grammatical number - Is "details" singular?

Which one of the following sentences is correct?

1. Here is the details you requested.


2. Here are the details you requested.

Having googled "Here is the details" and "Here are the details", I've got 18m+ results for the former and 11m+ results for the latter.

Answer

Grammar

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Therefore, "Here are the details you requested" is the correct one.

Usage

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As noted by Colin Fine and Kosmonaut in their comments below and by Piet Delport in his answer, "here is [plural]" is commonly used in casual English. Maybe it is more used than the grammatical form where the subject agrees with the verb (to be confirmed). Refer to Piet Deport's answer for a possible explanation.