Detect sIFR
sIFR is a JavaScript and Adobe Flash dynamic web fonts implementation.
01
Websites using sIFR
1 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| touchgraph.com | 8/5/2026 |
02
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known sIFR signature at the time of the scan.
- Does not establish
- A sitewide install of sIFR, an active vendor contract, exclusive use, or that sIFR is still in place today.
03
How to check a site for sIFR
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest sIFR signals.
- 2. PluginView reads only public responses and scores them against proprietary sIFR fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for sIFR on the results page.
04
FAQ: detecting sIFR
- Can PluginView detect sIFR without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for sIFR. It does not bypass authentication or paywalls.
- What category is sIFR?
- sIFR is classified under Font scripts in the PluginView directory.
- Does PluginView publish sIFR fingerprint rules?
- No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.
