Title: Standard Zero-Free Regions for Rankin--Selberg L-Functions via Sieve Theory,
Abstract: We give a simple proof of a standard zero-free region in the $t$-aspect for
the Rankin--Selberg $L$-function $L(s,\pi \times \widetilde{\pi})$ for any
unitary cuspidal automorphic representation $\pi$ of
$\mathrm{GL}_n(\mathbb{A}_F)$ that is tempered at every nonarchimedean place
outside a set of Dirichlet density zero.