Piwigo 2.6 has introduced a geolocation feature for your visitors. Now you know where your visitors come from and you may have discovered that you often receive visits from Redmond (Washington, USA) and Mountain View (California, USA). Don’t panic, this is not an attack: they are just robots of Bing (Microsoft search engine) and Google.
Their visits are useful because they make you “findable” in search engines. But maybe you don’t want to see all this noise in your visit history. Activate the new plugin No Stats for Robots if you want to see only real human visitors. Of course, this plugin won’t stop search engines, it just avoid registering their visits.