sIFR is a JavaScript and Adobe Flash dynamic web fonts implementation.
Get all 104 companies using sIFR
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Companies
104
Top Country
US
Top Industry
Advertising
Adoption Insights
sIFR is used by 104 companies in our database, representing approximately 0.00% of all tracked websites. The most common industry using sIFR is Advertising, and adoption is strongest in US.
Top Countries Using sIFR
Top Industries Using sIFR
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Other Font scripts technologies sorted by adoption
How We Detect sIFR
The Web Radar detects sIFR by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is sIFR?+
sIFR is a JavaScript and Adobe Flash dynamic web fonts implementation.
How many companies use sIFR?+
104 companies in our database use sIFR, representing approximately 0.00% of all tracked websites.
What industries use sIFR the most?+
The top industries using sIFR are Advertising, Information Technology, Consulting.
What countries use sIFR the most?+
The top countries using sIFR are US, GB, PL.
Is sIFR popular?+
sIFR is used by 104 companies, making it a notable Font scripts technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: June 2026