Site seems to be hugged to death. https://web.archive.org/web/20260830100336/https://git.zx2c4...
Or it maybe rejects invalid Referer: header? Try https://git.zx2c4.com/ directly from browser
It is available but sometimes got rate limit due to AI crisis
The web archive link, made available since the featured page has been hugged to death, has been hugged to death.