studyzone.app - dns.ninja

studyzone.app

DNSSEC⚠️ Not signed
A199.36.158.100🇺🇸 Fastly199.36.158.0/24 Google
NSmark.ns.cloudflare.com
A2606:4700:58::adf5:3b82🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmark.ns.cloudflare.com
A2803:f800:50::6ca2:c182🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmark.ns.cloudflare.com
A2a06:98c1:50::ac40:2182🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmark.ns.cloudflare.com
A108.162.193.130🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmark.ns.cloudflare.com
A172.64.33.130🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmark.ns.cloudflare.com
A173.245.59.130🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmark.ns.cloudflare.com
NSrosalyn.ns.cloudflare.com
A2606:4700:50::a29f:263b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A2803:f800:50::6ca2:c23b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrosalyn.ns.cloudflare.com
A2a06:98c1:50::ac40:223b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrosalyn.ns.cloudflare.com
A108.162.194.59🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A162.159.38.59Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
A172.64.34.59🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrosalyn.ns.cloudflare.com
MXaspmx.l.google.com
A2607:f8b0:4004:c17::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbl-in-f26.1e100.net
A142.251.163.27🇺🇸 Google142.251.163.0/24
PTRwv-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTgoogle-site-verification=lF8mZqWOMnkTcZKt5Nav-VvCB33deKjqvudSWJOv3Js
TXThosting-site=learnzone-app
TXTv=spf1 include:_spf.google.com -all
SOAmark.ns.cloudflare.comdns@cloudflare.com serial=2407854299

app

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427
🔒 HSTS Preload (+subdomains)

Subdomains

Same first word

DNS History

8 records (8 active, 0 former)

NSmark.ns.cloudflare.comrosalyn.ns.cloudflare.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comA199.36.158.100
NSmark.ns.cloudflare.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
NSrosalyn.ns.cloudflare.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
MXalt1.aspmx.l.google.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
MXalt2.aspmx.l.google.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
MXalt3.aspmx.l.google.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
MXalt4.aspmx.l.google.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
MXaspmx.l.google.com2026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12
A199.36.158.1002026-05-11 → 2026-07-01 · 2 obs
● 2026-05-11 22:04:26
● 2026-07-01 08:57:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...10 records
studyzone.appmark.ns.cloudflare.com, rosalyn.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.130

NS records: mark.ns.cloudflare.com, rosalyn.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studyzone.app (unsigned zone)

⏱️ Timing

Total: 2573ms | Queries: -

📄 Records

TypeCountSample Data
A1199.36.158.100
NS2mark.ns.cloudflare.com, rosalyn.ns.cloudflare.com
MX5aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...
TXT3google-site-verification=lF8mZqWOMnkTcZK, hosting-site=learnzone-app...
SOA1mark.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...)

Analysis

Hierarchy

studyzone.app is the parent zone for api.studyzone.app.

IP Addresses

studyzone.app has exactly one IP address — 199.36.158.100.

svg-follow.web.app, www.ghost-link.firebaseapp.com, dsc-fuo.firebaseapp.com plus two other host names have IP numbers in common with studyzone.app.

Name Servers

studyzone.app is served by two delegated name servers, mark.ns.cloudflare.com and rosalyn.ns.cloudflare.com.

The name server configuration of studyzone.app is shared with other domains, for instance aeroarts.co.uk, uieevdg.workers.dev, kcwc.org.uk and two others.

studyzone.app partially shares its NS delegation with several other domains, including seafishingtools.com, katrande.org, ewok.tv and two others.

These name servers often co-occur with the name servers princess.ns.cloudflare.com.

Hosts with 6 IP addresses each:

mark.ns.cloudflare.com carries IP addresses 108.162.193.130, 172.64.33.130 and 173.245.59.130, with 3 other addresses beyond those.

rosalyn.ns.cloudflare.com carries IP addresses 108.162.194.59, 162.159.38.59 and 172.64.34.59, with 3 other addresses beyond those.

Mail Servers

studyzone.app is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by studyzone.app are shared with other domains: ns500671.ns500731.ns500731.ns500671.ns500742.ns500731.ns500731.ns500704.ns500649.ns500291.ns500142.lusty(0x736c7574)z.com, ns500698.ns500698.ns500698.ns500698.ns500758.ns500736.ns500735.ns500736.ns500576.ns500708.ns500576.ns500576.ns500576.ns500652.trackreceptor.com, ns500734.ns500734.ns500693.ns500699.ns500734.ns500693.ns500693.ns500693.ns500699.ns500588.ns500588.ns500588.ns500588.ns500632.ns500588.ns500578.ns500110.dtrkdll.com and two others among them.

These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com maps to two IP addresses — 142.251.163.27 and 2607:f8b0:4004:c17::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1b.

alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1b.