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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
2
REVIEW
5
PASS
8
INFO
2

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

Mobile Desktop
51
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

2.39 s

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

7.96 s

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

919 ms

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

0.010

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

2.80 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.

11.39 s

Page Load Progression

582 ms
1.2 s
1.7 s
2.3 s
2.9 s
3.5 s
4.1 s
4.7 s
Checks
17
8 PASS 5 REVIEW 2 FIX
D
JS Execution Cost
Action
3486ms total JS execution
FIX
3486ms total JS execution
Warning::
https://scitechdaily.com/: 633ms CPU time
Warning::
https://scitechdaily.com/wp-content/themes/smart-m...: 482ms CPU time
Warning::
Unattributable: 425ms CPU time
Warning::
https://eu-us-cdn.consentmanager.net/delivery/cust...: 328ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-W2V0...: 316ms CPU time
Warning::
Third-party scripts: 1861ms (53% of total)

Main Thread Breakdown

Script Evaluation 54% Other 18% Style & Layout 15% Script Parsing & Compilation 8%
ScriptTotalScriptingParse/CompileParty
https://scitechdaily.com/633ms85ms11ms1st
https://scitechdaily.com/wp-content/themes/smart-mag/js/lazyload.js?ver=10.3.2482ms97ms1ms1st
Unattributable425ms48ms0ms3rd
https://eu-us-cdn.consentmanager.net/delivery/customdata/bV8xLndfMTM0MzQ5LnJfLmxfZW4uZF80NDUxNy54XzY2LnYucC50XzQ0NTE3Lnh0XzI1NzY.js328ms298ms24ms3rd
https://www.googletagmanager.com/gtag/js?id=G-W2V0N2TS2C316ms254ms58ms3rd
https://scitechdaily.com/cdn-cgi/challenge-platform/scripts/jsd/main.js297ms284ms4ms1st
https://scripts.pubnation.com/tags/cmp/e8484401c62373a45398.min.js257ms250ms4ms3rd
https://scripts.pubnation.com/tags/3.44.10-3895-sanitize/wrapper.min.js?bust=-43510532237ms189ms38ms3rd
https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603119ms78ms18ms3rd
https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/js/apbct-public-bundle_gathering.min.js?ver=6.76_1776240672111ms82ms13ms1st

Showing top 10 of 13 scripts

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.
Info::
Last-Modified header present

No Cache-Control header

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

B
Page Weight Budget
1.1 MB transferred, 70 requests
REVIEW
1.1 MB transferred, 70 requests
Info::
Page weighs 3.1 MB (1.1 MB transferred)
Warning::
JavaScript is 652 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 652 KB
Info::
70 HTTP requests
Info::
Estimated 0.24 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
70 requests
0.24 g CO2 per page load
JavaScript 652.2 KiB 56%
Images 295.3 KiB 25%
Fonts 111.5 KiB 10%
CSS 71.1 KiB 6%
HTML 26.3 KiB 2%
Other 6.7 KiB 1%
Other 6.1 KiB 1%
Other 2.0 KiB 0%
Other 558 B 0%
Other 0 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
50% third-party, 0 ms blocking
REVIEW
50% third-party, 0 ms blocking
Info::
Third-party code accounts for 50% of page weight (580.4 KiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
50%
50%
First-party Third-party
B
Image Optimization
9 images, 0 KB saveable
REVIEW
9 images, 0 KB saveable
Info::
All images are well-optimized
9 images 295 KB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
32 scripts, 177 KB unused
REVIEW
32 scripts, 177 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-W2V0...: 63 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://eu-us-cdn.consentmanager.net/delivery/js/c...: 48 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://scripts.pubnation.com/tags/3.44.10-3895-sa...: 41 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.onesignal.com/sdks/web/v16/OneSignalSD...: 25 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 177 KB
177 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-W2V0N2TS2C155 KB63 KB (41%)✓3rd
https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-22102 KB48 KB (48%)✓3rd
https://scripts.pubnation.com/tags/3.44.10-3895-sanitize/wrapper.min.js?bust=-4351053278 KB41 KB (53%)✓3rd
https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=16060342 KB25 KB (60%)✓3rd
https://scitechdaily.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?11 KB—✓1st
https://securepubads.g.doubleclick.net/tag/js/gpt.js34 KB—✓3rd
https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.mfp-lightbox.js?ver=10.3.28 KB—✓1st
https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.sticky-sidebar.js?ver=10.3.24 KB—✓1st
https://scitechdaily.com/wp-content/themes/smart-mag/js/theme.js?ver=10.3.217 KB—✗1st
https://scitechdaily.com/wp-content/plugins/aweber-web-form-widget/src/js/aweber-wpn-script.js?ver=v7.3.321 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

