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https://jaxslayher.com

Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
2
REVIEW
8
PASS
9
INFO
4

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

Mobile Desktop
75
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
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.
92
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.

1.56 s

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

1.92 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.

0.192

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

1.70 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.

1.92 s

Page Load Progression

597 ms
1.2 s
1.8 s
2.4 s
3.0 s
3.6 s
4.2 s
4.8 s
Checks
23
9 PASS 8 REVIEW 2 FIX
F
Page Weight Budget
Action
4.4 MB transferred, 46 requests
FIX
4.4 MB transferred, 46 requests
Critical::
Page weighs 5.3 MB (4.4 MB transferred)
Warning::
Images are 1.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.4 MB
Warning::
JavaScript is 549 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 549 KB
Info::
46 HTTP requests
Info::
Estimated 0.93 g CO2 per page load
4.4 MB / 2.4 MB budget
4.4 MB transferred
46 requests
0.93 g CO2 per page load
Other 2.4 MiB 54%
Images 1.4 MiB 31%
JavaScript 549.1 KiB 12%
CSS 70.7 KiB 2%
Fonts 45.0 KiB 1%
HTML 26.5 KiB 1%
Other 16.0 KiB 0%
Other 8.0 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
15 images, 0 KB saveable
REVIEW
15 images, 0 KB saveable
Info::
All images are well-optimized
15 images 1.4 MB
0 oversized -0 KB
15 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
15 scripts, 158 KB unused
REVIEW
15 scripts, 158 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2P82...: 67 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://jaxslayher.com/_next/static/chunks/fd9d105...: 54 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://jaxslayher.com/_next/static/chunks/864-976...: 37 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 158 KB
158 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQW160 KB67 KB (42%)✓3rd
https://jaxslayher.com/_next/static/chunks/fd9d1056-8ccaeadeeaf29e91.js160 KB54 KB (34%)✓1st
https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js108 KB37 KB (34%)✓1st
https://jaxslayher.com/_next/static/chunks/964-45f62651df057534.js13 KB—✓1st
https://jaxslayher.com/_next/static/chunks/main-app-1c0615638dc41446.js1 KB—✓1st
https://jaxslayher.com/_next/static/chunks/724-c42d167e53473151.js22 KB—✓1st
https://jaxslayher.com/_next/static/chunks/webpack-d23b2e19b9a17abb.js5 KB—✓1st
https://jaxslayher.com/_next/static/chunks/125-cb274990d20fa811.js2 KB—✓1st
https://jaxslayher.com/_next/static/chunks/app/tour/layout-ef8cf17900c621c1.js24 KB—✓1st
https://jaxslayher.com/_next/static/chunks/app/tour/sfw/page-44adb689ff817f3d.js1 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

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

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

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
C
Page Weight Inventory
Action
46 resources · 4.4 MB · 158 KB savings available
REVIEW
46 resources · 4.4 MB · 158 KB savings available
Warning::
Page weight 4.4 MB exceeds 1 MB target by 3.4 MB
Got: 4.4 MB Expected: ≤ 1 MB
Info::
~158 KB of savings available
Info::
4 third-party resources (6% of weight)
Info::
2 resources over 200KB
46 resources · 4.4 MiB · 4 third-party 3.4 MiB over 1MB target
Media 54% · 2.4 MiB
Image 31% · 1.4 MiB
JavaScript 12% · 549.1 KiB
CSS 2% · 70.7 KiB
Font 1% · 45.0 KiB
Document 1% · 27.5 KiB
Other 0% · 8.0 KiB

~158.4 KiB of savings available

Remove unused JavaScript: 158.4 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
6% third-party, 0 ms blocking
PASS
6% third-party, 0 ms blocking
Info::
Third-party code accounts for 6% of page weight (264.6 KiB of 4.4 MiB)
Info::
Third-party blocking time is low (0 ms)
94%
First-party Third-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+
JS Execution Cost
354ms total JS execution
PASS
354ms total JS execution
Info::
Unattributable: 138ms CPU time
Info::
https://jaxslayher.com/tour/sfw: 81ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-2P82...: 68ms CPU time
Info::
https://jaxslayher.com/_next/static/chunks/864-976...: 66ms CPU time
Info::
Third-party scripts: 68ms (19% of total)

