Find the performance regressions costing your store conversions.
Detect what changed, what got slower, what third-party code caused it, and protect your revenue-critical checkout paths before sales drop.
Inspect Your Storefront in Seconds
Measure server response TTFB, detect blocking marketing pixels, and model conversion sensitivity based on published retail benchmarks.
Audit any storefront's performance & checkout friction
Enter a store URL to inspect Core Web Vitals, TTFB latency, third-party marketing trackers, and economic impact.
What Every PulseAudit Diagnostic Delivers
We avoid vague scores. Every finding links an observed network reality to an actionable engineering patch.
TTFB, DNS & TLS Profiling
Isolate whether latency originates from uncached backend Liquid/PHP rendering or external DNS/TLS negotiation delays.
LCP, CLS & Total Blocking Time
Real Chromium laboratory measurements paired with Google Chrome UX Report (CrUX) 28-day real user percentiles.
Third-Party Tracker Audit
Identify client-side Meta, TikTok, Klaviyo, and review tags that block the main thread and recommend server-side CAPI migration.
Correlate Code Deployments with Speed Regressions
When a marketing tag update or theme change adds 300ms of checkout delay, PulseAudit pinpoints the exact hour and commit responsible.
Third-Party Marketing Scripts Freeze Checkout Interactions
Advertising pixels, chat widgets, and review carousels execute synchronously on your customer's mobile device, stalling Add to Cart and payment interactions.
Blocks mobile cart drawer opening. Remediate via Meta Conversions API (CAPI).
Session recording DOM mutations inflate mobile INP by up to 180ms.
Synchronous container loading delays Largest Contentful Paint.
From One-Time Audit to 24/7 SLA Protection
One-off speed tests only give you a point-in-time snapshot. Connected Commerce Monitoring ensures that new theme releases, app installations, and CDN configuration changes never quietly degrade your conversion rate.
Scheduled automated tests checking TTFB, LCP, and SSL handshakes.
Correlate performance spikes directly with GitHub or Shopify theme commits.
High-signal notifications to Slack, PagerDuty, or Email on latency violations.
Public Research & Industry Benchmarks
Open-access statistical benchmarks analyzing Core Web Vitals pass rates and script bloat across 58,200 active stores.
Commerce Performance Index 2026
Shopify vs WooCommerce vs Magento: real-world pass rates and script transfer weights. Includes downloadable CSV/JSON dataset.
COHORT STUDYShopify CWV: Why 61% of Stores Fail
Analysis of 25,400 Shopify stores. The statistical correlation between app density and INP checkout friction.
SCRIPT INDEXTop 50 Scripts: CPU Weight Index
Laboratory measurement of the exact main-thread blocking time (TBT) of popular marketing, review, and chat tags.
How the Revenue Sensitivity Model Works
We combine observed network latency deltas with published research from Deloitte Digital ("Milliseconds Make Millions") and Google CrUX.
Every diagnostic report provides bounded sensitivity projections rather than fabricated single-point claims. Learn more about our modeling standards in our Methodology Documentation.