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https://orcid.org

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
1
PASS
9
INFO
2

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

Mobile Desktop
36
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.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

5.47 s

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

13.98 s

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

1.40 s

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

0.023

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

5.68 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.

14.58 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
9 PASS 1 REVIEW 5 FIX
D
Page Weight Budget
Action
2.1 MB transferred, 69 requests
FIX
2.1 MB transferred, 69 requests
Info::
Page weighs 5.5 MB (2.1 MB transferred)
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
Fonts are 784 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 784 KB
Info::
69 HTTP requests
Info::
Estimated 0.44 g CO2 per page load
2.1 MB / 2.4 MB budget
2.1 MB transferred
69 requests
0.44 g CO2 per page load
JavaScript 1.1 MiB 55%
Fonts 783.6 KiB 37%
Other 61.2 KiB 3%
Other 42.3 KiB 2%
Images 41.8 KiB 2%
CSS 27.1 KiB 1%
HTML 9.6 KiB 0%
Other 2.4 KiB 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

F
JS Execution Cost
Action
5226ms total JS execution
FIX
5226ms total JS execution
Warning::
Unattributable: 1174ms CPU time
Warning::
https://orcid.org/main.9e5d0459e9f9d612-en.js: 1004ms CPU time
Warning::
https://orcid.org/new-relic.runtime.e07cc31d18033a...: 822ms CPU time
Warning::
https://static.zdassets.com/web_widget/classic/lat...: 809ms CPU time
Warning::
https://orcid.org/: 443ms CPU time
Warning::
Third-party scripts: 2846ms (54% of total)

Main Thread Breakdown

Script Evaluation 63% Other 19% Style & Layout 6% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
Unattributable1174ms273ms0ms3rd
https://orcid.org/main.9e5d0459e9f9d612-en.js1004ms966ms12ms1st
https://orcid.org/new-relic.runtime.e07cc31d18033aea-en.js822ms642ms52ms1st
https://static.zdassets.com/web_widget/classic/latest/web-widget-main-22a6ed7.js809ms650ms118ms3rd
https://orcid.org/443ms6ms1ms1st
https://cdn.cookielaw.org/scripttemplates/202310.2.0/otBannerSdk.js357ms221ms56ms3rd
https://static.zdassets.com/web_widget/classic/latest/web-widget-locales/classic/en-us-json-22a6ed7.js213ms198ms3ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WDKLQXL132ms83ms47ms3rd
https://orcid.org/polyfills.b7fa1c519b46e0eb-en.js112ms102ms1ms1st
https://js-agent.newrelic.com/nr-spa-1.310.1.min.js97ms81ms14ms3rd

Showing top 10 of 11 scripts

F
JS Bundles
Action
16 scripts, 543 KB unused
FIX
16 scripts, 543 KB unused
Warning::
https://orcid.org/main.9e5d0459e9f9d612-en.js: 294 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.zdassets.com/web_widget/classic/lat...: 113 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WDK...: 62 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202310.2...: 54 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://js-agent.newrelic.com/nr-spa-1.310.1.min.j...: 21 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 543 KB
543 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://orcid.org/main.9e5d0459e9f9d612-en.js512 KB294 KB (57%)✓1st
https://static.zdassets.com/web_widget/classic/latest/web-widget-main-22a6ed7.js261 KB113 KB (43%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WDKLQXL123 KB62 KB (50%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202310.2.0/otBannerSdk.js103 KB54 KB (52%)✓3rd
https://js-agent.newrelic.com/nr-spa-1.310.1.min.js30 KB21 KB (71%)✓3rd
https://orcid.org/common.152fa3041bfb7341-en.js6 KB—✓1st
https://cdn.cookielaw.org/consent/5a6d60d3-b085-4e48-8afa-d707c7afc419/OtAutoBlock.js6 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js9 KB—✓3rd
https://static.zdassets.com/ekr/snippet.js?key=b8313acd-6439-4894-b431-8c5a2ae9e7cb5 KB—✓3rd
https://orcid.org/920.5e1e29e5a3cd8a88-en.js36 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

