Detect Formstack

Establishes

The listed vendor-controlled browser component was present and active on the scanned page at scan time.

Does not establish

It does not prove a sitewide installation, current commercial contract, backend-only use, exclusive use, or production transaction volume.

Observe a live browser request, loaded script, or iframe to the listed unique vendor endpoint. Source-text-only matches do not qualify.

Best pages to check: Contact, survey, signup pages

1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Formstack signals (prefer: Contact, survey, signup pages).
2. 2. PluginView reads only public responses and scores them against proprietary Formstack fingerprints. Rule bodies and identifiers are not published.
3. 3. Review the confidence score and text explanation for Formstack on the results page.

Can PluginView detect Formstack without logging in?

Yes. PluginView only reads publicly accessible responses when checking for Formstack. It does not bypass authentication or paywalls.

What category is Formstack?

Formstack is classified under Form builders, Forms, Scheduling & Surveys in the PluginView directory.

Does PluginView publish Formstack 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.

Which pages are best for detecting Formstack?

For Formstack, start with: Contact, survey, signup pages.