Does CSS_PRECONNECT_FONT_ORIGINS affect my score?

No. It is a detection rule: it runs, appears in your report and never penalises you. "Third-party style origins are preconnected" 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_PRECONNECT_FONT_ORIGINS 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

Third-party style origins are preconnected

CSS_PRECONNECT_FONT_ORIGINS

A stylesheet on another origin costs a DNS lookup, a TCP handshake and a TLS negotiation before the first byte, all of it blocking render. A preconnect hint overlaps that with HTML parsing.

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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_PRECONNECT_FONT_ORIGINS affect my score?: No. It is a detection rule: it runs, appears in your report and never penalises you. "Third-party style origins are preconnected" 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_PRECONNECT_FONT_ORIGINS 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.

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