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https://qld.gov.au

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
4
REVIEW
4
PASS
7
INFO
2

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

Mobile Desktop
45
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.
96
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.

4.53 s

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

10.28 s

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

661 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.

5.89 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.

10.30 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
7 PASS 4 REVIEW 4 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 (1.5 MiB of 1.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2076ms total JS execution
FIX
2076ms total JS execution
Warning::
https://www.qld.gov.au/: 491ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PMD...: 441ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2BSW...: 422ms CPU time
Warning::
Unattributable: 400ms CPU time
Info::
https://code.jquery.com/jquery-3.6.1.min.js: 193ms CPU time
Warning::
Third-party scripts: 2076ms (100% of total)

Main Thread Breakdown

Script Evaluation 44% Other 22% Style & Layout 19% Script Parsing & Compilation 7% Parse HTML & CSS 6%
ScriptTotalScriptingParse/CompileParty
https://www.qld.gov.au/491ms12ms4ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PMDS7K441ms370ms55ms3rd
https://www.googletagmanager.com/gtag/js?id=G-2BSW42XWCV&cx=c&gtm=4e64h1422ms358ms59ms3rd
Unattributable400ms8ms0ms3rd
https://code.jquery.com/jquery-3.6.1.min.js193ms112ms14ms3rd
https://www.qld.gov.au/__data/assets/js_file_folder/0022/644503/swe-legacy-support.js?v=0.1.14129ms54ms7ms3rd
D
Page Weight Inventory
Action
59 resources · 1.5 MB · 122 KB savings available
FIX
59 resources · 1.5 MB · 122 KB savings available
Warning::
Page weight 489 KB over 1MB target
Got: 1.5 MB Expected: ≤ 1 MB
Info::
~122 KB of savings available
Warning::
58 third-party resources (100% of weight)
59 resources · 1.5 MiB · 58 third-party 489.3 KiB over 1MB target
Image 51% · 767.8 KiB
JavaScript 29% · 443.6 KiB
CSS 15% · 221.5 KiB
Document 3% · 43.4 KiB
Font 2% · 35.0 KiB
Other 0% · 1.9 KiB

~121.8 KiB of savings available

Remove unused JavaScript: 121.8 KiB
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
1.5 MB transferred, 59 requests
REVIEW
1.5 MB transferred, 59 requests
Info::
Page weighs 3.6 MB (1.5 MB transferred)
Info::
CSS is 222 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 222 KB
Info::
59 HTTP requests
Info::
Estimated 0.31 g CO2 per page load
1.5 MB / 2.4 MB budget
1.5 MB transferred
59 requests
0.31 g CO2 per page load
Images 762.9 KiB 50%
JavaScript 443.6 KiB 29%
CSS 221.5 KiB 15%
HTML 43.3 KiB 3%
Fonts 35.0 KiB 2%
Other 4.9 KiB 0%
Other 884 B 0%
Other 549 B 0%
Other 549 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

B
Image Optimization
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Info::
All images are well-optimized
12 images 763 KB
0 oversized -0 KB
9 legacy format
0 missing dimensions CLS risk
B
JS Bundles
15 scripts, 122 KB unused
REVIEW
15 scripts, 122 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2BSW...: 65 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-PMD...: 57 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 122 KB
122 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-2BSW42XWCV&cx=c&gtm=4e64h1174 KB65 KB (37%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PMDS7K155 KB57 KB (37%)✓3rd
https://www.qld.gov.au/__data/assets/js_file_folder/0035/499166/qgds-frontend-support.js?v=0.4.304 KB—✓3rd
https://www.qld.gov.au/__data/assets/js_file/0027/252693/formio-script.js?v=0.1.01 KB—✓3rd
https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/bootstrap.min.js?h=5f36cdb24 KB—✓3rd
https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/qld.bootstrap.min.js?h=5f36cdb6 KB—✓3rd
https://code.jquery.com/jquery-3.6.1.min.js31 KB—✓3rd
https://www.qld.gov.au/__data/assets/js_file_folder/0022/644503/swe-legacy-support.js?v=0.1.1416 KB—✓3rd
https://www.qld.gov.au/__data/assets/js_file/0011/113402/jpages.min.js3 KB—✓3rd
https://www.qld.gov.au/__data/assets/js_file/0009/113400/util.js1 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
1 fonts (35 KB)
PASS
1 fonts (35 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

