sIFR

sIFR is one of 19 technologies we detect in Font scripts.

detected by AwesomeTechStack audits

About sIFR

sIFR is a JavaScript and Adobe Flash dynamic web fonts implementation.

How we audit sIFR

We measure the detected version against sIFR's release history and grade the surrounding stack with a Lighthouse-grade quality audit. Weak or outdated links weigh more - one risky dependency can pull the whole score down.

How the score works

Audit any site that runs sIFR.

Enter a URL to score its stack for technology quality, version health, Lighthouse performance - and AI-readiness.

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