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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
73
GRADE
C
FIX
5
REVIEW
2
PASS
8
INFO
2

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

Mobile Desktop
50
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
81
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.

2.75 s

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

4.85 s

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

1.49 s

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.

4.36 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.

11.89 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
8 PASS 2 REVIEW 5 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 (1.6 MiB of 1.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4100ms total JS execution
FIX
4100ms total JS execution
Warning::
https://c5.rgstatic.net/javascript/bundles/bootstr...: 833ms CPU time
Warning::
Unattributable: 604ms CPU time
Warning::
https://a.researchgate.net/static/array.js: 494ms CPU time
Warning::
https://www.researchgate.net/: 376ms CPU time
Warning::
https://ads.pubmatic.com/AdServer/js/pwt/161519/67...: 371ms CPU time
Warning::
Third-party scripts: 4100ms (100% of total)

Main Thread Breakdown

Script Evaluation 64% Script Parsing & Compilation 14% Other 13% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.js833ms782ms18ms3rd
Unattributable604ms42ms0ms3rd
https://a.researchgate.net/static/array.js494ms466ms23ms3rd
https://www.researchgate.net/376ms70ms11ms3rd
https://ads.pubmatic.com/AdServer/js/pwt/161519/6737/pwt.js371ms286ms68ms3rd
https://www.researchgate.net/cdn-cgi/challenge-platform/scripts/jsd/main.js350ms328ms4ms3rd
https://www.googletagmanager.com/gtag/js?id=G-4P31SJ70EJ328ms259ms66ms3rd
https://sdk.privacy-center.org/sdk/ccd75f3fd1e3bfdd8b4938d8a0c206149f135f03/modern/sdk.ccd75f3fd1e3bfdd8b4938d8a0c206149f135f03.js287ms222ms50ms3rd
https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.js144ms9ms129ms3rd
https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.js114ms5ms108ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
27 scripts, 599 KB unused
FIX
27 scripts, 599 KB unused
Warning::
https://c5.rgstatic.net/javascript/bundles/common_...: 193 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ads.pubmatic.com/AdServer/js/pwt/161519/67...: 119 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-4P31...: 66 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sdk.privacy-center.org/sdk/ccd75f3fd1e3bfd...: 64 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://c5.rgstatic.net/javascript/bundles/common_...: 57 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 599 KB
599 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.js278 KB193 KB (70%)✓3rd
https://ads.pubmatic.com/AdServer/js/pwt/161519/6737/pwt.js170 KB119 KB (70%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-4P31SJ70EJ160 KB66 KB (41%)✓3rd
https://sdk.privacy-center.org/sdk/ccd75f3fd1e3bfdd8b4938d8a0c206149f135f03/modern/sdk.ccd75f3fd1e3bfdd8b4938d8a0c206149f135f03.js102 KB64 KB (63%)✓3rd
https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.js122 KB57 KB (47%)✓3rd
https://c5.rgstatic.net/javascript/bundles/common.76890d.js102 KB47 KB (46%)✓3rd
https://a.researchgate.net/static/array.js60 KB30 KB (50%)✓3rd
https://a.researchgate.net/static/surveys.js?v=1.369.032 KB24 KB (78%)✓3rd
https://c5.rgstatic.net/javascript/bundles/entrypoints/application/Index.3accd3.js4 KB—✓3rd
https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.js42 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

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
Page Weight Inventory
Action
64 resources · 1.6 MB · 599 KB savings available
FIX
64 resources · 1.6 MB · 599 KB savings available
Warning::
Page weight 591 KB over 1MB target
Got: 1.6 MB Expected: ≤ 1 MB
Info::
~599 KB of savings available
Warning::
63 third-party resources (100% of weight)
Info::
1 resources over 200KB
64 resources · 1.6 MiB · 63 third-party 590.6 KiB over 1MB target
JavaScript 78% · 1.2 MiB
Image 12% · 196.3 KiB
CSS 4% · 65.2 KiB
Font 4% · 64.5 KiB
Other 1% · 12.7 KiB
Document 1% · 11.5 KiB

~599.0 KiB of savings available

Remove unused JavaScript: 599.0 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.