35 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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 4.5 s LCP 10.3 shttps://fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2o-0bIpQlx3QUlC5A4PNB6Ry... https://fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2 — 35.0 KiB — 10 ms — font-display: swap
o-0bIpQlx3QUlC5A4PNB6Ry... woff2 swap
Size 35 KB
Load time 10 ms
Start 722 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+
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+
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
59 requests over 1302ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 4.5 s LCP 10.3 shttps://qld.gov.au// https://qld.gov.au/ — 301 — 85 B — 202 ms — h2https://www.qld.gov.au/www.qld.gov.au/ https://www.qld.gov.au/ — 200 — 43.3 KiB — 152 ms — h2https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italicfonts.googleapis.com/css?family=Lat... https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italic — 200 — 1.1 KiB — 132 ms — h2https://www.qld.gov.au/__data/assets/css_file/0025/644281/fancybox.min.css?v=0.1.0www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0025/644281/fancybox.min.css?v=0.1.0 — 200 — 4.0 KiB — 109 ms — h2https://www.qld.gov.au/_qgdesigns/css/qg-main.css?v=0.4.20www.qld.gov.au/_qgdesigns/css/qg-ma... https://www.qld.gov.au/_qgdesigns/css/qg-main.css?v=0.4.20 — 200 — 3.8 KiB — 234 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0015/110823/qg-components.css?v=0.3.0www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0015/110823/qg-components.css?v=0.3.0 — 200 — 829 B — 73 ms — h2https://code.jquery.com/jquery-3.6.1.min.jscode.jquery.com/jquery-3.6.1.min.js https://code.jquery.com/jquery-3.6.1.min.js — 200 — 30.6 KiB — 31 ms — h2https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.csscdn.jsdelivr.net/npm/flatpickr/dist... https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.css — 200 — 3.8 KiB — 40 ms — h2https://www.qld.gov.au/__data/assets/css_file/0019/113509/custom.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0019/113509/custom.css — 200 — 4.4 KiB — 87 ms — h2https://www.qld.gov.au/__data/assets/css_file/0026/113399/royalslider.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0026/113399/royalslider.css — 200 — 1.7 KiB — 83 ms — h2https://www.qld.gov.au/__data/assets/css_file/0011/113510/rs-default.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0011/113510/rs-default.css — 200 — 2.2 KiB — 92 ms — h2https://www.qld.gov.au/__data/assets/css_file/0026/119177/squiz-119177_custom.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0026/119177/squiz-119177_custom.css — 200 — 1.9 KiB — 96 ms — h2https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/css/qld.bootstrap.css?h=5f36cdbwww.qld.gov.au/__data/assets/git_br... https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/css/qld.bootstrap.css?h=5f36cdb — 200 — 128.7 KiB — 126 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0022/541309/QGDS-shim.css?v=0.5.103www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0022/541309/QGDS-shim.css?v=0.5.103 — 200 — 18.4 KiB — 107 ms — h2https://www.qld.gov.au/design-system/_design/css/webfonts/fontawesome.css?v=0.1.2www.qld.gov.au/design-system/_desig... https://www.qld.gov.au/design-system/_design/css/webfonts/fontawesome.css?v=0.1.2 — 200 — 24.2 KiB — 231 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0027/644490/swe-legacy-support.min.css?v=0.1.45www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0027/644490/swe-legacy-support.min.css?v=0.1.45 — 200 — 6.5 KiB — 84 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0024/637152/homepage-style.css?v=0.0.10www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0024/637152/homepage-style.css?v=0.0.10 — 200 — 1.3 KiB — 115 ms — h2https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-banner/banner.css?v=0.0.12www.qld.gov.au/_qgdesigns/templates... https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-banner/banner.css?v=0.0.12 — 200 — 5.4 KiB — 226 ms — h2https://www.qld.gov.au/__data/assets/image/0038/838568/qgov-mqs.jpgwww.qld.gov.au/__data/assets/image/... https://www.qld.gov.au/__data/assets/image/0038/838568/qgov-mqs.jpg — 200 — 71.4 KiB — 90 ms — h2https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-icon-list/iconlist.css?v=0.0.1www.qld.gov.au/_qgdesigns/templates... https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-icon-list/iconlist.css?v=0.0.1 — 200 — 7.7 KiB — 221 ms — h2https://www.qld.gov.au/__data/assets/css_file/0016/612151/news-listing.css?v=0.0.5www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0016/612151/news-listing.css?v=0.0.5 — 200 — 777 B — 64 ms — h3https://www.qld.gov.au/__data/assets/image/0019/612244/have-your-say.jpgwww.qld.gov.au/__data/assets/image/... https://www.qld.gov.au/__data/assets/image/0019/612244/have-your-say.jpg — 200 — 195.0 KiB — 72 ms — h3https://www.qld.gov.au/_qgdesigns/templates/qgds/link-list-card/link-list-card.css?v=0.0.1www.qld.gov.au/_qgdesigns/templates... https://www.qld.gov.au/_qgdesigns/templates/qgds/link-list-card/link-list-card.css?v=0.0.1 — 200 — 1.1 KiB — 123 ms — h3https://www.qld.gov.au/design-system/_design/nested-partials/footer-feedback-form/footer-feedback-form-shim.css?v=0.1.3www.qld.gov.au/design-system/_desig... https://www.qld.gov.au/design-system/_design/nested-partials/footer-feedback-form/footer-feedback-form-shim.css?v=0.1.3 — 200 — 2.9 KiB — 105 ms — h3https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;600;700;900&display=swapfonts.googleapis.com/css2?family=No... https://fonts.googleapis.com/css2?family=Noto+Sans:wght@400;600;700;900&display=swap — 200 — 988 B — 53 ms — h2https://www.qld.gov.au/__data/assets/js_file/0028/147385/browser-support.js?v=0.2.0www.qld.gov.au/__data/assets/js_fil... https://www.qld.gov.au/__data/assets/js_file/0028/147385/browser-support.js?v=0.2.0 — 200 — 934 B — 72 ms — h3https://static.qgov.net.au/formio-qld/v2/v2.x.x-latest/formio-script.min.jsstatic.qgov.net.au/formio-qld/v2/v2... https://static.qgov.net.au/formio-qld/v2/v2.x.x-latest/formio-script.min.js — 200 — 1.4 KiB — 179 ms — h2https://www.qld.gov.au/__data/assets/js_file/0027/252693/formio-script.js?v=0.1.0www.qld.gov.au/__data/assets/js_fil... https://www.qld.gov.au/__data/assets/js_file/0027/252693/formio-script.js?v=0.1.0 — 200 — 1021 B — 76 ms — h3https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/bootstrap.min.js?h=5f36cdbwww.qld.gov.au/__data/assets/git_br... https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/bootstrap.min.js?h=5f36cdb — 200 — 24.2 KiB — 56 ms — h3https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/qld.bootstrap.min.js?h=5f36cdbwww.qld.gov.au/__data/assets/git_br... https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/js/qld.bootstrap.min.js?h=5f36cdb — 200 — 5.6 KiB — 64 ms — h3
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 4.5 s LCP 10.3 shttps://qld.gov.au// https://qld.gov.au/ — 301 — 85 B — 202 ms — h2https://www.qld.gov.au/www.qld.gov.au/ https://www.qld.gov.au/ — 200 — 43.3 KiB — 152 ms — h2https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italicfonts.googleapis.com/css?family=Lat... https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900,100italic,300italic,400italic,700italic,900italic — 200 — 1.1 KiB — 132 ms — h2https://www.qld.gov.au/__data/assets/css_file/0025/644281/fancybox.min.css?v=0.1.0www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0025/644281/fancybox.min.css?v=0.1.0 — 200 — 4.0 KiB — 109 ms — h2https://www.qld.gov.au/_qgdesigns/css/qg-main.css?v=0.4.20www.qld.gov.au/_qgdesigns/css/qg-ma... https://www.qld.gov.au/_qgdesigns/css/qg-main.css?v=0.4.20 — 200 — 3.8 KiB — 234 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0015/110823/qg-components.css?v=0.3.0www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0015/110823/qg-components.css?v=0.3.0 — 200 — 829 B — 73 ms — h2https://code.jquery.com/jquery-3.6.1.min.jscode.jquery.com/jquery-3.6.1.min.js https://code.jquery.com/jquery-3.6.1.min.js — 200 — 30.6 KiB — 31 ms — h2https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.csscdn.jsdelivr.net/npm/flatpickr/dist... https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.css — 200 — 3.8 KiB — 40 ms — h2https://www.qld.gov.au/__data/assets/css_file/0019/113509/custom.