# Delivery check fails

The delivery check loads a small test image from your public address, as a visitor's browser would. If it fails, the address doesn't lead to a public copy of your file yet. Your site keeps loading images from your server meanwhile. The message tells you which part to fix.

## "We couldn't find [domain]."

Check the domain setup at your DNS provider. The domain needs a DNS record that points to your storage or CDN. If you added it just now, wait a few minutes and test again.

## "[domain] doesn't have a working HTTPS certificate yet."

If you connected the domain just now, its certificate can take a few minutes. Test again soon. Otherwise, check the domain's SSL settings.

## "[domain] refused to show the test file."

The bucket isn't public yet:

- **Cloudflare R2:** connect the domain in R2 → your bucket → Settings, or turn on the r2.dev public URL for testing.
- **Amazon S3:** turn off Block Public Access for this bucket and add a bucket policy that allows `s3:GetObject` on its files.
- **Backblaze B2:** set Files in Bucket to Public.
- **MinIO:** allow anonymous downloads, for example with `mc anonymous set download`.
- **Others:** make the bucket, or its files, publicly readable.

## "The test file wasn't found at [domain]."

The address doesn't lead to this bucket. Check that the domain or CDN is connected to the right one.

## "[domain] redirects to another address."

Use the final address, the one it redirects to, as your delivery address.

## "Browsers block http images on https pages."

Use the `https://` version of your delivery address. If it doesn't load, turn on HTTPS for that domain first.

## "A different file came back."

The address may lead to another bucket or website, or a CDN may be changing images. Check that it serves your bucket unchanged.

## "Images load, but web fonts and scripts ... cannot read files."

This is a CORS note, and images on your pages still work. You only need a CORS rule if you offload fonts, or a theme or plugin loads media with scripts. Each [setup guide](/docs/connect-a-provider) has an optional CORS step.

Updated 2026-11-06.

Source: https://www.offloft.com/docs/troubleshooting/delivery-check-fails