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Perform - Core Web Vitals Analyzer

ExtensionDeveloper Tools3 users
Item media 1 (screenshot) for Perform - Core Web Vitals Analyzer

Overview

Real-time page performance metrics: LCP, FCP, CLS, INP, TTFB & resource analysis. Built by August SEO.

View Core Web Vitals at a Glance (LCP, FCP, CLS, INP, TTFB) for any page, directly from your toolbar. Analyze resource loading, identify slow scripts, and audit the impact of third-party resources. Designed for SEO professionals, marketers, developers, and website owners. Features: - Real-time LCP badge on every tab - Core Web Vitals dashboard - Resource breakdown by type (JS, CSS, images, fonts) - Slowest resources identification - Third-party domain analysis - SPA navigation support

Details

  • Version
    1.0.0
  • Updated
    January 6, 2026
  • Size
    20.67KiB
  • Languages
    English
  • Developer
    August SEO, LLC
    12325 E Valleyway Ave Spokane Valley, WA 99216-0927 US
    Website
    Email
    mail@augustseo.com
    Phone
    +1 509-731-3334
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    056558739

Privacy

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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