flex.dev - robtex.com

flex.dev

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5213🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c16e🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.82.19Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.193.110🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleland.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c08🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleland.ns.cloudflare.com
A2803:f800:50::6ca2:c308🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleland.ns.cloudflare.com
A2a06:98c1:50::ac40:2308🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleland.ns.cloudflare.com
A108.162.195.8🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleland.ns.cloudflare.com
A162.159.44.8Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleland.ns.cloudflare.com
A172.64.35.8🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleland.ns.cloudflare.com
NSnelly.ns.cloudflare.com
A2606:4700:50::adf5:3ad1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnelly.ns.cloudflare.com
A2803:f800:50::6ca2:c0d1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnelly.ns.cloudflare.com
A2a06:98c1:50::ac40:20d1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnelly.ns.cloudflare.com
A108.162.192.209🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnelly.ns.cloudflare.com
A172.64.32.209🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnelly.ns.cloudflare.com
A173.245.58.209🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnelly.ns.cloudflare.com
MXmail1.smtp99.com ⭐
A45.56.105.37🇺🇸 AKAMAI-LINODE-AP45.56.96.0/20 Akamai Technologies
PTR45-56-105-37.ip.linodeusercontent.com
MXmail2.smtp99.com ⭐
A139.144.239.131🇺🇸 AKAMAI-LINODE-AP139.144.232.0/21 Akamai Technologies
PTR139-144-239-131.ip.linodeusercontent.com
TXTgoogle-gws-recovery-domain-verification=53804401
TXTgoogle-site-verification=BANftXLjFMe1GcGNPa33_FsrtQ_EH6OrbrgjZCfssNc
TXTgoogle-site-verification=_Nlv49tYRv54mefOXmSQk1L6MIPrDIbcagFN39ZNylQ
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.82.19, 172.67.193.110
IPv6 hints2606:4700:3031::6815:5213, 2606:4700:3037::ac43:c16e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=93, name=cloudflare-ech.com
SOAleland.ns.cloudflare.comdns@cloudflare.com serial=2402476573

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

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Similar names

xelf.io
xelf.info
xfel.jp
lefx.de
lfex.com
exlf.cn
felx.ru
felx.org
elfx.de
xfel.eu
xfel.org
lefx.com
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xelf.me
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xfel.net
fxel.cn
xfel.pl
xelf.ru
xelf.de
xfel.de
exfl.com
fexl.com
eflx.com
exfl.cn

DNS History

10 records (8 active, 2 former)

NSleland.ns.cloudflare.comnelly.ns.cloudflare.comMXmail1.smtp99.commail2.smtp99.comA104.21.82.19172.67.193.1102606:4700:3031::6815:52132606:4700:3037::ac43:c16e172.64.80.12606:4700:130:436c:6f75:6466:6c61:7265
●NSleland.ns.cloudflare.com2026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
●NSnelly.ns.cloudflare.com2026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
●MXmail1.smtp99.com2026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
●MXmail2.smtp99.com2026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
●A104.21.82.192026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
○A172.64.80.12026-03-15 → 2026-04-24 · 2 obs
○ 2026-03-15 20:12:30
○ 2026-04-24 04:07:26
●A172.67.193.1102026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-15 → 2026-04-24 · 2 obs
○ 2026-03-15 20:12:30
○ 2026-04-24 04:07:26
●A2606:4700:3031::6815:52132026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26
●A2606:4700:3037::ac43:c16e2026-03-15 → 2026-04-24 · 2 obs
● 2026-03-15 20:12:30
● 2026-04-24 04:07:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...-
flex.devnelly.ns.cloudflare.com, leland.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.8

NS records: nelly.ns.cloudflare.com, leland.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for flex.dev (unsigned zone)

⏱️ Timing

Total: 714ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.82.19, 172.67.193.110
AAAA22606:4700:3037::ac43:c16e, 2606:4700:3031::6815:5213
NS2leland.ns.cloudflare.com, nelly.ns.cloudflare.com
MX2mail1.smtp99.com (pri: 0), mail2.smtp99.com (pri: 0)
TXT4google-gws-recovery-domain-verification=, google-site-verification=BANftXLjFMe1GcG...
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1leland.ns.cloudflare.com dns.cloudflare.

Analysis

IP Addresses

Four IP numbers are pointed to by flex.dev: 2606:4700:3031::6815:5213, 2606:4700:3037::ac43:c16e, 104.21.82.19 and 172.67.193.110.

other host names including getrileynow.com, 477pp.com, helpassignmentonline.com, jali.in and wtf55-games.bet share IP numbers with flex.dev.

Name Servers

flex.dev is delegated to two name servers leland.ns.cloudflare.com and nelly.ns.cloudflare.com.

flex.dev shares the same name server setup as other domains, for instance (0x706f726e)appgames.cc, jerkdolls.com, (0x706f726e)gamesios.com, bestfreevr(0x706f726e)games.com and violentstimulation.com.

flex.dev at least partially shares name servers with other domains, for instance eclipsarapeduli.com, 5a298ee1106e53ec.com, 6percentqualitycapitalconnect.info, elby.dk and qhirta.com.

these name servers are often used together with alberto.ns.cloudflare.com, elma.ns.cloudflare.com, armfazh.ns.cloudflare.com and fay.ns.cloudflare.com.

Host names with six IP numbers:

Host name leland.ns.cloudflare.com points to: 2606:4700:58::a29f:2c08, 2803:f800:50::6ca2:c308, 2a06:98c1:50::ac40:2308, 108.162.195.8, 162.159.44.8 and 172.64.35.8.

Host name nelly.ns.cloudflare.com points to: 2606:4700:50::adf5:3ad1, 2803:f800:50::6ca2:c0d1, 2a06:98c1:50::ac40:20d1, 108.162.192.209, 172.64.32.209 and 173.245.58.209.

Mail Servers

Two mail servers handle flex.dev: mail1.smtp99.com and mail2.smtp99.com.

flex.dev shares the same mail server setup as other domains, for instance gavinj.net, 800ambi.com, bkpearl.com, bm247.net and 3n0.net.

flex.dev shares some mail servers with other domains, at least partially, for instance echo360.tv, ieduhub.net, pilotqa.com, salone.it and cfainternational.com.

Host names with one IP number:

mail1.smtp99.com points to 45.56.105.37

mail2.smtp99.com points to 139.144.239.131