Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: None

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.52.231
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 33083
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.52.231.			IN	A

;; AUTHORITY SECTION:
.			375	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 15 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:34:27 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 231.52.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 231.52.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
66.8.205.220 attackspam
Aug 14 14:38:36 XXX sshd[6154]: Invalid user bcampion from 66.8.205.220 port 55674
2019-08-15 04:45:39
36.103.245.31 attackbotsspam
Aug 14 15:32:54 webmail sshd\[40490\]: Invalid user gamer from 36.103.245.31Aug 14 15:32:57 webmail sshd\[40490\]: Failed password for invalid user gamer from 36.103.245.31 port 40684 ssh2Aug 14 15:52:03 webmail sshd\[38921\]: Invalid user gnbc from 36.103.245.31Aug 14 15:52:05 webmail sshd\[38921\]: Failed password for invalid user gnbc from 36.103.245.31 port 34850 ssh2Aug 14 15:53:54 webmail sshd\[1735\]: Invalid user debbie from 36.103.245.31Aug 14 15:53:56 webmail sshd\[1735\]: Failed password for invalid user debbie from 36.103.245.31 port 51390 ssh2Aug 14 15:55:46 webmail sshd\[4927\]: Invalid user julia from 36.103.245.31Aug 14 15:55:48 webmail sshd\[4927\]: Failed password for invalid user julia from 36.103.245.31 port 39698 ssh2Aug 14 15:57:32 webmail sshd\[8209\]: Invalid user pgbouncer from 36.103.245.31Aug 14 15:57:34 webmail sshd\[8209\]: Failed password for invalid user pgbouncer from 36.103.245.31 port 56238 ssh2Aug 14 15:59:21 webmail sshd\[11629\]: Invalid user anthon
...
2019-08-15 04:18:00
92.234.114.90 attackbotsspam
2019-08-14T20:18:16.308896abusebot-7.cloudsearch.cf sshd\[9273\]: Invalid user maria from 92.234.114.90 port 40950
2019-08-15 04:38:22
207.148.98.161 attack
WordPress XMLRPC scan :: 207.148.98.161 0.180 BYPASS [14/Aug/2019:23:06:48  1000] www.[censored_1] "POST /xmlrpc.php HTTP/1.1" 200 382 "https://www.[censored_1]/" "PHP/5.3.71"
2019-08-15 04:33:07
85.105.100.22 attack
Automatic report - Port Scan Attack
2019-08-15 04:24:29
76.68.109.110 attack
Aug 14 17:33:58 dedicated sshd[1194]: Invalid user antony from 76.68.109.110 port 40442
2019-08-15 04:32:43
27.111.83.239 attackspam
Aug 14 21:48:55 [host] sshd[31009]: Invalid user alexie from 27.111.83.239
Aug 14 21:48:55 [host] sshd[31009]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=27.111.83.239
Aug 14 21:48:57 [host] sshd[31009]: Failed password for invalid user alexie from 27.111.83.239 port 53822 ssh2
2019-08-15 04:11:13
157.230.213.241 attack
$f2bV_matches
2019-08-15 04:12:46
221.126.225.184 attackbotsspam
Aug 14 14:41:10 XXX sshd[6243]: Invalid user oraprod from 221.126.225.184 port 58922
2019-08-15 04:11:37
104.248.181.156 attack
Aug 14 14:39:08 XXX sshd[6165]: Invalid user trash from 104.248.181.156 port 59046
2019-08-15 04:41:13
128.199.107.252 attack
Aug 14 21:37:09 root sshd[19187]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.107.252 
Aug 14 21:37:11 root sshd[19187]: Failed password for invalid user ronjones from 128.199.107.252 port 39876 ssh2
Aug 14 21:42:16 root sshd[19254]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=128.199.107.252 
...
2019-08-15 04:15:09
31.172.80.89 attack
Aug 14 14:54:53 XXX sshd[6965]: Invalid user mhlee from 31.172.80.89 port 60482
2019-08-15 04:12:09
189.27.149.5 attack
Automatic report - Banned IP Access
2019-08-15 04:10:13
104.223.142.180 attackspam
Aug 12 21:28:34 xxxxxxx0 sshd[4140]: Invalid user music from 104.223.142.180 port 47357
Aug 12 21:28:34 xxxxxxx0 sshd[4140]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.223.142.180
Aug 12 21:28:36 xxxxxxx0 sshd[4140]: Failed password for invalid user music from 104.223.142.180 port 47357 ssh2
Aug 12 21:45:00 xxxxxxx0 sshd[6669]: Invalid user craig2 from 104.223.142.180 port 53852
Aug 12 21:45:00 xxxxxxx0 sshd[6669]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=104.223.142.180

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=104.223.142.180
2019-08-15 04:42:07
206.189.153.147 attack
Automatic report - Banned IP Access
2019-08-15 04:41:49

Recently Reported IPs

104.21.52.232 104.21.52.144 104.21.52.238 104.21.52.218
104.21.52.116 104.21.52.136 104.21.52.224 104.21.52.189
104.21.52.28 104.21.52.78 104.21.52.79 104.21.52.95
104.21.52.89 104.21.52.30 104.21.52.66 104.21.52.195
104.21.52.35 104.21.53.102 104.21.53.103 104.21.53.125