Skip to content
https://slack.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
65
GRADE
D
FIX
5
REVIEW
2
PASS
5
INFO
2

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

Mobile Desktop
35
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

2.78 s

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

10.66 s

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

2.26 s

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

0.120

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

4.78 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.

36.21 s

Page Load Progression

741 ms
1.5 s
2.2 s
3.0 s
3.7 s
4.4 s
5.2 s
5.9 s
Checks
14
5 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
13.0 MB transferred, 218 requests
FIX
13.0 MB transferred, 218 requests
Critical::
Page weighs 20.7 MB (13.0 MB transferred)
Warning::
Images are 3.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.7 MB
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
Info::
Fonts are 239 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 239 KB
Warning::
218 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.7 g CO2 per page load
13.0 MB / 2.4 MB budget
13.0 MB transferred
218 requests
2.7 g CO2 per page load
Other 6.6 MiB 51%
Images 3.7 MiB 28%
JavaScript 2.1 MiB 16%
Fonts 239.1 KiB 2%
CSS 199.3 KiB 2%
HTML 84.5 KiB 1%
Other 68.3 KiB 1%
Other 13.5 KiB 0%
Other 7.5 KiB 0%
Other 544 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

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
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (12.9 MiB of 13.0 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
11199ms total JS execution
FIX
11199ms total JS execution
Warning::
Unattributable: 2941ms CPU time
Warning::
https://slack.com/: 1944ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-KH2...: 1685ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-QTJQ...: 983ms CPU time
Warning::
https://t.contentsquare.net/uxa/eaf9ce4ae4903.js: 622ms CPU time
Warning::
Third-party scripts: 9255ms (83% of total)

Main Thread Breakdown

Script Evaluation 47% Other 33% Style & Layout 7% Script Parsing & Compilation 6%
ScriptTotalScriptingParse/CompileParty
Unattributable2941ms161ms0ms3rd
https://slack.com/1944ms40ms9ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-KH2LPK1685ms1382ms115ms3rd
https://www.googletagmanager.com/gtag/js?id=G-QTJQME5M5D&cx=c&gtm=4e6411983ms837ms69ms3rd
https://t.contentsquare.net/uxa/eaf9ce4ae4903.js622ms534ms74ms3rd
https://www.googletagmanager.com/gtag/destination?id=DC-12632256&cx=c&gtm=4e6411591ms544ms43ms3rd
https://a.slack-edge.com/bv1-13-br/rollup-marketing.8312e05a3c017ab833de.marketing.min.js507ms332ms132ms3rd
https://cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js308ms223ms54ms3rd
https://www.googletagmanager.com/gtag/js?id=DC-11463663&cx=c&gtm=4e6411264ms213ms48ms3rd
https://tag.demandbase.com/n1qTRo0B.min.js263ms167ms7ms3rd

