Skip to main content

Documentation Index

Fetch the complete documentation index at: https://docs.squirrelscan.com/llms.txt

Use this file to discover all available pages before exploring further.

Identifies chains of dependent resources that delay rendering
Rule IDperf/critical-request-chains
CategoryPerformance
ScopePer-page
Severitywarning
Weight5/10

​
Solution

Critical request chains are sequences of dependent network requests that must complete before the page can render. Reduce chain depth by: 1) Inlining critical CSS instead of linking external files. 2) Adding async or defer to non-critical scripts. 3) Avoiding CSS @import — use <link> tags instead. 4) Using <link rel='preload'> for critical resources. 5) Reducing the number of render-blocking resources in <head>.

​
Enable / Disable

​
Disable this rule

squirrel.toml
[rules]
disable = ["perf/critical-request-chains"]

​
Disable all Performance rules

squirrel.toml
[rules]
disable = ["perf/*"]

​
Enable only this rule

squirrel.toml
[rules]
enable = ["perf/critical-request-chains"]
disable = ["*"]