🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`studblocks.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:c11d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:21dd^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.33.221^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.193.29^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cesar.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c77^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cesar.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c377^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cesar.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2377^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cesar.ns.cloudflare.com`
		A	108.162.195.119^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cesar.ns.cloudflare.com`
		A	162.159.44.119^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cesar.ns.cloudflare.com`
		A	172.64.35.119^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cesar.ns.cloudflare.com`
NS	`haley.ns.cloudflare.com`
		A	2606:4700:50::a29f:260f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`haley.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c20f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`haley.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:220f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`haley.ns.cloudflare.com`
		A	108.162.194.15^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`haley.ns.cloudflare.com`
		A	162.159.38.15^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`haley.ns.cloudflare.com`
		A	172.64.34.15^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`haley.ns.cloudflare.com`
MX	`eforward1.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward2.registrar-servers.com` ⭐
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward3.registrar-servers.com` ⭐
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
MX	`eforward4.registrar-servers.com`⁽¹⁵⁾
		A	162.255.118.52^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward2.registrar-servers.com`
MX	`eforward5.registrar-servers.com`⁽²⁰⁾
		A	162.255.118.51^{🇺🇸 NAMCHEAP-PH162.255.118.0/24 Namecheap, Inc. 11400 W. Olympic Blvd. Suite 200 Los Angeles, CA 90064 UNITED STATES}
			PTR	`eforward1.registrar-servers.com`
			PTR	`eforward3.registrar-servers.com`
TXT	`v=spf1 include:spf.efwd.registrar-servers.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.33.221, 172.67.193.29
		IPv6 hints	2606:4700:3030::ac43:c11d, 2606:4700:3035::6815:21dd
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=233, name=cloudflare-ech.com
SOA	`cesar.ns.cloudflare.com`dns@cloudflare.com serial=2416910794

`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=1794467196

Same first word

studblocks.com

Previous names

Next names

DNS History

15 records (11 active, 4 former)

●NScesar.ns.cloudflare.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●NShaley.ns.cloudflare.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●MXeforward1.registrar-servers.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●MXeforward2.registrar-servers.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●MXeforward3.registrar-servers.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●MXeforward4.registrar-servers.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●MXeforward5.registrar-servers.com2026-09-05 → 2026-11-12 · 2 obs

● 2026-09-05 13:09:36
● 2026-11-12 07:30:14

●A104.21.33.2212026-09-06 → 2026-11-12 · 5 obs

○ 2026-09-05 13:09:36
● 2026-09-06 02:31:36
○ 2026-09-22 16:18:10
● 2026-11-04 18:45:42
● 2026-11-12 07:30:14

●A172.67.193.292026-09-06 → 2026-11-12 · 5 obs

○ 2026-09-05 13:09:36
● 2026-09-06 02:31:36
○ 2026-09-22 16:18:10
● 2026-11-04 18:45:42
● 2026-11-12 07:30:14

○A188.114.96.02026-09-05 → 2026-09-22 · 5 obs

● 2026-09-05 13:09:36
○ 2026-09-06 02:31:36
● 2026-09-22 16:18:10
○ 2026-11-04 18:45:42
○ 2026-11-12 07:30:14

○A188.114.97.02026-09-05 → 2026-09-22 · 5 obs

● 2026-09-05 13:09:36
○ 2026-09-06 02:31:36
● 2026-09-22 16:18:10
○ 2026-11-04 18:45:42
○ 2026-11-12 07:30:14

●A2606:4700:3030::ac43:c11d2026-09-06 → 2026-11-12 · 5 obs

○ 2026-09-05 13:09:36
● 2026-09-06 02:31:36
○ 2026-09-22 16:18:10
● 2026-11-04 18:45:42
● 2026-11-12 07:30:14

●A2606:4700:3035::6815:21dd2026-09-06 → 2026-11-12 · 5 obs

○ 2026-09-05 13:09:36
● 2026-09-06 02:31:36
○ 2026-09-22 16:18:10
● 2026-11-04 18:45:42
● 2026-11-12 07:30:14

○A2a06:98c1:3120::2026-09-05 → 2026-09-22 · 5 obs

● 2026-09-05 13:09:36
○ 2026-09-06 02:31:36
● 2026-09-22 16:18:10
○ 2026-11-04 18:45:42
○ 2026-11-12 07:30:14

○A2a06:98c1:3121::2026-09-05 → 2026-09-22 · 5 obs

● 2026-09-05 13:09:36
○ 2026-09-06 02:31:36
● 2026-09-22 16:18:10
○ 2026-11-04 18:45:42
○ 2026-11-12 07:30:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, k.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
studblocks.com	haley.ns.cloudflare.com, cesar.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.15

NS records: haley.ns.cloudflare.com, cesar.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studblocks.com (unsigned zone)

⏱️ Timing

Total: 1254ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.33.221, 172.67.193.29`
AAAA	2	`2606:4700:3030::ac43:c11d, 2606:4700:3035::6815:21dd`
NS	2	`cesar.ns.cloudflare.com, haley.ns.cloudflare.com`
MX	5	`eforward1.registrar-servers.com (pri: 10, eforward2.registrar-servers.com (pri: 10...`
TXT	1	`v=spf1 include:spf.efwd.registrar-server`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cesar.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

studblocks.com directs to four IP numbers, which are 104.21.33.221, 172.67.193.29, 2606:4700:3030::ac43:c11d and 2606:4700:3035::6815:21dd.

toravienne.co.in, lukscasino-81.com, marcosstorion.com.br plus two other host names have IP numbers in common with studblocks.com.

Name Servers

Two name servers handle the delegation for studblocks.com: cesar.ns.cloudflare.com and haley.ns.cloudflare.com.

The name server configuration of studblocks.com is shared with other domains, for instance testquiz.site, ref63331-app-crypto.com, maldives-stays.com and two others.

At least some of studblocks.com's name servers are shared with other domains, for example cigeno.cn, oj7wjts.cn, neweraprojects-ptyltd.workers.dev and two more.

These name servers tend to appear together with the name servers sonny.ns.cloudflare.com, hunts.ns.cloudflare.com and karina.ns.cloudflare.com, plus two others.

Hosts with 6 IP addresses each:

cesar.ns.cloudflare.com resolves to 108.162.195.119, 162.159.44.119 and 172.64.35.119 among others, with 3 other IP addresses in total.

haley.ns.cloudflare.com resolves to 108.162.194.15, 162.159.38.15 and 172.64.34.15 among others, with 3 other IP addresses in total.

Mail Servers

Five mail servers handle studblocks.com: eforward1.registrar-servers.com, eforward2.registrar-servers.com, eforward3.registrar-servers.com and two others.

At least some of the mail servers used by studblocks.com are shared with other domains: macbooklongkhanh.com, blocknotes.org, gloobet.online and two others among them.

It is common to find these mail servers used together with the mail servers eforward4.registrar-servers.com and eforward5.registrar-servers.com.

Host names resolving to a single IP address:

The hostname eforward1.registrar-servers.com resolves to 162.255.118.51.

The hostname eforward2.registrar-servers.com resolves to 162.255.118.52.

The hostname eforward3.registrar-servers.com resolves to 162.255.118.51.

The hostname eforward4.registrar-servers.com resolves to 162.255.118.52.

The hostname eforward5.registrar-servers.com resolves to 162.255.118.51.

Three host names point to 162.255.118.51: eforward1.registrar-servers.com, eforward3.registrar-servers.com and eforward5.registrar-servers.com.

eforward2.registrar-servers.com along with eforward4.registrar-servers.com each resolve to 162.255.118.52 IP addresses.