Detect Priority Hints
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
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Websites using Priority Hints
6,673 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| twitter.com | 8/6/2026 |
| reddit.com | 8/6/2026 |
| microsoft.com | 8/6/2026 |
| github.com | 8/6/2026 |
| zoom.us | 8/6/2026 |
Whole list · $266.92 (6,673 × $0.04)
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Priority Hints signature at the time of the scan.
- Does not establish
- A sitewide install of Priority Hints, an active vendor contract, exclusive use, or that Priority Hints is still in place today.
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How to check a site for Priority Hints
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Priority Hints signals.
- 2. PluginView reads only public responses and scores them against proprietary Priority Hints fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for Priority Hints on the results page.
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FAQ: detecting Priority Hints
- Can PluginView detect Priority Hints without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Priority Hints. It does not bypass authentication or paywalls.
- What category is Priority Hints?
- Priority Hints is classified under Performance in the PluginView directory.
- Does PluginView publish Priority Hints 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.
