This Fastly troubleshooter for Magento users will guide you to the solutions, based on your response about the symptoms you see. Click on the questions to see the next options or answers.
a. YES – You have the message "Plugin VCL version is outdated! Please re-Upload. For the solution to this error, refer to Fastly Error: Plugin VCL version is outdated! Please re-Upload.
b. NO – Step 3.
digdid it return a record pointing to prod.magentocloud.map.fastly.net or one of the following IP addresses (taken from Magento DevDocs Update DNS configuration with production setting):
curl -svo /dev/null "https://website.com"in the CLI/terminal?
a. YES – This is likely a certificate issue. Visit the website in a browser and select the lock icon and look for a certificate expiration. Proceed to Step 6.
b. NO – Visit http://fastly-debug.com and share this information in a Magento support ticket.
a. YES – You need to renew your TLS certificate with the Certificate Authority (CA).
b. NO – You may not have a certificate at all. If you have Magento Commerce we recommend that you purchase a TLS certificate. If you are on Magento Commerce Cloud you can have a Domain-Validated Let’s Encrypt SSL/TLS certificate to serve secure HTTPS traffic from Fastly. See provision SSL/TLS certificates in Magento Developer Documentation for more information.