C
Page Weight Budget
Action
1.6 MB transferred, 64 requests
REVIEW
1.6 MB transferred, 64 requests
Info::
Page weighs 5.3 MB (1.6 MB transferred)
Warning::
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Info::
64 HTTP requests
Info::
Estimated 0.33 g CO2 per page load
1.6 MB / 2.4 MB budget
1.6 MB transferred
64 requests
0.33 g CO2 per page load
JavaScript 1.2 MiB 78%
Images 168.1 KiB 10%
CSS 65.2 KiB 4%
Fonts 64.5 KiB 4%
Other 29.6 KiB 2%
HTML 11.1 KiB 1%
Other 9.0 KiB 1%
Other 1.7 KiB 0%
Other 1.0 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

C
Image Optimization
Action
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Warning::
https://www.researchgate.net/images/footer-hiring@... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://c5.rgstatic.net/m/419438641133902/images/i... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.researchgate.net/images/footer-adverti... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
6 images 168 KB
0 oversized -0 KB
5 legacy format
3 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

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 (64 KB)
PASS
3 fonts (64 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

64 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 4.0 s 5.0 s FCP 2.8 s LCP 4.9 shttps://c5.rgstatic.net/m/4377210183614584/fonts/roboto-v15-latin-400.woff2roboto-v15-latin-400.woff2 https://c5.rgstatic.net/m/4377210183614584/fonts/roboto-v15-latin-400.woff2 — 14.6 KiB — 62 ms — font-display: swaphttps://c5.rgstatic.net/m/4263650741714552/fonts/roboto-v15-latin-700.woff2roboto-v15-latin-700.woff2 https://c5.rgstatic.net/m/4263650741714552/fonts/roboto-v15-latin-700.woff2 — 14.6 KiB — 91 ms — font-display: swaphttps://www.researchgate.net/webfonts/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://www.researchgate.net/webfonts/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 35.3 KiB — 43 ms — font-display: swap
roboto-v15-latin-400.woff2 woff2 swap
Size 15 KB
Load time 62 ms
Start 88 ms
Risk FOUT — text flashes from fallback to web font
roboto-v15-latin-700.woff2 woff2 swap
Size 15 KB
Load time 91 ms
Start 89 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 43 ms
Start 266 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
64 requests over 2402ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 2.8 s LCP 4.9 shttps://researchgate.net// https://researchgate.net/ — 301 — 185 B — 16 ms — h2https://www.researchgate.net/www.researchgate.net/ https://www.researchgate.net/ — 200 — 11.1 KiB — 37 ms — h2https://c5.rgstatic.net/m/4389871838312458/javascript/errorLogging/logger.jsc5.rgstatic.net/m/4389871838312458/... https://c5.rgstatic.net/m/4389871838312458/javascript/errorLogging/logger.js — 200 — 5.0 KiB — 59 ms — h2https://c5.rgstatic.net/javascript/modern/polyfill.66e471.jsc5.rgstatic.net/javascript/modern/p... https://c5.rgstatic.net/javascript/modern/polyfill.66e471.js — 200 — 11.0 KiB — 55 ms — h2https://c5.rgstatic.net/styles/bundles/common.76890d.cssc5.rgstatic.net/styles/bundles/comm... https://c5.rgstatic.net/styles/bundles/common.76890d.css — 200 — 602 B — 42 ms — h2https://c5.rgstatic.net/styles/bundles/bootstrap.d86c58.cssc5.rgstatic.net/styles/bundles/boot... https://c5.rgstatic.net/styles/bundles/bootstrap.d86c58.css — 200 — 792 B — 43 ms — h2https://c5.rgstatic.net/javascript/bundles/runtime.127626.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/runtime.127626.js — 200 — 7.0 KiB — 56 ms — h2https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.js — 200 — 121.7 KiB — 81 ms — h2https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.js — 200 — 278.1 KiB — 102 ms — h2https://c5.rgstatic.net/javascript/bundles/common.76890d.