mathstudyapp.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mathstudyapp.com`

DNSSEC	⚠️ Not signed
A	216.198.79.1^{🇺🇸 Amazon216.198.79.0/24 EC2 Prefix}
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	`v=spf1 include:zohomail.com ~all`
TXT	`zoho-verification=zb18653421.zmverify.zoho.com`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2416846555

`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=1792789436

Same first word

mathstudyapp.com

Previous names

Next names

DNS History

8 records (8 active, 0 former)

●NScuritiba.ns.porkbun.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●NSfortaleza.ns.porkbun.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●NSmaceio.ns.porkbun.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●NSsalvador.ns.porkbun.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●MXmx.zoho.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●MXmx2.zoho.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●MXmx3.zoho.com2026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

●A216.198.79.12026-10-07 → 2026-10-23 · 2 obs

● 2026-10-07 03:57:30
● 2026-10-23 21:05:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mathstudyapp.com	maceio.ns.porkbun.com, salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, curitiba.ns.porkbun.com	8 records

✅ Authoritative Response

Server:162.159.8.140

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathstudyapp.com (unsigned zone)

⏱️ Timing

Total: 622ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.198.79.1`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	2	`v=spf1 include:zohomail.com ~all, zoho-verification=zb18653421.zmverify.zo`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (maceio.ns.porkbun.com, maceio.ns.porkbun.com, salvador.ns.porkbun.com...)

Analysis

IP Addresses

mathstudyapp.com points to a single IP number: 216.198.79.1.

Additional host names — okeicertification.com, paigenashbach.com, nextblock.kr and two others — share IP numbers with mathstudyapp.com.

Name Servers

mathstudyapp.com has four authoritative name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

mathstudyapp.com has at least partial name server overlap with other domains, such as cerebrumcity.com, anagocleanersct.com, ibtesamsadiq.com and two others.

curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com all point to exactly two IP numbers each: curitiba.ns.porkbun.com → 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com → 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com → 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com → 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

mathstudyapp.com has three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.

mathstudyapp.com shares mail servers — at least in part — with other domains, including eventeros.pe, yardiva.com, ainx.ae and two others.

All three — mx2.zoho.com, mx3.zoho.com and mx.zoho.com — point to 136.143.191.44 as their single IP address.

mx2.zoho.com, mx3.zoho.com and mx.zoho.com are host names that all point to 136.143.191.44.