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AbuseIPDB » 51.161.37.70

51.161.37.70 was found in our database!

This IP was reported 46 times. Confidence of Abuse is 0%: ?

ISP	Dmytro, Ahrefs Pte Ltd
Usage Type	Data Center/Web Hosting/Transit
ASN	AS16276
Hostname(s)	proxy-ca005-san70.ahrefs.net
Domain Name	ahrefs.net
Country	🇨🇦 Canada
City	Beauharnois, Quebec

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

Important Note: 51.161.37.70 is an IP address from within our whitelist belonging to the subnet 51.161.37.0/24, 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 51.161.37.70

Whois 51.161.37.70

IP Abuse Reports for 51.161.37.70:

This IP address has been reported a total of 46 times from 14 distinct sources. 51.161.37.70 was first reported on August 30th 2025, and the most recent report was 3 weeks ago.

Old Reports: The most recent abuse report for this IP address is from 3 weeks ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇮🇪 Jim Keir	2026-06-21 18:03:12 (3 weeks ago)	2026-06-21 18:03:11 51.161.37.70 Bad bot, blocking Mozilla/5.0	Bad Web Bot
🇩🇪 rh24	2026-05-26 15:13:46 (1 month ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.161.37.70 (CA/Can ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.161.37.70 (CA/Canada/proxy-ca005-san70.ahrefs.net) show less	Bad Web Bot
🇩🇪 ghostwarriors	2026-05-24 04:50:09 (1 month ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇩🇪 HandyTreff.de	2026-05-22 05:18:23 (1 month ago)	Bot/Spam/Scrapper attack detected on www.handytreff.de - Score: -108.05 (Bad < -10 / Very Bad < -20 ... show more Bot/Spam/Scrapper attack detected on www.handytreff.de - Score: -108.05 (Bad < -10 / Very Bad < -20 / Extreme < -35) \| UA: Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/) show less	Web App Attack Bad Web Bot
🇩🇪 ghostwarriors	2026-05-21 16:50:58 (1 month ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-05-20 21:02:16 (1 month ago)	(mod_security) mod_security (id:210730) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 ... show more (mod_security) mod_security (id:210730) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Wed May 20 17:02:12.539011 2026] [security2:error] [pid 23880:tid 23880] [client 51.161.37.70:23758] 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.chicagowca.com\|F\|2"] [data ".com"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "www.chicagowca.com"] [uri "/[email protected]"] [unique_id "ag4hVEqWon4Cw-B8dSn0SwAAAAE"] show less	Brute-Force Bad Web Bot Web App Attack
🇩🇪 ghostwarriors	2026-05-01 19:21:08 (2 months ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇩🇪 ghostwarriors	2026-04-30 07:22:00 (2 months ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇩🇪 ghostwarriors	2026-04-23 23:20:45 (2 months ago)	Webpage scraping	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-04-13 13:01:41 (3 months ago)	(mod_security) mod_security (id:210730) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 ... show more (mod_security) mod_security (id:210730) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Mon Apr 13 09:01:36.838526 2026] [security2:error] [pid 3143206:tid 3143206] [client 51.161.37.70:24642] 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\|\|williamfitzsimmons.com\|F\|2"] [data ".harlows.com"] [severity "CRITICAL"] [tag "CWAF"] [tag "HTTP"] [hostname "williamfitzsimmons.com"] [uri "/www.harlows.com"] [unique_id "adzpMNyJxz8o1CTw8YoNSgAAAAg"] show less	Brute-Force Bad Web Bot Web App Attack
🇩🇪 rh24	2026-04-01 20:07:24 (3 months ago)	(apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.161.37.70 (CA/Can ... show more (apache-useragents) Failed apache-useragents trigger with match [redacted] from 51.161.37.70 (CA/Canada/proxy-ca005-san70.ahrefs.net) show less	Bad Web Bot
🇺🇸 TPI-Abuse	2026-03-29 08:54:28 (3 months ago)	(mod_security) mod_security (id:217291) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 ... show more (mod_security) mod_security (id:217291) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sun Mar 29 04:54:23.455098 2026] [security2:error] [pid 20047:tid 20047] [client 51.161.37.70:52710] ModSecurity: Access denied with code 403 (phase 2). Pattern match "(\\\\n\|\\\\r)" at ARGS_NAMES:\\r fromwhere. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/12_HTTP_Protocol.conf"] [line "145"] [id "217291"] [rev "2"] [msg "HTTP Header Injection Attack via payload (CR/LF detected)\|\|www.groupof12.com\|F\|2"] [data "Matched Data: \\x0d found within ARGS_NAMES:\\x5cr fromwhere: \\x0d fromwhere"] [severity "CRITICAL"] [tag "CWAF"] [tag "Protocol"] [hostname "www.groupof12.com"] [uri "/g12terms.php"] [unique_id "acjov6loNzqVmVy5xkG2cQAAAA0"] show less	Brute-Force Bad Web Bot Web App Attack
🇺🇸 TPI-Abuse	2026-03-15 18:01:14 (4 months ago)	(mod_security) mod_security (id:240950) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 ... show more (mod_security) mod_security (id:240950) triggered by 51.161.37.70 (proxy-ca005-san70.ahrefs.net): 1 in the last 300 secs; Ports: *; Direction: 1; Trigger: LF_MODSEC; Logs: [Sun Mar 15 14:01:07.209157 2026] [security2:error] [pid 27320:tid 27320] [client 51.161.37.70:17082] ModSecurity: Access denied with code 403 (phase 1). Pattern match "\\\\D" at TX:1. [file "/etc/apache2/conf.d/modsec_vendor_configs/comodo_apache/30_Apps_OtherApps.conf"] [line "4530"] [id "240950"] [rev "2"] [msg "COMODO WAF: XSS & SQL injection vulnerability in Pragyan CMS 3.0 (CVE-2015-1471)\|\|www.nancyscafeandcatering.com\|F\|2"] [severity "CRITICAL"] [tag "CWAF"] [tag "OtherApps"] [hostname "www.nancyscafeandcatering.com"] [uri "/wp-content/themes/eatery/nav.php"] [unique_id "abbz4woAVKUOpdBWSQNMrAAAAAQ"] show less	Brute-Force Bad Web Bot Web App Attack
🇹🇷 rtbh.com.tr	2026-03-14 20:12:03 (4 months ago)	list.rtbh.com.tr report: tcp/0	Brute-Force
🇹🇷 rtbh.com.tr	2026-03-13 20:12:02 (4 months ago)	list.rtbh.com.tr report: tcp/0	Brute-Force

Showing 1 to 15 of 46 reports

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