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https://sched.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
3
REVIEW
4
PASS
6
INFO
2

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

Mobile Desktop
81
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
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.
92
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.

1.51 s

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

1.88 s

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

4 ms

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

0.121

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

1.71 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.

2.41 s

Page Load Progression

477 ms
954 ms
1.4 s
1.9 s
2.4 s
2.9 s
3.3 s
3.8 s
Checks
15
6 PASS 4 REVIEW 3 FIX
F
Page Weight Budget
Action
4.3 MB transferred, 135 requests
FIX
4.3 MB transferred, 135 requests
Critical::
Page weighs 12.3 MB (4.3 MB transferred)
Warning::
JavaScript is 2.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.1 MB
Warning::
Images are 1.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.6 MB
Info::
CSS is 251 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 251 KB
Info::
Fonts are 212 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 212 KB
Warning::
135 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.90 g CO2 per page load
4.3 MB / 2.4 MB budget
4.3 MB transferred
135 requests
0.90 g CO2 per page load
JavaScript 2.1 MiB 49%
Images 1.6 MiB 38%
CSS 250.8 KiB 6%
Fonts 212.2 KiB 5%
HTML 100.3 KiB 2%
Other 7.5 KiB 0%
Other 5.2 KiB 0%
Other 2.9 KiB 0%
Other 2.6 KiB 0%
Other 2.4 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

Why this matters

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

Source: web.dev

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (4.2 MiB of 4.3 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
D
Page Weight Inventory
Action
135 resources · 4.3 MB · 272 KB savings available
FIX
135 resources · 4.3 MB · 272 KB savings available
Warning::
Page weight 3.3 MB over 1MB target
Got: 4.3 MB Expected: ≤ 1 MB
Info::
~272 KB of savings available
Warning::
133 third-party resources (99% of weight)
Info::
5 resources over 200KB
135 resources · 4.3 MiB · 133 third-party 3.3 MiB over 1MB target
JavaScript 49% · 2.1 MiB
Image 38% · 1.6 MiB
CSS 6% · 250.8 KiB
Font 5% · 212.2 KiB
Document 2% · 100.3 KiB
Other 0% · 13.5 KiB
Media 0% · 5.2 KiB

~272.0 KiB of savings available

Remove unused JavaScript: 272.0 KiB
B
Image Optimization
58 images, 0 KB saveable
REVIEW
58 images, 0 KB saveable
Info::
All images are well-optimized
58 images 1.6 MB
0 oversized -0 KB
20 legacy format
0 missing dimensions CLS risk
B
JS Execution Cost
965ms total JS execution
REVIEW
965ms total JS execution
Warning::
https://sched.com/: 338ms CPU time
Info::
Unattributable: 247ms CPU time
Info::
https://js.hs-analytics.net/analytics/177690210000...: 211ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=AW-663...: 57ms CPU time
Info::
https://js.hubspot.com/web-interactives-embed.js: 56ms CPU time
Warning::
Third-party scripts: 626ms (65% of total)

Main Thread Breakdown

Script Evaluation 42% Other 24% Style & Layout 20% Script Parsing & Compilation 6% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://sched.com/338ms61ms2ms1st
Unattributable247ms44ms0ms3rd
https://js.hs-analytics.net/analytics/1776902100000/22154207.js211ms151ms4ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-66345585857ms42ms15ms3rd
https://js.hubspot.com/web-interactives-embed.js56ms25ms3ms3rd
https://cdn.amplitude.com/libs/analytics-browser-2.39.0-min.js.gz55ms37ms9ms3rd
C
JS Bundles
Action
41 scripts, 272 KB unused
REVIEW
41 scripts, 272 KB unused
Warning::
https://cdn.amplitude.com/libs/plugin-session-repl...: 100 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-663...: 83 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.amplitude.com/script/ad683eb13531bfb45...: 36 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.amplitude.com/libs/analytics-browser-2...: 28 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.amplitude.com/script/ad683eb13531bfb45...: 24 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 272 KB
272 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.amplitude.com/libs/plugin-session-replay-browser-1.27.7-min.js.gz130 KB100 KB (78%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-663455858135 KB83 KB (62%)✓3rd
https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.experiment.js?ver=6.9.444 KB36 KB (83%)✓3rd
https://cdn.amplitude.com/libs/analytics-browser-2.39.0-min.js.gz57 KB28 KB (50%)✓3rd
https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.js44 KB24 KB (55%)✓3rd
https://www.gstatic.com/eureka/clank/146/cast_sender.js13 KB—✓3rd
https://snap.licdn.com/li.lms-analytics/insight.min.js19 KB—✓3rd
https://js.hs-scripts.com/22154207.js?integration=WordPress&ver=11.3.371 KB—✓3rd
https://wpc.sched.com/wp-content/plugins/wp-rocket/assets/js/lazyload/17.5/lazyload.min.js3 KB—✓3rd
https://js.hsadspixel.net/pixels.js4 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

