AbuseIPDB » 51.81.110.54
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.
51.81.110.54 is an IP address from within our whitelist belonging to the subnet 51.81.110.48/28, which we identify as "Ahrefs Crawler".
IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.
Top Reporter Countries (Last 60 Days)
Example preview
Report Categories (Last 60 Days)
Example previewIP Abuse Reports for 51.81.110.54:
This IP address has been reported a total of 4,230 times from 101 distinct sources. 51.81.110.54 was first reported on , and the most recent report was . In the last 60 days, the top reporter locations were: Germany with 7 reports; Canada with 1 report; Ireland with 1 report. The most common categories in these recent reports were: Bad Web Bot 7 times; Brute-Force 3 times; Port Scan 2 times; Web App Attack 2 times; IoT Targeted 1 time; Other 2 times.
| Reporter | IoA Timestamp (UTC) | Comment | Categories | |
|---|---|---|---|---|
| 🇨🇦 Mediashaker |
|
Bad Web Bot | ||
| 🇩🇪 DocNetzwerk |
|
Bad Web Bot | ||
| 🇩🇪 palzer.IT |
|
Bad Web Bot | ||
| 🇺🇸 etu brutus |
51.81.110.54 Blocked by [Attack Vector List]
...
|
Hacking Brute-Force Exploited Host | ||
| 🇮🇳 dineshskt4all |
|
IoT Targeted | ||
| 🇩🇪 ghostwarriors |
Webpage scraping
|
Brute-Force Bad Web Bot Web App Attack | ||
| 🇩🇪 ghostwarriors |
Webpage scraping
|
Brute-Force Bad Web Bot Web App Attack | ||
| 🇩🇪 grassau.com |
|
Bad Web Bot | ||
| 🇩🇪 netclix.gr |
|
Port Scan | ||
| 🇩🇪 netclix.gr |
|
Port Scan | ||
| 🇮🇪 Jim Keir |
2026-08-23 11:34:32 51.81.110.54 Bad bot, blocking Mozilla/5.0
|
Bad Web Bot | ||
| 🇳🇱 Study Bitcoin 🤗 |
Port probe to tcp/24596
[srv133]
|
Port Scan | ||
| 🇩🇪 Admins@FBN |
FW-PortScan: Traffic Blocked srcport=3399 dstport=22222
|
Port Scan | ||
| 🇳🇱 Study Bitcoin 🤗 |
Port probe to tcp/24559
[srv133]
|
Port Scan | ||
| 🇩🇪 Admins@FBN |
FW-PortScan: Traffic Blocked srcport=10608 dstport=22122
|
Port Scan |
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