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https://shotprep.io

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
96
GRADE
A
FIX
1
REVIEW
2
PASS
12
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
95
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.

927 ms

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

2.32 s

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

149 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.

3.95 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.

2.33 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
12 PASS 2 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
C
JS Execution Cost
Action
1179ms total JS execution
REVIEW
1179ms total JS execution
Warning::
https://shotprep.io/: 453ms CPU time
Warning::
https://shotprep.io/_next/static/chunks/0h4bq73pog...: 448ms CPU time
Info::
Unattributable: 216ms CPU time
Info::
https://shotprep.io/_next/static/chunks/0kt_.0j901...: 62ms CPU time
Info::
Third-party scripts: 216ms (18% of total)

Main Thread Breakdown

Script Evaluation 40% Other 29% Style & Layout 16% Script Parsing & Compilation 9% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://shotprep.io/453ms23ms31ms1st
https://shotprep.io/_next/static/chunks/0h4bq73pogmtb.js448ms402ms22ms1st
Unattributable216ms14ms0ms3rd
https://shotprep.io/_next/static/chunks/0kt_.0j901zal.js62ms41ms13ms1st
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
279 KB transferred, 22 requests
PASS
279 KB transferred, 22 requests
Info::
Page weighs 825 KB (279 KB transferred)
Info::
22 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
279 KB / 2.4 MB budget
279 KB transferred
22 requests
0.06 g CO2 per page load
JavaScript 177.8 KiB 64%
Fonts 47.6 KiB 17%
Images 22.6 KiB 8%
CSS 18.1 KiB 6%
HTML 9.2 KiB 3%
Other 2.9 KiB 1%
Other 1.3 KiB 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 23 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
1 fonts (48 KB)
PASS
1 fonts (48 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

48 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 927 ms LCP 2.3 shttps://shotprep.io/_next/static/media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff283afe278b6a6bb3c-s.p.0q... https://shotprep.io/_next/static/media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff2 — 47.6 KiB — 183 ms — font-display: swap
83afe278b6a6bb3c-s.p.0q... woff2 swap
Size 48 KB
Load time 183 ms
Start 154 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
JS Bundles
12 scripts, 27 KB unused
PASS
12 scripts, 27 KB unused
Warning::
https://shotprep.io/_next/static/chunks/0h4bq73pog...: 27 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 27 KB
27 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://shotprep.io/_next/static/chunks/0h4bq73pogmtb.js71 KB27 KB (39%)✓1st
https://shotprep.io/_next/static/chunks/0yb2wil16uz6h.js2 KB—✓1st
https://shotprep.io/_next/static/chunks/0qqfj-jiuuv6z.js9 KB—✓1st
https://shotprep.io/_next/static/chunks/0kt_.0j901zal.js37 KB—✓1st
https://shotprep.io/_next/static/chunks/0sl_nocd_j~un.js10 KB—✓1st
https://shotprep.io/_next/static/chunks/turbopack-0pscir.5j_kt~.js5 KB—✓1st
https://shotprep.io/_next/static/chunks/0q1zu-r~56xao.js4 KB—✓1st
https://shotprep.io/_next/static/chunks/0c~156nc_i3ig.js13 KB—✓1st
https://shotprep.io/_next/static/chunks/0m83qdxl1b-v7.js11 KB—✓1st
https://shotprep.io/_next/static/chunks/04cwj.x41g34d.js9 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
3 hints, 0 missing preconnects
PASS
3 hints, 0 missing preconnects
Info::
Page uses 3 resource hint(s)

Current Resource Hints

preconnect
—
preload
3
dns-prefetch
—
prefetch
—

3 resource hints configured

A+
Page Weight Inventory
22 resources · 279 KB · 27 KB savings available
PASS
22 resources · 279 KB · 27 KB savings available
Info::
Within 1MB page-weight target
Got: 279 KB
22 resources · 279.4 KiB · 0 third-party Within 1MB page-weight target
JavaScript 64% · 177.8 KiB
Font 17% · 47.6 KiB
Image 9% · 25.5 KiB
CSS 6% · 18.1 KiB
Document 3% · 9.2 KiB
Other 0% · 1.3 KiB

