iscool.app - dns.ninja

iscool.app

DNSSEC🔒 Signed (DS record present)
A2606:4700:3036::6815:5942🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:9ce5🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.89.66Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.156.229🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdorthy.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3af9🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A2803:f800:50::6ca2:c0f9🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdorthy.ns.cloudflare.com
A2a06:98c1:50::ac40:20f9🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdorthy.ns.cloudflare.com
A108.162.192.249🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A172.64.32.249🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
A173.245.58.249🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdorthy.ns.cloudflare.com
NSsean.ns.cloudflare.com
A2606:4700:58::adf5:3be7🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A2803:f800:50::6ca2:c1e7🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsean.ns.cloudflare.com
A2a06:98c1:50::ac40:21e7🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsean.ns.cloudflare.com
A108.162.193.231🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A172.64.33.231🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
A173.245.59.231🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsean.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.89.66, 172.67.156.229
IPv6 hints2606:4700:3036::6815:5942, 2606:4700:3037::ac43:9ce5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=4, name=cloudflare-ech.com
SOAdorthy.ns.cloudflare.comdns@cloudflare.com serial=2409355950

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)

Same first word

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coolsi.ca
ocisol.com
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lisoco.com

DNS History

8 records (6 active, 2 former)

NSdorthy.ns.cloudflare.comsean.ns.cloudflare.comA104.21.89.66172.67.156.2292606:4700:3036::6815:59422606:4700:3037::ac43:9ce52606:4700:3031::ac43:9ce52606:4700:3034::6815:5942
●NSdorthy.ns.cloudflare.com2026-03-16 → 2026-07-15 · 2 obs
● 2026-03-16 16:52:42
● 2026-07-15 09:23:48
●NSsean.ns.cloudflare.com2026-03-16 → 2026-07-15 · 2 obs
● 2026-03-16 16:52:42
● 2026-07-15 09:23:48
●A104.21.89.662026-03-16 → 2026-07-15 · 2 obs
● 2026-03-16 16:52:42
● 2026-07-15 09:23:48
●A172.67.156.2292026-03-16 → 2026-07-15 · 2 obs
● 2026-03-16 16:52:42
● 2026-07-15 09:23:48
○A2606:4700:3031::ac43:9ce52026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 16:52:42
○ 2026-07-15 09:23:48
○A2606:4700:3034::6815:59422026-03-16 → 2026-03-16 · 2 obs
● 2026-03-16 16:52:42
○ 2026-07-15 09:23:48
●A2606:4700:3036::6815:59422026-07-15 → 2026-07-15 · 2 obs
○ 2026-03-16 16:52:42
● 2026-07-15 09:23:48
●A2606:4700:3037::ac43:9ce52026-07-15 → 2026-07-15 · 2 obs
○ 2026-03-16 16:52:42
● 2026-07-15 09:23:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
appns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...-
iscool.appdorthy.ns.cloudflare.com, sean.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.231

NS records: dorthy.ns.cloudflare.com, sean.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 492ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.89.66, 172.67.156.229
AAAA22606:4700:3037::ac43:9ce5, 2606:4700:3036::6815:5942
NS2dorthy.ns.cloudflare.com, sean.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dorthy.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

iscool.app resolves to four IP addresses: 104.21.89.66, 172.67.156.229, 2606:4700:3036::6815:5942 and 2606:4700:3037::ac43:9ce5.

Among the host names that share IP numbers with iscool.app are pixiesetmail.org, rtpgacor77naik.xyz, tapisdeluxe.com and two others.

Name Servers

DNS delegation for iscool.app points to two name servers: dorthy.ns.cloudflare.com and sean.ns.cloudflare.com.

iscool.app has the same name server delegation as a number of other domains, such as diariocripto.com, jornadaedu.com.br, hastosee.com and two more.

iscool.app has at least partial name server overlap with other domains, such as whsdzx.net, aversionsband.com, alnpet.com and two others.

These name servers tend to appear together with the name servers luciana.ns.cloudflare.com, rayden.ns.cloudflare.com and abdullah.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

dorthy.ns.cloudflare.com has IP addresses 108.162.192.249, 172.64.32.249 and 173.245.58.249, plus 3 other.

sean.ns.cloudflare.com has IP addresses 108.162.193.231, 172.64.33.231 and 173.245.59.231, plus 3 other.