Detect Speculative Loading
Performance plugin from the WordPress Performance Team, which adds support for the Speculation Rules API, by which certain URLs are dynamically prefetched or prerendered based on user interaction.
Detection looks at meta tags across 1 fingerprint rules among the site's public responses.
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Websites using Speculative Loading
Loading website list…
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Signal classes
PluginView evaluates public page signals in these classes when identifying Speculative Loading. Individual fingerprint rule bodies are proprietary and are not published.
- Meta tags
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Example public indicators for Speculative Loading
Illustrative indicators derived from public catalog metadata for Speculative Loading. A live scan may match additional proprietary rules beyond these examples.
- generator: speculation-rules ?
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Speculative Loading signature (1 rules) at the time of the scan.
- Does not establish
- A sitewide install of Speculative Loading, an active vendor contract, exclusive use, or that Speculative Loading is still in place today.
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How to check a site for Speculative Loading
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Speculative Loading signals.
- 2. PluginView reads only public responses (meta tags) and scores them against the Speculative Loading signature set (1 rules).
- 3. Review the confidence score and text explanation for Speculative Loading on the results page.
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FAQ: detecting Speculative Loading
- Can PluginView detect Speculative Loading without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Speculative Loading — typically meta tags. It does not bypass authentication or paywalls.
- What category is Speculative Loading?
- Speculative Loading is classified under WordPress plugins, Performance in the PluginView directory.
- How many fingerprint rules cover Speculative Loading?
- This reference currently tracks 1 fingerprint rule across meta tags. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Speculative Loading?
- Illustrative public indicators for Speculative Loading include generator: speculation-rules ?. A live scan may match additional proprietary rules beyond these examples.