B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
Last-Modified header present
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
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 (212 KB)
PASS
3 fonts (212 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

212 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 FCP 1.5 s LCP 1.9 shttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 13 ms — font-display: swaphttps://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2flUhRq6tzZclQEJ-Vdg-Iui... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2 — 125.6 KiB — 18 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2 — 39.2 KiB — 20 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 13 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
flUhRq6tzZclQEJ-Vdg-Iui... woff2 swap
Size 126 KB
Load time 18 ms
Start 1.2 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
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 39 KB
Load time 20 ms
Start 3.7 s
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)

Fixing the unchecked items could save ~63 KB and ~126 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
135 requests over 4060ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.5 s LCP 1.9 shttps://sched.com// https://sched.com/ — 200 — 32.4 KiB — 1.1 s — h2https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.jscdn.amplitude.com/script/ad683eb135... https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.js — 200 — 44.4 KiB — 41 ms — h2https://wpc.sched.com/wp-content/themes/sched/src/assets/js/head.jswpc.sched.com/wp-content/themes/sch... https://wpc.sched.com/wp-content/themes/sched/src/assets/js/head.js — 200 — 1.5 KiB — 25 ms — h2https://wpc.sched.com/wp-content/cache/min/1/wp-content/themes/sched/src/assets/js/head.js?ver=1774885347wpc.sched.com/wp-content/cache/min/... https://wpc.sched.com/wp-content/cache/min/1/wp-content/themes/sched/src/assets/js/head.js?ver=1774885347 — 200 — 1.2 KiB — 21 ms — h2https://fonts.googleapis.com/css?family=Material%20Icons%7CMaterial%20Icons%20Outlined%7CMaterial%20Icons%20Round&display=swapfonts.googleapis.com/css?family=Mat... https://fonts.googleapis.com/css?family=Material%20Icons%7CMaterial%20Icons%20Outlined%7CMaterial%20Icons%20Round&display=swap — 200 — 971 B — 26 ms — h2https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&family=Roboto:wght@400;700&family=Material+Icons&family=Material+Icons+Outlined&family=Inter:wght@400;500;700&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;900&family=Roboto:wght@400;700&family=Material+Icons&family=Material+Icons+Outlined&family=Inter:wght@400;500;700&display=swap — 200 — 2.3 KiB — 27 ms — h2https://wpc.sched.com/wp-content/cache/min/1/4cda5386d519b1a8e02702d020a6e60f.csswpc.sched.com/wp-content/cache/min/... https://wpc.sched.com/wp-content/cache/min/1/4cda5386d519b1a8e02702d020a6e60f.css — 200 — 162.8 KiB — 45 ms — h2https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.experiment.js?ver=6.9.4cdn.amplitude.com/script/ad683eb135... https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.experiment.js?ver=6.9.4 — 200 — 43.7 KiB — 41 ms — h2https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.async.jscdn.amplitude.com/script/ad683eb135... https://cdn.amplitude.com/script/ad683eb13531bfb457de6bb7929dcebb.async.js — 200 — 1.4 KiB — 5 ms — h2https://cdn.amplitude.com/libs/plugin-session-replay-browser-1.27.7-min.js.gzcdn.amplitude.com/libs/plugin-sessi... https://cdn.amplitude.com/libs/plugin-session-replay-browser-1.27.7-min.js.gz — 200 — 129.5 KiB — 18 ms — h2https://cdn.amplitude.com/libs/analytics-browser-2.39.0-min.js.gzcdn.amplitude.com/libs/analytics-br... https://cdn.amplitude.com/libs/analytics-browser-2.39.0-min.js.gz — 200 — 57.1 KiB — 8 ms — h2https://i0.wp.com/sched.com/wp-content/uploads/2025/01/home-page-desktop2.png?fit=1517%2C794&ssl=1i0.wp.com/sched.com/wp-content/uplo... https://i0.wp.com/sched.com/wp-content/uploads/2025/01/home-page-desktop2.png?fit=1517%2C794&ssl=1 — 200 — 125.7 KiB — 19 ms — h2data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2090%2035'%3E%3C/sv…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2090%2035'%3E%3C/sv… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20480%20272'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20480%20272'%3E%3C/… — 200 — 0 B — 0 ms — datahttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2fonts.gstatic.com/s/inter/v20/UcC73... