Detect web-vitals
The web-vitals JavaScript is a tiny, modular library for measuring all the web vitals metrics on real users.
01
Websites using web-vitals
47 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| etsy.com | 8/6/2026 |
| variety.com | 8/7/2026 |
| rollingstone.com | 8/7/2026 |
| hollywoodreporter.com | 8/6/2026 |
| glassdoor.com | 8/6/2026 |
02
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known web-vitals signature at the time of the scan.
- Does not establish
- A sitewide install of web-vitals, an active vendor contract, exclusive use, or that web-vitals is still in place today.
03
How to check a site for web-vitals
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest web-vitals signals.
- 2. PluginView reads only public responses and scores them against proprietary web-vitals fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for web-vitals on the results page.
04
FAQ: detecting web-vitals
- Can PluginView detect web-vitals without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for web-vitals. It does not bypass authentication or paywalls.
- What category is web-vitals?
- web-vitals is classified under JavaScript libraries, RUM in the PluginView directory.
- Does PluginView publish web-vitals 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.
