Hi,

As far as I can see, the revalidate by time, and by tags, should not interfere with each other. So yeah, you can use both.

I looked at the implementation of these, and then ran a couple of tests in production mode.

export default async function Home() {
  const num = await fetch(
    "https://www.random.org/integers/?num=1&min=1&max=1000&col=1&base=10&format=plain&rnd=new",
    {
      next: {
        revalidate: 60,
        tags: ["rng"],
      },
    },
  ).then((res) => res.text());

  return <div>Hello {num}</div>;
}

And this revalidate route:

import { revalidateTag } from "next/cache";

export const dynamic = "force-dynamic";

export async function GET() {
  revalidateTag("rng");
  return Response.json({ revalidated: true, now: Date.now() });
}

After building, I go to the home page, and see a number, then I can revalidate the tag running this on my browser console:

fetch("/tag").then(res => res.json()).then(console.log)

And reloading the page, shows a new number (assuming you don't get the same random number...), and then waiting 60 seconds, to then do a double request (as per documentation, that's how stale-while-revalidate, works), shows a new number, so these work fine together.