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https://once-upon-a-book-club.myshopify.com Export & share
Scanned
2026-10-19 20:02 UTC
Worker
🇪🇸 Madrid
Duration
2.0m
Vs prev
—

Global Performance

6/6 locations ✓

Excellent global latency — average 67ms across 6 locations, fastest from Singapore (26ms), slowest from Madrid (100ms). Shopify in front. Cache-Control header is missing.

Spain - Madrid
Full audit
100ms
DNS 34ms · TLS 24ms
United Stated - New York
74ms
DNS 8ms · TLS 14ms
Singapore - Singapore
26ms
DNS 6ms · TLS 9ms
Netherlands - Amsterdam
92ms
DNS 16ms · TLS 18ms
Brazil - Sao Paulo
38ms
DNS 11ms · TLS 10ms
United States - Santa Clara
71ms
DNS 40ms · TLS 15ms
CDN: Shopify · Avg TTFB: 67ms · Cache: No cache headers

Audit overview

Compliance and Sustainability need attention; the other categories are in good shape.

Fix Priority Matrix

5 findings

Quick Wins

4

High impact, low effort — start here.

Strategic

1

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Screenshots

DESKTOP + MOBILE
Desktop
Desktop screenshot
Mobile
Mobile screenshot

Your mail setup has problems.

once-upon-a-book-club.myshopify.com fails 2 mail checks: No DMARC record found, No SPF record found. This is the kind of misconfiguration that sends your mail to spam.

Get a full deliverability audit — €179, 48h →

Top Priorities (5)

Sorted by impact
Critical: 1

Content-Security-Policy header is missing

Without a CSP, a single XSS bug can exfiltrate everything your users type — including credentials.

Security › Security Headers
Critical: 2

HSTS header is missing

Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.

Security › Security Headers
Critical: 3

Page body has only 114 chars of text -- likely empty / placeholder

Security gaps expose your site and users to attacks, eroding trust.

Security › Empty Page Detection
Critical: 4

Page weighs 15.3 MB (8.1 MB transferred)

Informational: total page weight (uncompressed) and bytes actually transferred over the wire.

Performance › Page Weight Budget
Critical: 5

No <main> landmark found

Without a <main> landmark, screen-reader users can't skip past the navigation to the page content — every page starts with re-reading the menu.

Accessibility › Landmark Structure
What fixing these means. Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 31.6s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.
3 security gaps detected — browsers may warn visitors about your site.
Your LCP is 31.6s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.
1 accessibility issue excludes users who rely on assistive technology.

Business case

What fixing the audit's findings is worth -- and what ignoring them keeps costing.

Return on investment

$392 investment → $4,273/month returns + USD 157,500 risk avoided

Investment
$392
3.9 h · 4 findings
Monthly returns
$4,273
$51,278/yr
Payback
0.1 mo
+12992% Y1
Regulatory risk avoided USD 157,500
Or — fix only the top 3 findings
$375 → 0.1 mo payback · +13574% Y1
Optimistic scenario assuming the top 3 capture most of the upside. Real-world recovery typically falls between this projection and the full-fix ROI above.
$92 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Conversion barriers

8 barrier(s) likely increasing bounce by ~37%.

Barriers
8
3 crit 5 warn
Bounce delta
+37pp
added vs baseline
Score
55
C
Speed
2
Trust
2
Usability
1
Content
2
Nav
1
  • Page takes 31.6s to load
    Users abandon at ~3s — you're 29.1s over the 2.5s threshold
    → Optimize render-blocking resources, preload the hero image, and compress images
  • Page feels frozen for 1.4s
    Clicks on the primary CTA are ignored while JavaScript runs
    → Break up long tasks; defer non-critical JavaScript to post-hydration
  • No viewport meta tag
    Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature
    → Add <meta name="viewport" content="width=device-width, initial-scale=1">
  • No HSTS header
    Returning visitors are briefly exposed to downgrade attacks on first request
    → Set Strict-Transport-Security: max-age=31536000; includeSubDomains
  • No Content-Security-Policy header
    Higher XSS blast radius — one compromised script can exfiltrate the checkout form
    → Ship a reporting-only CSP first, then enforce once violations are clean

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Remediation cost

$392 3.9 developer hours at $100/hr
Quick wins
$92 3 fixes in ~55 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Team composition

Multiplier applied to dev hours to reflect QA, design, and PM overhead. Use Dev only for solo work; Full team for projects with formal review processes.

$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

Warning:Cost of inaction

$4,273 / month at risk ~$51,278 / year if left unfixed
Default is 10,000. Use your own number for accurate $-figures.

