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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
3
PASS
8
INFO
2

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

Mobile Desktop
99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.

782 ms

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

799 ms

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

8 ms

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

0.028

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

782 ms

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

1.67 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
15
8 PASS 3 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.1 MiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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
Page Weight Budget
1.1 MB transferred, 37 requests
REVIEW
1.1 MB transferred, 37 requests
Info::
Page weighs 2.6 MB (1.1 MB transferred)
Info::
Fonts are 235 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 235 KB
Info::
37 HTTP requests
Info::
Estimated 0.22 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
37 requests
0.22 g CO2 per page load
JavaScript 466.0 KiB 43%
Images 325.3 KiB 30%
Fonts 234.6 KiB 22%
HTML 41.8 KiB 4%
Other 8.3 KiB 1%
CSS 1.7 KiB 0%
Other 1.4 KiB 0%
Other 163 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

C
JS Bundles
Action
14 scripts, 216 KB unused
REVIEW
14 scripts, 216 KB unused
Warning::
https://us.betway.com/_next/static/chunks/989-8ea7...: 94 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PM4...: 69 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://us.betway.com/_next/static/chunks/32-b5e15...: 52 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 216 KB
216 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.js139 KB94 KB (68%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PM43D7V118 KB69 KB (59%)✓3rd
https://us.betway.com/_next/static/chunks/32-b5e159d5608796be.js68 KB52 KB (77%)✓3rd
https://us.betway.com/_next/static/chunks/4bd1b696-2f5509e4233cfea3.js53 KB—✓3rd
https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.js46 KB—✓3rd
https://us.betway.com/_next/static/chunks/main-app-df55f4bdaf350cb2.js0 KB—✓3rd
https://media.src-play.com/plugins/analytics/vtrk-min.js14 KB—✗3rd
https://us.betway.com/_next/static/chunks/33-3592978e61528295.js5 KB—✓3rd
https://us.betway.com/_next/static/chunks/webpack-c48cf33b0cc87c26.js2 KB—✓3rd
https://us.betway.com/_next/static/chunks/app/layout-6ed5185dc83c7bda.js3 KB—✓3rd

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
Page Weight Inventory
37 resources · 1.1 MB · 216 KB savings available
REVIEW
37 resources · 1.1 MB · 216 KB savings available
Warning::
Page weight 55 KB over 1MB target
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~216 KB of savings available
Warning::
36 third-party resources (100% of weight)
37 resources · 1.1 MiB · 36 third-party 55.3 KiB over 1MB target
JavaScript 43% · 466.0 KiB
Image 31% · 333.0 KiB
Font 22% · 234.6 KiB
Document 4% · 42.1 KiB
Other 0% · 1.9 KiB
CSS 0% · 1.7 KiB

~215.9 KiB of savings available

Remove unused JavaScript: 215.9 KiB
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
5 images, 0 KB saveable
PASS
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 325 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
295ms total JS execution
PASS
295ms total JS execution
Info::
https://us.betway.com/_next/static/chunks/684-43b1...: 92ms CPU time
Info::
https://us.betway.com/_next/static/chunks/989-8ea7...: 70ms CPU time
Info::
Unattributable: 70ms CPU time
Info::
https://us.betway.com/?referral_source=Betway_com: 62ms CPU time
Warning::
Third-party scripts: 295ms (100% of total)

Main Thread Breakdown

Script Evaluation 55% Other 21% Script Parsing & Compilation 15% Style & Layout 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.js92ms83ms6ms3rd
https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.js70ms55ms15ms3rd
Unattributable70ms2ms0ms3rd
https://us.betway.com/?referral_source=Betway_com62ms2ms9ms3rd
A+
Font Loading
4 fonts (235 KB)
PASS
4 fonts (235 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

235 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 782 ms LCP 799 mshttps://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttf232001bb1bdf0b81-s.ttf https://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttf — 57.0 KiB — 72 ms — font-display: swaphttps://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttf6b847572fea78a9d-s.ttf https://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttf — 61.3 KiB — 81 ms — font-display: swaphttps://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttf95790c0a23bffe82-s.ttf https://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttf — 61.3 KiB — 86 ms — font-display: swaphttps://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttf6ed7c82a3b90d4d5-s.ttf https://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttf — 55.1 KiB — 85 ms — font-display: swap
232001bb1bdf0b81-s.ttf ttf swap
Size 57 KB
Load time 72 ms
Start 308 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
6b847572fea78a9d-s.ttf ttf swap
Size 61 KB
Load time 81 ms
Start 308 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
95790c0a23bffe82-s.ttf ttf swap
Size 61 KB
Load time 86 ms
Start 309 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
6ed7c82a3b90d4d5-s.ttf ttf swap
Size 55 KB
Load time 85 ms
Start 309 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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)