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common.76890d.js — 200 — 102.0 KiB — 85 ms — h2https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.js — 200 — 42.4 KiB — 96 ms — h2https://c5.rgstatic.net/m/477575392831009/styles/rg-base.cssc5.rgstatic.net/m/477575392831009/s... https://c5.rgstatic.net/m/477575392831009/styles/rg-base.css — 200 — 6.1 KiB — 45 ms — h2https://c5.rgstatic.net/m/43485951709538458/styles/rg-nova-legacy.cssc5.rgstatic.net/m/43485951709538458... https://c5.rgstatic.net/m/43485951709538458/styles/rg-nova-legacy.css — 200 — 49.9 KiB — 72 ms — h2https://c5.rgstatic.net/styles/bundles/entrypoints/application/IndexContent.f23cba.cssc5.rgstatic.net/styles/bundles/entr... https://c5.rgstatic.net/styles/bundles/entrypoints/application/IndexContent.f23cba.css — 200 — 3.1 KiB — 42 ms — h2https://c5.rgstatic.net/styles/bundles/entrypoints/application/Index.3accd3.cssc5.rgstatic.net/styles/bundles/entr... https://c5.rgstatic.net/styles/bundles/entrypoints/application/Index.3accd3.css — 200 — 3.1 KiB — 45 ms — h2https://c5.rgstatic.net/m/4377210183614584/fonts/roboto-v15-latin-400.woff2c5.rgstatic.net/m/4377210183614584/... https://c5.rgstatic.net/m/4377210183614584/fonts/roboto-v15-latin-400.woff2 — 200 — 14.6 KiB — 62 ms — h2https://c5.rgstatic.net/m/4263650741714552/fonts/roboto-v15-latin-700.woff2c5.rgstatic.net/m/4263650741714552/... https://c5.rgstatic.net/m/4263650741714552/fonts/roboto-v15-latin-700.woff2 — 200 — 14.6 KiB — 91 ms — h2https://www.researchgate.net/webfonts/css?family=Montserrat:regular,bold&display=swapwww.researchgate.net/webfonts/css?f... https://www.researchgate.net/webfonts/css?family=Montserrat:regular,bold&display=swap — 200 — 970 B — 126 ms — h2https://c5.rgstatic.net/styles/bundles/entrypoints/application/GlobalFooterLoggedOut.aaec31.cssc5.rgstatic.net/styles/bundles/entr... https://c5.rgstatic.net/styles/bundles/entrypoints/application/GlobalFooterLoggedOut.aaec31.css — 200 — 765 B — 45 ms — h2https://www.researchgate.net/images/footer-hiring@2x.jpgwww.researchgate.net/images/footer-... https://www.researchgate.net/images/footer-hiring@2x.jpg — 200 — 43.7 KiB — 58 ms — h2https://c5.rgstatic.net/m/419438641133902/images/icons/svgicons/new-index-logo.svgc5.rgstatic.net/m/419438641133902/i... https://c5.rgstatic.net/m/419438641133902/images/icons/svgicons/new-index-logo.svg — 200 — 2.0 KiB — 29 ms — h2https://www.researchgate.net/images/footer-advertising@2x.jpgwww.researchgate.net/images/footer-... https://www.researchgate.net/images/footer-advertising@2x.jpg — 200 — 46.0 KiB — 34 ms — h3https://www.researchgate.net/manifest.jsonwww.researchgate.net/manifest.json https://www.researchgate.net/manifest.json — 200 — 1.0 KiB — 146 ms — h3https://www.researchgate.net/activeTriggers.jswww.researchgate.net/activeTriggers... https://www.researchgate.net/activeTriggers.js — 200 — 515 B — 27 ms — h3https://www.researchgate.net/header/tag.jswww.researchgate.net/header/tag.js https://www.researchgate.net/header/tag.js — 200 — 5.0 KiB — 193 ms — h3https://www.researchgate.net/m/435227022393349/images/icons/nova/icon-stack-s.svgwww.researchgate.net/m/435227022393... https://www.researchgate.net/m/435227022393349/images/icons/nova/icon-stack-s.svg — 200 — 24.4 KiB — 31 ms — h3https://c5.rgstatic.net/m/4108830164867639/images/index-hero@2x.jpgc5.rgstatic.net/m/4108830164867639/... https://c5.rgstatic.net/m/4108830164867639/images/index-hero@2x.jpg — 200 — 66.6 KiB — 19 ms — h3https://c5.rgstatic.net/m/4224193134820206/images/index-discover.svgc5.rgstatic.net/m/4224193134820206/... https://c5.rgstatic.net/m/4224193134820206/images/index-discover.svg — 200 — 6.4 KiB — 12 ms — h3https://c5.rgstatic.net/m/419123737069917/images/index-stats.svgc5.rgstatic.net/m/419123737069917/i... https://c5.rgstatic.net/m/419123737069917/images/index-stats.svg — 200 — 3.4 KiB — 17 ms — h3https://www.researchgate.net/webfonts/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2www.researchgate.net/webfonts/s/mon... https://www.researchgate.net/webfonts/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 200 — 35.3 KiB — 43 ms — h3
