Article ID: 125841, created on Jun 11, 2015, last review on Jun 11, 2015

  • Applies to:
  • Plesk 11.5 for Linux


CloudFlare installation is failing with the error below:

Error: Installation of CloudFlare for Parallels Plesk at http://domain.tld/CloudFlare failed. Non-zero exit status returned by script. 


Host API key is absent or invalid.


Enable Plesk debug logs and open http://domain.tld/CloudFlare to see, that CloudFlare installation is failed with the below error:

<p>Error Encountered:</p><p><ul><li>No or invalid host_key.</li></ul></p>

"Host API key" in CloudFlare application settings is not valid, and Plesk could not send request to CloudFlare site. Please contact CloudFlare support, in order to get a proper hosting API key. The following link can be referred for the details:

Please use this form to get Host API key from CloudFlare:

Search Words

Non-zero exit status returned by script

invalid host_key

No or invalid host_key


Error: Installation of CloudFlare for Parallels Plesk failed

Error Encountered

29d1e90fd304f01e6420fbe60f66f838 56797cefb1efc9130f7c48a7d1db0f0c a914db3fdc7a53ddcfd1b2db8f5a1b9c 01bc4c8cf5b7f01f815a7ada004154a2 0a53c5a9ca65a74d37ef5c5eaeb55d7f

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