Describe the bug
mlc reports an error on a link that works in other link checkers and via the browser.

To Reproduce

1. On my project the README.md https://github.com/andrewdavidmackenzie/pigg/blob/master/README.md
2. mlc
3. Error reported

The following links could not be resolved:

./README.md (4, 1) => https://repology.org/project/pigg-x86-64-unknown-linux-gnu/versions

Expected behavior
mlc passes without error.

Desktop (please complete the following information):

• OS: macos 15.4 Apple Silicon
• Browser: brave (chrome)
• Version: mlc v0.21.0

Additional context
I run other link checkers in GH Actions and they pass. I wanted one to run locally in make, and mlc seemed good, but it's failing.

I tried throttling but same result.