🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`studybystack.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:2602^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d8b5^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.38.2^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.216.181^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`austin.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b46^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`austin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c146^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`austin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2146^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`austin.ns.cloudflare.com`
		A	108.162.193.70^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`austin.ns.cloudflare.com`
		A	172.64.33.70^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`austin.ns.cloudflare.com`
		A	173.245.59.70^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`austin.ns.cloudflare.com`
NS	`candy.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a4f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`candy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`candy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`candy.ns.cloudflare.com`
		A	108.162.192.79^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`candy.ns.cloudflare.com`
		A	172.64.32.79^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`candy.ns.cloudflare.com`
		A	173.245.58.79^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`candy.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		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	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁴⁰⁾
		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	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽¹⁰⁰⁾
		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}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.38.2, 172.67.216.181
		IPv6 hints	2606:4700:3030::6815:2602, 2606:4700:3033::ac43:d8b5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com
SOA	`austin.ns.cloudflare.com`dns@cloudflare.com serial=2416884988

`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=1793231221

Same first word

studybystack.com

Previous names

Next names

DNS History

13 records (9 active, 4 former)

●NSaustin.ns.cloudflare.com2026-10-07 → 2026-10-29 · 2 obs

● 2026-10-07 17:59:12
● 2026-10-29 00:16:40

●NScandy.ns.cloudflare.com2026-10-07 → 2026-10-29 · 2 obs

● 2026-10-07 17:59:12
● 2026-10-29 00:16:40

●MXroute1.mx.cloudflare.net2026-10-17 → 2026-10-29 · 2 obs

● 2026-10-17 07:45:12
● 2026-10-29 00:16:40

●MXroute2.mx.cloudflare.net2026-10-17 → 2026-10-29 · 2 obs

● 2026-10-17 07:45:12
● 2026-10-29 00:16:40

●MXroute3.mx.cloudflare.net2026-10-17 → 2026-10-29 · 2 obs

● 2026-10-17 07:45:12
● 2026-10-29 00:16:40

●A104.21.38.22026-10-26 → 2026-10-29 · 3 obs

○ 2026-10-17 07:45:12
● 2026-10-26 16:19:52
● 2026-10-29 00:16:40

●A172.67.216.1812026-10-26 → 2026-10-29 · 3 obs

○ 2026-10-17 07:45:12
● 2026-10-26 16:19:52
● 2026-10-29 00:16:40

○A188.114.96.02026-10-17 → 2026-10-17 · 3 obs

● 2026-10-17 07:45:12
○ 2026-10-26 16:19:52
○ 2026-10-29 00:16:40

○A188.114.97.02026-10-17 → 2026-10-17 · 3 obs

● 2026-10-17 07:45:12
○ 2026-10-26 16:19:52
○ 2026-10-29 00:16:40

●A2606:4700:3030::6815:26022026-10-26 → 2026-10-29 · 3 obs

○ 2026-10-17 07:45:12
● 2026-10-26 16:19:52
● 2026-10-29 00:16:40

●A2606:4700:3033::ac43:d8b52026-10-26 → 2026-10-29 · 3 obs

○ 2026-10-17 07:45:12
● 2026-10-26 16:19:52
● 2026-10-29 00:16:40

○A2a06:98c1:3120::2026-10-17 → 2026-10-17 · 3 obs

● 2026-10-17 07:45:12
○ 2026-10-26 16:19:52
○ 2026-10-29 00:16:40

○A2a06:98c1:3121::2026-10-17 → 2026-10-17 · 3 obs

● 2026-10-17 07:45:12
○ 2026-10-26 16:19:52
○ 2026-10-29 00:16:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, i.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net...	-
studybystack.com	candy.ns.cloudflare.com, austin.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.79

NS records: candy.ns.cloudflare.com, austin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studybystack.com (unsigned zone)

⏱️ Timing

Total: 304ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.216.181, 104.21.38.2`
AAAA	2	`2606:4700:3030::6815:2602, 2606:4700:3033::ac43:d8b5`
NS	2	`austin.ns.cloudflare.com, candy.ns.cloudflare.com`
MX	3	`route2.mx.cloudflare.net (pri: 100), route3.mx.cloudflare.net (pri: 23)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`austin.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

studybystack.com has four IP addresses: 104.21.38.2, 172.67.216.181, 2606:4700:3030::6815:2602 and 2606:4700:3033::ac43:d8b5.

cyborg-coupons.lat, cumbres.top, deganoinversiones.com.ar plus two other host names have IP numbers in common with studybystack.com.

Name Servers

studybystack.com is delegated to two name servers: austin.ns.cloudflare.com and candy.ns.cloudflare.com.

The name server configuration of studybystack.com is shared with other domains, for instance sy3ae17xu97todq8pxmrw.workers.dev, claudioinacio.com, 7ch2dzv27v.workers.dev and two others.

studybystack.com has at least partial name server overlap with other domains, such as justonemadrid.com, tmarketmm.com, videouniverse.pages.dev and two others.

It is common to find these name servers paired with the name servers henry.ns.cloudflare.com, miki.ns.cloudflare.com, norah.ns.cloudflare.com and raegan.ns.cloudflare.com.

Hosts with 6 IP addresses each:

austin.ns.cloudflare.com resolves to 108.162.193.70, 172.64.33.70, 173.245.59.70 and 3 other IP addresses.

candy.ns.cloudflare.com resolves to 108.162.192.79, 172.64.32.79, 173.245.58.79 and 3 other IP addresses.

Mail Servers

studybystack.com has three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

At least some of the mail servers used by studybystack.com are shared with other domains: huphut.com, agwiki.co.uk, lesortudo.de and two others among them.

Hosts with 6 IP addresses each:

route1.mx.cloudflare.net resolves to 162.159.205.11, 162.159.205.12, 162.159.205.13 and 3 other IP addresses.

route2.mx.cloudflare.net resolves to 162.159.205.17, 162.159.205.18, 162.159.205.19 and 3 other IP addresses.

route3.mx.cloudflare.net resolves to 162.159.205.23, 162.159.205.24, 162.159.205.25 and 3 other IP addresses.

studybystack.com - robtex.com