Global Performance
6/6 locations ✓High global latency — average 3236ms across 6 locations, fastest from New York (1914ms), slowest from Sao Paulo (4086ms). No CDN detected. Cache-Control header is missing. 6 locations above the 500ms target.
Audit overview
Compliance needs attention; the rest of the categories are in good shape.
Fix Priority Matrix
5 findingsQuick Wins
3High impact, low effort — start here.
Strategic
2High impact, requires investment.
Easy Improvements
0Small gains, minimal effort.
Nothing in this quadrant — good news.
Deprioritize
0Low impact, high effort — do last.
Nothing in this quadrant — good news.
Screenshots
Top Priorities (5)
Content-Security-Policy header is missing
Without a CSP, a single XSS bug can exfiltrate everything your users type — including credentials.
HSTS header is missing
Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.
No Content-Security-Policy header found
Without a CSP, a single XSS bug can exfiltrate everything users type — credentials, payment data, session tokens.
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.
11 third-party resources (61% of weight)
Informational: third-party resource count and their share of page weight. High share caps perf gains from frontend optimization.
Business case
What fixing the audit's findings is worth -- and what ignoring them keeps costing.
Return on investment
$642 investment → $9,510/month returns + USD 157,500 risk avoided
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
5 barrier(s) likely increasing bounce by ~22%.
- Page takes 5.7s to loadUsers abandon at ~3s — you're 3.2s over the 2.5s threshold→ Optimize render-blocking resources, preload the hero image, and compress images
- No HSTS headerReturning visitors are briefly exposed to downgrade attacks on first request→ Set Strict-Transport-Security: max-age=31536000; includeSubDomains
- No Content-Security-Policy headerHigher XSS blast radius — one compromised script can exfiltrate the checkout form→ Ship a reporting-only CSP first, then enforce once violations are clean
- No Open Graph tagsLinks shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop→ Add og:title, og:description, og:image, og:url to the page head
- No skip-to-content linkKeyboard and screen-reader users must tab through the entire header on every page→ Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
Remediation cost
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.
Rates reflect fully-loaded developer cost including overhead
Cost of inaction
Compliance Risk
$157,500
- No privacy policy link detectedCCPA/CPRA: USD 2,500 – USD 7,500
- Trackers detected but no cookie policy foundCCPA/CPRA: USD 2,500 – USD 7,500
- Trackers detected but no privacy policy foundCCPA/CPRA: USD 2,500 – USD 7,500
- Privacy Policy not detectedCCPA/CPRA: USD 2,500 – USD 7,500
- No <main> landmark foundADA Title III: USD 25,000 – USD 150,000
- Skip navigation link is missing (WCAG 2.4.1)ADA Title III: USD 25,000 – USD 150,000
- Heading level skipped: H2 → H4 (missing H3)ADA Title III: USD 25,000 – USD 150,000
Bounce-Rate Cost
$5,191 /mo
+21.6pp bounce · ~2,163 lost visitors/mo
CPC: USD 2.40
Bandwidth Waste
$0.20 /mo
2442.8 MB/mo × 0.080 USD/GB
- Optimize transfer: save ~244 KB per page loadSaves $0.20/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.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 4 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
Your data stays in your browser — nothing is sent to our servers
Lighthouse
Mobile
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
4.22 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.73 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
148 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.54 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.
5.95 s
Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.32 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.90 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.61 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.
1.90 s
Categories
8Performance
11 third-party resources (61% of weight)
Security
Content-Security-Policy header is missing
Accessibility
No <main> landmark found
SEO
All checks pass
Infrastructure
All checks pass
Compliance
All checks pass
Content
All checks pass
Sustainability
All checks pass
How you compare
Where this site stands against peers running the same stack.
Top 10% of Bootstrap sites score 86+ on Compliance; you're at 63 — closing this gap is the highest-leverage improvement.
Technology stack
Bootstrap 5.3.7, on Python, hosted on gunicorn, with jsDelivr CDN
Stack Architecture
All Detected Technologies (13)
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Python is an interpreted and general-purpose programming language.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Bootstrap Icons is a growing library of SVG icons that are designed by @mdo and maintained by the Bootstrap Team.
Font Awesome is a font and icon toolkit based on CSS and Less.
Facebook Login is a way for people to create accounts and log into your app across multiple platforms.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Observations (2)
No build tool detected
A framework (Bootstrap) 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
13 technologies identified. A complex stack increases maintenance burden and attack surface. Consider whether all components are actively needed.
Show your score
Drop this badge on your README, marketing site, or status page. It auto-updates every time the audit re-runs and links back to this report.
This badge auto-updates with your latest scan result.
[](https://beavercheck.com/results/ecb18faf-a9af-43b6-9e8f-e21b494ef9e2)<a href="https://beavercheck.com/results/ecb18faf-a9af-43b6-9e8f-e21b494ef9e2"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fbridgeslab.sph.umich.edu" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fbridgeslab.sph.umich.eduFix Plan
Three-week roadmap to ship the audit's findings, with one-click copy targets for your tracker.
Three-week fix plan
2 sprints · 6h total → projected B (89)
Sprint 1: Quick Wins
+5Highest ROI — low effort, high impact
- · No <main> landmark found
- · HSTS header is missing
- · 11 third-party resources (61% of weight)
Sprint 2: Core Fixes
+2Medium effort, high structural impact
- · Content-Security-Policy header is missing
- · No Content-Security-Policy header found