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0019/113509/custom.css — 200 — 4.4 KiB — 87 ms — h2https://www.qld.gov.au/__data/assets/css_file/0026/113399/royalslider.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0026/113399/royalslider.css — 200 — 1.7 KiB — 83 ms — h2https://www.qld.gov.au/__data/assets/css_file/0011/113510/rs-default.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0011/113510/rs-default.css — 200 — 2.2 KiB — 92 ms — h2https://www.qld.gov.au/__data/assets/css_file/0026/119177/squiz-119177_custom.csswww.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file/0026/119177/squiz-119177_custom.css — 200 — 1.9 KiB — 96 ms — h2https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/css/qld.bootstrap.css?h=5f36cdbwww.qld.gov.au/__data/assets/git_br... https://www.qld.gov.au/__data/assets/git_bridge/0030/498603/assets/css/qld.bootstrap.css?h=5f36cdb — 200 — 128.7 KiB — 126 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0022/541309/QGDS-shim.css?v=0.5.103www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0022/541309/QGDS-shim.css?v=0.5.103 — 200 — 18.4 KiB — 107 ms — h2https://www.qld.gov.au/design-system/_design/css/webfonts/fontawesome.css?v=0.1.2www.qld.gov.au/design-system/_desig... https://www.qld.gov.au/design-system/_design/css/webfonts/fontawesome.css?v=0.1.2 — 200 — 24.2 KiB — 231 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0027/644490/swe-legacy-support.min.css?v=0.1.45www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0027/644490/swe-legacy-support.min.css?v=0.1.45 — 200 — 6.5 KiB — 84 ms — h2https://www.qld.gov.au/__data/assets/css_file_folder/0024/637152/homepage-style.css?v=0.0.10www.qld.gov.au/__data/assets/css_fi... https://www.qld.gov.au/__data/assets/css_file_folder/0024/637152/homepage-style.css?v=0.0.10 — 200 — 1.3 KiB — 115 ms — h2https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-banner/banner.css?v=0.0.12www.qld.gov.au/_qgdesigns/templates... https://www.qld.gov.au/_qgdesigns/templates/qgds/qgds-banner/banner.css?v=0.0.12 — 200 — 5.4 KiB — 226 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
100% of JavaScript execution is third-party
First-party Third-party 2076ms · 420KB · A$36/mo
www.qld.gov.au
Other
Costly
Execution 491ms
Transfer 43 KB
Monthly Cost A$8/mo
Google Tag Manager
Tag Manager
Costly
Execution 441ms
Transfer 155 KB
Unused 37%
Monthly Cost A$8/mo
Google Tag Manager
Tag Manager
Costly
Execution 422ms
Transfer 174 KB
Unused 37%
Monthly Cost A$7/mo
Unattributable
Other
Costly
Execution 400ms
Transfer 0 KB
Monthly Cost A$7/mo
code.jquery.com
Other
Optional
Execution 193ms
Transfer 31 KB
Monthly Cost A$3/mo
www.qld.gov.au
Other
Optional
Execution 129ms
Transfer 16 KB
Monthly Cost A$2/mo

These scripts may cost more than they're worth

  • www.qld.gov.au adds 491ms and costs ~A$8/month
  • Google Tag Manager adds 441ms and costs ~A$8/month
  • Google Tag Manager adds 422ms and costs ~A$7/month
  • Unattributable adds 400ms and costs ~A$7/month

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

www.qld.gov.au takes 491ms 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

Google Tag Manager takes 441ms 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

Google Tag Manager takes 422ms 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 400ms 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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