Storefront monitoring active

Every error. Every broken script.
Every sale you're losing.

Bloodhound monitors your Shopify store in real time. It catches every JavaScript error, times every third-party script, and puts a price on every issue — so you fix what matters first.

<5KB
Invisible to your store
0ms
Render blocking
5
Web Vitals, all of them
p75
The percentile Google uses

Shopify Analytics shows
you revenue dropped.
It can't tell you why.

Broken add-to-cart. Payment widget crashing. Third-party app throwing exceptions on every page load. None of it visible. All of it expensive.

Deloitte found that a 100ms speed improvement increases retail conversions by 8.4% and AOV by 9.2%. Google found that as load time goes from 1s to 3s, bounce rate increases by 32%. These aren't edge cases. They're your store, right now.

And that's just performance. Then there are the silent errors — the broken add-to-cart on mobile Safari, the payment widget crashing on slow connections, the third-party app throwing exceptions on every single page load. None of it visible in Shopify Analytics. You see conversion rate dip. You don't know why.

100ms

+8.4% conversions

A 100ms speed improvement increases retail conversion rates by 8.4%

53%

Visitors leave at 3s

53% of mobile visitors abandon a page that takes longer than 3 seconds to load

70%

Longer sessions when fast

Sites that load within 5 seconds see 70% longer average sessions and 35% lower bounce rates

1%

Sales lost per 100ms

Every 100ms of added latency costs 1% in sales, per Amazon's internal testing

3rd

Party scripts dominate

Third-party requests account for 45% of all requests on median web pages, with significant CPU impact

The average Shopify store runs 15–25 third-party scripts. Each one is a risk you can't see coming. Bloodhound names them, times them, and tells you which ones to kill.

One install.
Full visibility.

Under 5KB gzipped. Deferred. Non-blocking. Install once and see everything — every page, every visitor, every script.

01

JS Error Tracking

Bloodhound catches every JavaScript error, promise rejection, and failed network request — including console.error calls. Groups them into issues with stack traces, affected session counts, and revenue at risk. Console.warn capture on Pro.

window.onerror + unhandledrejection
02

Core Web Vitals

All five metrics from real visitor traffic. p75 scoring against Google's thresholds with 30-day trend charts — so you see regressions before they compound.

PerformanceObserver API
03

Script Analytics

Every JavaScript file on your storefront, ranked by damage. Blocking time, transfer size, origin. Find the app that's costing you 800ms of LCP and kill it.

Resource Timing API
04

Revenue Attribution

Every issue gets a price tag. Affected sessions × your conversion rate × your AOV. Fix the most expensive bug first. Stop guessing what matters.

sessions × CR × AOV
05

Issue Lifecycle

Bloodhound groups errors into issues and tracks them from new to resolved. Auto-regression detection fires the moment a fixed bug returns — before a customer tells you.

auto-regression detection
06

Checkout monitoring

Shopify locks checkout off to every app. We use the Web Pixel to get inside anyway. Cart add, checkout start, payment submit, purchase — full funnel where every other tool stops.

Web Pixel + Customer Events API
07

Alerts

Bloodhound pushes new issues and regressions to Slack, Teams, Discord, or any webhook. Configurable cooldown so you're informed, not spammed. Minutes, not days.

Slack + Teams + Discord + webhook

The only monitor
that audits your store

Error trackers are everywhere. None of them audit your supply chain. Every Bloodhound install runs a weekly security scan of your storefront — automatically.

S1

Secret leakage scanner

Scans your scripts weekly for exposed API keys — Shopify, Klaviyo, AWS, GitHub, Stripe. If one leaks, you'll know before anyone exploits it.

Business plan
S2

Vulnerable library detection

Flags outdated jQuery, Handlebars, Lodash, AngularJS, Bootstrap on your storefront with published CVEs. Exactly which file, exactly which version.

Business plan
S3

Header + CSP audit

Weekly scan of your security response headers (CSP, HSTS, X-Frame-Options, Permissions-Policy) scored 0-100 with specific remediations. Live-captures CSP violations and mixed-content loads from real traffic.

Business plan
S4

Supply-chain provenance

Define which script origins you trust. Any new one loading on your storefront is flagged immediately — early warning for Magecart-style injection attacks.