B
Page Weight Inventory
70 resources · 1.1 MB · 177 KB savings available
REVIEW
70 resources · 1.1 MB · 177 KB savings available
Warning::
Page weight 148 KB over 1MB target
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~177 KB of savings available
Warning::
36 third-party resources (50% of weight)
70 resources · 1.1 MiB · 36 third-party 147.8 KiB over 1MB target
JavaScript 56% · 655.7 KiB
Image 26% · 301.2 KiB
Font 10% · 111.5 KiB
CSS 6% · 71.1 KiB
Document 2% · 26.3 KiB
Other 1% · 5.9 KiB

~177.3 KiB of savings available

Remove unused JavaScript: 177.3 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
4 fonts (112 KB)
PASS
4 fonts (112 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

112 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 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 2.4 s LCP 8.0 shttps://scitechdaily.com/wp-content/themes/smart-mag/css/icons/fonts/ts-icons.woff2?v3.2ts-icons.woff2 https://scitechdaily.com/wp-content/themes/smart-mag/css/icons/fonts/ts-icons.woff2?v3.2 — 12.3 KiB — 31 ms — font-display: swaphttps://scitechdaily.com/fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://scitechdaily.com/fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 37.1 KiB — 24 ms — font-display: swaphttps://scitechdaily.com/fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2o-0bIpQlx3QUlC5A4PNB6Ry... https://scitechdaily.com/fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2 — 35.5 KiB — 25 ms — font-display: swaphttps://scitechdaily.com/fonts.gstatic.com/s/publicsans/v21/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2ijwRs572Xtc6ZYQws9YVwnN... https://scitechdaily.com/fonts.gstatic.com/s/publicsans/v21/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2 — 26.5 KiB — 25 ms — font-display: swap
ts-icons.woff2 woff2 swap
Size 12 KB
Load time 31 ms
Start 54 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 37 KB
Load time 24 ms
Start 203 ms
Risk FOUT — text flashes from fallback to web font
o-0bIpQlx3QUlC5A4PNB6Ry... woff2 swap
Size 36 KB
Load time 25 ms
Start 204 ms
Risk FOUT — text flashes from fallback to web font
ijwRs572Xtc6ZYQws9YVwnN... woff2 swap
Size 27 KB
Load time 25 ms
Start 204 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
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
70 requests over 4280ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 2.4 s LCP 8.0 shttps://scitechdaily.com// https://scitechdaily.com/ — 200 — 24.1 KiB — 51 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/css/icons/fonts/ts-icons.woff2?v3.2/wp-content/themes/smart-mag/css/ic... https://scitechdaily.com/wp-content/themes/smart-mag/css/icons/fonts/ts-icons.woff2?v3.2 — 200 — 12.3 KiB — 31 ms — h3https://scitechdaily.com/wp-includes/css/dist/block-library/style.min.css?ver=6.9.4/wp-includes/css/dist/block-library... https://scitechdaily.com/wp-includes/css/dist/block-library/style.min.css?ver=6.9.4 — 200 — 16.3 KiB — 33 ms — h3https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/css/cleantalk-public.min.css?ver=6.76_1776240672/wp-content/plugins/cleantalk-spam-... https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/css/cleantalk-public.min.css?ver=6.76_1776240672 — 200 — 1.4 KiB — 19 ms — h3https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/css/cleantalk-email-decoder.min.css?ver=6.76_1776240672/wp-content/plugins/cleantalk-spam-... https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/css/cleantalk-email-decoder.min.css?ver=6.76_1776240672 — 200 — 1.0 KiB — 16 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/style.css?ver=10.3.2/wp-content/themes/smart-mag/style.... https://scitechdaily.com/wp-content/themes/smart-mag/style.css?ver=10.3.2 — 200 — 40.2 KiB — 42 