~27.3 KiB of savings available

Remove unused JavaScript: 27.3 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
22 requests over 1861ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 927 ms LCP 2.3 shttps://shotprep.io// https://shotprep.io/ — 200 — 9.2 KiB — 144 ms — h2https://shotprep.io/_next/static/media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff2/_next/static/media/83afe278b6a6bb3... https://shotprep.io/_next/static/media/83afe278b6a6bb3c-s.p.0q-301v4kxxnr.woff2 — 200 — 47.6 KiB — 183 ms — h2https://shotprep.io/branding/ShotPrep%20Logo_Wide_Black.svg/branding/ShotPrep%20Logo_Wide_Blac... https://shotprep.io/branding/ShotPrep%20Logo_Wide_Black.svg — 200 — 2.6 KiB — 14 ms — h2https://shotprep.io/_next/static/chunks/0pp1y0ouaqlwo.css/_next/static/chunks/0pp1y0ouaqlwo.... https://shotprep.io/_next/static/chunks/0pp1y0ouaqlwo.css — 200 — 18.1 KiB — 33 ms — h2https://shotprep.io/_next/static/chunks/0yb2wil16uz6h.js/_next/static/chunks/0yb2wil16uz6h.... https://shotprep.io/_next/static/chunks/0yb2wil16uz6h.js — 200 — 2.3 KiB — 15 ms — h2https://shotprep.io/_next/static/chunks/0qqfj-jiuuv6z.js/_next/static/chunks/0qqfj-jiuuv6z.... https://shotprep.io/_next/static/chunks/0qqfj-jiuuv6z.js — 200 — 9.4 KiB — 18 ms — h2https://shotprep.io/_next/static/chunks/0kt_.0j901zal.js/_next/static/chunks/0kt_.0j901zal.... https://shotprep.io/_next/static/chunks/0kt_.0j901zal.js — 200 — 37.5 KiB — 43 ms — h2https://shotprep.io/_next/static/chunks/0h4bq73pogmtb.js/_next/static/chunks/0h4bq73pogmtb.... https://shotprep.io/_next/static/chunks/0h4bq73pogmtb.js — 200 — 70.8 KiB — 45 ms — h2https://shotprep.io/_next/static/chunks/0sl_nocd_j~un.js/_next/static/chunks/0sl_nocd_j~un.... https://shotprep.io/_next/static/chunks/0sl_nocd_j~un.js — 200 — 9.5 KiB — 26 ms — h2https://shotprep.io/_next/static/chunks/turbopack-0pscir.5j_kt~.js/_next/static/chunks/turbopack-0psc... https://shotprep.io/_next/static/chunks/turbopack-0pscir.5j_kt~.js — 200 — 4.6 KiB — 36 ms — h2https://shotprep.io/_next/static/chunks/0q1zu-r~56xao.js/_next/static/chunks/0q1zu-r~56xao.... https://shotprep.io/_next/static/chunks/0q1zu-r~56xao.js — 200 — 3.7 KiB — 37 ms — h2https://shotprep.io/_next/static/chunks/0c~156nc_i3ig.js/_next/static/chunks/0c~156nc_i3ig.... https://shotprep.io/_next/static/chunks/0c~156nc_i3ig.js — 200 — 13.2 KiB — 35 ms — h2https://shotprep.io/_next/static/chunks/0m83qdxl1b-v7.js/_next/static/chunks/0m83qdxl1b-v7.... https://shotprep.io/_next/static/chunks/0m83qdxl1b-v7.js — 200 — 11.2 KiB — 41 ms — h2https://shotprep.io/_next/static/chunks/04cwj.x41g34d.js/_next/static/chunks/04cwj.x41g34d.... https://shotprep.io/_next/static/chunks/04cwj.x41g34d.js — 200 — 9.2 KiB — 27 ms — h2https://shotprep.io/193cf7d0eca47b9c/script.js/193cf7d0eca47b9c/script.js https://shotprep.io/193cf7d0eca47b9c/script.js — 200 — 4.8 KiB — 45 ms — h2https://shotprep.io/09829273f682fb5d/script.js/09829273f682fb5d/script.js https://shotprep.io/09829273f682fb5d/script.js — 200 — 1.5 KiB — 17 ms — h2https://shotprep.io/favicon.ico?favicon.0y004zo38o4um.ico/favicon.ico?favicon.0y004zo38o4um.... https://shotprep.io/favicon.ico?favicon.0y004zo38o4um.ico — 200 — 2.9 KiB — 11 ms — h2https://shotprep.io/09829273f682fb5d/view/09829273f682fb5d/view https://shotprep.io/09829273f682fb5d/view — 200 — 158 B — 33 ms — h2https://shotprep.io/_next/image?url=%2Fmarketing%2Fhero-shotlist.png&w=750&q=75/_next/image?url=%2Fmarketing%2Fher... https://shotprep.io/_next/image?url=%2Fmarketing%2Fhero-shotlist.png&w=750&q=75 — 200 — 20.0 KiB — 566 ms — h2https://shotprep.io/signup?_rsc=1r34m/signup?_rsc=1r34m https://shotprep.io/signup?_rsc=1r34m — 200 — 382 B — 144 ms — h2https://shotprep.io/?_rsc=p37cr/?_rsc=p37cr https://shotprep.io/?_rsc=p37cr — 200 — 78 B — 190 ms — h2https://shotprep.io/signup?_rsc=p37cr/signup?_rsc=p37cr https://shotprep.io/signup?_rsc=p37cr — 200 — 677 B — 158 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
18% of JavaScript execution is third-party
First-party Third-party 216ms · 0KB · $3/mo
Unattributable
Other
Costly
Execution 216ms
Transfer 0 KB
Monthly Cost $3/mo

These scripts may cost more than they're worth

  • Unattributable adds 216ms and costs ~$3/month

Unattributable takes 216ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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