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https://playcasinoonline.ca

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
2
REVIEW
5
PASS
8
INFO
2

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

Mobile Desktop
84
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
75
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

1.62 s

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

3.35 s

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

294 ms

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.

3.32 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.

6.82 s

Page Load Progression

402 ms
804 ms
1.2 s
1.6 s
2.0 s
2.4 s
2.8 s
3.2 s
Checks
17
8 PASS 5 REVIEW 2 FIX
D
JS Bundles
Action
12 scripts, 361 KB unused
FIX
12 scripts, 361 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-3WK1...: 110 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-3WK1...: 67 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-VLQ3...: 64 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=UA-161...: 64 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://playcasinoonline.ca/static/js/all.js: 56 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 361 KB
361 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62R&cx=c&gtm=4e64k0157 KB110 KB (70%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62R157 KB67 KB (43%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-VLQ3ZBXQMB&cx=c&gtm=4e64k0146 KB64 KB (44%)✓3rd
https://www.googletagmanager.com/gtag/js?id=UA-161115616-6125 KB64 KB (51%)✓3rd
https://playcasinoonline.ca/static/js/all.js93 KB56 KB (61%)✓1st
https://playcasinoonline.ca/static/js/custom.js4 KB—✓1st
https://playcasinoonline.ca/wp-content/plugins/universal-banner-popup/resources/js/ajax.js?ver=1.01 KB—✓1st
https://playcasinoonline.ca/wp-content/plugins/webp-express/js/lazysizes.min.js4 KB—✓1st
https://playcasinoonline.ca/wp-content/plugins/wp-tt-second-offer-links/script.js?ver=1.2.41 KB—✓1st
https://playcasinoonline.ca/static/js/custom.js?v=24 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

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

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
1.2 MB transferred, 46 requests
REVIEW
1.2 MB transferred, 46 requests
Info::
Page weighs 2.6 MB (1.2 MB transferred)
Warning::
JavaScript is 714 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 714 KB
Info::
46 HTTP requests
Info::
Estimated 0.25 g CO2 per page load
1.2 MB / 2.4 MB budget
1.2 MB transferred
46 requests
0.25 g CO2 per page load
JavaScript 713.6 KiB 59%
Images 399.3 KiB 33%
Fonts 56.6 KiB 5%
CSS 27.2 KiB 2%
HTML 12.1 KiB 1%
Other 3.2 KiB 0%
Other 1.4 KiB 0%
Other 599 B 0%
0 2.4 MB 4.9 MB
Under budget

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

B
Third-Party Impact
55% third-party, 0 ms blocking
REVIEW
55% third-party, 0 ms blocking
Warning::
Third-party code accounts for 55% of page weight (663.0 KiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
45%
55%
First-party Third-party
C
Image Optimization
Action
23 images, 0 KB saveable
REVIEW
23 images, 0 KB saveable
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
//:0 is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://playcasinoonline.ca/wp-content/webp-expres... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
23 images 399 KB
0 oversized -0 KB
7 legacy format
15 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Execution Cost
Action
1593ms total JS execution
REVIEW
1593ms total JS execution
Warning::
https://www.googletagmanager.com/gtag/js?id=G-3WK1...: 350ms CPU time
Warning::
https://playcasinoonline.ca/: 263ms CPU time
Warning::
Unattributable: 253ms CPU time
Info::
https://playcasinoonline.ca/static/js/all.js: 221ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-VLQ3...: 158ms CPU time
Warning::
Third-party scripts: 953ms (60% of total)

Main Thread Breakdown

Script Evaluation 44% Other 20% Script Parsing & Compilation 16% Style & Layout 9% Rendering 7%
ScriptTotalScriptingParse/CompileParty
https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62R350ms205ms144ms3rd
https://playcasinoonline.ca/263ms5ms2ms1st
Unattributable253ms5ms0ms3rd
https://playcasinoonline.ca/static/js/all.js221ms156ms24ms1st
https://www.googletagmanager.com/gtag/js?id=G-VLQ3ZBXQMB&cx=c&gtm=4e64k0158ms130ms27ms3rd
https://playcasinoonline.ca/wp-content/plugins/webp-express/js/lazysizes.min.js156ms62ms1ms1st
https://www.googletagmanager.com/gtag/js?id=UA-161115616-6142ms111ms29ms3rd
https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62R&cx=c&gtm=4e64k050ms18ms32ms3rd
B
Page Weight Inventory
46 resources · 1.2 MB · 361 KB savings available
REVIEW
46 resources · 1.2 MB · 361 KB savings available
Warning::
Page weight 190 KB over 1MB target
Got: 1.2 MB Expected: ≤ 1 MB
Info::
~361 KB of savings available
Warning::
10 third-party resources (55% of weight)
46 resources · 1.2 MiB · 10 third-party 190.0 KiB over 1MB target
JavaScript 59% · 713.6 KiB
Image 33% · 402.0 KiB
Font 5% · 56.6 KiB
CSS 2% · 27.2 KiB
Document 1% · 12.6 KiB
Other 0% · 2.0 KiB

