Detect Blitz.js
Blitz.js is a web development framework that uses Next.js and React and includes features for authentication, authorization, and database integration to simplify the creation of high-performance and scalable web applications.
Detection looks at response headers, javascript globals across 3 fingerprint rules among the site's public responses.
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Websites using Blitz.js
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Signal classes
PluginView evaluates public page signals in these classes when identifying Blitz.js. Individual fingerprint rule bodies are proprietary and are not published.
- Response headers
- JavaScript globals
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Example public indicators for Blitz.js
Illustrative indicators derived from public catalog metadata for Blitz.js. A live scan may match additional proprietary rules beyond these examples.
- x-powered-by: Blitz.js??
- __BLITZ_MIDDLEWARE_HOOKS
- __BLITZ_SUSPENSE_ENABLED
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Blitz.js signature (3 rules) at the time of the scan.
- Does not establish
- A sitewide install of Blitz.js, an active vendor contract, exclusive use, or that Blitz.js is still in place today.
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How to check a site for Blitz.js
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Blitz.js signals.
- 2. PluginView reads only public responses (response headers, javascript globals) and scores them against the Blitz.js signature set (3 rules).
- 3. Review the confidence score and text explanation for Blitz.js on the results page.
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Commonly implies
A confirmed Blitz.js match also implies these technologies are present.
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FAQ: detecting Blitz.js
- Can PluginView detect Blitz.js without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Blitz.js — typically response headers, javascript globals. It does not bypass authentication or paywalls.
- What category is Blitz.js?
- Blitz.js is classified under Web frameworks in the PluginView directory.
- How many fingerprint rules cover Blitz.js?
- This reference currently tracks 3 fingerprint rules across response headers, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Blitz.js?
- Illustrative public indicators for Blitz.js include x-powered-by: Blitz.js??; __BLITZ_MIDDLEWARE_HOOKS; __BLITZ_SUSPENSE_ENABLED. A live scan may match additional proprietary rules beyond these examples.
