It will really depend on the product and the connector. Below is a couple of available connectors for Google Search Appliance; I suggest you take a look at the content it indexes and contact the vendors in case of specific questions:
Hi my Community friends! For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...
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