Fixing the unchecked items could save ~70 KB and ~140 ms

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
37 requests over 938ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 782 ms LCP 799 mshttps://betway.com// https://betway.com/ — 301 — 337 B — 65 ms — h2https://us.betway.com//?referral_source=Betway_comus.betway.com//?referral_source=Bet... https://us.betway.com//?referral_source=Betway_com — 308 — 276 B — 98 ms — h2https://us.betway.com/?referral_source=Betway_comus.betway.com/?referral_source=Betw... https://us.betway.com/?referral_source=Betway_com — 200 — 41.4 KiB — 57 ms — h2https://a-us.storyblok.com/f/1018866/200x242/a92829ae9b/spc_scroll_badge.png/m/640x0/filters:quality(75)a-us.storyblok.com/f/1018866/200x24... https://a-us.storyblok.com/f/1018866/200x242/a92829ae9b/spc_scroll_badge.png/m/640x0/filters:quality(75) — 200 — 27.3 KiB — 22 ms — h2https://a-us.storyblok.com/f/1018866/1920x890/2231fc55a7/spin-palace-hero-main-desktop-image.png/m/1920x0/filters:quality(75)a-us.storyblok.com/f/1018866/1920x8... https://a-us.storyblok.com/f/1018866/1920x890/2231fc55a7/spin-palace-hero-main-desktop-image.png/m/1920x0/filters:quality(75) — 200 — 142.3 KiB — 31 ms — h2https://us.betway.com/_next/static/css/fbe0d42ae5f42ce1.cssus.betway.com/_next/static/css/fbe0... https://us.betway.com/_next/static/css/fbe0d42ae5f42ce1.css — 200 — 611 B — 40 ms — h2https://us.betway.com/_next/static/css/5ebbe67d543cb44e.cssus.betway.com/_next/static/css/5ebb... https://us.betway.com/_next/static/css/5ebbe67d543cb44e.css — 200 — 419 B — 44 ms — h2https://us.betway.com/_next/static/css/19169baf2040ec17.cssus.betway.com/_next/static/css/1916... https://us.betway.com/_next/static/css/19169baf2040ec17.css — 200 — 694 B — 41 ms — h2https://media.src-play.com/plugins/analytics/vtrk-min.jsmedia.src-play.com/plugins/analytic... https://media.src-play.com/plugins/analytics/vtrk-min.js — 200 — 13.8 KiB — 32 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-PM43D7Vwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-PM43D7V — 200 — 117.7 KiB — 65 ms — h2https://a-us.storyblok.com/f/1018866/768x600/760922540b/rectangle-150297.png/m/1080x0/filters:quality(75)a-us.storyblok.com/f/1018866/768x60... https://a-us.storyblok.com/f/1018866/768x600/760922540b/rectangle-150297.png/m/1080x0/filters:quality(75) — 200 — 91.7 KiB — 28 ms — h2https://a-us.storyblok.com/f/1018866/375x590/06b38cd8e2/rectangle-150297.png/m/828x0/filters:quality(75)a-us.storyblok.com/f/1018866/375x59... https://a-us.storyblok.com/f/1018866/375x590/06b38cd8e2/rectangle-150297.png/m/828x0/filters:quality(75) — 200 — 41.0 KiB — 31 ms — h2https://us.betway.com/_next/static/chunks/webpack-c48cf33b0cc87c26.jsus.betway.com/_next/static/chunks/w... https://us.betway.com/_next/static/chunks/webpack-c48cf33b0cc87c26.js — 200 — 2.1 KiB — 49 ms — h2https://us.betway.com/_next/static/chunks/4bd1b696-2f5509e4233cfea3.jsus.betway.com/_next/static/chunks/4... https://us.betway.com/_next/static/chunks/4bd1b696-2f5509e4233cfea3.js — 200 — 52.8 KiB — 101 ms — h2https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.jsus.betway.com/_next/static/chunks/6... https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.js — 200 — 46.3 KiB — 94 ms — h2https://us.betway.com/_next/static/chunks/main-app-df55f4bdaf350cb2.jsus.betway.com/_next/static/chunks/m... https://us.betway.com/_next/static/chunks/main-app-df55f4bdaf350cb2.js — 200 — 431 B — 79 ms — h2https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.jsus.betway.com/_next/static/chunks/9... https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.js — 200 — 138.6 KiB — 111 ms — h2https://us.betway.com/_next/static/chunks/33-3592978e61528295.jsus.betway.com/_next/static/chunks/3... https://us.betway.com/_next/static/chunks/33-3592978e61528295.js — 200 — 5.3 KiB — 83 ms — h2https://us.betway.com/_next/static/chunks/32-b5e159d5608796be.jsus.betway.com/_next/static/chunks/3... https://us.betway.com/_next/static/chunks/32-b5e159d5608796be.js — 200 — 67.6 KiB — 66 ms — h2https://us.betway.com/_next/static/chunks/app/layout-6ed5185dc83c7bda.