Business plan
S5

Apps audit

Ranks the third-party apps on your storefront by main-thread blocking time. Named recognition for Klaviyo, Hotjar, Yotpo, Tidio, Intercom and 40+ more — plus uninstall guidance for the worst offenders.

Business plan
S6

Per-store API tokens

Rotate-able bearer tokens scoped to your store. Full programmatic access to issues, CWV, scripts, and security findings for your own pipelines.

Enterprise

Five minutes to full visibility

No developers. No SDK config. One-click install from the Shopify App Store — the Web Pixel auto-installs and data starts flowing immediately.

1

Install the app

One-click install from the Shopify App Store. Free plan available.

2

Auto-install + one toggle

The Web Pixel auto-installs for checkout monitoring. Toggle the theme app embed in your theme editor to cover your storefront.

3

Traffic generates data

Real visitor sessions start producing CWV metrics, error events, and script timings.

4

View the dashboard

Errors, performance scores, and script analytics appear in the embedded Shopify admin dashboard.

5

Set up alerts

Connect Slack, Teams, or Discord to get notified on new issues and regressions.

What the script captures

A lightweight, non-blocking storefront script that captures everything you need without impacting your store's performance.

Error Capture

  • window.addEventListener('error') for runtime exceptions
  • unhandledrejection for async/promise failures
  • fetch() wrapper intercepts 4xx/5xx responses
  • Failed network requests (fetch_fail events)
  • Source file, line number, column number
  • Full stack trace (up to 2KB)
  • Third-party origin detection

Performance Metrics

  • PerformanceObserver for LCP, CLS, INP, FCP
  • Navigation Timing API for TTFB
  • Resource Timing for all script elements
  • Transfer size, load duration, blocking time
  • First-party vs third-party classification
  • Page template detection (product, collection, cart, etc.)

Data Transport

  • Batched every 5 seconds via sendBeacon
  • Survives page navigation and tab close
  • Fetch with keepalive as fallback
  • Client-side dedup by error signature
  • Max 50 errors per session cap
  • Max 20 CWV measurements per session

Session Context

  • Anonymous session ID (no PII)
  • Browser user agent string
  • Device type, screen width, connection speed
  • Page URL and template type
  • Shopify shop domain (window.Shopify.shop)
  • Timestamp for every event
  • Template: home, product, collection, cart, checkout, search, blog, account

How Bloodhound compares

The only Shopify app that combines error tracking, CWV monitoring, and script analytics in one install.

FeatureBloodhoundShopify NativeCatchJSRaygunSentry
JS Error Tracking
Real-time Data36h delay
One-click Shopify InstallBuilt-inDev setup
Slack / Teams / DiscordBrowser only
Device & Connection BreakdownDevice only
Public APIGraphQL
CSV/JSON Export
Console.error Capture
Free TierFree$49/mo$60/moLimited
Core Web Vitals (5 metrics)3 onlyVia tracing
Checkout funnel monitoringPixel only
Third-party Script Analytics
Revenue Attribution
Security header audit
Secret leakage scanner
Vulnerable library detection
Supply-chain provenance
Apps weight audit
Pro Pricing$49N/A$89/mo$120/mo$26/mo

Start free.
Upgrade when it pays off.

Free plan forever. 14-day trial on Pro and Business. Billed through Shopify — no contracts, cancel any time, prorated on downgrade.

Free
$0
Get started with storefront monitoring
  • Core Web Vitals (5 metrics)
  • JS error capture & dedup
  • Checkout funnel (Web Pixel)
  • 7-day data retention
  • 1 alert destination
  • 10,000 events / month
Get started
Business
$249 /mo
Monitoring + full security suite
  • Everything in Pro
  • Weekly security header audit
  • Secret leakage scanner
  • Vulnerable library detection
  • Supply-chain provenance allowlist
  • Apps weight audit with uninstall guidance
  • Unlimited retention · 500,000 events / month
  • Geographic breakdown · custom alert conditions
  • Weekly email reports · priority support
Start 14-day free trial
Enterprise
Custom
Multi-store, API, SLA
  • Everything in Business
  • Unlimited events
  • Per-store REST API access
  • Multi-store dashboard
  • Auto-reporting to Linear / Jira
  • Dedicated Slack channel
  • SLA guarantee
  • Single sign-on
Contact sales