fstack.dev - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

fstack.dev

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a97e🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:36ea🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.54.234Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.169.126🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelma.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a9a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelma.ns.cloudflare.com
A2803:f800:50::6ca2:c09a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelma.ns.cloudflare.com
A2a06:98c1:50::ac40:209a🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelma.ns.cloudflare.com
A108.162.192.154🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.32.154🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A173.245.58.154🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSjermaine.ns.cloudflare.com
A2606:4700:58::a29f:2c9d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A2803:f800:50::6ca2:c39d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjermaine.ns.cloudflare.com
A2a06:98c1:50::ac40:239d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjermaine.ns.cloudflare.com
A108.162.195.157🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A162.159.44.157Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
A172.64.35.157🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjermaine.ns.cloudflare.com
MXfstack-dev.mail.protection.outlook.com ⭐
TXTNETORGFT15033547.onmicrosoft.com
TXTv=spf1 include:secureserver.net -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.54.234, 172.67.169.126
IPv6 hints2606:4700:3030::ac43:a97e, 2606:4700:3031::6815:36ea
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=254, name=cloudflare-ech.com
SOAelma.ns.cloudflare.comdns@cloudflare.com serial=2412527595

dev

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=1
🔒 HSTS Preload (+subdomains)

Same first word

fstack.cl
fstack.in
fstack.com.mx
fstack.co
fstack.dev
fstack.asia
fstack.net
fstack.io.vn

Similar names

factks.de
stackf.myshopify.com
kcfast.ph
stackf.com
ksfact.com
fastkc.com
ftcksa.com
kfacts.com
ktfcsa.com
ftcksa.net
ktfcsa.pages.dev

Previous names

fsixninja.dev
fsjs.dev
fsk.dev
fskab.dev
fskin.dev
fsky.dev
fsl.dev
fslab.dev
fsldk.dev
fslp.dev
fsm.dev
fsmarketing.dev
fsobral.dev
fsoc.dev
fsosa.dev
fsousa.dev
fsrn.dev
fss.dev
fssc.dev
fst.dev

Next names

fstarlabs.dev
fstats.dev
fstd.dev
fstg.dev
fstk.dev
fstleo.dev
fstm.dev
fstnetwork.dev
fstore.dev
fstring.dev
fstrudel.dev
fstudio.dev
fsu.dev
fsubal.dev
fsworks.dev
fsyn.dev
fsync.dev
fsz-hockenheimring.dev
ft-t.dev
ft7.dev

DNS History

11 records (7 active, 4 former)

NSelma.ns.cloudflare.comjermaine.ns.cloudflare.comMXfstack-dev.mail.protection.outlook.comA104.21.54.234172.67.169.1262606:4700:3030::ac43:a97e2606:4700:3031::6815:36ea188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSelma.ns.cloudflare.com2026-08-28 → 2026-08-30 · 2 obs
● 2026-08-28 11:49:58
● 2026-08-30 15:53:14
●NSjermaine.ns.cloudflare.com2026-08-28 → 2026-08-30 · 2 obs
● 2026-08-28 11:49:58
● 2026-08-30 15:53:14
●MXfstack-dev.mail.protection.outlook.com2026-08-28 → 2026-08-30 · 2 obs
● 2026-08-28 11:49:58
● 2026-08-30 15:53:14
●A104.21.54.2342026-08-30 → 2026-08-30 · 3 obs
○ 2026-08-28 11:49:58
● 2026-08-30 04:35:32
● 2026-08-30 15:53:14
●A172.67.169.1262026-08-30 → 2026-08-30 · 3 obs
○ 2026-08-28 11:49:58
● 2026-08-30 04:35:32
● 2026-08-30 15:53:14
○A188.114.96.02026-08-28 → 2026-08-28 · 3 obs
● 2026-08-28 11:49:58
○ 2026-08-30 04:35:32
○ 2026-08-30 15:53:14
○A188.114.97.02026-08-28 → 2026-08-28 · 3 obs
● 2026-08-28 11:49:58
○ 2026-08-30 04:35:32
○ 2026-08-30 15:53:14
●A2606:4700:3030::ac43:a97e2026-08-30 → 2026-08-30 · 3 obs
○ 2026-08-28 11:49:58
● 2026-08-30 04:35:32
● 2026-08-30 15:53:14
●A2606:4700:3031::6815:36ea2026-08-30 → 2026-08-30 · 3 obs
○ 2026-08-28 11:49:58
● 2026-08-30 04:35:32
● 2026-08-30 15:53:14
○A2a06:98c1:3120::2026-08-28 → 2026-08-28 · 3 obs
● 2026-08-28 11:49:58
○ 2026-08-30 04:35:32
○ 2026-08-30 15:53:14
○A2a06:98c1:3121::2026-08-28 → 2026-08-28 · 3 obs
● 2026-08-28 11:49:58
○ 2026-08-30 04:35:32
○ 2026-08-30 15:53:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...-
fstack.devjermaine.ns.cloudflare.com, elma.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.44.157

NS records: jermaine.ns.cloudflare.com, elma.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fstack.dev (unsigned zone)

⏱️ Timing

Total: 892ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.54.234, 172.67.169.126
AAAA22606:4700:3031::6815:36ea, 2606:4700:3030::ac43:a97e
NS2elma.ns.cloudflare.com, jermaine.ns.cloudflare.com
MX1fstack-dev.mail.protection.outlook.com (
TXT2NETORGFT15033547.onmicrosoft.com, v=spf1 include:secureserver.net -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1elma.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

fstack.dev directs to four IP numbers, which are 104.21.54.234, 172.67.169.126, 2606:4700:3030::ac43:a97e and 2606:4700:3031::6815:36ea.

Two other host names, along with rrdydxse.lat, 1mhdallas.com and buildasignprofessional.com, also share IP numbers with fstack.dev.

Name Servers

fstack.dev has two authoritative name servers — elma.ns.cloudflare.com and jermaine.ns.cloudflare.com.

fstack.dev shares its NS records with other domains, for example gototem.net, hosting-94c.workers.dev, mls41.top and two others.

There is at least partial name server overlap between fstack.dev and other domains — bgi0130uht.vip, usemapsea.com, yiteco9154-8619-1-iqy.pages.dev and two more among them.

These name servers tend to appear in combination with the name servers dalary.ns.cloudflare.com, joyce.ns.cloudflare.com, west.ns.cloudflare.com and jo.ns.cloudflare.com.

DNS names with 6 IP addresses:

elma.ns.cloudflare.com points to 108.162.192.154, 172.64.32.154, 173.245.58.154 and 3 other IP addresses.

jermaine.ns.cloudflare.com points to 108.162.195.157, 162.159.44.157, 172.64.35.157 and 3 other IP addresses.

Mail Servers

The sole mail server for fstack.dev is fstack-dev.mail.protection.outlook.com.