Compliance Risk

$157,500

ADA Title IIICCPA/CPRA
  • No privacy policy found (page links and common paths checked)
    CCPA/CPRA: USD 2,500 – USD 7,500
  • Trackers detected but no cookie policy found
    CCPA/CPRA: USD 2,500 – USD 7,500
  • Trackers detected but no privacy policy found
    CCPA/CPRA: USD 2,500 – USD 7,500

Bounce-Rate Cost

$4,271 /mo

+36.8pp bounce · ~3,682 lost visitors/mo

CPC: USD 1.16

Bandwidth Waste

$2.04 /mo

25478.8 MB/mo × 0.080 USD/GB

  • Optimize transfer: save ~2.5 MB per page load
    Saves $2.04/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

Lighthouse

Mobile

30
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

12.54 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

31.58 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.37 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.011

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

20.83 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

37.47 s

Desktop

60
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.40 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.81 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

152 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.022

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

6.58 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

7.90 s

Categories

8
Avg score 77.9

How you compare

Where this site stands against peers running the same stack.

Shopify · 134 peers
You 80
·
Avg 76
At average
0 50 100
Better than 64% of Shopify sites See full Shopify benchmark →
AOS · 89 peers
You 80
·
Avg 75
At average
0 50 100
Better than 71% of AOS sites See full AOS benchmark →

Technology stack

AOS, with Cloudflare CDN

14 technologies detected 4 stack layers 3 with CPE identifier Enterprise

Stack Architecture

Analytics
Microsoft Clarity Shop Pay
Ecommerce
Shopify
Framework
AOS Flickity HTTP/3 Judge.me Konva.js 10.3.0 Open Graph PhotoSwipe Sentry core-js 2.6.12 jQuery 3.6.0
CDN
Cloudflare

All Detected Technologies (14)

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Categories CDN Website https://www.cloudflare.com Detected by BeaverCheck Evidence Server header in redirect: cloudflare
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

Shopify is a subscription-based software that allows anyone to set up an online store and sell their products. Shopify store owners can also sell in physical locations using Shopify POS, a point-of-sale app and accompanying hardware.

Categories Ecommerce Website https://shopify.com Detected by BeaverCheck

JavaScript library to animate elements on your page as you scroll.

Categories JavaScript libraries Website https://michalsnik.github.io/aos/ Detected by BeaverCheck

Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.

Categories JavaScript libraries Website https://flickity.metafizzy.co Detected by BeaverCheck

HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.

Categories Miscellaneous Website https://httpwg.org/ Detected by BeaverCheck

Judge.me is a reviews app that helps you collect and display product reviews and site reviews with photos, videos and Q&A.

Categories Reviews Website https://judge.me Detected by BeaverCheck

Konva.js is a JavaScript library for creating 2D canvas applications on both desktop and mobile platforms, utilising HTML5.

Categories JavaScript graphics Website https://konvajs.org Detected by BeaverCheck

Open Graph is a protocol that is used to integrate any web page into the social graph.

Categories Miscellaneous Website https://ogp.me Detected by BeaverCheck

PhotoSwipe is an open-source gallery to support JavaScript-based image zooming.

Categories Photo galleries, JavaScript libraries Website https://photoswipe.com Detected by BeaverCheck

Sentry is an open-source platform for workflow productivity, aggregating errors from across the stack in real time.

Categories Issue trackers Website https://sentry.io/ Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

core-js is a modular standard library for JavaScript, with polyfills for cutting-edge ECMAScript features.

Categories JavaScript libraries Website https://github.com/zloirock/core-js Detected by BeaverCheck

jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.

Categories JavaScript libraries Website https://jquery.com Detected by BeaverCheck
This technology has a CPE identifier — check for known vulnerabilities Search NVD →

Microsoft's Clarity is a analytics tool which provides website usage statistics, session recording, and heatmaps.

Categories Analytics Website https://clarity.microsoft.com Detected by BeaverCheck

Shop Pay is an accelerated checkout that lets customers save their email address, credit card, and shipping and billing information so they can complete their transaction faster the next time they are directed to the Shopify checkout.

Categories Payment processors Website https://shop.app Detected by BeaverCheck

Observations (3)

Shopify storefront detected

Shopify handles hosting, SSL, and CDN automatically. Performance optimizations focus on theme code, app scripts, and image optimization. Check the Performance tab for third-party script impact.

No build tool detected

A framework (AOS) was detected but no bundler was identified. The build tool may not be detectable from output patterns, or the site may use the framework's built-in bundler.

Complex technology stack detected

14 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.

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Fix Plan

Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.

Three-week fix plan

2 sprints · 4h total → projected B (88)

Sprint 1: Quick Wins

+8

Highest ROI — low effort, high impact

4 findings 1h → B (88)
  • · Page weighs 15.3 MB (8.1 MB transferred)
  • · No <main> landmark found
  • · HSTS header is missing
  • · Page body has only 114 chars of text -- likely empty / placeholder

Sprint 2: Core Fixes

Medium effort, high structural impact

1 findings 3h → B (88)
  • · Content-Security-Policy header is missing

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