Subsecond: Speed Check App Reviews

APP CATEGORY
Store Management
SCORE
0
TOTAL RATINGS
16
Install on Shopify!
0 USD

Subsecond: Speed Check App Description & Overview

Subsecond: Speed Check provides simple Real User Monitoring (RUM) for Shopify stores. Track all of the page speed web vitals metrics popularized by Google with one-click installation and a easy to read dashboard.

Many other solutions use synthetic page speed data that might differ from the real experience of your customers. Measuring the experience of real users is the best way to learn what changes should be made.

This app uses the web-vitals library for its metric definitions. Speed Check currently tracks:

  • First Contentful Paint (FCP)
  • Largest Contentful Paint (LCP)
  • First Input Delay (FID)
  • Cumulative Layout Shift (CLS)
  • Time to First Byte (TTFB)

The app is easy to set up and has no impact on page performance. Try it out today and let me know what you think!

Read More
  1. Why Subsecond: Speed Check app?
  2. Subsecond: Speed Check Comments & Reviews 2026
  3. Subsecond: Speed Check Screenshots & Images
  4. Subsecond: Speed Check App Alternatives

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App Name Subsecond: Speed Check
App Category Store Management
Published
App Price Price: Free
Support E-Mail [email protected]
App Website

Subsecond: Speed Check Features

Real user monitoring for page speed and web vitals.

Real users

Rely on data from your actual users instead of synthetic data from common analysis tools.

Realtime monitoring

Receive immediate feedback after making changes to your store.

All important metrics

Measure FCP, LCP, CLS, FID, and TTFB for all of your stores visitors.

IQ Test

Subsecond: Speed Check Comments & User Reviews 2026

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Subsecond: Speed Check App Tips, Tricks and Rules

What do you think subsecond speed check shopify app? Can you share with Subsecond company and people your complaints, experiences or thoughts about the app?

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Subsecond: Speed Check Screenshots & Images

Subsecond: Speed Check shopify app screenshot images, pictures.

Subsecond: Speed Check App Alternatives & Competitors

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POWR FAQ+ | Help Center 4.6
PixelMagic 0
Robo Product Importer 5
Fraud Filter 2.4
POS Membership 3