rcm.dev - dns.ninja

rcm.dev

DNSSEC🔒 Signed (DS record present)
A2606:4700:3032::ac43:b103🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:239b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.35.155Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.177.3🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSart.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b66🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A2803:f800:50::6ca2:c166🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRart.ns.cloudflare.com
A2a06:98c1:50::ac40:2166🇺🇸 Cloudflare2a06:98c1:50::/45
PTRart.ns.cloudflare.com
A108.162.193.102🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A172.64.33.102🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
A173.245.59.102🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRart.ns.cloudflare.com
NSrita.ns.cloudflare.com
A2606:4700:50::adf5:3a8c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A2803:f800:50::6ca2:c08c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRrita.ns.cloudflare.com
A2a06:98c1:50::ac40:208c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRrita.ns.cloudflare.com
A108.162.192.140🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A172.64.32.140🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
A173.245.58.140🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRrita.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-04.messagingengine.com
TXTv=spf1 include:spf.messagingengine.com ?all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.35.155, 172.67.177.3
IPv6 hints2606:4700:3032::ac43:b103, 2606:4700:3034::6815:239b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=207, name=cloudflare-ech.com
SOAart.ns.cloudflare.comdns@cloudflare.com serial=2407207259

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

rcm.nl
rcm.guru
rcm.us
rcm.web.id
rcm.ac.in
rcm.no
rcm.org.uk
rcm.nu
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Similar names

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cmr.institute
crm.marketing
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cmr.dj
cmr.pl
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cmr.fm
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mcr.lt
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rmc.gov.in
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mrc.cc
mrc.ee
crm.lt
crm.one
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rmc.mn
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crm.bz
crm.cr
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mcr.cz
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mcr.co
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cmr.lt
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crm.pub
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mrc.ac.uk
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cmr.agency
crm.su
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crm.org.pl
crm.gd
crm.gent
mrc.in
rmc.kh.ua
rmc.org
cmr.com
mcr.live
crm.bayern
rmc.fr
crm.se
crm.pl
rmc.me
cmr.kz
crm.cc
cmr.fi
mrc.cz
crm.tw
mcr.ro
crm.sk
mcr.com.au
cmr.gob.ve
mcr.wtf

DNS History

13 records (8 active, 5 former)

