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Apache-HttpClient
Apache HTTP Client Java library for requests
About this crawler
Apache-HttpClient is a web crawler identified by the regular-expression pattern ^Apache-HttpClient in the User-Agent request header. It is categorised as http-library. Use the regex above to detect, log, allow, or block Apache-HttpClient traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- Apache-HttpClient
- Pattern
^Apache-HttpClient- Tags
- http-library
- Added
- 2017/11/02
- rDNS suffixes
.nutch.apache.org- Instances
- 14 known sample(s)
rDNS verification (FCrDNS)
Verify a request is genuinely Apache-HttpClient with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.
.nutch.apache.org
Sample User-Agent strings
Apache-HttpClient/4.2.3 (java 1.5)
Apache-HttpClient/4.2.5 (java 1.5)
Apache-HttpClient/4.3.1 (java 1.5)
Apache-HttpClient/4.3.3 (java 1.5)
Apache-HttpClient/4.3.5 (java 1.5)
Apache-HttpClient/4.4.1 (Java/1.8.0_65)
Apache-HttpClient/4.5.2 (Java/1.8.0_65)
Apache-HttpClient/4.5.2 (Java/1.8.0_151)
Apache-HttpClient/4.5.2 (Java/1.8.0_161)
Apache-HttpClient/4.5.2 (Java/1.8.0_181)
Apache-HttpClient/4.5.3 (Java/1.8.0_121)
Apache-HttpClient/4.5.3-SNAPSHOT (Java/1.8.0_152)
Apache-HttpClient/4.5.7 (Java/11.0.3)
Apache-HttpClient/4.5.10 (Java/1.8.0_201)
Block this crawler
robots.txt — disallow Apache-HttpClient:
User-agent: Apache-HttpClient
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ^Apache-HttpClient [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "^Apache-HttpClient") {
return 403;
}
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