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 200 — 47.3 KiB — 13 ms — h3https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2fonts.gstatic.com/s/materialicons/v... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2 — 200 — 125.6 KiB — 18 ms — h3data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20150%2064'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20150%2064'%3E%3C/s… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20151%2042'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20151%2042'%3E%3C/s… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20200%2089'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20200%2089'%3E%3C/s… — 200 — 0 B — 3 ms — datahttps://wpc.sched.com/wp-content/uploads/2025/05/home-page-desktop7-sm.pngwpc.sched.com/wp-content/uploads/20... https://wpc.sched.com/wp-content/uploads/2025/05/home-page-desktop7-sm.png — 200 — 118.9 KiB — 16 ms — h2https://player.vimeo.com/video/548082298?dnt=1&app_id=122963player.vimeo.com/video/548082298?dn... https://player.vimeo.com/video/548082298?dnt=1&app_id=122963 — 200 — 11.1 KiB — 331 ms — http/1.1data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20600%20165'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20600%20165'%3E%3C/… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20150%2069'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20150%2069'%3E%3C/s… — 200 — 0 B — 0 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20115%2042'%3E%3C/s…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20115%2042'%3E%3C/s… — 200 — 0 B — 0 ms — datahttps://player.vimeo.com/video/548082298?dnt=1&app_id=122963player.vimeo.com/video/548082298?dn... https://player.vimeo.com/video/548082298?dnt=1&app_id=122963 — 200 — 11.3 KiB — 629 ms — http/1.1data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20400%20306'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20400%20306'%3E%3C/… — 200 — 0 B — 3 ms — datadata:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20842%20888'%3E%3C/…www.w3.org/2000/svg'%20viewBox='0%2... data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20842%20888'%3E%3C/… — 200 — 0 B — 0 ms — 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h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.csswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.css — 200 — 41.6 KiB — 19 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 361.7 KiB — 42 ms — h3https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4www.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4 — 200 — 23 B — 261 ms — h3https://www.gstatic.com/recaptcha/api2/logo_48.pngwww.gstatic.com/recaptcha/api2/logo... https://www.gstatic.com/recaptcha/api2/logo_48.png — 200 — 2.2 KiB — 8 ms — h3https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2fonts.gstatic.com/s/roboto/v48/KFO7... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBA.woff2 — 200 — 39.2 KiB — 20 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 0 B — 23 ms — h3https://js-na1.hs-scripts.com/22154207.jsjs-na1.hs-scripts.com/22154207.js https://js-na1.hs-scripts.com/22154207.js — 200 — 889 B — 22 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
65% of JavaScript execution is third-party
First-party Third-party 626ms · 263KB · $8/mo
Unattributable
Other
Costly
Execution 247ms
Transfer 0 KB
Monthly Cost $3/mo
HubSpot Analytics
Analytics
Costly
Execution 211ms
Transfer 43 KB
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Optional
Execution 57ms
Transfer 135 KB
Unused 62%
Monthly Cost $1/mo
js.hubspot.com
Other
Optional
Execution 56ms
Transfer 28 KB
Monthly Cost $1/mo
Amplitude
Analytics
Optional
Execution 55ms
Transfer 57 KB
Unused 50%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 247ms and costs ~$3/month
  • HubSpot Analytics adds 211ms and costs ~$3/month

65% 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 247ms 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

HubSpot Analytics takes 211ms 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

62% 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

50% of Amplitude'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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