Optimisation text services like Gmetrix and Pingdom Tools often provide feedback like 'inline script block #5', what exactly does this mean and how do you go about identifying and solving this problem.
As noted in Seb's comment immediately under the question, this indicates there is a script or asset request blocking your page being rendered.
Examples of such scripts/services could be:
- ShareThis or AddThis
- Salesforce or Hubspot injected forms
- Campaign/Marketing tracking services such as DoubleClick, Floodlight, CrazyEgg
- 3rd-Party Plugins and Embeds