D
Page Weight Inventory
Action
69 resources · 2.1 MB · 543 KB savings available
FIX
69 resources · 2.1 MB · 543 KB savings available
Warning::
Page weight 1.1 MB over 1MB target
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~543 KB of savings available
Info::
36 third-party resources (37% of weight)
Info::
2 resources over 200KB
69 resources · 2.1 MiB · 36 third-party 1.1 MiB over 1MB target
JavaScript 56% · 1.2 MiB
Font 37% · 783.6 KiB
Other 2% · 44.7 KiB
Image 2% · 42.7 KiB
CSS 2% · 36.7 KiB
Document 1% · 25.1 KiB

~543.1 KiB of savings available

Remove unused JavaScript: 543.1 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store
Info::
Last-Modified header present
Cache-Control

no-store

DirectiveValueMeaning
no-store—Never cache this response
C
Image Optimization
Action
23 images, 0 KB saveable
REVIEW
23 images, 0 KB saveable
Warning::
https://orcid.org/assets/vectors/social/Github.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/RSS.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/cc-zero.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Vimeo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.cookielaw.org/logos/fe0edf32-9beb-4fad... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Bluesky.sv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Facebook.s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Mastodon.s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Youtube.sv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/orcid.logo.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://orcid.org/assets/vectors/social/Linkedin.s... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
23 images 42 KB
0 oversized -0 KB
23 legacy format
11 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

A
Third-Party Impact
37% third-party, 0 ms blocking
PASS
37% third-party, 0 ms blocking
Info::
Third-party code accounts for 37% of page weight (792.7 KiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
63%
37%
First-party Third-party
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
5 fonts (784 KB)
PASS
5 fonts (784 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

784 KB total

Render-blocking

0

of 5

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 12.0 s 14.0 s FCP 5.5 s LCP 14.0 shttps://orcid.org/NotoSans-Regular.f0405dca3d71d9ea.woff2NotoSans-Regular.f0405d... https://orcid.org/NotoSans-Regular.f0405dca3d71d9ea.woff2 — 163.8 KiB — 27 ms — font-display: swaphttps://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2flUhRq6tzZclQEJ-Vdg-Iui... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2 — 125.4 KiB — 19 ms — font-display: swaphttps://orcid.org/NotoSans-SemiBold.729ba7353dcd89c7.woff2NotoSans-SemiBold.729ba... https://orcid.org/NotoSans-SemiBold.729ba7353dcd89c7.woff2 — 166.8 KiB — 29 ms — font-display: swaphttps://orcid.org/NotoSans-Bold.92eb2651311e3904.woff2NotoSans-Bold.92eb26513... https://orcid.org/NotoSans-Bold.92eb2651311e3904.woff2 — 161.8 KiB — 31 ms — font-display: swaphttps://orcid.org/NotoSans-Medium.5a903e19dd0bba50.woff2NotoSans-Medium.5a903e1... https://orcid.org/NotoSans-Medium.5a903e19dd0bba50.woff2 — 165.8 KiB — 38 ms — font-display: swap
NotoSans-Regular.f0405d... woff2 swap
Size 164 KB
Load time 27 ms
Start 775 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
flUhRq6tzZclQEJ-Vdg-Iui... woff2 swap
Size 125 KB
Load time 19 ms
Start 776 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
NotoSans-SemiBold.729ba... woff2 swap
Size 167 KB
Load time 29 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
NotoSans-Bold.92eb26513... woff2 swap
Size 162 KB
Load time 31 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
NotoSans-Medium.5a903e1... woff2 swap
Size 166 KB
Load time 38 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~392 KB and ~784 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
2
preload
—
dns-prefetch
—
prefetch
—

