studydeck.org - dns.ninja

🛡️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	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS204.141.42.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.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=1792312233

Same first word

studydeck.de

studydeck.io

studydeck.com

studydeck.pages.dev

studydeck.online

studydeck.cc

studydeck.me

studydeck.work

studydeck.org

studydeck.space

studydeck.net

studydeck.top

studydeck.in

studydeck.workers.dev

studydeck.ai

Similar names

dustydeck.net

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 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

●NSfortaleza.ns.porkbun.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

●NSmaceio.ns.porkbun.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

●NSsalvador.ns.porkbun.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

●MXmx.zoho.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

●MXmx2.zoho.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

●MXmx3.zoho.com2026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

○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
○ 2026-10-18 09:10:18

●A216.24.57.162026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

●A216.24.57.182026-09-24 → 2026-10-18 · 3 obs

○ 2017-03-17 21:06:16
● 2026-09-24 17:45:34
● 2026-10-18 09:10:18

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:173.245.58.37

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studydeck.org (unsigned zone)

⏱️ Timing

Total: 1254ms | 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 has two IP addresses: 216.24.57.16 and 216.24.57.18

code-quest.app, cafethanda.com, crom.ai plus two other host names have IP numbers in common with studydeck.org.

Name Servers

Four name servers handle the delegation for studydeck.org: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

The name servers of studydeck.org overlap at least partially with those of other domains — among them thorneandpenrose.com, nicaraguaprivatestays.com, latenightradio.net and two more.

Each of the four hosts curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com has two IP addresses. curitiba.ns.porkbun.com points to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25. fortaleza.ns.porkbun.com points to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c. maceio.ns.porkbun.com points to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4. salvador.ns.porkbun.com points to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

Mail for studydeck.org is routed through three mail servers — mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

At least some of the mail servers used by studydeck.org are shared with other domains: pittheus.com, dicar.co, cmc-tv.org and two others among them.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com each resolve to a single IP address: 204.141.43.44.

Three host names point to 204.141.43.44: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.