The main website of the BSC is failing every day around 3:00 AM for
almost one hour, so it is not a very good target. Instead, google.com is
used which should be more reliable. The same robots.txt path is fetched,
as it is smaller than the main page.
Reviewed-by: Aleix Roca Nonell <aleix.rocanonell@bsc.es>
Rodrigo Arias Mallo
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