2 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
69 requests over 2633ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.5 s LCP 14.0 shttps://orcid.org// https://orcid.org/ — 200 — 9.6 KiB — 264 ms — h2https://static.zdassets.com/ekr/snippet.js?key=b8313acd-6439-4894-b431-8c5a2ae9e7cbstatic.zdassets.com/ekr/snippet.js?... https://static.zdassets.com/ekr/snippet.js?key=b8313acd-6439-4894-b431-8c5a2ae9e7cb — 200 — 4.6 KiB — 47 ms — h2https://orcid.org/new-relic.runtime.e07cc31d18033aea-en.js/new-relic.runtime.e07cc31d18033aea... https://orcid.org/new-relic.runtime.e07cc31d18033aea-en.js — 200 — 29.1 KiB — 20 ms — h2https://orcid.org/runtime.a8ee21294e6f32db-en.js/runtime.a8ee21294e6f32db-en.js https://orcid.org/runtime.a8ee21294e6f32db-en.js — 200 — 2.1 KiB — 28 ms — h2https://orcid.org/polyfills.b7fa1c519b46e0eb-en.js/polyfills.b7fa1c519b46e0eb-en.js https://orcid.org/polyfills.b7fa1c519b46e0eb-en.js — 200 — 30.9 KiB — 19 ms — h2https://orcid.org/main.9e5d0459e9f9d612-en.js/main.9e5d0459e9f9d612-en.js https://orcid.org/main.9e5d0459e9f9d612-en.js — 200 — 512.1 KiB — 64 ms — h2https://orcid.org/scripts.5dae095cdfaf7ed2-en.js/scripts.5dae095cdfaf7ed2-en.js https://orcid.org/scripts.5dae095cdfaf7ed2-en.js — 200 — 1.7 KiB — 16 ms — h2https://ekr.zdassets.com/compose/b8313acd-6439-4894-b431-8c5a2ae9e7cbekr.zdassets.com/compose/b8313acd-6... https://ekr.zdassets.com/compose/b8313acd-6439-4894-b431-8c5a2ae9e7cb — 200 — 1.4 KiB — 26 ms — h2https://orcid.org/styles.72d0e6e0a67bbe61.css/styles.72d0e6e0a67bbe61.css https://orcid.org/styles.72d0e6e0a67bbe61.css — 200 — 17.7 KiB — 13 ms — h2https://cdn.cookielaw.org/consent/5a6d60d3-b085-4e48-8afa-d707c7afc419/OtAutoBlock.jscdn.cookielaw.org/consent/5a6d60d3-... https://cdn.cookielaw.org/consent/5a6d60d3-b085-4e48-8afa-d707c7afc419/OtAutoBlock.js — 200 — 5.6 KiB — 35 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 26 ms — h2https://orcid.org/account/nameForm.json/account/nameForm.json https://orcid.org/account/nameForm.json — 302 — 568 B — 251 ms — h2https://orcid.org/inbox/unreadCount.json/inbox/unreadCount.json https://orcid.org/inbox/unreadCount.json — 302 — 423 B — 371 ms — h2https://orcid.org/common.152fa3041bfb7341-en.js/common.152fa3041bfb7341-en.js https://orcid.org/common.152fa3041bfb7341-en.js — 200 — 6.3 KiB — 11 ms — h2https://orcid.org/920.5e1e29e5a3cd8a88-en.js/920.5e1e29e5a3cd8a88-en.js https://orcid.org/920.5e1e29e5a3cd8a88-en.js — 200 — 35.9 KiB — 15 ms — h2https://orcid.org/assets/vectors/orcid.logo.svg/assets/vectors/orcid.logo.svg https://orcid.org/assets/vectors/orcid.logo.svg — 200 — 892 B — 29 ms — h2https://orcid.org/assets/vectors/social/Linkedin.svg/assets/vectors/social/Linkedin.svg https://orcid.org/assets/vectors/social/Linkedin.svg — 200 — 504 B — 43 ms — h2https://orcid.org/assets/vectors/social/Bluesky.svg/assets/vectors/social/Bluesky.svg https://orcid.org/assets/vectors/social/Bluesky.svg — 200 — 550 B — 32 ms — h2https://orcid.org/assets/vectors/social/Facebook.svg/assets/vectors/social/Facebook.svg https://orcid.org/assets/vectors/social/Facebook.svg — 200 — 437 B — 23 ms — h2https://orcid.org/assets/vectors/social/Mastodon.svg/assets/vectors/social/Mastodon.svg https://orcid.org/assets/vectors/social/Mastodon.svg — 200 — 854 B — 26 ms — h2https://orcid.org/assets/vectors/social/Youtube.svg/assets/vectors/social/Youtube.svg https://orcid.org/assets/vectors/social/Youtube.svg — 200 — 487 B — 21 ms — h2https://orcid.org/assets/vectors/social/Vimeo.svg/assets/vectors/social/Vimeo.svg https://orcid.org/assets/vectors/social/Vimeo.svg — 200 — 534 B — 24 ms — h2https://orcid.org/assets/vectors/social/Github.svg/assets/vectors/social/Github.svg https://orcid.org/assets/vectors/social/Github.svg — 200 — 723 