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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
3
REVIEW
1
PASS
11
INFO
2

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

Mobile Desktop
83
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.

1.23 s

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

1.91 s

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

648 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.

1.23 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.

7.77 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
11 PASS 1 REVIEW 3 FIX
D
Third-Party Impact
Action
72% third-party, 0 ms blocking
FIX
72% third-party, 0 ms blocking
Warning::
Third-party code accounts for 72% of page weight (483.0 KiB of 673.3 KiB)
Info::
Third-party blocking time is low (0 ms)
28%
72%
First-party Third-party
D
JS Execution Cost
Action
2214ms total JS execution
FIX
2214ms total JS execution
Warning::
https://sciencedaily.com/: 698ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-GT6V...: 337ms CPU time
Warning::
https://eu-us-cdn.consentmanager.net/delivery/cust...: 281ms CPU time
Info::
https://scripts.pubnation.com/tags/3.44.10-clientK...: 199ms CPU time
Info::
https://scripts.pubnation.com/tags/cmp/e8484401c62...: 194ms CPU time
Warning::
Third-party scripts: 1370ms (62% of total)

Main Thread Breakdown

Script Evaluation 50% Style & Layout 24% Other 12% Script Parsing & Compilation 9% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://sciencedaily.com/698ms5ms2ms1st
https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8H337ms263ms61ms3rd
https://eu-us-cdn.consentmanager.net/delivery/customdata/bV8xLndfMTM0MzQ5LnJfQ0NQQS5sX2VuLmRfNDQ1MTcueF82Ni52LnAudF80NDUxNy54dF8yNTc2.js281ms258ms17ms3rd
https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=1572582308199ms154ms34ms3rd
https://scripts.pubnation.com/tags/cmp/e8484401c62373a45398.min.js194ms185ms4ms3rd
Unattributable191ms13ms0ms3rd
https://sciencedaily.com/js/jquery-3.6.0.min.js146ms110ms11ms1st
https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-2192ms32ms59ms3rd
https://scripts.pubnation.com/tags/197d605c-8b0a-4d0c-8229-cd0e28a78762.js76ms57ms8ms3rd
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.

C
JS Bundles
Action
20 scripts, 157 KB unused
REVIEW
20 scripts, 157 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-GT6V...: 65 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-clientK...: 43 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 157 KB
157 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8H160 KB65 KB (41%)✓3rd
https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-21101 KB48 KB (48%)✓3rd
https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=157258230880 KB43 KB (55%)✓3rd
https://sciencedaily.com/js/custom-202307301940.js3 KB—✓1st
https://scripts.pubnation.com/tags/cmp/e8484401c62373a45398.min.js9 KB—✓3rd
https://exchange.pubnation.com/usersync.min.js?s2sVersion=production5 KB—✓3rd
https://sciencedaily.com/js/jquery-3.6.0.min.js32 KB—✓1st
https://sciencedaily.com/js/bootstrap-3.4.1.min.js11 KB—✓1st
https://sciencedaily.com/js/jQuery.print.js3 KB—✓1st
https://sciencedaily.com/js/social-share-kit.min.js3 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

A+
Page Weight Budget
673 KB transferred, 39 requests
PASS
673 KB transferred, 39 requests
Info::
Page weighs 2.2 MB (673 KB transferred)
Warning::
JavaScript is 526 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 526 KB
Info::
39 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
673 KB / 2.4 MB budget
673 KB transferred
39 requests
0.14 g CO2 per page load
JavaScript 526.0 KiB 78%
Fonts 64.3 KiB 10%
HTML 35.7 KiB 5%
CSS 28.3 KiB 4%
Images 7.2 KiB 1%
Other 5.7 KiB 1%
Other 4.4 KiB 1%
Other 1.2 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

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
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 7 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
Font Loading
1 fonts (64 KB)
PASS
1 fonts (64 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

64 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 1.9 shttps://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0fontawesome-webfont.woff https://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0 — 64.3 KiB — 18 ms — font-display: swap
fontawesome-webfont.woff woff swap
Size 64 KB
Load time 18 ms
Start 150 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 ~19 KB and ~38 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