Main Thread Breakdown

Other 41% Script Evaluation 38% Style & Layout 9% Script Parsing & Compilation 6% Rendering 3%
ScriptTotalScriptingParse/CompileParty
Unattributable138ms4ms0ms1st
https://jaxslayher.com/tour/sfw81ms3ms3ms1st
https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQW68ms58ms10ms3rd
https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js66ms61ms3ms1st
A+
Font Loading
1 fonts (45 KB)
PASS
1 fonts (45 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

45 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 1.6 s LCP 1.9 shttps://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2ieVl2ZhZI2eCN5jzbjEETS9... https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2 — 45.0 KiB — 156 ms — font-display: swap
ieVl2ZhZI2eCN5jzbjEETS9... woff2 swap
Size 45 KB
Load time 156 ms
Start 1.3 s
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+
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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
Network Waterfall
46 requests over 2460ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.6 s LCP 1.9 shttps://jaxslayher.com// https://jaxslayher.com/ — 302 — 261 B — 396 ms — http/1.1https://jaxslayher.com/tour/sfw/tour/sfw https://jaxslayher.com/tour/sfw — 200 — 26.5 KiB — 259 ms — http/1.1https://jaxslayher.com/images/sfw/1.jpg/images/sfw/1.jpg https://jaxslayher.com/images/sfw/1.jpg — 200 — 98.3 KiB — 387 ms — http/1.1https://jaxslayher.com/images/sfw/3.jpg/images/sfw/3.jpg https://jaxslayher.com/images/sfw/3.jpg — 200 — 105.0 KiB — 539 ms — http/1.1https://jaxslayher.com/_next/static/css/7146e346efc6ac24.css/_next/static/css/7146e346efc6ac24.... https://jaxslayher.com/_next/static/css/7146e346efc6ac24.css — 200 — 11.5 KiB — 391 ms — http/1.1https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQWwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQW — 200 — 159.9 KiB — 264 ms — h2https://jaxslayher.com/_next/static/chunks/webpack-d23b2e19b9a17abb.js/_next/static/chunks/webpack-d23b2e... https://jaxslayher.com/_next/static/chunks/webpack-d23b2e19b9a17abb.js — 200 — 4.7 KiB — 392 ms — http/1.1https://jaxslayher.com/_next/static/chunks/fd9d1056-8ccaeadeeaf29e91.js/_next/static/chunks/fd9d1056-8ccae... https://jaxslayher.com/_next/static/chunks/fd9d1056-8ccaeadeeaf29e91.js — 200 — 160.3 KiB — 773 ms — http/1.1https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js/_next/static/chunks/864-976a44f4a7... https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js — 200 — 108.1 KiB — 806 ms — http/1.1https://jaxslayher.com/_next/static/chunks/main-app-1c0615638dc41446.js/_next/static/chunks/main-app-1c061... https://jaxslayher.com/_next/static/chunks/main-app-1c0615638dc41446.js — 200 — 814 B — 129 ms — http/1.1https://jaxslayher.com/video_thumbs/sfw-milk.mp4/video_thumbs/sfw-milk.mp4 https://jaxslayher.com/video_thumbs/sfw-milk.mp4 — 206 — 599.3 KiB — 637 ms — http/1.1https://fonts.googleapis.com/css2?family=M+PLUS+1+Code:wght@300;400&family=Roboto+Condensed:wght@300;400;700&display=swapfonts.googleapis.com/css2?family=M+... https://fonts.googleapis.com/css2?family=M+PLUS+1+Code:wght@300;400&family=Roboto+Condensed:wght@300;400;700&display=swap — 200 — 59.2 KiB — 206 ms — h2https://jaxslayher.com/video_thumbs/miss.mp4/video_thumbs/miss.mp4 https://jaxslayher.com/video_thumbs/miss.mp4 — 206 — 1.8 MiB — 1.0 s — http/1.1https://jaxslayher.com/images/sfw/4.jpg/images/sfw/4.jpg https://jaxslayher.com/images/sfw/4.jpg — 200 — 107.6 KiB — 274 ms — http/1.1https://jaxslayher.com/images/sfw/5.jpg/images/sfw/5.jpg https://jaxslayher.com/images/sfw/5.jpg — 200 — 75.8 KiB — 256 ms — http/1.1https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2fonts.gstatic.com/s/robotocondensed... https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2 — 200 — 45.0 KiB — 156 ms — h3https://jaxslayher.com/images/sfw/8.jpg/images/sfw/8.jpg https://jaxslayher.com/images/sfw/8.jpg — 200 — 105.5 KiB — 239 ms — http/1.1https://jaxslayher.com/images/sfw/14.jpg/images/sfw/14.jpg https://jaxslayher.com/images/sfw/14.jpg — 200 — 106.8 KiB — 275 ms — http/1.1https://jaxslayher.com/images/sfw/11.jpg/images/sfw/11.jpg https://jaxslayher.com/images/sfw/11.jpg — 200 — 115.0 KiB — 350 ms — http/1.1https://jaxslayher.com/images/sfw/6.jpg/images/sfw/6.jpg https://jaxslayher.com/images/sfw/6.jpg — 200 — 107.8 KiB — 373 ms — http/1.1https://jaxslayher.com/images/sfw/15.jpg/images/sfw/15.jpg https://jaxslayher.com/images/sfw/15.jpg — 200 — 69.9 KiB — 369 ms — http/1.1https://jaxslayher.com/images/sfw/12.jpg/images/sfw/12.jpg https://jaxslayher.com/images/sfw/12.jpg — 200 — 94.1 KiB — 411 ms — http/1.1https://jaxslayher.com/images/sfw/9.jpg/images/sfw/9.jpg https://jaxslayher.com/images/sfw/9.jpg — 200 — 95.2 KiB — 480 ms — http/1.1https://jaxslayher.com/images/sfw/7.jpg/images/sfw/7.jpg https://jaxslayher.com/images/sfw/7.jpg — 200 — 97.5 KiB — 486 ms — http/1.1https://jaxslayher.com/images/sfw/13.jpg/images/sfw/13.jpg https://jaxslayher.com/images/sfw/13.jpg — 200 — 110.4 KiB — 502 ms — http/1.1https://jaxslayher.com/images/sfw/10.jpg/images/sfw/10.jpg https://jaxslayher.com/images/sfw/10.jpg — 200 — 91.8 KiB — 507 ms — http/1.1https://jaxslayher.com/_next/static/media/rta-logo.336785f3.png/_next/static/media/rta-logo.336785... https://jaxslayher.com/_next/static/media/rta-logo.336785f3.png — 200 — 1.9 KiB — 136 ms — http/1.1https://jaxslayher.com/_next/static/chunks/724-c42d167e53473151.js/_next/static/chunks/724-c42d167e53... https://jaxslayher.com/_next/static/chunks/724-c42d167e53473151.js — 200 — 21.7 KiB — 129 ms — http/1.1https://jaxslayher.com/_next/static/chunks/964-45f62651df057534.js/_next/static/chunks/964-45f62651df... https://jaxslayher.com/_next/static/chunks/964-45f62651df057534.js — 200 — 13.5 KiB — 129 ms — http/1.1https://jaxslayher.com/_next/static/chunks/125-cb274990d20fa811.js/_next/static/chunks/125-cb274990d2... https://jaxslayher.com/_next/static/chunks/125-cb274990d20fa811.js — 200 — 1.6 KiB — 128 ms — http/1.1
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.6 s LCP 1.9 shttps://jaxslayher.com// https://jaxslayher.com/ — 302 — 261 B — 396 ms — http/1.1https://jaxslayher.com/tour/sfw/tour/sfw https://jaxslayher.com/tour/sfw — 200 — 26.5 KiB — 259 ms — http/1.1https://jaxslayher.com/images/sfw/1.jpg/images/sfw/1.jpg https://jaxslayher.com/images/sfw/1.jpg — 200 — 98.3 KiB — 387 ms — http/1.1https://jaxslayher.com/images/sfw/3.jpg/images/sfw/3.jpg https://jaxslayher.com/images/sfw/3.jpg — 200 — 105.0 KiB — 539 ms — http/1.1https://jaxslayher.com/_next/static/css/7146e346efc6ac24.css/_next/static/css/7146e346efc6ac24.... https://jaxslayher.com/_next/static/css/7146e346efc6ac24.css — 200 — 11.5 KiB — 391 ms — http/1.1https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQWwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-2P8267HWQW — 200 — 159.9 KiB — 264 ms — h2https://jaxslayher.com/_next/static/chunks/webpack-d23b2e19b9a17abb.js/_next/static/chunks/webpack-d23b2e... https://jaxslayher.com/_next/static/chunks/webpack-d23b2e19b9a17abb.js — 200 — 4.7 KiB — 392 ms — http/1.1https://jaxslayher.com/_next/static/chunks/fd9d1056-8ccaeadeeaf29e91.js/_next/static/chunks/fd9d1056-8ccae... https://jaxslayher.com/_next/static/chunks/fd9d1056-8ccaeadeeaf29e91.js — 200 — 160.3 KiB — 773 ms — http/1.1https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js/_next/static/chunks/864-976a44f4a7... https://jaxslayher.com/_next/static/chunks/864-976a44f4a7e551e8.js — 200 — 108.1 KiB — 806 ms — http/1.1https://jaxslayher.com/_next/static/chunks/main-app-1c0615638dc41446.js/_next/static/chunks/main-app-1c061... https://jaxslayher.com/_next/static/chunks/main-app-1c0615638dc41446.js — 200 — 814 B — 129 ms — http/1.1https://jaxslayher.com/video_thumbs/sfw-milk.mp4/video_thumbs/sfw-milk.mp4 https://jaxslayher.com/video_thumbs/sfw-milk.mp4 — 206 — 599.3 KiB — 637 ms — http/1.1https://fonts.googleapis.com/css2?family=M+PLUS+1+Code:wght@300;400&family=Roboto+Condensed:wght@300;400;700&display=swapfonts.googleapis.com/css2?family=M+... https://fonts.googleapis.com/css2?family=M+PLUS+1+Code:wght@300;400&family=Roboto+Condensed:wght@300;400;700&display=swap — 200 — 59.2 KiB — 206 ms — h2https://jaxslayher.com/video_thumbs/miss.mp4/video_thumbs/miss.mp4 https://jaxslayher.com/video_thumbs/miss.mp4 — 206 — 1.8 MiB — 1.0 s — http/1.1https://jaxslayher.com/images/sfw/4.jpg/images/sfw/4.jpg https://jaxslayher.com/images/sfw/4.jpg — 200 — 107.6 KiB — 274 ms — http/1.1https://jaxslayher.com/images/sfw/5.jpg/images/sfw/5.jpg https://jaxslayher.com/images/sfw/5.jpg — 200 — 75.8 KiB — 256 ms — http/1.1https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2fonts.gstatic.com/s/robotocondensed... https://fonts.gstatic.com/s/robotocondensed/v31/ieVl2ZhZI2eCN5jzbjEETS9weq8-19K7DQk6YvM.woff2 — 200 — 45.0 KiB — 156 ms — h3https://jaxslayher.com/images/sfw/8.jpg/images/sfw/8.jpg https://jaxslayher.com/images/sfw/8.jpg — 200 — 105.5 KiB — 239 ms — http/1.1https://jaxslayher.com/images/sfw/14.jpg/images/sfw/14.jpg https://jaxslayher.com/images/sfw/14.jpg — 200 — 106.8 KiB — 275 ms — http/1.1https://jaxslayher.com/images/sfw/11.jpg/images/sfw/11.jpg https://jaxslayher.com/images/sfw/11.jpg — 200 — 115.0 KiB — 350 ms — http/1.1https://jaxslayher.com/images/sfw/6.jpg/images/sfw/6.jpg https://jaxslayher.com/images/sfw/6.jpg — 200 — 107.8 KiB — 373 ms — http/1.1https://jaxslayher.com/images/sfw/15.jpg/images/sfw/15.jpg https://jaxslayher.com/images/sfw/15.jpg — 200 — 69.9 KiB — 369 ms — http/1.1https://jaxslayher.com/images/sfw/12.jpg/images/sfw/12.jpg https://jaxslayher.com/images/sfw/12.jpg — 200 — 94.1 KiB — 411 ms — http/1.1https://jaxslayher.com/images/sfw/9.jpg/images/sfw/9.jpg https://jaxslayher.com/images/sfw/9.jpg — 200 — 95.2 KiB — 480 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
19% of JavaScript execution is third-party
First-party Third-party 68ms · 160KB · $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 68ms
Transfer 160 KB
Unused 42%
Monthly Cost $1/mo

How third-party costs are calculated

Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-06-14 — 2026-07-11)

LCP (p75)

2650 ms

72% good

INP (p75)

82 ms

95% good

CLS (p75)

0.010

87% good

FCP (p75)

2654 ms

TTFB (p75)

1466 ms

Image Optimization
15 images, 1378 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

15

Total Size

1378 KB

1 missing lazy loading
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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