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API preconnect

Performance tip


New version available

This v2 document is obsolete. Please see the current v3 document here.

API pre-connect is recommended for improved request timings. To enable it, place the preconnect directive as early as possible in your head tag:

  <link rel="preconnect" href="https://cdn.fpjs.io">
  <link rel="preconnect" href="https://api.sjpf.io">
  <link rel="preconnect" href="https://api.fpjs.io">
  ... styles, js etc

Note that you always need to pre-connect to api.sjpf.io and api.fpjs.io. If you're using the CDN version of the script, you also need to pre-connect to cdn.fpjs.io.

If you're using the EU API, use this pre-connect URL: https://eu.api.fpjs.io

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