A
Page Weight Inventory
39 resources · 673 KB · 157 KB savings available
PASS
39 resources · 673 KB · 157 KB savings available
Info::
Within 1MB page-weight target
Got: 673 KB
Info::
~157 KB of savings available
Warning::
25 third-party resources (72% of weight)
39 resources · 673.3 KiB · 25 third-party Within 1MB page-weight target
JavaScript 79% · 529.5 KiB
Font 10% · 64.3 KiB
Document 5% · 35.7 KiB
CSS 4% · 28.3 KiB
Image 2% · 12.9 KiB
Other 0% · 2.7 KiB

~156.5 KiB of savings available

Remove unused JavaScript: 156.5 KiB
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
39 requests over 1098ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 1.9 shttps://sciencedaily.com// https://sciencedaily.com/ — 200 — 33.5 KiB — 269 ms — h2https://sciencedaily.com/css/bootstrap.min.css/css/bootstrap.min.css https://sciencedaily.com/css/bootstrap.min.css — 200 — 14.0 KiB — 28 ms — h2https://sciencedaily.com/css/font-awesome.min.css/css/font-awesome.min.css https://sciencedaily.com/css/font-awesome.min.css — 200 — 5.2 KiB — 23 ms — h2https://sciencedaily.com/css/yamm.css/css/yamm.css https://sciencedaily.com/css/yamm.css — 200 — 544 B — 21 ms — h2https://sciencedaily.com/css/social-share-kit.css/css/social-share-kit.css https://sciencedaily.com/css/social-share-kit.css — 200 — 3.0 KiB — 24 ms — h2https://sciencedaily.com/css/custom-202404121350.css/css/custom-202404121350.css https://sciencedaily.com/css/custom-202404121350.css — 200 — 5.6 KiB — 26 ms — h2https://sciencedaily.com/images/sd-logo.png/images/sd-logo.png https://sciencedaily.com/images/sd-logo.png — 200 — 7.1 KiB — 18 ms — h2https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8Hwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8H — 200 — 160.5 KiB — 93 ms — h2https://scripts.pubnation.com/tags/197d605c-8b0a-4d0c-8229-cd0e28a78762.jsscripts.pubnation.com/tags/197d605c... https://scripts.pubnation.com/tags/197d605c-8b0a-4d0c-8229-cd0e28a78762.js — 200 — 17.8 KiB — 15 ms — h2https://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0/fonts/fontawesome-webfont.woff?v=4... https://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0 — 200 — 64.3 KiB — 18 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 51 ms — h3https://scripts.pubnation.com/flooring/countryLookupscripts.pubnation.com/flooring/coun... https://scripts.pubnation.com/flooring/countryLookup — 200 — 244 B — 14 ms — h2https://scripts.pubnation.com/launcher/settings.json?off=pubnationscripts.pubnation.com/launcher/sett... https://scripts.pubnation.com/launcher/settings.json?off=pubnation — 200 — 3.5 KiB — 15 ms — h2https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/keywords.pubnation.com/keyword?page... https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/ — 204 — 0 B — 26 ms — h2https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=1572582308scripts.pubnation.com/tags/3.44.10-... https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=1572582308 — 200 — 79.6 KiB — 14 ms — h2https://exchange.pubnation.com/usersync.min.js?s2sVersion=productionexchange.pubnation.com/usersync.min... https://exchange.pubnation.com/usersync.min.js?s2sVersion=production — 200 — 5.3 KiB — 40 ms — h2https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/keywords.pubnation.com/keyword?page... https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/ — 200 — 371 B — 6 ms — h2https://sciencedaily.com/js/jquery-3.6.0.min.js/js/jquery-3.6.0.min.js https://sciencedaily.com/js/jquery-3.6.0.min.js — 200 — 31.8 KiB — 20 ms — h2https://sciencedaily.com/js/bootstrap-3.4.1.min.js/js/bootstrap-3.4.1.min.js https://sciencedaily.com/js/bootstrap-3.4.1.min.js — 200 — 11.4 KiB — 21 ms — h2https://sciencedaily.com/js/jQuery.print.js/js/jQuery.print.js https://sciencedaily.com/js/jQuery.print.js — 200 — 2.8 KiB — 14 ms — h2https://sciencedaily.com/js/social-share-kit.min.js/js/social-share-kit.min.js https://sciencedaily.com/js/social-share-kit.min.js — 200 — 2.8 KiB — 18 ms — h2https://sciencedaily.com/js/custom-202307301940.js/js/custom-202307301940.js https://sciencedaily.com/js/custom-202307301940.js — 200 — 2.7 KiB — 18 ms — h2https://analytics.google.com/g/collect?v=2&tid=G-GT6V1PPT8H&gtm=45je64k0h2v882001302za200zd882001302&_p=1776797686770&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&_eu=AAAAAGA&are=1&cid=833866558.1776797687&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938466~115938468~117266400&sid=1776797687&sct=1&seg=0&dl=https%3A%2F%2Fsciencedaily.com%2F&dt=ScienceDaily%3A%20Your%20source%20for%20the%20latest%20research%20news&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=375analytics.google.com/g/collect?v=2&... https://analytics.google.com/g/collect?v=2&tid=G-GT6V1PPT8H&gtm=45je64k0h2v882001302za200zd882001302&_p=1776797686770&_gaz=1&gcd=13l3l3l3l1l1&npa=0&dma=0&_eu=AAAAAGA&are=1&cid=833866558.1776797687&frm=0&pscdl=noapi&rcb=10&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938466~115938468~117266400&sid=1776797687&sct=1&seg=0&dl=https%3A%2F%2Fsciencedaily.com%2F&dt=ScienceDaily%3A%20Your%20source%20for%20the%20latest%20research%20news&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=375 — 204 — 549 B — 43 ms — h2https://stats.g.doubleclick.net/g/collect?v=2&tid=G-GT6V1PPT8H&cid=833866558.1776797687&gtm=45je64k0h2v882001302za200zd882001302&rcb=10&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938466~115938468~117266400stats.g.doubleclick.net/g/collect?v... https://stats.g.doubleclick.net/g/collect?v=2&tid=G-GT6V1PPT8H&cid=833866558.1776797687&gtm=45je64k0h2v882001302za200zd882001302&rcb=10&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938466~115938468~117266400 — 204 — 558 B — 40 ms — h2https://exchange.pubnation.com/ias/check?s2sVersion=productionexchange.pubnation.com/ias/check?s2... https://exchange.pubnation.com/ias/check?s2sVersion=production — 200 — 321 B — 9 ms — h2https://scripts.pubnation.com/tags/3318/fa6cd5e582c41b54b01c.min.jsscripts.pubnation.com/tags/3318/fa6... https://scripts.pubnation.com/tags/3318/fa6cd5e582c41b54b01c.min.js — 200 — 4.1 KiB — 4 ms — h2https://scripts.pubnation.com/tags/cmp/e8484401c62373a45398.min.jsscripts.pubnation.com/tags/cmp/e848... https://scripts.pubnation.com/tags/cmp/e8484401c62373a45398.min.js — 200 — 9.4 KiB — 5 ms — h2https://sciencedaily.com/favicon.ico/favicon.ico https://sciencedaily.com/favicon.ico — 200 — 5.7 KiB — 19 ms — h2https://eu-us.consentmanager.net/delivery/cmp.php?&cdid=aae8faf2c2da9&h=https%3A%2F%2Fsciencedaily.com%2F&&cmpsetcc=US-NJ&__cmpfcc=1&l=en&ls=EN_EN_EN&lp=EN&o=1776797687144eu-us.consentmanager.net/delivery/c... https://eu-us.consentmanager.net/delivery/cmp.php?&cdid=aae8faf2c2da9&h=https%3A%2F%2Fsciencedaily.com%2F&&cmpsetcc=US-NJ&__cmpfcc=1&l=en&ls=EN_EN_EN&lp=EN&o=1776797687144 — 200 — 2.5 KiB — 108 ms — h2https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-21eu-us-cdn.consentmanager.net/delive... https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-21 — 200 — 101.1 KiB — 252 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 1.9 shttps://sciencedaily.com// https://sciencedaily.com/ — 200 — 33.5 KiB — 269 ms — h2https://sciencedaily.com/css/bootstrap.min.css/css/bootstrap.min.css https://sciencedaily.com/css/bootstrap.min.css — 200 — 14.0 KiB — 28 ms — h2https://sciencedaily.com/css/font-awesome.min.css/css/font-awesome.min.css