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How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte - How to Fix DNS Probe Finished NXDOMAIN-Fix Cloudflare 521 Error: Step-by-Step

2026-07-28 11:44:57
How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte - How to Fix DNS Probe Finished NXDOMAIN-Fix Cloudflare 521 Error: Step-by-Step

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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