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/css/lightbox.css?ver=10.3.2/wp-content/themes/smart-mag/css/li... https://scitechdaily.com/wp-content/themes/smart-mag/css/lightbox.css?ver=10.3.2 — 200 — 2.4 KiB — 26 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/css/icons/icons.css?ver=10.3.2/wp-content/themes/smart-mag/css/ic... https://scitechdaily.com/wp-content/themes/smart-mag/css/icons/icons.css?ver=10.3.2 — 200 — 1.5 KiB — 24 ms — h3https://scitechdaily.com/wp-content/themes/scitech4/style.css?ver=1.0/wp-content/themes/scitech4/style.c... https://scitechdaily.com/wp-content/themes/scitech4/style.css?ver=1.0 — 200 — 761 B — 19 ms — h3https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/js/apbct-public-bundle_gathering.min.js?ver=6.76_1776240672/wp-content/plugins/cleantalk-spam-... https://scitechdaily.com/wp-content/plugins/cleantalk-spam-protect/js/apbct-public-bundle_gathering.min.js?ver=6.76_1776240672 — 200 — 26.8 KiB — 41 ms — h3https://scripts.pubnation.com/tags/scitechdaily.js?ver=6.9.4scripts.pubnation.com/tags/scitechd... https://scripts.pubnation.com/tags/scitechdaily.js?ver=6.9.4 — 200 — 25.6 KiB — 242 ms — h2https://scitechdaily.com/wp-content/themes/scitech4/category-prompt.js?ver=6.9.4/wp-content/themes/scitech4/categor... https://scitechdaily.com/wp-content/themes/scitech4/category-prompt.js?ver=6.9.4 — 200 — 1.1 KiB — 36 ms — h3https://scitechdaily.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1/wp-includes/js/jquery/jquery.min.j... https://scitechdaily.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 31.3 KiB — 39 ms — h3https://scitechdaily.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1/wp-includes/js/jquery/jquery-migra... https://scitechdaily.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1 — 200 — 5.4 KiB — 37 ms — h3https://scitechdaily.com/images/scitechdaily-logo-flat-80.png/images/scitechdaily-logo-flat-80.p... https://scitechdaily.com/images/scitechdaily-logo-flat-80.png — 200 — 4.1 KiB — 22 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/js/lazyload.js?ver=10.3.2/wp-content/themes/smart-mag/js/laz... https://scitechdaily.com/wp-content/themes/smart-mag/js/lazyload.js?ver=10.3.2 — 200 — 4.3 KiB — 34 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.mfp-lightbox.js?ver=10.3.2/wp-content/themes/smart-mag/js/jqu... https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.mfp-lightbox.js?ver=10.3.2 — 200 — 7.9 KiB — 28 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.sticky-sidebar.js?ver=10.3.2/wp-content/themes/smart-mag/js/jqu... https://scitechdaily.com/wp-content/themes/smart-mag/js/jquery.sticky-sidebar.js?ver=10.3.2 — 200 — 4.1 KiB — 13 ms — h3https://scitechdaily.com/wp-content/themes/smart-mag/js/theme.js?ver=10.3.2/wp-content/themes/smart-mag/js/the... https://scitechdaily.com/wp-content/themes/smart-mag/js/theme.js?ver=10.3.2 — 200 — 16.7 KiB — 17 ms — h3https://scitechdaily.com/wp-content/plugins/aweber-web-form-widget/src/js/aweber-wpn-script.js?ver=v7.3.32/wp-content/plugins/aweber-web-form... https://scitechdaily.com/wp-content/plugins/aweber-web-form-widget/src/js/aweber-wpn-script.js?ver=v7.3.32 — 200 — 982 B — 17 ms — h3https://www.googletagmanager.com/gtag/js?id=G-W2V0N2TS2Cwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-W2V0N2TS2C — 200 — 154.8 KiB — 265 ms — h2https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js?ver=1.0.0cdn.onesignal.com/sdks/web/v16/OneS... https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.js?ver=1.0.0 — 200 — 901 B — 38 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 24 ms — h2https://forms.aweber.com/form/58/788492458.jsforms.aweber.com/form/58/788492458.... https://forms.aweber.com/form/58/788492458.js — 200 — 3.5 KiB — 33 ms — h2https://scitechdaily.com/fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2/fonts.gstatic.com/s/roboto/v51/KFO... https://scitechdaily.com/fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 200 — 37.1 KiB — 24 ms — h3https://scitechdaily.com/fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2/fonts.gstatic.com/s/notosans/v42/o... https://scitechdaily.com/fonts.gstatic.com/s/notosans/v42/o-0bIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjc5a7du3mhPy0.woff2 — 200 — 35.5 KiB — 25 ms — h3https://scitechdaily.com/fonts.gstatic.com/s/publicsans/v21/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2/fonts.gstatic.com/s/publicsans/v21... https://scitechdaily.com/fonts.gstatic.com/s/publicsans/v21/ijwRs572Xtc6ZYQws9YVwnNGfJ7QwOk1.woff2 — 200 — 26.5 KiB — 25 ms — h3https://scitechdaily.com/images/Cleaner-Ants-768x512.jpg/images/Cleaner-Ants-768x512.jpg https://scitechdaily.com/images/Cleaner-Ants-768x512.jpg — 200 — 66.1 KiB — 577 ms — h3https://scitechdaily.com/images/Targeted-Mitochondrial-Delivery-768x998.jpg/images/Targeted-Mitochondrial-Deli... https://scitechdaily.com/images/Targeted-Mitochondrial-Delivery-768x998.jpg — 200 — 108.9 KiB — 687 ms — h3https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603cdn.onesignal.com/sdks/web/v16/OneS... https://cdn.onesignal.com/sdks/web/v16/OneSignalSDK.page.es6.js?v=160603 — 200 — 42.1 KiB — 30 ms — h3
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ms — h3https://api.onesignal.com/apps/626f7599-8b63-48b5-a388-8d168fa051a8/iconapi.onesignal.com/apps/626f7599-8b6... https://api.onesignal.com/apps/626f7599-8b63-48b5-a388-8d168fa051a8/icon — 200 — 804 B — 39 ms — h3https://img.onesignal.com/t/4635f6aa-720b-465a-a4f5-d617b0a610ec.pngimg.onesignal.com/t/4635f6aa-720b-4... https://img.onesignal.com/t/4635f6aa-720b-465a-a4f5-d617b0a610ec.png — 200 — 26.5 KiB — 31 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
53% of JavaScript execution is third-party
First-party Third-party 1861ms · 442KB · $25/mo
Unattributable
Other
Costly
Execution 425ms
Transfer 0 KB
Monthly Cost $6/mo
eu-us-cdn.consentmanager.net
Other
Costly
Execution 328ms
Transfer 30 KB
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 316ms
Transfer 155 KB
Unused 41%
Monthly Cost $4/mo
scripts.pubnation.com
Other
Costly
Execution 257ms
Transfer 9 KB
Monthly Cost $3/mo
scripts.pubnation.com
Other
Costly
Execution 237ms
Transfer 78 KB
Unused 53%
Monthly Cost $3/mo
cdn.onesignal.com
Other
Optional
Execution 119ms
Transfer 42 KB
Unused 60%
Monthly Cost $2/mo
eu-us-cdn.consentmanager.net
Other
Optional
Execution 94ms
Transfer 102 KB
Unused 48%
Monthly Cost $1/mo
scripts.pubnation.com
Other
Optional
Execution 85ms
Transfer 26 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 425ms and costs ~$6/month
  • eu-us-cdn.consentmanager.net adds 328ms and costs ~$4/month
  • Google Tag Manager adds 316ms and costs ~$4/month
  • scripts.pubnation.com adds 257ms and costs ~$3/month
  • scripts.pubnation.com adds 237ms and costs ~$3/month

53% 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

Unattributable takes 425ms 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

eu-us-cdn.consentmanager.net takes 328ms 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 316ms 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

scripts.pubnation.com takes 257ms 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

scripts.pubnation.com takes 237ms 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

53% of scripts.pubnation.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

60% of cdn.onesignal.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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