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 2.8 s LCP 4.9 shttps://researchgate.net// https://researchgate.net/ — 301 — 185 B — 16 ms — h2https://www.researchgate.net/www.researchgate.net/ https://www.researchgate.net/ — 200 — 11.1 KiB — 37 ms — h2https://c5.rgstatic.net/m/4389871838312458/javascript/errorLogging/logger.jsc5.rgstatic.net/m/4389871838312458/... https://c5.rgstatic.net/m/4389871838312458/javascript/errorLogging/logger.js — 200 — 5.0 KiB — 59 ms — h2https://c5.rgstatic.net/javascript/modern/polyfill.66e471.jsc5.rgstatic.net/javascript/modern/p... https://c5.rgstatic.net/javascript/modern/polyfill.66e471.js — 200 — 11.0 KiB — 55 ms — h2https://c5.rgstatic.net/styles/bundles/common.76890d.cssc5.rgstatic.net/styles/bundles/comm... https://c5.rgstatic.net/styles/bundles/common.76890d.css — 200 — 602 B — 42 ms — h2https://c5.rgstatic.net/styles/bundles/bootstrap.d86c58.cssc5.rgstatic.net/styles/bundles/boot... https://c5.rgstatic.net/styles/bundles/bootstrap.d86c58.css — 200 — 792 B — 43 ms — h2https://c5.rgstatic.net/javascript/bundles/runtime.127626.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/runtime.127626.js — 200 — 7.0 KiB — 56 ms — h2https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common_rg.2230b3.js — 200 — 121.7 KiB — 81 ms — h2https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common_vendor.6d04b8.js — 200 — 278.1 KiB — 102 ms — h2https://c5.rgstatic.net/javascript/bundles/common.76890d.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/common.76890d.js — 200 — 102.0 KiB — 85 ms — h2https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.jsc5.rgstatic.net/javascript/bundles/... https://c5.rgstatic.net/javascript/bundles/bootstrap.d86c58.js — 200 — 42.4 KiB — 96 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 4100ms · 1019KB · $54/mo
c5.rgstatic.net
Other
Costly
Execution 833ms
Transfer 42 KB
Monthly Cost $11/mo
Unattributable
Other
Costly
Execution 604ms
Transfer 0 KB
Monthly Cost $8/mo
a.researchgate.net
Other
Costly
Execution 494ms
Transfer 60 KB
Unused 50%
Monthly Cost $7/mo
www.researchgate.net
Other
Costly
Execution 376ms
Transfer 11 KB
Monthly Cost $5/mo
ads.pubmatic.com
Other
Costly
Execution 371ms
Transfer 170 KB
Unused 70%
Monthly Cost $5/mo
www.researchgate.net
Other
Costly
Execution 350ms
Transfer 0 KB
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 328ms
Transfer 160 KB
Unused 41%
Monthly Cost $4/mo
sdk.privacy-center.org
Other
Costly
Execution 287ms
Transfer 102 KB
Unused 63%
Monthly Cost $4/mo
c5.rgstatic.net
Other
Optional
Execution 144ms
Transfer 278 KB
Unused 70%
Monthly Cost $2/mo
c5.rgstatic.net
Other
Optional
Execution 114ms
Transfer 122 KB
Unused 47%
Monthly Cost $2/mo
Google Analytics
Analytics
Optional
Execution 81ms
Transfer 21 KB
Monthly Cost $1/mo
c5.rgstatic.net
Other
Optional
Execution 63ms
Transfer 4 KB
Monthly Cost $1/mo
a.researchgate.net
Other
Optional
Execution 54ms
Transfer 47 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • c5.rgstatic.net adds 833ms and costs ~$11/month
  • Unattributable adds 604ms and costs ~$8/month
  • a.researchgate.net adds 494ms and costs ~$7/month
  • www.researchgate.net adds 376ms and costs ~$5/month
  • ads.pubmatic.com adds 371ms and costs ~$5/month
  • www.researchgate.net adds 350ms and costs ~$5/month
  • Google Tag Manager adds 328ms and costs ~$4/month
  • sdk.privacy-center.org adds 287ms and costs ~$4/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

c5.rgstatic.net takes 833ms 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 604ms 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

a.researchgate.net takes 494ms 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

50% of a.researchgate.net'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

www.researchgate.net takes 376ms 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

ads.pubmatic.com takes 371ms 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

70% of ads.pubmatic.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

www.researchgate.net 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

Google Tag Manager 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

sdk.privacy-center.org takes 287ms 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

63% of sdk.privacy-center.org'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 c5.rgstatic.net'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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