B — 28 ms — h2https://orcid.org/assets/vectors/social/RSS.svg/assets/vectors/social/RSS.svg https://orcid.org/assets/vectors/social/RSS.svg — 200 — 638 B — 32 ms — h2https://orcid.org/assets/vectors/profile-icon.svg/assets/vectors/profile-icon.svg https://orcid.org/assets/vectors/profile-icon.svg — 200 — 446 B — 37 ms — h2https://orcid.org/assets/vectors/notification-button.svg/assets/vectors/notification-button... https://orcid.org/assets/vectors/notification-button.svg — 200 — 591 B — 35 ms — h2https://orcid.org/assets/vectors/cc-zero.svg/assets/vectors/cc-zero.svg https://orcid.org/assets/vectors/cc-zero.svg — 200 — 3.8 KiB — 33 ms — h2https://orcid.org/NotoSans-Regular.f0405dca3d71d9ea.woff2/NotoSans-Regular.f0405dca3d71d9ea.... https://orcid.org/NotoSans-Regular.f0405dca3d71d9ea.woff2 — 200 — 163.8 KiB — 27 ms — h2https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2fonts.gstatic.com/s/materialicons/v... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2 — 200 — 125.4 KiB — 19 ms — h3https://static.zdassets.com/web_widget/classic/latest/web-widget-main-22a6ed7.jsstatic.zdassets.com/web_widget/clas... https://static.zdassets.com/web_widget/classic/latest/web-widget-main-22a6ed7.js — 200 — 260.6 KiB — 45 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.5 s LCP 14.0 shttps://orcid.org// https://orcid.org/ — 200 — 9.6 KiB — 264 ms — h2https://static.zdassets.com/ekr/snippet.js?key=b8313acd-6439-4894-b431-8c5a2ae9e7cbstatic.zdassets.com/ekr/snippet.js?... https://static.zdassets.com/ekr/snippet.js?key=b8313acd-6439-4894-b431-8c5a2ae9e7cb — 200 — 4.6 KiB — 47 ms — h2https://orcid.org/new-relic.runtime.e07cc31d18033aea-en.js/new-relic.runtime.e07cc31d18033aea... https://orcid.org/new-relic.runtime.e07cc31d18033aea-en.js — 200 — 29.1 KiB — 20 ms — h2https://orcid.org/runtime.a8ee21294e6f32db-en.js/runtime.a8ee21294e6f32db-en.js https://orcid.org/runtime.a8ee21294e6f32db-en.js — 200 — 2.1 KiB — 28 ms — h2https://orcid.org/polyfills.b7fa1c519b46e0eb-en.js/polyfills.b7fa1c519b46e0eb-en.js https://orcid.org/polyfills.b7fa1c519b46e0eb-en.js — 200 — 30.9 KiB — 19 ms — h2https://orcid.org/main.9e5d0459e9f9d612-en.js/main.9e5d0459e9f9d612-en.js https://orcid.org/main.9e5d0459e9f9d612-en.js — 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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
54% of JavaScript execution is third-party
First-party Third-party 2846ms · 527KB · €31/mo
Unattributable
Other
Costly
Execution 1174ms
Transfer 0 KB
Monthly Cost €13/mo
Zendesk Widget
Customer Support
Costly
Execution 809ms
Transfer 261 KB
Unused 43%
Monthly Cost €9/mo
OneTrust
Consent
Essential
Execution 357ms
Transfer 103 KB
Unused 52%
Monthly Cost €4/mo
Zendesk Widget
Customer Support
Costly
Execution 213ms
Transfer 6 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 132ms
Transfer 123 KB
Unused 50%
Monthly Cost €1/mo
js-agent.newrelic.com
Other
Optional
Execution 97ms
Transfer 30 KB
Unused 71%
Monthly Cost €1/mo
Zendesk Widget
Customer Support
Optional
Execution 65ms
Transfer 5 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1174ms and costs ~€13/month
  • Zendesk Widget adds 809ms and costs ~€9/month
  • Zendesk Widget adds 213ms and costs ~€2/month

54% 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 1174ms 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

Zendesk Widget takes 809ms 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

52% of OneTrust'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

Zendesk Widget takes 213ms 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 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

71% of js-agent.newrelic.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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