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AbuseIPDB » 51.75.236.131

51.75.236.131 was found in our database!

This IP was reported 271 times. Confidence of Abuse is 0%: ?

ISP	Ahrefs Pte Ltd Dmytro
Usage Type	Data Center/Web Hosting/Transit
ASN	AS16276
Hostname(s)	proxy-fr001-san131.ahrefs.net
Domain Name	ahrefs.com
Country	🇫🇷 France
City	Lille, Hauts-de-France

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

Important Note: 51.75.236.131 is an IP address from within our whitelist belonging to the subnet 51.75.236.128/27, 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 51.75.236.131

Whois 51.75.236.131

IP Abuse Reports for 51.75.236.131:

This IP address has been reported a total of 271 times from 46 distinct sources. 51.75.236.131 was first reported on August 27th 2025, and the most recent report was 1 day 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
🇺🇸 TPI-Abuse	2025-09-04 16:09:32 (8 months ago)	(mod_security) mod_security (id:210730) triggered by 51.75.236.131 (ip131.ip-51-75-236.eu): 1 in the ... show more (mod_security) mod_security (id:210730) triggered by 51.75.236.131 (ip131.ip-51-75-236.eu): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Thu Sep 04 12:09:28.739456 2025] [security2:error] [pid 30219:tid 30219] [client 51.75.236.131:43798] ModSecurity: Access denied with code 403 (phase 2). Match of "pmFromFile userdata_wl_extensions" against "TX:extension" required. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/10_HTTP_HTTP.conf"] [line "27"] [id "210730"] [rev "5"] [msg "COMODO WAF: URL file extension is restricted by policy\|\|www.raintechgutters.com\|F\|2"] [data ".raintechgutters.com"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "www.raintechgutters.com"] [uri "/seamless-gutter-installation-orlando-fl/www.raintechgutters.com"] [unique_id "aLm5uHfVl5u7Gyx4ary3rgAAAAU"] show less	Brute-Force Bad Web Bot Web App Attack
🇩🇪 rh24	2025-09-03 17:55:32 (9 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/Fr ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/France/ip131.ip-51-75-236.eu) show less	Bad Web Bot
🇬🇧 [email protected]	2025-09-03 10:59:26 (9 months ago)	demo.iomad.org:443 51.75.236.131 - - [03/Sep/2025:10:59:26 +0000] "GET /cuan/?proyek=BOCORAN+HARMONI ... show more demo.iomad.org:443 51.75.236.131 - - [03/Sep/2025:10:59:26 +0000] "GET /cuan/?proyek=BOCORAN+HARMONIBET HTTP/1.1" 404 3565 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" ... show less	Hacking Web App Attack
🇿🇦 Tokolosh Hunters	2025-09-02 15:24:38 (9 months ago)	AutoBlockWindow-Known bad useragent query-2025-09-02 15:24:37	Bad Web Bot
🇩🇪 Séfora Srl	2025-09-01 18:00:25 (9 months ago)	Bad user agents ignoring web crawling rules. Draing bandwidth - detected by Fail2Ban in plesk-apache ... show more Bad user agents ignoring web crawling rules. Draing bandwidth - detected by Fail2Ban in plesk-apache-badbot jail show less	Bad Web Bot
🇨🇳 ThreatBook.io	2025-09-01 00:27:24 (9 months ago)	ThreatBook Intelligence: Zombie,Spam more details on https://threatbook.io/ip/51.75.236.131 2025-08- ... show more ThreatBook Intelligence: Zombie,Spam more details on https://threatbook.io/ip/51.75.236.131 2025-08-31 05:00:42 /docs/config/cookie-processor.html 2025-08-31 20:11:01 /explore/projects/starred/archived%3Dtrue%26sort%3Dlatest_activity_asc.html show less	Web App Attack
🇬🇧 Mendip_Defender	2025-08-31 20:30:25 (9 months ago)	51.75.236.131 - - [31/Aug/2025:21:30:07 +0100] "GET /sitemap.xml HTTP/1.0" 200 4142 "-" "Mozilla/5.0 ... show more 51.75.236.131 - - [31/Aug/2025:21:30:07 +0100] "GET /sitemap.xml HTTP/1.0" 200 4142 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" ... show less	Bad Web Bot
🇳🇱 Roderic	2025-08-31 02:46:09 (9 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted])	Bad Web Bot
🇩🇪 rh24	2025-08-31 02:06:11 (9 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/Fr ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/France/ip131.ip-51-75-236.eu) show less	Bad Web Bot
🇨🇳 ThreatBook.io	2025-08-31 00:23:28 (9 months ago)	ThreatBook Intelligence: Zombie,Spam more details on https://threatbook.io/ip/51.75.236.131 2025-08- ... show more ThreatBook Intelligence: Zombie,Spam more details on https://threatbook.io/ip/51.75.236.131 2025-08-30 17:28:28 /docs/config/cluster-receiver.html show less	Web App Attack
🇬🇧 Mendip_Defender	2025-08-28 12:05:37 (9 months ago)	51.75.236.131 - - [28/Aug/2025:13:05:20 +0100] "GET / HTTP/2.0" 403 146 "-" "Mozilla/5.0 (compatible ... show more 51.75.236.131 - - [28/Aug/2025:13:05:20 +0100] "GET / HTTP/2.0" 403 146 "-" "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)" ... show less	Bad Web Bot
🇨🇦 Mediashaker	2025-08-28 05:29:59 (9 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/Fr ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.75.236.131 (FR/France/ip131.ip-51-75-236.eu) show less	Bad Web Bot
🇳🇱 Roderic	2025-08-28 04:48:17 (9 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted])	Bad Web Bot
Anonymous	2025-08-28 01:51:57 (9 months ago)	Excessive crawling/scraping	Hacking Brute-Force
🇺🇸 TPI-Abuse	2025-08-27 15:54:19 (9 months ago)	(mod_security) mod_security (id:210381) triggered by 51.75.236.131 (ip131.ip-51-75-236.eu): 1 in the ... show more (mod_security) mod_security (id:210381) triggered by 51.75.236.131 (ip131.ip-51-75-236.eu): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Wed Aug 27 11:54:15.417768 2025] [security2:error] [pid 22035:tid 22041] [client 51.75.236.131:51666] ModSecurity: Access denied with code 403 (phase 2). Invalid URL Encoding: Non-hexadecimal digits used at REQUEST_URI. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/12_HTTP_Protocol.conf"] [line "82"] [id "210381"] [rev "6"] [msg "COMODO WAF: URL Encoding Abuse Attack Attempt\|\|www.mentzlaw.com\|F\|4"] [data "REQUEST_URI=/lawyerinlouisiana/%url%"] [severity "WARNING"] [tag "CWAF"] [tag "Protocol"] [hostname "www.mentzlaw.com"] [uri "/lawyerinlouisiana/%url%"] [unique_id "aK8qJ4YxciuyBaud0xYWngAAAQQ"] show less	Brute-Force Bad Web Bot Web App Attack

Showing 256 to 270 of 271 reports

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