What does a 'Web server is down' error code 521 signify?

By: USER8322
23 Agustus 2025 Support 5 minutes
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Grade: Education Subject: Support
What does a 'Web server is down' error code 521 signify?
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A 'Web server is down' error code 521 means that the web server itself refused a connection from Cloudflare. This typically indicates that the origin web server is unavailable, either due to being offline, overloaded, or misconfigured.
Answered on 23 Agustus 2025

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