blockstud.io - dns.ninja

`blockstud.io`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:28ce^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::ac43:bc5f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.40.206^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.95^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`earl.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`earl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`earl.ns.cloudflare.com`
		A	108.162.193.161^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	172.64.33.161^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	173.245.59.161^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
NS	`jill.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a7a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jill.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jill.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jill.ns.cloudflare.com`
		A	108.162.192.122^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jill.ns.cloudflare.com`
		A	172.64.32.122^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jill.ns.cloudflare.com`
		A	173.245.58.122^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jill.ns.cloudflare.com`
MX	`linda.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`amir.mx.cloudflare.net`⁽⁷⁰⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`isaac.mx.cloudflare.net`⁽⁷¹⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.40.206, 172.67.188.95
		IPv6 hints	2606:4700:3030::6815:28ce, 2606:4700:3031::ac43:bc5f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com
SOA	`earl.ns.cloudflare.com`dns@cloudflare.com serial=2405275806

`io`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.nic.io` ⭐
	NS	`a2.nic.io`
	NS	`b0.nic.io`
	NS	`c0.nic.io`
	SOA	`a0.nic.io`hostmaster@donuts.email serial=1782703052

Subdomains

www.blockstud.io

Same first word

blockstud.io

Similar names

studblock.com

usdtblock.com

DNS History

23 records (9 active, 14 former)

●NSearl.ns.cloudflare.com2026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

●NSjill.ns.cloudflare.com2026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

○NSns35.domaincontrol.com2018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○NSns36.domaincontrol.com2018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

●MXamir.mx.cloudflare.net2026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

●MXisaac.mx.cloudflare.net2026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

●MXlinda.mx.cloudflare.net2026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

○MXmailstore1.secureserver.net2018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○MXsmtp.secureserver.net2018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

●A104.21.40.2062026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

●A172.67.188.952026-02-21 → 2026-06-29 · 3 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-06-29 03:45:34

○A184.168.221.132018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A184.168.221.292018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A184.168.221.302018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A184.168.221.42018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

●A2606:4700:3030::6815:28ce2026-06-29 → 2026-06-29 · 2 obs

○ 2026-05-07 06:38:04
● 2026-06-29 03:45:34

●A2606:4700:3031::ac43:bc5f2026-06-29 → 2026-06-29 · 2 obs

○ 2026-05-07 06:38:04
● 2026-06-29 03:45:34

○A2606:4700:3032::ac43:bc5f2026-02-21 → 2026-05-07 · 4 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-05-07 06:38:04
○ 2026-06-29 03:45:34

○A2606:4700:3034::6815:28ce2026-02-21 → 2026-05-07 · 4 obs

○ 2018-05-15 03:33:18
● 2026-02-21 12:26:00
● 2026-05-07 06:38:04
○ 2026-06-29 03:45:34

○A50.63.202.12018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A50.63.202.182018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A50.63.202.242018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

○A50.63.202.282018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 03:33:18
○ 2026-02-21 12:26:00
○ 2026-06-29 03:45:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
io	a2.nic.io, a0.nic.io, c0.nic.io, b0.nic.io	-
blockstud.io	jill.ns.cloudflare.com, earl.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.161

NS records: jill.ns.cloudflare.com, earl.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blockstud.io (unsigned zone)

⏱️ Timing

Total: 436ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.188.95, 104.21.40.206`
AAAA	2	`2606:4700:3030::6815:28ce, 2606:4700:3031::ac43:bc5f`
NS	2	`earl.ns.cloudflare.com, jill.ns.cloudflare.com`
MX	3	`linda.mx.cloudflare.net (pri: 34), amir.mx.cloudflare.net (pri: 70)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`earl.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

blockstud.io serves as the parent of www.blockstud.io.

IP Addresses

blockstud.io resolves to four IP addresses: 104.21.40.206, 172.67.188.95, 2606:4700:3030::6815:28ce and 2606:4700:3031::ac43:bc5f.

aesticaret.com, tmzb.io, www.dreipage2.de and two other host names share IP numbers with blockstud.io.

Name Servers

The NS records for blockstud.io delegate to earl.ns.cloudflare.com and jill.ns.cloudflare.com.

blockstud.io uses the same name servers as several other domains — among them vipgrowing.com, fansoria.com, vh005.xyz and two more.

blockstud.io has at least partial name server overlap with other domains, such as lumivaroc.com, jianfangdc.com, b2gc.com.au and two others.

It is common to see these name servers used together with name servers ali.ns.cloudflare.com and mira.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

earl.ns.cloudflare.com maps to 108.162.193.161, 172.64.33.161, 173.245.59.161 and 3 additional IP addresses.

jill.ns.cloudflare.com maps to 108.162.192.122, 172.64.32.122, 173.245.58.122 and 3 additional IP addresses.

Mail Servers

blockstud.io has three mail servers: amir.mx.cloudflare.net, isaac.mx.cloudflare.net and linda.mx.cloudflare.net.

blockstud.io has at least partial mail server overlap with other domains such as mayitube.com, pes-serbia.net, sitepack.net and two more.

Hostnames that resolve to 6 IP addresses:

amir.mx.cloudflare.net maps to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 additional IP addresses.

isaac.mx.cloudflare.net maps to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 additional IP addresses.

linda.mx.cloudflare.net maps to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 additional IP addresses.