Duplex on the Web user agent
DuplexWeb-Google is the user agent that supports the Duplex on the web service. You can see the user agent token and full user agent strings here.
Crawl frequency and behavior
- No services that use the
DuplexWeb-Googleuser agent will perform any purchases or perform any other significant actions when crawling your site.
DuplexWeb-Googleuser agent crawls occur a few times a day to a few times an hour, depending on the feature being trained, but these runs are calculated to not overload your site or disturb your traffic.
DuplexWeb-Googleuser agent crawls are not used by Google Search for indexing. Because they are not used for indexing, the
DuplexWeb-Googleuser agent does not recognize the
- Google Analytics does not record page requests made by the
DuplexWeb-Googleuser agent during crawling and analysis.
You must explicitly block the
DuplexWeb-Google user agent using the Disallow robots.txt rule to prevent it from crawling your site. Disabling crawling (training) in your Search Console property setting is not enough.
DuplexWeb-Google user agent obeys robots.txt rules normally, with the following significant exception:
- When Duplex on the web is enabled using Search Console (the default), the
DuplexWeb-Googleuser agent is not affected by the
*wildcard user agent string in Disallow statements. When Duplex on the web is disabled using Search Console, the
DuplexWeb-Googleuser agent respects the
*wildcard user agent string in Disallow statements. Examples:
# Example 1: Block DuplexWeb-Google from crawling your site User-agent: DuplexWeb-Google Disallow: / # Example 2: # * If Duplex on the web is enabled for this property in Search Console, # block all user agents except DuplexWeb-Google. # * If Duplex on the web is disabled for this property in Search Console, # block all user agents including Duplex-WebGoogle. User-agent: * Disallow: /