readfirst.dev - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

readfirst.dev

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:2adc🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:d26d🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.42.220Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.109🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSace.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c41🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRace.ns.cloudflare.com
A2803:f800:50::6ca2:c341🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRace.ns.cloudflare.com
A2a06:98c1:50::ac40:2341🇺🇸 Cloudflare2a06:98c1:50::/45
PTRace.ns.cloudflare.com
A108.162.195.65🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRace.ns.cloudflare.com
A162.159.44.65Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRace.ns.cloudflare.com
A172.64.35.65🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRace.ns.cloudflare.com
NScheryl.ns.cloudflare.com
A2606:4700:50::adf5:3a53🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A2803:f800:50::6ca2:c053🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcheryl.ns.cloudflare.com
A2a06:98c1:50::ac40:2053🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcheryl.ns.cloudflare.com
A108.162.192.83🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A172.64.32.83🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
A173.245.58.83🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcheryl.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.42.220, 172.67.210.109
IPv6 hints2606:4700:3034::6815:2adc, 2606:4700:3037::ac43:d26d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=203, name=cloudflare-ech.com
SOAace.ns.cloudflare.comdns@cloudflare.com serial=2417838124

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

readfirst.com
readfirst.in
readfirst.ai
readfirst.us
readfirst.cn
readfirst.dev
readfirst.de
readfirst.org
readfirst.workers.dev
readfirst.nl

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Previous names

readb.dev
readback.dev
readbackcli.dev
readbook.dev
readcv.dev
readdir.dev
reade.dev
readease.dev
readeem.dev
readen.dev
reader-revenue-demo.dev
reader.dev
readeratlarge.dev
readerloft.dev
readerly.dev
readers.dev
readersdige.dev
readersdigestshop.dev
readex.dev
readfast.dev

Next names

readflow.dev
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readframe.dev
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readgraph.dev
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readian.dev
readiant.dev
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readiness.dev
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DNS History

12 records (6 active, 6 former)

NSace.ns.cloudflare.comcheryl.ns.cloudflare.comA104.21.42.220172.67.210.1092606:4700:3034::6815:2adc2606:4700:3037::ac43:d26d188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::4
●NSace.ns.cloudflare.com2026-10-18 → 2026-10-31 · 2 obs
● 2026-10-18 19:13:46
● 2026-10-31 19:04:16
●NScheryl.ns.cloudflare.com2026-10-18 → 2026-10-31 · 2 obs
● 2026-10-18 19:13:46
● 2026-10-31 19:04:16
●A104.21.42.2202026-10-20 → 2026-10-31 · 7 obs
○ 2026-10-18 19:13:46
● 2026-10-20 22:45:12
○ 2026-10-26 00:12:32
● 2026-10-26 01:29:46
○ 2026-10-26 02:44:08
● 2026-10-27 01:48:34
● 2026-10-31 19:04:16
●A172.67.210.1092026-10-20 → 2026-10-31 · 7 obs
○ 2026-10-18 19:13:46
● 2026-10-20 22:45:12
○ 2026-10-26 00:12:32
● 2026-10-26 01:29:46
○ 2026-10-26 02:44:08
● 2026-10-27 01:48:34
● 2026-10-31 19:04:16
○A188.114.96.02026-10-18 → 2026-10-26 · 7 obs
● 2026-10-18 19:13:46
○ 2026-10-20 22:45:12
● 2026-10-26 00:12:32
○ 2026-10-26 01:29:46
● 2026-10-26 02:44:08
○ 2026-10-27 01:48:34
○ 2026-10-31 19:04:16
○A188.114.97.02026-10-18 → 2026-10-26 · 7 obs
● 2026-10-18 19:13:46
○ 2026-10-20 22:45:12
● 2026-10-26 00:12:32
○ 2026-10-26 01:29:46
● 2026-10-26 02:44:08
○ 2026-10-27 01:48:34
○ 2026-10-31 19:04:16
●A2606:4700:3034::6815:2adc2026-10-20 → 2026-10-31 · 7 obs
○ 2026-10-18 19:13:46
● 2026-10-20 22:45:12
○ 2026-10-26 00:12:32
● 2026-10-26 01:29:46
○ 2026-10-26 02:44:08
● 2026-10-27 01:48:34
● 2026-10-31 19:04:16
●A2606:4700:3037::ac43:d26d2026-10-20 → 2026-10-31 · 7 obs
○ 2026-10-18 19:13:46
● 2026-10-20 22:45:12
○ 2026-10-26 00:12:32
● 2026-10-26 01:29:46
○ 2026-10-26 02:44:08
● 2026-10-27 01:48:34
● 2026-10-31 19:04:16
○A2a06:98c1:3120::2026-10-18 → 2026-10-26 · 5 obs
● 2026-10-18 19:13:46
○ 2026-10-20 22:45:12
● 2026-10-26 00:12:32
○ 2026-10-26 01:29:46
○ 2026-10-31 19:04:16
○A2a06:98c1:3120::42026-10-26 → 2026-10-26 · 4 obs
○ 2026-10-26 01:29:46
● 2026-10-26 02:44:08
○ 2026-10-27 01:48:34
○ 2026-10-31 19:04:16
○A2a06:98c1:3121::2026-10-18 → 2026-10-26 · 5 obs
● 2026-10-18 19:13:46
○ 2026-10-20 22:45:12
● 2026-10-26 00:12:32
○ 2026-10-26 01:29:46
○ 2026-10-31 19:04:16
○A2a06:98c1:3121::42026-10-26 → 2026-10-26 · 4 obs
○ 2026-10-26 01:29:46
● 2026-10-26 02:44:08
○ 2026-10-27 01:48:34
○ 2026-10-31 19:04:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com...-
readfirst.devace.ns.cloudflare.com, cheryl.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.83

NS records: ace.ns.cloudflare.com, cheryl.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for readfirst.dev (unsigned zone)

⏱️ Timing

Total: 619ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.42.220, 172.67.210.109
AAAA22606:4700:3037::ac43:d26d, 2606:4700:3034::6815:2adc
NS2ace.ns.cloudflare.com, cheryl.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ace.ns.cloudflare.com dns.cloudflare.com

Analysis

IP Addresses

readfirst.dev resolves to four IP addresses: 104.21.42.220, 172.67.210.109, 2606:4700:3034::6815:2adc and 2606:4700:3037::ac43:d26d.

Additional host names — marbo86.ink, casino-vegasino.com, season-ventuals.live and two others — share IP numbers with readfirst.dev.

Name Servers

readfirst.dev uses two name servers for its delegation: ace.ns.cloudflare.com and cheryl.ns.cloudflare.com.

readfirst.dev shares its name server setup with other domains, including schiedow.space, eluxir-mit.shop, rolmeister.es and two others.

readfirst.dev partially shares its NS delegation with several other domains, including lucky7.co.nl, kitchenia.app, ballavalla.com and two others.

The name servers violet.ns.cloudflare.com, sevki.ns.cloudflare.com, logan.ns.cloudflare.com and paislee.ns.cloudflare.com are often found in use alongside these name servers.

Host names with 6 IP numbers:

Hostname ace.ns.cloudflare.com directs to 108.162.195.65, 162.159.44.65 and 172.64.35.65 along with 3 other IP addresses.

Hostname cheryl.ns.cloudflare.com directs to 108.162.192.83, 172.64.32.83 and 173.245.58.83 along with 3 other IP addresses.