51.81.163.49
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.
51.81.163.49 is an IP address from within our whitelist belonging to the subnet 51.81.163.48/28, which we identify as "Ahrefs Crawler".
| ISP | OVH US LLC |
|---|---|
| Usage Type | Data Center/Web Hosting/Transit |
| ASN | AS16276 |
| Hostname(s) | proxy-us-west001-cip2.ahrefs.net |
| Domain Name | ovhcloud.com |
| Country | 🇺🇸 United States of America |
| City | Hillsboro, Oregon |
ISP, Usage Type, and Location provided by IPInfo. Updated weekly.
IP Abuse Reports for 51.81.163.49
This IP address has been reported a total of 62 times from 21 distinct sources. 51.81.163.49 was first reported on , and the most recent report was . In the last 60 days, the top reporter locations were: Germany with 20 reports; United States of America with 15 reports; Canada with 12 reports. The most common categories in these recent reports were: Bad Web Bot 47 times; Brute-Force 18 times; Web App Attack 15 times; Port Scan 8 times; Exploited Host 7 times; Other 14 times.
| Reporter | IoA Timestamp (UTC) | Comment | Categories | |
|---|---|---|---|---|
| 🇨🇦 Mediashaker |
|
Bad Web Bot | ||
| 🇬🇧 Mendip_Defender |
|
Bad Web Bot | ||
| 🇩🇪 ghostwarriors |
Webpage scraping
|
Brute-Force Bad Web Bot Web App Attack | ||
| 🇩🇪 ghostwarriors |
Webpage scraping
|
Brute-Force Bad Web Bot Web App Attack | ||
| 🇮🇩 hermawan |
|
Email Spam Hacking | ||
| Anonymous |
apache vulnerability scan
|
Web App Attack | ||
| 🇩🇪 palzer.IT |
|
Bad Web Bot | ||
| 🇨🇦 Mediashaker |
|
Bad Web Bot | ||
| 🇮🇹 CoreTech srl |
[DC: IP:151.1.252.27] ntopng alert: blacklisted_client_contact
|
Hacking | ||
| 🇬🇧 Mendip_Defender |
|
Bad Web Bot | ||
| 🇩🇪 rh24 |
|
Bad Web Bot | ||
| 🇨🇦 Mediashaker |
|
Bad Web Bot | ||
| 🇺🇸 1cyb3rpunk |
|
Port Scan Brute-Force Bad Web Bot Web App Attack | ||
| 🇺🇸 etu brutus |
51.81.163.49 Blocked by [Attack Vector List]
...
|
Hacking Brute-Force Exploited Host | ||
| 🇧🇷 ICS Labs |
ICS Labs threat intelligence (ICS Feeds): Brute-Force. Last observed 2026-10-17 UTC.
|
Brute-Force |
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