I didn't buy cdn service, but it seems to be cached by cdn. It's too strange

[native pond]

Hello,
I haven't purchased a CDN caching service, but why is my Next.js program's homepage automatically cached and cannot be updated? Even if the domain name points to another site, accessing that domain name still displays the previous page. Does anyone know the reason? I'm seeking to learn more.

[native pond]

who can help me thank you very much🥹

I have tried many methods, but they can't

[kind iron]

Are you using Cloudflare or Vercel? Caching on vercel is enable by default.

[native pond]

I deploy directly on my own cloud server, directly npm start, npm build🥹

[kind iron]

what kind of cloud server? a bare-metal linux vm?

Could you share a link to the page? And screenshot of the response headers?

[native pond]

I am from Chinese Mainland and use Alibaba Cloud server
🥹

[kind iron]

https://kmf.net.cn

[native pond]

yes

[kind iron]

What nextjs version are you using? are you using the /pages or /app dir?

[native pond]

13.1.6 /pages

[kind iron]

check this: https://www.alibabacloud.com/help/en/alibaba-cloud-cdn/latest/how-can-i-disable-directory-and-file-cache-policy-through-cdn

[native pond]

In the request header, x-nextjs-cache: HIT means that I still use cdn cache?🥹

[kind iron]

no that is related to nextjs but there x-cache: HIT is

[kind iron]

show the code for the / route

i meant the initial route /

[native pond]

I don't have the/route directory

[native pond]

is that right

[kind iron]

do you have any dynamic data in there?

[native pond]

yes

[kind iron]

try this

export async function getServerSideProps(context) {


context.res.setHeader(
        'Cache-Control',
        'public, s-maxage=10, stale-while-revalidate=59'
    )

[native pond]

I just changed it to you, but it still doesn't work. Apart from dynamic data, I still haven't changed the static data in the head navigation. That is to say, the whole page is an old page, and the current change is not used

[native pond]

@kind iron You can see the latest content through IP access, and the old content through domain name access. IP access address: http://47.111.15.161:3000

[kind iron]

that indicated a CDN has cached your stuff

the x-next-cache header might be cached too

in that case you need to clear the cache or disable it entirely on non-static directories

[native pond]

how to clear the cache🥹

[native pond]

I just logged in to the Alibaba Cloud background to check what the interface looks like if there are cdn settings. Can you give me a screenshot for reference? I can't find cdn in my resources, nor can I find any clues in the domain name resolution record

[kind iron]

i have never used alibaba's cloud

[native pond]

Okay, thank you. Good night. Let's see if there's any inspiration, progress and so on tomorrow

[kind iron]

This is what is looks like in cloudflare