonly used with ulla.ns.cloudflare.com and lily.ns.cloudflare.com.

Six IP addresses per host:

clay.ns.cloudflare.com points to 2606:4700:58::adf5:3b58, 2803:f800:50::6ca2:c158, 2a06:98c1:50::ac40:2158, 108.162.193.88, 172.64.33.88 and 173.245.59.88; vera.ns.cloudflare.com points to 2606:4700:50::adf5:3a93, 2803:f800:50::6ca2:c093, 2a06:98c1:50::ac40:2093, 108.162.192.147, 172.64.32.147 and 173.245.58.147

contentqualitycheck.com - robtex.com