~360.7 KiB of savings available

Remove unused JavaScript: 360.7 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+
Font Loading
3 fonts (57 KB)
PASS
3 fonts (57 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

57 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 1.6 s LCP 3.3 shttps://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459Wlhyw.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459Wlhyw.woff2 — 18.8 KiB — 75 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_bZF3gnD_g.woff2JTURjIg1_i6t8kCHKm45_bZ... https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_bZF3gnD_g.woff2 — 18.8 KiB — 75 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_dJE3gnD_g.woff2JTURjIg1_i6t8kCHKm45_dJ... https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_dJE3gnD_g.woff2 — 19.1 KiB — 77 ms — font-display: swap
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 19 KB
Load time 75 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
JTURjIg1_i6t8kCHKm45_bZ... woff2 swap
Size 19 KB
Load time 75 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
JTURjIg1_i6t8kCHKm45_dJ... woff2 swap
Size 19 KB
Load time 77 ms
Start 1.0 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
9 hints, 0 missing preconnects
PASS
9 hints, 0 missing preconnects
Info::
Page uses 9 resource hint(s)

Current Resource Hints

preconnect
2
preload
6
dns-prefetch
1
prefetch
—

9 resource hints configured

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
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
46 requests over 3576ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.6 s LCP 3.3 shttps://playcasinoonline.ca// https://playcasinoonline.ca/ — 200 — 12.1 KiB — 1.0 s — h2https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62Rwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-3WK1H8P62R — 200 — 157.0 KiB — 191 ms — h2https://www.googletagmanager.com/gtag/js?id=UA-161115616-6www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=UA-161115616-6 — 200 — 125.2 KiB — 164 ms — h2https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459Wlhyw.woff2fonts.gstatic.com/s/montserrat/v15/... https://fonts.gstatic.com/s/montserrat/v15/JTUSjIg1_i6t8kCHKm459Wlhyw.woff2 — 200 — 18.8 KiB — 75 ms — h3https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_bZF3gnD_g.woff2fonts.gstatic.com/s/montserrat/v15/... https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_bZF3gnD_g.woff2 — 200 — 18.8 KiB — 75 ms — h3https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_dJE3gnD_g.woff2fonts.gstatic.com/s/montserrat/v15/... https://fonts.gstatic.com/s/montserrat/v15/JTURjIg1_i6t8kCHKm45_dJE3gnD_g.woff2 — 200 — 19.1 KiB — 77 ms — h3https://playcasinoonline.ca/static/css/main.min.css/static/css/main.min.css https://playcasinoonline.ca/static/css/main.min.css — 200 — 24.9 KiB — 30 ms — h2https://playcasinoonline.ca/static/js/all.js/static/js/all.js https://playcasinoonline.ca/static/js/all.js — 200 — 92.6 KiB — 75 ms — h2https://playcasinoonline.ca/static/js/custom.js/static/js/custom.js https://playcasinoonline.ca/static/js/custom.js — 200 — 3.8 KiB — 60 ms — h2https://playcasinoonline.ca/wp-content/plugins/universal-banner-popup/resources/css/main.min.css?ver=1.0/wp-content/plugins/universal-banne... https://playcasinoonline.ca/wp-content/plugins/universal-banner-popup/resources/css/main.min.css?ver=1.0 — 200 — 1.6 KiB — 46 ms — h2https://playcasinoonline.ca/wp-content/plugins/sitepress-multilingual-cms/templates/language-switchers/legacy-list-horizontal/style.css?ver=1/wp-content/plugins/sitepress-multi... https://playcasinoonline.ca/wp-content/plugins/sitepress-multilingual-cms/templates/language-switchers/legacy-list-horizontal/style.css?ver=1 — 200 — 665 B — 26 ms — h2https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2019/06/logo.png.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2019/06/logo.png.webp — 200 — 2.2 KiB — 60 ms — h2https://playcasinoonline.ca/wp-content/webp-express/webp-images/static/img/general/banner-slider-bg.jpg.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/static/img/general/banner-slider-bg.jpg.webp — 200 — 43.0 KiB — 77 ms — h2https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/banner-slider-img_Captain-Cooks-2.png.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/banner-slider-img_Captain-Cooks-2.png.webp — 200 — 74.0 KiB — 118 ms — h3https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/logo_150%D1%8550_CapitanCooks-1.png.