Hello Community,
I need urgent help with my projects that keep getting random 404 errors. The 404 errors have a very negative impact on the seo of my websites.
I am running a project build with nextjs 14, that is connected with 100+ domains.
When visiting the individual sites, i receive at random times 404 responses. When reloading the sites, everything loads.
Here are some logs that i get:


Here is a snipped of my next.config.js:
/** @type {import('next').NextConfig} */const nextConfig = { images: { remotePatterns: [ { protocol: 'http', hostname: 'localhost', }, { protocol: 'https', hostname: 'd30hkkk8vkn602.cloudfront.net', }, { protocol: 'https', hostname: 'dtwaeonhht2im.cloudfront.net', }, { protocol: 'https', hostname: 'd3l18bqyuff3oz.cloudfront.net', }, { protocol: 'https', hostname: 'lh3.googleusercontent.com', }, ], }, webpack(config) { config.module.rules.push({ test: /\.(woff|woff2|eot|ttf|otf)$/i, type: 'asset/resource', generator: { filename: 'static/fonts/[name][ext]', }, }); return config; }, async rewrites() { return [ { source: '/media/:path*', destination: `${process.env.NEXT_PUBLIC_CDN_BASE_URL}/:path*`, }, ]; }, async redirects() { return [ { source: '/leave-a-review', destination: 'https://reviews.mavensdeli.com', permanent: false, basePath: false, }, ]; },};
module.exports = nextConfig;
// Injected content via Sentry wizard below
const { withSentryConfig } = require('@sentry/nextjs');
module.exports = withSentryConfig( module.exports, { // For all available options, see: // https://github.com/getsentry/sentry-webpack-plugin#options
// Suppresses source map uploading logs during build silent: true, org: '***', project: ***', }, { // For all available options, see: // https://docs.sentry.io/platforms/javascript/guides/nextjs/manual-setup/
// Upload a larger set of source maps for prettier stack traces (increases build time) widenClientFileUpload: true,
// Transpiles SDK to be compatible with IE11 (increases bundle size) transpileClientSDK: true,
// Uncomment to route browser requests to Sentry through a Next.js rewrite to circumvent ad-blockers. // This can increase your server load as well as your hosting bill. // Note: Check that the configured route will not match with your Next.js middleware, otherwise reporting of client- // side errors will fail. // tunnelRoute: "/monitoring",
// Hides source maps from generated client bundles hideSourceMaps: true,
// Automatically tree-shake Sentry logger statements to reduce bundle size disableLogger: true,
// Enables automatic instrumentation of Vercel Cron Monitors. // See the following for more information: // https://docs.sentry.io/product/crons/ // https://vercel.com/docs/cron-jobs automaticVercelMonitors: true, },);
I changed the primary function region to Frankfurt, since most of my sites are located in Europe:

I would really apreciate any kind of help. I also created a ticket in vercel support center but nobody is responding.