🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`studydeck.org`

DNSSEC	⚠️ Not signed
A	216.24.57.16^{🇺🇸 AS397273216.24.57.0/24 655 5th St 19 San Francisco CA 94107 United States}
		PTR	`ip-216-24-57-16.ingress.render.com`
A	216.24.57.18^{🇺🇸 AS397273216.24.57.0/24 655 5th St 19 San Francisco CA 94107 United States}
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx2.zoho.com` ⭐
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`google-site-verification=99DX1CPk65afa9r0gRBTr6q-uCGiK9VGyj_QJIS98nE`
TXT	`v=spf1 include:zohomail.com ~all`
TXT	`zoho-verification=zb49158699.zmverify.zoho.com`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2366366474

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1790559289

Same first word

studydeck.de

studydeck.io

studydeck.com

studydeck.pages.dev

studydeck.online

studydeck.cc

studydeck.me

studydeck.org

studydeck.space

studydeck.top

studydeck.in

studydeck.workers.dev

studydeck.ai

Similar names

deckstudy.com

dustydeck.org

dustydeck.com

deckstudy.space

Previous names

Next names

DNS History

15 records (9 active, 6 former)

●NScuritiba.ns.porkbun.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

●NSfortaleza.ns.porkbun.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

●NSmaceio.ns.porkbun.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

○NSns1.dreamhost.com2015-07-15 → 2017-03-17 · 4 obs

● 2015-07-15 09:24:58
● 2017-03-17 21:06:16
○ 2026-09-24 17:45:34
○ 2026-09-28 02:04:04

○NSns2.dreamhost.com2015-07-15 → 2017-03-17 · 4 obs

● 2015-07-15 09:24:58
● 2017-03-17 21:06:16
○ 2026-09-24 17:45:34
○ 2026-09-28 02:04:04

○NSns3.dreamhost.com2015-07-15 → 2017-03-17 · 4 obs

● 2015-07-15 09:24:58
● 2017-03-17 21:06:16
○ 2026-09-24 17:45:34
○ 2026-09-28 02:04:04

●NSsalvador.ns.porkbun.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

●MXmx.zoho.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

○MXmx1.sub4.homie.mail.dreamhost.com2015-07-15 → 2017-03-17 · 4 obs

● 2015-07-15 09:24:58
● 2017-03-17 21:06:16
○ 2026-09-24 17:45:34
○ 2026-09-28 02:04:04

○MXmx2.sub4.homie.mail.dreamhost.com2015-07-15 → 2017-03-17 · 4 obs

● 2015-07-15 09:24:58
● 2017-03-17 21:06:16
○ 2026-09-24 17:45:34
○ 2026-09-28 02:04:04

●MXmx2.zoho.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

●MXmx3.zoho.com2026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

○A205.196.210.1862015-07-15 → 2016-04-27 · 4 obs

● 2015-07-15 09:24:58
● 2016-04-27 14:38:08
○ 2017-03-17 21:06:16
○ 2026-09-28 02:04:04

●A216.24.57.162026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

●A216.24.57.182026-09-24 → 2026-09-28 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-09-28 02:04:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org	-
studydeck.org	curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com	-

✅ Authoritative Response

Server:162.159.10.150

NS records: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studydeck.org (unsigned zone)

⏱️ Timing

Total: 742ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`216.24.57.18, 216.24.57.16`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	3	`google-site-verification=99DX1CPk65afa9r, v=spf1 include:zohomail.com ~all...`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

Analysis

IP Addresses

studydeck.org points to the IP addresses 216.24.57.16 and 216.24.57.18

Two other host names, along with code-quest.app, crom.ai and kirurgi.xyz, also share IP numbers with studydeck.org.

Name Servers

The NS records for studydeck.org point to four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

There is at least partial name server overlap between studydeck.org and other domains — thorneandpenrose.com, nicaraguaprivatestays.com, latenightradio.net and two more among them.

All four hostnames — curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com — resolve to two IP numbers apiece: curitiba.ns.porkbun.com to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

Incoming mail for studydeck.org is delivered via three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

There is at least a partial MX overlap between studydeck.org and other domains, including pittheus.com, dicar.co, cmc-tv.org and two others.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com all resolve to 136.143.191.44, with each host carrying exactly one IP address.

Each of mx2.zoho.com, mx3.zoho.com and mx.zoho.com resolves to 136.143.191.44.

studydeck.org - robtex.com

studydeck.org

org

Same first word

Similar names

Previous names

Next names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`studydeck.org`

`org`