captcha.com - dns.ninja

captcha.com

DNSSEC⚠️ Not signed
A46.4.221.230🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRsmtp.captcha.com
NShydrogen.ns.hetzner.com ⭐
A2a01:4f8:0:1::add:1098🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRhydrogen.ns.hetzner.com
A213.133.100.98🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1
PTRhydrogen.ns.hetzner.com
NShelium.ns.hetzner.de
A2001:67c:192c::add:5🇩🇪 NORIS-NETWORK2001:67c:192c::/48
PTRhelium.ns.hetzner.de
A193.47.99.5🇩🇪 NORIS-NETWORK193.47.99.0/24
PTRhelium.ns.hetzner.de
NSoxygen.ns.hetzner.com
A2a01:4f8:0:1::add:2992🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRoxygen.ns.hetzner.com
A88.198.229.192🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
PTRoxygen.ns.hetzner.com
MXsmtp.captcha.com ⭐
A46.4.221.230🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRsmtp.captcha.com
TXTms-domain-verification=01836b28-3157-4bd6-85a5-662829e47dbd
TXTv=spf1 mx a:captcha.com ip4:46.4.221.230 include:spf.protection.outlook.com ...
SOAhydrogen.ns.hetzner.comdns@hetzner.com 2026-02-09 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1782585490
rank #297458 globally
rank #127822 in the tld
WOT: SAFE (38/100)
📈 Tranco rank: #65,032

Subdomains

www.captcha.com
mail.captcha.com
remote.captcha.com
smtp.captcha.com

Same first word

captcha.ru
captcha.hu
captcha.biz
captcha.at
captcha.org
captcha.run
captcha.com.co
captcha.today
captcha.webredirect.org
captcha.la
captcha.li
captcha.fr
captcha.work
captcha.cn
captcha.rocks
captcha.im
captcha.cloud
captcha.bar
captcha.cz
captcha.ca
captcha.me
captcha.fun
captcha.tv
captcha.com
captcha.site
captcha.edgecompute.app
captcha.us
captcha.es
captcha.guru
captcha.ws
captcha.de
captcha.wtf
captcha.eu
captcha.com.vn
captcha.help
captcha.pics
captcha.vn
captcha.nl
captcha.jp
captcha.cool
captcha.money
captcha.cc
captcha.club
captcha.pro
captcha.hk
captcha.net
captcha.asia
captcha.one
captcha.win
captcha.it
captcha.in
captcha.ro
captcha.co
captcha.bot
captcha.zip
captcha.id
captcha.chat
captcha.ch
captcha.cl
captcha.quest
captcha.pl
captcha.blue

Similar names

cathcap.com
capchat.com
chatcap.com
chatcpa.com
pcachat.com
pcachat.fr
chatcap.in
achatpc.fr
pacchat.com
pacatch.com
achatpc.com
cpachat.com
pcachat.net

DNS History

16 records (5 active, 11 former)

20162017201820192020202120222023202420252026NShelium.ns.hetzner.dehydrogen.ns.hetzner.comoxygen.ns.hetzner.comns1.misk.comns2.misk.comMXsmtp.captcha.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA46.4.221.230178.63.240.220188.40.113.235
●NShelium.ns.hetzner.de2026-02-16 → 2026-06-27 · 3 obs
○ 2019-06-17 07:20:48
● 2026-02-16 08:59:14
● 2026-06-27 18:42:40
●NShydrogen.ns.hetzner.com2026-02-16 → 2026-06-27 · 3 obs
○ 2019-06-17 07:20:48
● 2026-02-16 08:59:14
● 2026-06-27 18:42:40
○NSns1.misk.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○NSns2.misk.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
●NSoxygen.ns.hetzner.com2026-02-16 → 2026-06-27 · 3 obs
○ 2019-06-17 07:20:48
● 2026-02-16 08:59:14
● 2026-06-27 18:42:40
○MXalt1.aspmx.l.google.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXalt2.aspmx.l.google.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXaspmx.l.google.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXaspmx2.googlemail.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXaspmx3.googlemail.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXaspmx4.googlemail.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○MXaspmx5.googlemail.com2015-07-18 → 2019-06-17 · 4 obs
● 2015-07-18 03:49:10
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
●MXsmtp.captcha.com2026-02-16 → 2026-06-27 · 3 obs
○ 2019-06-17 07:20:48
● 2026-02-16 08:59:14
● 2026-06-27 18:42:40
○A178.63.240.2202019-06-17 → 2019-06-17 · 4 obs
○ 2018-01-11 19:34:22
● 2019-06-17 07:20:48
○ 2026-02-16 08:59:14
○ 2026-06-27 18:42:40
○A188.40.113.2352015-07-18 → 2018-01-11 · 4 obs
● 2015-07-18 03:49:10
● 2018-01-11 19:34:22
○ 2019-06-17 07:20:48
○ 2026-06-27 18:42:40
●A46.4.221.2302026-02-16 → 2026-06-27 · 3 obs
○ 2019-06-17 07:20:48
● 2026-02-16 08:59:14
● 2026-06-27 18:42:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comh.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net...-
captcha.comhelium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com2 records

✅ Authoritative Response

Server:88.198.229.192

NS records: helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for captcha.com (unsigned zone)

⏱️ Timing

Total: 643ms | Queries: -

📄 Records

TypeCountSample Data
A146.4.221.230
NS3oxygen.ns.hetzner.com, helium.ns.hetzner.de...
MX1smtp.captcha.com (pri: 10)
TXT2ms-domain-verification=01836b28-3157-4bd, v=spf1 mx a:captcha.com ip4:46.4.221.230
SOA1hydrogen.ns.hetzner.com dns.hetzner.com

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com)

Analysis

Hierarchy

captcha.com serves as the parent of www.captcha.com, mail.captcha.com, remote.captcha.com and smtp.captcha.com.

IP Addresses

captcha.com points to a single IP number: 46.4.221.230.

Additional host names such as captcha.biz, smtp.captcha.com, www.captcha.com and www.captcha.biz share IP numbers with captcha.com.

Name Servers

Three name servers are authoritative for captcha.com: hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

captcha.com has at least partial name server overlap with other domains, such as bau.bi, admin-interface.de, belweb.de and two others.

It is common to see these name servers used together with name servers ns1.first-ns.de and robotns2.second-ns.de.

hydrogen.ns.hetzner.com resolves to 213.133.100.98 and 2a01:4f8:0:1::add:1098. oxygen.ns.hetzner.com resolves to 88.198.229.192 and 2a01:4f8:0:1::add:2992. helium.ns.hetzner.de resolves to 193.47.99.5 and 2001:67c:192c::add:5. All three hostnames point to two IP numbers each.

Mail Servers

captcha.com has one mail server: smtp.captcha.com.

captcha.com shares its mail server setup with other domains, such as lanapsoft.com.

There is one IP number for smtp.captcha.com: 46.4.221.230.