flashback.melnicek.cz - robtex.com

flashback.melnicek.cz

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:ac29🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:27f2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.39.242Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.41🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.39.242, 172.67.172.41
IPv6 hints2606:4700:3033::ac43:ac29, 2606:4700:3035::6815:27f2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=113, name=cloudflare-ech.com

melnicek.cz

DNSSEC🔒 Signed (DS record present)
A2606:4700:3033::ac43:ac29🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:27f2🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.39.242Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.41🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSamy.ns.cloudflare.com ⭐
NSpaul.ns.cloudflare.com
MXlime.logic.cz ⭐
TXTv=spf1 mx a:lime.logic.cz ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.39.242, 172.67.172.41
IPv6 hints2606:4700:3033::ac43:ac29, 2606:4700:3035::6815:27f2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=113, name=cloudflare-ech.com
SOAamy.ns.cloudflare.comdns@cloudflare.com serial=2401626090
WOT: SAFE (61/100)

Same first word

flashback.co.uk
flashback.ai
flashback.com.co
flashback.net
flashback.fm
flashback.name
flashback.co.jp
flashback.cn
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flashback.to.it
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flashback.photography
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flashback.me
flashback.com

Similar names

flsahback.com
backflash.nl
falshback.com
backflash.net
backflash.org
backflash.se
backflash.be
backflash.com
halfbacks.com
backflash.de
backflash.name
backflash.ru
flsahback.org
bashflack.com

DNS History

8 records (4 active, 4 former)

A104.21.39.242172.67.172.412606:4700:3033::ac43:ac292606:4700:3035::6815:27f2188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●A104.21.39.2422026-02-17 → 2026-04-29 · 5 obs
● 2026-02-17 21:59:52
● 2026-03-16 00:57:44
○ 2026-03-21 14:39:18
● 2026-04-10 21:23:30
● 2026-04-29 02:33:14
●A172.67.172.412026-02-17 → 2026-04-29 · 5 obs
● 2026-02-17 21:59:52
● 2026-03-16 00:57:44
○ 2026-03-21 14:39:18
● 2026-04-10 21:23:30
● 2026-04-29 02:33:14
○A188.114.96.02026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-16 00:57:44
● 2026-03-21 14:39:18
○ 2026-04-10 21:23:30
○ 2026-04-29 02:33:14
○A188.114.97.02026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-16 00:57:44
● 2026-03-21 14:39:18
○ 2026-04-10 21:23:30
○ 2026-04-29 02:33:14
●A2606:4700:3033::ac43:ac292026-02-17 → 2026-04-29 · 5 obs
● 2026-02-17 21:59:52
● 2026-03-16 00:57:44
○ 2026-03-21 14:39:18
● 2026-04-10 21:23:30
● 2026-04-29 02:33:14
●A2606:4700:3035::6815:27f22026-02-17 → 2026-04-29 · 5 obs
● 2026-02-17 21:59:52
● 2026-03-16 00:57:44
○ 2026-03-21 14:39:18
● 2026-04-10 21:23:30
● 2026-04-29 02:33:14
○A2a06:98c1:3120::2026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-16 00:57:44
● 2026-03-21 14:39:18
○ 2026-04-10 21:23:30
○ 2026-04-29 02:33:14
○A2a06:98c1:3121::2026-03-21 → 2026-03-21 · 4 obs
○ 2026-03-16 00:57:44
● 2026-03-21 14:39:18
○ 2026-04-10 21:23:30
○ 2026-04-29 02:33:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz-
melnicek.czamy.ns.cloudflare.com, paul.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.135

NS records: amy.ns.cloudflare.com, paul.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 757ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.172.41, 104.21.39.242
AAAA22606:4700:3033::ac43:ac29, 2606:4700:3035::6815:27f2
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

flashback.melnicek.cz points to four IP numbers: 2606:4700:3033::ac43:ac29, 2606:4700:3035::6815:27f2, 104.21.39.242 and 172.67.172.41.

Other host names, for instance stratpass.xyz, hnyuanwei.com, tetrd.app, stufman.shop and vinspy.com share IP numbers with flashback.melnicek.cz.