captcha.org - dns.ninja

captcha.org

DNSSEC⚠️ Not signed
A188.40.246.97🇩🇪 Hetzner188.40.0.0/16 HETZNER-RZ-FKS-BLK1
PTRa.dds.ro
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
MXmail.captcha.org ⭐
A178.63.240.220🇩🇪 Hetzner178.63.0.0/16 HETZNER-RZ-FKS-BLK2
PTRstatic.220.240.63.178.clients.your-server.de
SOAhydrogen.ns.hetzner.comdns@hetzner.com 2026-02-08 #0

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1786193382
rank #26641 globally
rank #2883 in the tld
WOT: SAFE (63/100)
📈 Tranco rank: #122,009

Subdomains

www.captcha.org
mail.captcha.org

Same first word

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
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.rest
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

Similar names

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

DNS History

8 records (5 active, 3 former)

20162017201820192020202120222023202420252026NShelium.ns.hetzner.dehydrogen.ns.hetzner.comoxygen.ns.hetzner.comns1.lanapsoft.comns2.lanapsoft.comMXmail.captcha.orgA188.40.246.97178.63.240.216
●NShelium.ns.hetzner.de2026-03-11 → 2026-08-08 · 3 obs
○ 2021-05-23 08:01:40
● 2026-03-11 17:35:06
● 2026-08-08 13:12:38
●NShydrogen.ns.hetzner.com2026-03-11 → 2026-08-08 · 3 obs
○ 2021-05-23 08:01:40
● 2026-03-11 17:35:06
● 2026-08-08 13:12:38
○NSns1.lanapsoft.com2015-06-05 → 2021-05-23 · 4 obs
● 2015-06-05 05:39:34
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-08-08 13:12:38
○NSns2.lanapsoft.com2015-06-05 → 2021-05-23 · 4 obs
● 2015-06-05 05:39:34
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-08-08 13:12:38
●NSoxygen.ns.hetzner.com2026-03-11 → 2026-08-08 · 3 obs
○ 2021-05-23 08:01:40
● 2026-03-11 17:35:06
● 2026-08-08 13:12:38
●MXmail.captcha.org2016-12-28 → 2026-08-08 · 2 obs
● 2016-12-28 20:51:38
● 2026-08-08 13:12:38
○A178.63.240.2162015-06-05 → 2021-05-23 · 4 obs
● 2015-06-05 05:39:34
● 2021-05-23 08:01:40
○ 2026-03-11 17:35:06
○ 2026-08-08 13:12:38
●A188.40.246.972026-03-11 → 2026-08-08 · 3 obs
○ 2021-05-23 08:01:40
● 2026-03-11 17:35:06
● 2026-08-08 13:12:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
captcha.orghydrogen.ns.hetzner.com, oxygen.ns.hetzner.com, helium.ns.hetzner.de-

✅ Authoritative Response

Server:213.133.100.98

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for captcha.org (unsigned zone)

⏱️ Timing

Total: 956ms | Queries: -

📄 Records

TypeCountSample Data
A1188.40.246.97
NS3oxygen.ns.hetzner.com, helium.ns.hetzner.de...
MX1mail.captcha.org (pri: 10)
SOA1hydrogen.ns.hetzner.com dns.hetzner.com

Analysis

Hierarchy

www.captcha.org and mail.captcha.org are both subdomains of captcha.org.

IP Addresses

captcha.org resolves to one IP address: 188.40.246.97.

Other hosts including a.dds.ro, www.captcha.org and static.97.246.40.188.clients.your-server.de share IP addresses with captcha.org.

Name Servers

captcha.org carries NS records delegating to hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.

At least some of captcha.org's name servers are shared with other domains, for example ptua.eu, reisegadgets.com, pfau.biz and two more.

It is common for these name servers to be used in conjunction with the name servers robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.

hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de are three hostnames that each resolve to a pair of IP addresses: hydrogen.ns.hetzner.com to 213.133.100.98 and 2a01:4f8:0:1::add:1098, oxygen.ns.hetzner.com to 88.198.229.192 and 2a01:4f8:0:1::add:2992, and helium.ns.hetzner.de to 193.47.99.5 and 2001:67c:192c::add:5.

Mail Servers

Mail for captcha.org is handled by a single mail server, mail.captcha.org.

mail.captcha.org carries a single IP number, which is 178.63.240.220.