🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`structuredproblemsolving.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:1c39^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:aa62^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.28.57^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.98^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amanda.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a3f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amanda.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c03f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amanda.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:203f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amanda.ns.cloudflare.com`
		A	108.162.192.63^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amanda.ns.cloudflare.com`
		A	172.64.32.63^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amanda.ns.cloudflare.com`
		A	173.245.58.63^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amanda.ns.cloudflare.com`
NS	`duke.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b6e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`duke.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`duke.ns.cloudflare.com`
		A	108.162.193.110^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	172.64.33.110^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
		A	173.245.59.110^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`duke.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.28.57, 172.67.170.98
		IPv6 hints	2606:4700:3037::6815:1c39, 2606:4700:3037::ac43:aa62
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=212, name=cloudflare-ech.com
SOA	`amanda.ns.cloudflare.com`dns@cloudflare.com serial=2417046145

`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=1794150861

Same first word

structuredproblemsolving.com

Previous names

Next names

DNS History

15 records (6 active, 9 former)

●NSamanda.ns.cloudflare.com2026-09-28 → 2026-11-08 · 3 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
● 2026-11-08 15:48:46

●NSduke.ns.cloudflare.com2026-09-28 → 2026-11-08 · 3 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
● 2026-11-08 15:48:46

○NSns73.domaincontrol.com2015-05-24 → 2017-04-09 · 4 obs

● 2015-05-24 01:32:50
● 2017-04-09 08:11:06
○ 2026-09-28 07:40:50
○ 2026-11-08 15:48:46

○NSns74.domaincontrol.com2015-05-24 → 2017-04-09 · 4 obs

● 2015-05-24 01:32:50
● 2017-04-09 08:11:06
○ 2026-09-28 07:40:50
○ 2026-11-08 15:48:46

○MXmailstore1.secureserver.net2015-05-24 → 2017-04-09 · 4 obs

● 2015-05-24 01:32:50
● 2017-04-09 08:11:06
○ 2026-09-28 07:40:50
○ 2026-11-08 15:48:46

○MXsmtp.secureserver.net2015-05-24 → 2017-04-09 · 4 obs

● 2015-05-24 01:32:50
● 2017-04-09 08:11:06
○ 2026-09-28 07:40:50
○ 2026-11-08 15:48:46

●A104.21.28.572026-10-11 → 2026-11-08 · 3 obs

○ 2026-09-28 07:40:50
● 2026-10-11 04:47:42
● 2026-11-08 15:48:46

●A172.67.170.982026-10-11 → 2026-11-08 · 3 obs

○ 2026-09-28 07:40:50
● 2026-10-11 04:47:42
● 2026-11-08 15:48:46

○A188.114.96.02026-09-28 → 2026-09-28 · 4 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
○ 2026-10-11 04:47:42
○ 2026-11-08 15:48:46

○A188.114.97.02026-09-28 → 2026-09-28 · 4 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
○ 2026-10-11 04:47:42
○ 2026-11-08 15:48:46

●A2606:4700:3037::6815:1c392026-10-11 → 2026-11-08 · 3 obs

○ 2026-09-28 07:40:50
● 2026-10-11 04:47:42
● 2026-11-08 15:48:46

●A2606:4700:3037::ac43:aa622026-10-11 → 2026-11-08 · 3 obs

○ 2026-09-28 07:40:50
● 2026-10-11 04:47:42
● 2026-11-08 15:48:46

○A2a06:98c1:3120::2026-09-28 → 2026-09-28 · 4 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
○ 2026-10-11 04:47:42
○ 2026-11-08 15:48:46

○A2a06:98c1:3121::2026-09-28 → 2026-09-28 · 4 obs

○ 2017-04-09 08:11:06
● 2026-09-28 07:40:50
○ 2026-10-11 04:47:42
○ 2026-11-08 15:48:46

○A50.63.202.142015-05-24 → 2017-04-09 · 4 obs

● 2015-05-24 01:32:50
● 2017-04-09 08:11:06
○ 2026-09-28 07:40:50
○ 2026-11-08 15:48:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net...	-
structuredproblemsolving.com	duke.ns.cloudflare.com, amanda.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.110

NS records: duke.ns.cloudflare.com, amanda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for structuredproblemsolving.com (unsigned zone)

⏱️ Timing

Total: 314ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.28.57, 172.67.170.98`
AAAA	2	`2606:4700:3037::6815:1c39, 2606:4700:3037::ac43:aa62`
NS	2	`amanda.ns.cloudflare.com, duke.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amanda.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

structuredproblemsolving.com directs to four IP numbers, which are 104.21.28.57, 172.67.170.98, 2606:4700:3037::6815:1c39 and 2606:4700:3037::ac43:aa62.

Additional host names — zarabeauty.com.tr, xgmn5.top, rekening168id.com and two others — share IP numbers with structuredproblemsolving.com.

Name Servers

structuredproblemsolving.com is served by two delegated name servers, amanda.ns.cloudflare.com and duke.ns.cloudflare.com.

structuredproblemsolving.com shares its name server setup with other domains, including pearl-north-tide.pages.dev, hurstboiler.com, grain4712.pages.dev and two others.

The name servers of structuredproblemsolving.com overlap at least partially with those of other domains — among them jl28.fun, brynarms.co.uk, tiz66s.biz and two more.

The name servers anton.ns.cloudflare.com, huxley.ns.cloudflare.com and andy.ns.cloudflare.com are commonly seen alongside these name servers.

Host names with 6 IP numbers:

amanda.ns.cloudflare.com carries IP addresses 108.162.192.63, 172.64.32.63 and 173.245.58.63, with 3 other addresses beyond those.

duke.ns.cloudflare.com carries IP addresses 108.162.193.110, 172.64.33.110 and 173.245.59.110, with 3 other addresses beyond those.

structuredproblemsolving.com - robtex.com