AbuseIPDB » 104.23.224.21
104.23.224.21
This IP was reported 6 times. Confidence of
Abuse
is 0% : ?
ISP
Cloudflare, Inc.
Usage Type
Data Center/Web Hosting/Transit
ASN
AS13335
Domain Name
cloudflare.com
Country
🇸🇪
Sweden
City
Stockholm, Stockholm
IP info including ISP, Usage Type, and Location provided
by IPInfo . Updated weekly.
Important Note: 104.23.224.21 is an IP address from within
our whitelist belonging to the subnet
104.16.0.0/13 ,
which we identify as: "Cloudflare Reverse Proxy" .
Whitelisted netblocks are typically owned by trusted entities, such as Google
or Microsoft who may use them for search engine spiders. However, these same entities
sometimes also provide cloud servers and mail services which are easily abused. Pay special
attention when trusting or distrusting these IPs.
IP Abuse Reports for 104.23.224.21 :
This IP address has been reported a total of
6
times from
2 distinct
sources.
104.23.224.21 was first reported on
January 15th 2026 , and the most recent report was
15 hours ago
Recent Reports:
We have received reports of abusive activity from this IP address within the last week. It is
potentially still actively engaged in abusive activities.
Reporter
IoA Timestamp (UTC)
Comment
Categories
🇨🇭
Mario Bretscher
2026-07-14 08:33:38
(15 hours ago)
14-Jul-2026 10:33:37.151 security: info: client @0x7956fc00a0b8 104.23.224.21#15496 (ns2.letsbuild.c ...
show more
14-Jul-2026 10:33:37.151 security: info: client @0x7956fc00a0b8 104.23.224.21#15496 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/A/IN' denied
14-Jul-2026 10:33:37.204 security: info: client @0x795708009d88 104.23.224.21#60387 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
14-Jul-2026 10:33:37.214 security: info: client @0x795708009d88 104.23.224.21#62599 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/AAAA/IN' denied
14-Jul-2026 10:33:37.255 security: info: client @0x795708009d88 104.23.224.21#16982 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
14-Jul-2026 10:33:37.303 security: info: client @0x795708009d88 104.23.224.21#24759 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
...
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Web App Attack
🇨🇭
Mario Bretscher
2026-07-13 08:26:04
(1 day ago)
13-Jul-2026 10:26:00.581 security: info: client @0x79b5400fc6b8 104.23.224.21#29773 (ns4.letsbuild.c ...
show more
13-Jul-2026 10:26:00.581 security: info: client @0x79b5400fc6b8 104.23.224.21#29773 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/A/IN' denied
13-Jul-2026 10:26:00.642 security: info: client @0x79b555d0e608 104.23.224.21#50591 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
13-Jul-2026 10:26:01.009 security: info: client @0x79b548058be8 104.23.224.21#47295 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/AAAA/IN' denied
13-Jul-2026 10:26:01.051 security: info: client @0x79b548058be8 104.23.224.21#21159 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/AAAA/IN' denied
13-Jul-2026 10:26:01.070 security: info: client @0x79b54c264cb8 104.23.224.21#28958 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
...
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Web App Attack
🇨🇭
Mario Bretscher
2026-07-13 04:57:11
(1 day ago)
13-Jul-2026 06:57:10.193 security: info: client @0x79b540093908 104.23.224.21#36281 (ns4.letsbuild.c ...
show more
13-Jul-2026 06:57:10.193 security: info: client @0x79b540093908 104.23.224.21#36281 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/A/IN' denied
13-Jul-2026 06:57:10.197 security: info: client @0x79b54806a4d8 104.23.224.21#44141 (ns3.letsbuild.ch): view Extern: query 'ns3.letsbuild.ch/A/IN' denied
13-Jul-2026 06:57:10.197 security: info: client @0x79b540093908 104.23.224.21#58106 (ns1.letsbuild.ch): view Extern: query 'ns1.letsbuild.ch/A/IN' denied
13-Jul-2026 06:57:10.261 security: info: client @0x79b555ccff38 104.23.224.21#12264 (ns1.letsbuild.ch): view Extern: query 'ns1.letsbuild.ch/AAAA/IN' denied
13-Jul-2026 06:57:10.321 security: info: client @0x79b540093908 104.23.224.21#27305 (ns1.letsbuild.ch): view Extern: query 'ns1.letsbuild.ch/AAAA/IN' denied
...
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Web App Attack
🇨🇭
Mario Bretscher
2026-07-04 09:25:56
(1 week ago)
04-Jul-2026 11:25:54.575 security: info: client @0x79b54c015128 104.23.224.21#59000 (ns2.letsbuild.c ...
show more
04-Jul-2026 11:25:54.575 security: info: client @0x79b54c015128 104.23.224.21#59000 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/A/IN' denied
04-Jul-2026 11:25:54.575 security: info: client @0x79b555cf7908 104.23.224.21#46860 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/A/IN' denied
04-Jul-2026 11:25:54.625 security: info: client @0x79b540078188 104.23.224.21#19932 (ns3.letsbuild.ch): view Extern: query 'ns3.letsbuild.ch/A/IN' denied
04-Jul-2026 11:25:54.629 security: info: client @0x79b555cf7908 104.23.224.21#41351 (ns4.letsbuild.ch): view Extern: query 'ns4.letsbuild.ch/AAAA/IN' denied
04-Jul-2026 11:25:54.629 security: info: client @0x79b555cf1e88 104.23.224.21#13680 (ns2.letsbuild.ch): view Extern: query 'ns2.letsbuild.ch/AAAA/IN' denied
...
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Web App Attack
🇩🇪
Petros Stefanakis
2026-05-09 15:08:24
(2 months ago)
(bind) bind triggered by 104.23.224.21 (SE/Sweden/-)
Hacking
🇩🇪
Petros Stefanakis
2026-01-15 10:02:34
(5 months ago)
(bind) bind triggered by 104.23.224.21 (SE/Sweden/-)
Hacking
Showing 1 to
6
of 6 reports
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