c-oa.dev - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

c-oa.dev

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:bdaf🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:394d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.77Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.175🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdavid.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b98🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A2803:f800:50::6ca2:c198🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdavid.ns.cloudflare.com
A2a06:98c1:50::ac40:2198🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdavid.ns.cloudflare.com
A108.162.193.152🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A172.64.33.152🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A173.245.59.152🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
NSkeyla.ns.cloudflare.com
A2606:4700:50::a29f:26aa🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeyla.ns.cloudflare.com
A2803:f800:50::6ca2:c2aa🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkeyla.ns.cloudflare.com
A2a06:98c1:50::ac40:22aa🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkeyla.ns.cloudflare.com
A108.162.194.170🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeyla.ns.cloudflare.com
A162.159.38.170Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeyla.ns.cloudflare.com
A172.64.34.170🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeyla.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
A103.168.172.216🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com(20)
A202.12.124.216TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-01.messagingengine.com
A202.12.124.217TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-02.messagingengine.com
A202.12.124.218TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street
PTRstl-mx-03.messagingengine.com
A202.12.124.219TELX-AS151847202.12.124.0/24 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 hints104.21.57.77, 172.67.189.175
IPv6 hints2606:4700:3031::ac43:bdaf, 2606:4700:3035::6815:394d
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com
SOAdavid.ns.cloudflare.comdns@cloudflare.com serial=2416437973

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

c-oa.com
c-oa.info
c-oa.dev

Similar names

ao-c.com
ao-c.de
ao-c.fr
a-co.uk
a-co.de
ac-o.com.au
co-a.de
a-co.me
co-a.top
ao-c.io
a-co.fr
oc-a.pages.dev
a-oc.jp
o-ca.com
a-co.eu
ao-c.jp
ao-c.eu
ao-c.xyz
a-co.jp
ca-o.com
co-a.cl
co-a.xin
co-a.ch
co-a.site
a-co.in
co-a.net
co-a.ph
a-co.sk
co-a.live
c-ao.com
a-co.co
ao-c.net
a-oc.eu
a-co.com
ao-c.store
oa-c.fr
a-oc.com
a-co.ge
a-co.pl
co-a.org
a-co.xyz
co-a.com
c-ao.ch
ao-c.ca
a-oc.net
ac-o.com
c-ao.net.ph
oa-c.co.uk
ca-o.ph
oc-a.ph
ac-o.de
a-co.net
o-ac.jp
a-co.se
a-co.biz
co-a.org.ph
ao-c.life
oa-c.jp
c-ao.org
c-ao.net
a-co.co.jp
oc-a.com
o-ca.jp
ao-c.org
ac-o.site
a-co.my.id
a-co.homes
ao-c.biz
a-co.ir
a-co.ru

Previous names

c-iot.dev
c-its.dev
c-j.dev
c-k.dev
c-lab.dev
c-labs.dev
c-learn.dev
c-logs.dev
c-luo.dev
c-mail.dev
c-metcalf.dev
c-montoya.dev
c-morette.dev
c-n.dev
c-na.dev
c-nec.dev
c-net.dev
c-nickel.dev
c-note.dev
c-o.dev

Next names

c-ops.dev
c-orellana.dev
c-oss.dev
c-otter.dev
c-p.dev
c-pentest.dev
c-pki.dev
c-profile.dev
c-punks.dev
c-r.dev
c-register.dev
c-s.dev
c-sharp.dev
c-shop.dev
c-signups.dev
c-social.dev
c-soft.dev
c-span.dev
c-spot.dev

DNS History

8 records (8 active, 0 former)

NSdavid.ns.cloudflare.comkeyla.ns.cloudflare.comMXin1-smtp.messagingengine.comin2-smtp.messagingengine.comA104.21.57.77172.67.189.1752606:4700:3031::ac43:bdaf2606:4700:3035::6815:394d
●NSdavid.ns.cloudflare.com2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●NSkeyla.ns.cloudflare.com2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●MXin1-smtp.messagingengine.com2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●MXin2-smtp.messagingengine.com2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●A104.21.57.772026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●A172.67.189.1752026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●A2606:4700:3031::ac43:bdaf2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24
●A2606:4700:3035::6815:394d2026-09-04 → 2026-10-21 · 2 obs
● 2026-09-04 14:42:36
● 2026-10-21 04:16:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld3.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com...-
c-oa.devdavid.ns.cloudflare.com, keyla.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.170

NS records: david.ns.cloudflare.com, keyla.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c-oa.dev (unsigned zone)

⏱️ Timing

Total: 628ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.189.175, 104.21.57.77
AAAA22606:4700:3035::6815:394d, 2606:4700:3031::ac43:bdaf
NS2david.ns.cloudflare.com, keyla.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",
SOA1david.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

c-oa.dev resolves to four IP addresses: 104.21.57.77, 172.67.189.175, 2606:4700:3031::ac43:bdaf and 2606:4700:3035::6815:394d.

Among the host names that share IP numbers with c-oa.dev are fengnanjob.com, timber-brackets.com, 888-login.com and two others.

Name Servers

c-oa.dev uses two name servers for its delegation: david.ns.cloudflare.com and keyla.ns.cloudflare.com.

c-oa.dev has the same name server delegation as a number of other domains, such as utokkies.workers.dev, momenta-6ii.pages.dev, geniusrepairservice.com and two more.

c-oa.dev shares at least some of its name servers with other domains, including fdquz627tt.workers.dev, 784285711.xyz, pusing-kiri-pusing-kanan.pages.dev and two others.

These name servers are frequently paired with the name servers aida.ns.cloudflare.com and nero.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname david.ns.cloudflare.com directs to 108.162.193.152, 172.64.33.152 and 173.245.59.152 along with 3 other IP addresses.

Hostname keyla.ns.cloudflare.com directs to 108.162.194.170, 162.159.38.170 and 172.64.34.170 along with 3 other IP addresses.

Mail Servers

The MX records for c-oa.dev point to two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

c-oa.dev has the same mail server arrangement as a number of other domains, for example bradywilliams.com, magg.io, dika.io and two more.

Host names resolving to 8 IP numbers:

Hostname in1-smtp.messagingengine.com directs to 103.168.172.216, 103.168.172.217 and 103.168.172.218 along with 5 other IP addresses.

Hosts pointing to four IP addresses:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.