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

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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>.

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Enable / Disable

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Disable this rule

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

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Disable all Performance rules

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

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Enable only this rule

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