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AbuseIPDB » 51.81.111.134

51.81.111.134 was found in our database!

This IP was reported 9 times. Confidence of Abuse is 0%: ?

ISP	OVH US LLC
Usage Type	Data Center/Web Hosting/Transit
ASN	AS16276
Hostname(s)	proxy-us-east009-cip7.ahrefs.net
Domain Name	ovhcloud.com
Country	🇺🇸 United States of America
City	Reston, Virginia

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Important Note: 51.81.111.134 is an IP address from within our whitelist belonging to the subnet 51.81.111.128/28, which we identify as: "Ahrefs Crawler".

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.

Report 51.81.111.134

Whois 51.81.111.134

IP Abuse Reports for 51.81.111.134:

This IP address has been reported a total of 9 times from 7 distinct sources. 51.81.111.134 was first reported on August 23rd 2026, and the most recent report was 4 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
🇬🇧 Mendip_Defender	2026-09-01 16:54:34 (4 hours ago)	51.81.111.134 - - [01/Sep/2026:17:54:45 +0100] "GET / HTTP/2.0" 403 146 "-" "Mozilla/5.0 (compatible ... show more 51.81.111.134 - - [01/Sep/2026:17:54:45 +0100] "GET / HTTP/2.0" 403 146 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" ... show less	Bad Web Bot
🇩🇪 ghostwarriors	2026-08-29 22:50:42 (2 days ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇺🇸 ChamberofCommerce.com	2026-08-26 05:25:22 (6 days ago)	Unauthorized Scraping Attempt - More then 225 Pages Requested in a 24 hour period - Total Requested ... show more Unauthorized Scraping Attempt - More then 225 Pages Requested in a 24 hour period - Total Requested Before Block:226 show less	Bad Web Bot
🇩🇪 ghostwarriors	2026-08-25 22:20:59 (6 days ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇩🇪 4server	2026-08-25 08:14:51 (1 week ago)	[TueAug2510:14:45.5246192026][security2:error][pid2217250:tid2217311][client51.81.111.134:0]ModSecur ... show more [TueAug2510:14:45.5246192026][security2:error][pid2217250:tid2217311][client51.81.111.134:0]ModSecurity:Accessdeniedwithcode403\(phase1\).Stringmatch\"/wp-content/plugins/content-manager-light/\"atREQUEST_URI.[file\"/etc/apache2/conf.d/modsec_custom_rules.conf\"][line\"377\"][id\"1101013\"][hostname\"alessandrolucchini.ch\"][uri\"/wp-content/plugins/content-manager-light/include/otw_components/otw_shortcode/css/otw_shortcode.css\"][unique_id\"ao1O9clDoDoH-JyoJRRjPAAAAIA\"] show less	Port Scan Brute-Force Web App Attack
🇩🇪 Hazzard	2026-08-25 07:10:02 (1 week ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted]): (CF_ENABLE)	Bad Web Bot
🇩🇪 netclix.gr	2026-08-24 14:26:21 (1 week ago)	(bot_qv) Bot Scraping QuickView 51.81.111.134 (US/United States/proxy-us-east009-cip7.ahrefs.net): 1 ... show more (bot_qv) Bot Scraping QuickView 51.81.111.134 (US/United States/proxy-us-east009-cip7.ahrefs.net): 1 in the last 4600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs: 51.81.111.134 - - [24/Aug/2026:17:26:15 +0300] "GET /index.php?dispatch=products.quick_view&product_id=3713&prev_url=index.php%3Fdispatch%3Dcategories.view%26category_id%3D266%26page%3D8&n_items=3512%2C3514%2C3519%2C3520%2C3523%2C3713%2C3728%2C3735%2C3739%2C3742%2C3755%2C3758 HTTP/2.0" 302 0 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" show less	Port Scan
🇩🇪 netclix.gr	2026-08-23 15:56:07 (1 week ago)	(bot_qv) Bot Scraping QuickView 51.81.111.134 (US/United States/proxy-us-east009-cip7.ahrefs.net): 1 ... show more (bot_qv) Bot Scraping QuickView 51.81.111.134 (US/United States/proxy-us-east009-cip7.ahrefs.net): 1 in the last 4600 secs; Ports: *; Direction: inout; Trigger: LF_CUSTOMTRIGGER; Logs: 51.81.111.134 - - [23/Aug/2026:18:56:05 +0300] "GET /index.php?dispatch=products.quick_view&product_id=11878&prev_url=index.php%3Fsl%3Den%26dispatch%3Dcategories.view%26category_id%3D1%26page%3D21&n_items=11983%2C11746%2C11807%2C11786%2C11887%2C10915%2C11037%2C11401%2C11403%2C11414%2C11108%2C11090%2C11878%2C12440%2C12619%2C12371%2C12362%2C12428%2C10891%2C11824 HTTP/2.0" 302 0 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" show less	Port Scan
🇩🇪 rh24	2026-08-23 15:14:50 (1 week ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.81.111.134 (US/Un ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.81.111.134 (US/United States/proxy-us-east009-cip7.ahrefs.net) show less	Bad Web Bot

Showing 1 to 9 of 9 reports

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