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/layout-6ed5185dc83c7bda.js — 200 — 3.0 KiB — 82 ms — h2https://us.betway.com/_next/static/chunks/app/not-found-40e79cf194bac03d.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/not-found-40e79cf194bac03d.js — 200 — 1.1 KiB — 78 ms — h2https://us.betway.com/_next/static/chunks/app/page-8bc48637db426add.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/page-8bc48637db426add.js — 200 — 1.0 KiB — 85 ms — h2https://a-us.storyblok.com/f/1018866/625x154/f81f16073e/spc-logo-horiz.png/m/640x0/filters:quality(75)a-us.storyblok.com/f/1018866/625x15... https://a-us.storyblok.com/f/1018866/625x154/f81f16073e/spc-logo-horiz.png/m/640x0/filters:quality(75) — 200 — 23.1 KiB — 7 ms — h2https://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttfus.betway.com/_next/static/media/23... https://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttf — 200 — 57.0 KiB — 72 ms — h2https://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttfus.betway.com/_next/static/media/6b... https://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttf — 200 — 61.3 KiB — 81 ms — h2https://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttfus.betway.com/_next/static/media/95... https://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttf — 200 — 61.3 KiB — 86 ms — h2https://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttfus.betway.com/_next/static/media/6e... https://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttf — 200 — 55.1 KiB — 85 ms — h2https://us.betway.com/ensighten-betway.htmlus.betway.com/ensighten-betway.html https://us.betway.com/ensighten-betway.html — 200 — 383 B — 97 ms — h2https://nexus.ensighten.com/betway/betway-us/Bootstrap.jsnexus.ensighten.com/betway/betway-u... https://nexus.ensighten.com/betway/betway-us/Bootstrap.js — 200 — 406 B — 99 ms — h3https://featureassets.org/v1/initialize?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448828&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&se=1featureassets.org/v1/initialize?k=c... https://featureassets.org/v1/initialize?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448828&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&se=1 — 200 — 898 B — 105 ms — h2
0 ms 200 ms 400 ms 600 ms 800 ms FCP 782 ms LCP 799 mshttps://betway.com// https://betway.com/ — 301 — 337 B — 65 ms — h2https://us.betway.com//?referral_source=Betway_comus.betway.com//?referral_source=Bet... https://us.betway.com//?referral_source=Betway_com — 308 — 276 B — 98 ms — h2https://us.betway.com/?referral_source=Betway_comus.betway.com/?referral_source=Betw... https://us.betway.com/?referral_source=Betway_com — 200 — 41.4 KiB — 57 ms — h2https://a-us.storyblok.com/f/1018866/200x242/a92829ae9b/spc_scroll_badge.png/m/640x0/filters:quality(75)a-us.storyblok.com/f/1018866/200x24... https://a-us.storyblok.com/f/1018866/200x242/a92829ae9b/spc_scroll_badge.png/m/640x0/filters:quality(75) — 200 — 27.3 KiB — 22 ms — h2https://a-us.storyblok.com/f/1018866/1920x890/2231fc55a7/spin-palace-hero-main-desktop-image.png/m/1920x0/filters:quality(75)a-us.storyblok.com/f/1018866/1920x8... https://a-us.storyblok.com/f/1018866/1920x890/2231fc55a7/spin-palace-hero-main-desktop-image.png/m/1920x0/filters:quality(75) — 200 — 142.3 KiB — 31 ms — h2https://us.betway.com/_next/static/css/fbe0d42ae5f42ce1.cssus.betway.com/_next/static/css/fbe0... https://us.betway.com/_next/static/css/fbe0d42ae5f42ce1.css — 200 — 611 B — 40 ms — h2https://us.betway.com/_next/static/css/5ebbe67d543cb44e.cssus.betway.com/_next/static/css/5ebb... https://us.betway.com/_next/static/css/5ebbe67d543cb44e.css — 200 — 419 B — 44 ms — h2https://us.betway.com/_next/static/css/19169baf2040ec17.cssus.betway.com/_next/static/css/1916... https://us.betway.com/_next/static/css/19169baf2040ec17.css — 200 — 694 B — 41 ms — h2https://media.src-play.com/plugins/analytics/vtrk-min.jsmedia.src-play.com/plugins/analytic... https://media.src-play.com/plugins/analytics/vtrk-min.js — 200 — 13.8 KiB — 32 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-PM43D7Vwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-PM43D7V — 200 — 117.7 KiB — 65 ms — h2https://a-us.storyblok.com/f/1018866/768x600/760922540b/rectangle-150297.png/m/1080x0/filters:quality(75)a-us.storyblok.com/f/1018866/768x60... https://a-us.storyblok.com/f/1018866/768x600/760922540b/rectangle-150297.png/m/1080x0/filters:quality(75) — 200 — 91.7 KiB — 28 ms — h2https://a-us.storyblok.com/f/1018866/375x590/06b38cd8e2/rectangle-150297.png/m/828x0/filters:quality(75)a-us.storyblok.com/f/1018866/375x59... https://a-us.storyblok.com/f/1018866/375x590/06b38cd8e2/rectangle-150297.png/m/828x0/filters:quality(75) — 200 — 41.0 KiB — 31 ms — h2https://us.betway.com/_next/static/chunks/webpack-c48cf33b0cc87c26.jsus.betway.com/_next/static/chunks/w... https://us.betway.com/_next/static/chunks/webpack-c48cf33b0cc87c26.js — 200 — 2.1 KiB — 49 ms — h2https://us.betway.com/_next/static/chunks/4bd1b696-2f5509e4233cfea3.jsus.betway.com/_next/static/chunks/4... https://us.betway.com/_next/static/chunks/4bd1b696-2f5509e4233cfea3.js — 200 — 52.8 KiB — 101 ms — h2https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.jsus.betway.com/_next/static/chunks/6... https://us.betway.com/_next/static/chunks/684-43b17c63b11cc5b3.js — 200 — 46.3 KiB — 94 ms — h2https://us.betway.com/_next/static/chunks/main-app-df55f4bdaf350cb2.jsus.betway.com/_next/static/chunks/m... https://us.betway.com/_next/static/chunks/main-app-df55f4bdaf350cb2.js — 200 — 431 B — 79 ms — h2https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.jsus.betway.com/_next/static/chunks/9... https://us.betway.com/_next/static/chunks/989-8ea7443ad518af03.js — 200 — 138.6 KiB — 111 ms — h2https://us.betway.com/_next/static/chunks/33-3592978e61528295.jsus.betway.com/_next/static/chunks/3... https://us.betway.com/_next/static/chunks/33-3592978e61528295.js — 200 — 5.3 KiB — 83 ms — h2https://us.betway.com/_next/static/chunks/32-b5e159d5608796be.jsus.betway.com/_next/static/chunks/3... https://us.betway.com/_next/static/chunks/32-b5e159d5608796be.js — 200 — 67.6 KiB — 66 ms — h2https://us.betway.com/_next/static/chunks/app/layout-6ed5185dc83c7bda.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/layout-6ed5185dc83c7bda.js — 200 — 3.0 KiB — 82 ms — h2https://us.betway.com/_next/static/chunks/app/not-found-40e79cf194bac03d.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/not-found-40e79cf194bac03d.js — 200 — 1.1 KiB — 78 ms — h2https://us.betway.com/_next/static/chunks/app/page-8bc48637db426add.jsus.betway.com/_next/static/chunks/a... https://us.betway.com/_next/static/chunks/app/page-8bc48637db426add.js — 200 — 1.0 KiB — 85 ms — h2https://a-us.storyblok.com/f/1018866/625x154/f81f16073e/spc-logo-horiz.png/m/640x0/filters:quality(75)a-us.storyblok.com/f/1018866/625x15... https://a-us.storyblok.com/f/1018866/625x154/f81f16073e/spc-logo-horiz.png/m/640x0/filters:quality(75) — 200 — 23.1 KiB — 7 ms — h2https://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttfus.betway.com/_next/static/media/23... https://us.betway.com/_next/static/media/232001bb1bdf0b81-s.ttf — 200 — 57.0 KiB — 72 ms — h2https://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttfus.betway.com/_next/static/media/6b... https://us.betway.com/_next/static/media/6b847572fea78a9d-s.ttf — 200 — 61.3 KiB — 81 ms — h2https://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttfus.betway.com/_next/static/media/95... https://us.betway.com/_next/static/media/95790c0a23bffe82-s.ttf — 200 — 61.3 KiB — 86 ms — h2https://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttfus.betway.com/_next/static/media/6e... https://us.betway.com/_next/static/media/6ed7c82a3b90d4d5-s.ttf — 200 — 55.1 KiB — 85 ms — h2https://us.betway.com/ensighten-betway.htmlus.betway.com/ensighten-betway.html https://us.betway.com/ensighten-betway.html — 200 — 383 B — 97 ms — h2https://nexus.ensighten.com/betway/betway-us/Bootstrap.jsnexus.ensighten.com/betway/betway-u... https://nexus.ensighten.com/betway/betway-us/Bootstrap.js — 200 — 406 B — 99 ms — h3https://featureassets.org/v1/initialize?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448828&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&se=1featureassets.org/v1/initialize?k=c... https://featureassets.org/v1/initialize?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448828&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&se=1 — 200 — 898 B — 105 ms — h2https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448830&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=1&gz=1prodregistryv2.org/v1/rgstr?k=clien... https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448830&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=1&gz=1 — 202 — 119 B — 55 ms — h2https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448831&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=1&gz=1prodregistryv2.org/v1/rgstr?k=clien... https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client&sv=3.18.0&t=1776900448831&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=1&gz=1 — 202 — 323 B — 53 ms — h2https://gateway.betway.com/VisitTracking/V1/Websitesgateway.betway.com/VisitTracking/V1... https://gateway.betway.com/VisitTracking/V1/Websites — 204 — 0 B — 125 ms — h2https://us.betway.com/favicon.icous.betway.com/favicon.ico https://us.betway.com/favicon.ico — 200 — 7.7 KiB — 54 ms — h2https://websdk.appsflyer.com/?st=banners&websdk.appsflyer.com/?st=banners& https://websdk.appsflyer.com/?st=banners& — 200 — 15.8 KiB — 15 ms — h3https://gateway.betway.com/VisitTracking/V1/Websitesgateway.betway.com/VisitTracking/V1... https://gateway.betway.com/VisitTracking/V1/Websites — 200 — 163 B — 184 ms — h2https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client-react&sv=3.18.0&t=1776900449019&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=2&gz=1prodregistryv2.org/v1/rgstr?k=clien... https://prodregistryv2.org/v1/rgstr?k=client-oRUei8pcrXtqEguFnim47U6fHCtWv05chWxLOWEP1bK&st=javascript-client-react&sv=3.18.0&t=1776900449019&sid=bcee689a-2cb0-4c92-ad56-3b9ebc99a41b&ec=2&gz=1 — 202 — 119 B — 22 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 295ms · 226KB · $4/mo
us.betway.com
Other
Optional
Execution 92ms
Transfer 46 KB
Monthly Cost $1/mo
us.betway.com
Other
Optional
Execution 70ms
Transfer 139 KB
Unused 68%
Monthly Cost $1/mo
Unattributable
Other
Optional
Execution 70ms
Transfer 0 KB
Monthly Cost $1/mo
us.betway.com
Other
Optional
Execution 62ms
Transfer 41 KB
Monthly Cost $1/mo

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

68% of us.betway.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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