https://sciencedaily.com/css/font-awesome.min.css — 200 — 5.2 KiB — 23 ms — h2https://sciencedaily.com/css/yamm.css/css/yamm.css https://sciencedaily.com/css/yamm.css — 200 — 544 B — 21 ms — h2https://sciencedaily.com/css/social-share-kit.css/css/social-share-kit.css https://sciencedaily.com/css/social-share-kit.css — 200 — 3.0 KiB — 24 ms — h2https://sciencedaily.com/css/custom-202404121350.css/css/custom-202404121350.css https://sciencedaily.com/css/custom-202404121350.css — 200 — 5.6 KiB — 26 ms — h2https://sciencedaily.com/images/sd-logo.png/images/sd-logo.png https://sciencedaily.com/images/sd-logo.png — 200 — 7.1 KiB — 18 ms — h2https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8Hwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-GT6V1PPT8H — 200 — 160.5 KiB — 93 ms — h2https://scripts.pubnation.com/tags/197d605c-8b0a-4d0c-8229-cd0e28a78762.jsscripts.pubnation.com/tags/197d605c... https://scripts.pubnation.com/tags/197d605c-8b0a-4d0c-8229-cd0e28a78762.js — 200 — 17.8 KiB — 15 ms — h2https://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0/fonts/fontawesome-webfont.woff?v=4... https://sciencedaily.com/fonts/fontawesome-webfont.woff?v=4.2.0 — 200 — 64.3 KiB — 18 ms — h2https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 51 ms — h3https://scripts.pubnation.com/flooring/countryLookupscripts.pubnation.com/flooring/coun... https://scripts.pubnation.com/flooring/countryLookup — 200 — 244 B — 14 ms — h2https://scripts.pubnation.com/launcher/settings.json?off=pubnationscripts.pubnation.com/launcher/sett... https://scripts.pubnation.com/launcher/settings.json?off=pubnation — 200 — 3.5 KiB — 15 ms — h2https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/keywords.pubnation.com/keyword?page... https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/ — 204 — 0 B — 26 ms — h2https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=1572582308scripts.pubnation.com/tags/3.44.10-... https://scripts.pubnation.com/tags/3.44.10-clientKVP.1/wrapper.min.js?bust=1572582308 — 200 — 79.6 KiB — 14 ms — h2https://exchange.pubnation.com/usersync.min.js?s2sVersion=productionexchange.pubnation.com/usersync.min... https://exchange.pubnation.com/usersync.min.js?s2sVersion=production — 200 — 5.3 KiB — 40 ms — h2https://keywords.pubnation.com/keyword?pageUrl=https://www.sciencedaily.com/keywords.pubnation.com/keyword?page... 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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
62% of JavaScript execution is third-party
First-party Third-party 1370ms · 397KB · €15/mo
Google Tag Manager
Tag Manager
Costly
Execution 337ms
Transfer 160 KB
Unused 41%
Monthly Cost €4/mo
eu-us-cdn.consentmanager.net
Other
Costly
Execution 281ms
Transfer 29 KB
Monthly Cost €3/mo
scripts.pubnation.com
Other
Optional
Execution 199ms
Transfer 80 KB
Unused 55%
Monthly Cost €2/mo
scripts.pubnation.com
Other
Optional
Execution 194ms
Transfer 9 KB
Monthly Cost €2/mo
Unattributable
Other
Optional
Execution 191ms
Transfer 0 KB
Monthly Cost €2/mo
eu-us-cdn.consentmanager.net
Other
Optional
Execution 92ms
Transfer 101 KB
Unused 48%
Monthly Cost €1/mo
scripts.pubnation.com
Other
Optional
Execution 76ms
Transfer 18 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 337ms and costs ~€4/month
  • eu-us-cdn.consentmanager.net adds 281ms and costs ~€3/month

62% 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 337ms 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 281ms 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

55% 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

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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