UA: Jetty/9.2.4.v20141103 Protocol: HTTP/1.1 Robots.txt: No Host: Various
Jetty provides a Web server and javax.servlet container and many other integrations... easily embedded in devices, tools, frameworks, application servers, and clusters
source: eclipse.org/jetty
lucy24
12:08 am on Mar 20, 2017 (gmt 0)
Is this another of those arrangements (weren't we just talking about this a few days ago?) where they're visiting your site in response to some other human's lawful action, and should therefore be tolerated? Or are they up to no good?
keyplyr
12:31 am on Mar 20, 2017 (gmt 0)
Probably "no good." Jetty (more info at source posted above) is a utility that can be used for many purposes, including GET to mine data from domains and form libraries, indexes, etc. In other words, it can be (and is) used as a scraper.
However, Jetty is also being used to gather data to populate Social Media platforms. I recently have seen it used to build a short link resolver DB. In that instance, it would, IMO, be "tolerable" but for defense simplicity, I'm currently just blocking this UA. ymmv.