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/logo_150%D1%8550_CapitanCooks-1.png.webp — 200 — 4.4 KiB — 55 ms — h3https://playcasinoonline.ca/wp-content/webp-express/webp-images/static/img/general/banner-line-1-mob.jpg.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/static/img/general/banner-line-1-mob.jpg.webp — 200 — 16.8 KiB — 94 ms — h3https://playcasinoonline.ca/wp-content/plugins/universal-banner-popup/resources/js/ajax.js?ver=1.0/wp-content/plugins/universal-banne... https://playcasinoonline.ca/wp-content/plugins/universal-banner-popup/resources/js/ajax.js?ver=1.0 — 200 — 685 B — 77 ms — h3https://playcasinoonline.ca/wp-content/plugins/webp-express/js/lazysizes.min.js/wp-content/plugins/webp-express/js... https://playcasinoonline.ca/wp-content/plugins/webp-express/js/lazysizes.min.js — 200 — 3.9 KiB — 85 ms — h3https://playcasinoonline.ca/wp-content/plugins/wp-tt-second-offer-links/script.js?ver=1.2.4/wp-content/plugins/wp-tt-second-of... https://playcasinoonline.ca/wp-content/plugins/wp-tt-second-offer-links/script.js?ver=1.2.4 — 200 — 698 B — 77 ms — h3https://playcasinoonline.ca/static/js/custom.js?v=2/static/js/custom.js?v=2 https://playcasinoonline.ca/static/js/custom.js?v=2 — 200 — 4.0 KiB — 36 ms — h3https://playcasinoonline.ca/static/js/user.js/static/js/user.js https://playcasinoonline.ca/static/js/user.js — 200 — 2.2 KiB — 58 ms — h3https://playcasinoonline.ca/wp-content/plugins/sitepress-multilingual-cms/res/flags/en.png/wp-content/plugins/sitepress-multi... https://playcasinoonline.ca/wp-content/plugins/sitepress-multilingual-cms/res/flags/en.png — 200 — 1.1 KiB — 58 ms — h3https://playcasinoonline.ca/static/img/general/gamburger.png/static/img/general/gamburger.png https://playcasinoonline.ca/static/img/general/gamburger.png — 200 — 1.5 KiB — 51 ms — h3https://playcasinoonline.ca/static/img/general/menu-close.png/static/img/general/menu-close.png https://playcasinoonline.ca/static/img/general/menu-close.png — 200 — 798 B — 50 ms — h3https://playcasinoonline.ca/static/img/general/menu-home.png/static/img/general/menu-home.png https://playcasinoonline.ca/static/img/general/menu-home.png — 200 — 1.8 KiB — 49 ms — h3https://playcasinoonline.ca/static/img/general/star-rate.png/static/img/general/star-rate.png https://playcasinoonline.ca/static/img/general/star-rate.png — 200 — 2.0 KiB — 29 ms — h3https://playcasinoonline.ca/static/img/general/social.png/static/img/general/social.png https://playcasinoonline.ca/static/img/general/social.png — 200 — 3.7 KiB — 49 ms — h3https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/banner-slider-img_Lucky-Nugget-2.png.webp/wp-content/webp-express/webp-image... https://playcasinoonline.ca/wp-content/webp-express/webp-images/uploads/2018/12/banner-slider-img_Lucky-Nugget-2.png.webp — 200 — 98.9 KiB — 67 ms — h3https://playcasinoonline.ca/wp-admin/admin-ajax.php/wp-admin/admin-ajax.php https://playcasinoonline.ca/wp-admin/admin-ajax.php — 200 — 1.4 KiB — 1.6 s — h3https://www.googletagmanager.com/gtag/js?id=G-VLQ3ZBXQMB&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-VLQ3ZBXQMB&cx=c&gtm=4e64k0 — 200 — 145.7 KiB — 58 ms — h2
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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
60% of JavaScript execution is third-party
First-party Third-party 953ms · 585KB · CA$13/mo
Google Tag Manager
Tag Manager
Costly
Execution 350ms
Transfer 157 KB
Unused 43%
Monthly Cost CA$5/mo
Unattributable
Other
Costly
Execution 253ms
Transfer 0 KB
Monthly Cost CA$3/mo
Google Tag Manager
Tag Manager
Optional
Execution 158ms
Transfer 146 KB
Unused 44%
Monthly Cost CA$2/mo
Google Tag Manager
Tag Manager
Optional
Execution 142ms
Transfer 125 KB
Unused 51%
Monthly Cost CA$2/mo
Google Tag Manager
Tag Manager
Optional
Execution 50ms
Transfer 157 KB
Unused 70%
Monthly Cost CA$1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 350ms and costs ~CA$5/month
  • Unattributable adds 253ms and costs ~CA$3/month

60% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

Google Tag Manager takes 350ms 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

Unattributable takes 253ms 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

51% of Google Tag Manager'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

70% of Google Tag Manager'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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