NSart.ns.cloudflare.comrita.ns.cloudflare.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comA104.21.35.155172.67.177.32606:4700:3032::ac43:b1032606:4700:3034::6815:239b188.114.96.0188.114.97.02606:4700:3031::ac43:b1032a06:98c1:3120::2a06:98c1:3121::
●NSart.ns.cloudflare.com2026-03-01 → 2026-06-21 · 2 obs
● 2026-03-01 06:05:52
● 2026-06-21 08:55:26
●NSrita.ns.cloudflare.com2026-03-01 → 2026-06-21 · 2 obs
● 2026-03-01 06:05:52
● 2026-06-21 08:55:26
●MXin1-smtp.messagingengine.com2026-03-01 → 2026-06-21 · 2 obs
● 2026-03-01 06:05:52
● 2026-06-21 08:55:26
●MXin2-smtp.messagingengine.com2026-03-01 → 2026-06-21 · 2 obs
● 2026-03-01 06:05:52
● 2026-06-21 08:55:26
●A104.21.35.1552026-03-01 → 2026-06-21 · 5 obs
● 2026-03-01 06:05:52
● 2026-03-26 20:46:26
○ 2026-04-02 02:01:10
● 2026-04-06 08:38:08
● 2026-06-21 08:55:26
●A172.67.177.32026-03-01 → 2026-06-21 · 5 obs
● 2026-03-01 06:05:52
● 2026-03-26 20:46:26
○ 2026-04-02 02:01:10
● 2026-04-06 08:38:08
● 2026-06-21 08:55:26
○A188.114.96.02026-04-02 → 2026-04-02 · 4 obs
○ 2026-03-26 20:46:26
● 2026-04-02 02:01:10
○ 2026-04-06 08:38:08
○ 2026-06-21 08:55:26
○A188.114.97.02026-04-02 → 2026-04-02 · 4 obs
○ 2026-03-26 20:46:26
● 2026-04-02 02:01:10
○ 2026-04-06 08:38:08
○ 2026-06-21 08:55:26
○A2606:4700:3031::ac43:b1032026-03-01 → 2026-05-27 · 6 obs
● 2026-03-01 06:05:52
● 2026-03-26 20:46:26
○ 2026-04-02 02:01:10
● 2026-04-06 08:38:08
● 2026-05-27 10:20:12
○ 2026-06-21 08:55:26
●A2606:4700:3032::ac43:b1032026-06-21 → 2026-06-21 · 2 obs
○ 2026-05-27 10:20:12
● 2026-06-21 08:55:26
●A2606:4700:3034::6815:239b2026-03-01 → 2026-06-21 · 5 obs
● 2026-03-01 06:05:52
● 2026-03-26 20:46:26
○ 2026-04-02 02:01:10
● 2026-04-06 08:38:08
● 2026-06-21 08:55:26
○A2a06:98c1:3120::2026-04-02 → 2026-04-02 · 4 obs
○ 2026-03-26 20:46:26
● 2026-04-02 02:01:10
○ 2026-04-06 08:38:08
○ 2026-06-21 08:55:26
○A2a06:98c1:3121::2026-04-02 → 2026-04-02 · 4 obs
○ 2026-03-26 20:46:26
● 2026-04-02 02:01:10
○ 2026-04-06 08:38:08
○ 2026-06-21 08:55:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...10 records
rcm.devart.ns.cloudflare.com, rita.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.140

NS records: art.ns.cloudflare.com, rita.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 598ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.177.3, 104.21.35.155
AAAA22606:4700:3034::6815:239b, 2606:4700:3032::ac43:b103
NS2art.ns.cloudflare.com, rita.ns.cloudflare.com
MX2in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)
TXT1v=spf1 include:spf.messagingengine.com ?
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1art.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 10

Out-of-bailiwick: 10 (ns-tld1.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...)

Analysis

IP Addresses

rcm.dev points to the four IP addresses 104.21.35.155, 172.67.177.3, 2606:4700:3032::ac43:b103 and 2606:4700:3034::6815:239b.

smartcfr.com, web.teknikunkris.ac.id, goldendragon.id and two other host names share IP numbers with rcm.dev.

Name Servers

DNS delegation for rcm.dev points to two name servers: art.ns.cloudflare.com and rita.ns.cloudflare.com.

rcm.dev uses the same name servers as several other domains — among them classicrocklounge.com, erpcinc.com, ichun.us and two more.

There is at least partial name server overlap between rcm.dev and other domains — (0x706f726e)o-zdarma.com, gas-stations-guide.com, idahoavalanche.com and two more among them.

These name servers are routinely deployed together with the name servers kara.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

art.ns.cloudflare.com has IP addresses 108.162.193.102, 172.64.33.102 and 173.245.59.102, plus 3 other.

rita.ns.cloudflare.com has IP addresses 108.162.192.140, 172.64.32.140 and 173.245.58.140, plus 3 other.

Mail Servers

Mail for rcm.dev is handled by two mail servers — in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

rcm.dev uses an identical mail server configuration to several other domains — among them doublethree.digital, antosh.org, davidcel.is and two more.

rcm.dev has mail servers in common with other domains — for example bj13.us, thebedroom.co.nz and 891657.com.

Hostnames that resolve to 8 IP addresses:

in1-smtp.messagingengine.com has IP addresses 103.168.172.216, 103.168.172.217 and 103.168.172.218, plus 5 other.

Hosts that point to four IP numbers:

in2-smtp.messagingengine.com resolves to four IP addresses — 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.