Does CSS_FONT_PRELOAD affect my score?

No. It is a detection rule: it runs, appears in your report and never penalises you. "Critical fonts are preloaded" is information about the page rather than a defect - most pages are not expected to satisfy it.

What does SPECIFICATION confidence mean?

A standard says so: HTML, WCAG, an RFC or Google's own documentation. Confidence is a declared tier rather than a per-rule number, so every rule backed by the same class of evidence carries the same weight - which is what makes the score reproducible instead of hand-tuned.

How do I check CSS_FONT_PRELOAD on my own site?

Paste your URL into the box above and it runs only this rule, usually in a couple of seconds. It is also included in the CSS checker and in a full scan.

CSSLow Detection only

Critical fonts are preloaded

CSS_FONT_PRELOAD

A webfont is discovered only after the CSS that references it has downloaded and parsed, which is late. Preloading moves the request to the start and removes a round trip from first text paint.

Free, no signupNo account, no card
No AI in the score986 deterministic rules
Nothing publishedYour scans stay yours
Answers in secondsQuick scan, no browser

How this rule is weighted

Importance: 3 / 10; How much this matters relative to other rules.
Confidence: SPECIFICATION; A standard says so: HTML, WCAG, an RFC or Google's own documentation.
Severity: info; How the finding is presented when it fails.
Scoring: Excluded; Reported in the report, never penalised.

Impact is importance multiplied by the confidence tier’s weight — SPECIFICATION 1.0, RESEARCH 0.7, EMERGING 0.3, EXPERIMENTAL 0.1. Two rules backed by the same class of evidence therefore always carry the same weight, which is what makes the score reproducible rather than hand-tuned.

Questions about this rule

Does CSS_FONT_PRELOAD affect my score?: No. It is a detection rule: it runs, appears in your report and never penalises you. "Critical fonts are preloaded" is information about the page rather than a defect - most pages are not expected to satisfy it.
What does SPECIFICATION confidence mean?: A standard says so: HTML, WCAG, an RFC or Google's own documentation. Confidence is a declared tier rather than a per-rule number, so every rule backed by the same class of evidence carries the same weight - which is what makes the score reproducible instead of hand-tuned.
How do I check CSS_FONT_PRELOAD on my own site?: Paste your URL into the box above and it runs only this rule, usually in a couple of seconds. It is also included in the CSS checker and in a full scan.

Related CSS rules

Run the CSS checker All 986 rules

Critical fonts are preloaded

How this rule is weighted

Questions about this rule

Tags

Related CSS rules

Critical fonts are preloaded

How this rule is weighted

Questions about this rule

Tags

Related CSS rules