Showing top 10 of 20 scripts

F
JS Bundles
Action
41 scripts, 567 KB unused
FIX
41 scripts, 567 KB unused
Warning::
https://a.slack-edge.com/bv1-13-br/rollup-marketin...: 135 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://t.contentsquare.net/uxa/eaf9ce4ae4903.js: 75 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=DC-114...: 59 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/destination?...: 59 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202402.1...: 58 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 567 KB
567 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://a.slack-edge.com/bv1-13-br/rollup-marketing.8312e05a3c017ab833de.marketing.min.js186 KB135 KB (73%)✓3rd
https://t.contentsquare.net/uxa/eaf9ce4ae4903.js140 KB75 KB (54%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-11463663&cx=c&gtm=4e6411128 KB59 KB (46%)✓3rd
https://www.googletagmanager.com/gtag/destination?id=DC-12632256&cx=c&gtm=4e6411129 KB59 KB (45%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js105 KB58 KB (55%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KH2LPK196 KB57 KB (29%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-QTJQME5M5D&cx=c&gtm=4e6411178 KB51 KB (29%)✓3rd
https://a.slack-edge.com/bv1-13-br/marketing-core.cf1dd39ec9100fc5cc4f.marketing.min.js31 KB28 KB (91%)✓3rd
https://a.slack-edge.com/bv1-13-br/marketing-customer-videos.c547a581ff0c64e6cfa8.marketing.min.js25 KB24 KB (99%)✓3rd
https://a.slack-edge.com/bv1-13-br/swiper.c790778cd9fb4f6b41e1.marketing.min.js35 KB20 KB (58%)✓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
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
Image Optimization
Action
79 images, 0 KB saveable
REVIEW
79 images, 0 KB saveable
Warning::
https://a.slack-edge.com/fd21de4/marketing/img/nav... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://a.slack-edge.com/fd21de4/marketing/img/nav... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://a.slack-edge.com/38f0e7c/marketing/img/nav... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://a.slack-edge.com/c3ea545/marketing/img/hom... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://slack.com/marketing/img/homepage/true-pros... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://a.slack-edge.com/5cb5052/marketing/img/hom... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
79 images 3.7 MB
0 oversized -0 KB
67 legacy format
12 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

Performance issues directly impact user engagement and conversion rates.

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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
7 fonts (239 KB)
PASS
7 fonts (239 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

239 KB total

Render-blocking

0

of 7

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 FCP 2.8 s LCP 10.7 shttps://a.slack-edge.com/bv1-13-br/salesforce-sans-bold-edf948a2181aa81e6045.woff2salesforce-sans-bold-ed... https://a.slack-edge.com/bv1-13-br/salesforce-sans-bold-edf948a2181aa81e6045.woff2 — 27.5 KiB — 0 ms — font-display: swaphttps://a.slack-edge.com/bv1-13-br/salesforce-sans-semi-bold-f3873250b116e522a23d.woff2salesforce-sans-semi-bo... https://a.slack-edge.com/bv1-13-br/salesforce-sans-semi-bold-f3873250b116e522a23d.woff2 — 27.5 KiB — 0 ms — font-display: swaphttps://a.slack-edge.com/bv1-13-br/avant-garde-8402dfbd4149ce947d8b.woff2avant-garde-8402dfbd414... https://a.slack-edge.com/bv1-13-br/avant-garde-8402dfbd4149ce947d8b.woff2 — 66.9 KiB — 0 ms — font-display: swaphttps://a.slack-edge.com/bv1-13-br/salesforce-sans-regular-679547df303acfaf9b97.woff2salesforce-sans-regular... https://a.slack-edge.com/bv1-13-br/salesforce-sans-regular-679547df303acfaf9b97.woff2 — 27.5 KiB — 0 ms — font-display: swaphttps://a.slack-edge.com/bv1-13-br/salesforce-sans-light-italic-4033c989dfb65fb9645e.woff2salesforce-sans-light-i... https://a.slack-edge.com/bv1-13-br/salesforce-sans-light-italic-4033c989dfb65fb9645e.woff2 — 28.3 KiB — 0 ms — font-display: swaphttps://a.slack-edge.com/bv1-13-br/salesforce-sans-book-e71e6c0595be7a07330a.woff2salesforce-sans-book-e7... https://a.slack-edge.com/bv1-13-br/salesforce-sans-book-e71e6c0595be7a07330a.woff2 — 27.7 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 0 ms — font-display: swap
salesforce-sans-bold-ed... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
salesforce-sans-semi-bo... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
avant-garde-8402dfbd414... woff2 swap
Size 67 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
salesforce-sans-regular... woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
salesforce-sans-light-i... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
salesforce-sans-book-e7... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 0 ms
Start 0 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
1 hints, 0 missing preconnects
PASS
1 hints, 0 missing preconnects
Info::
Page uses 1 resource hint(s)

Current Resource Hints

preconnect
1
preload
—
dns-prefetch
—
prefetch
—

1 resource hints configured

Network Waterfall
218 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
83% of JavaScript execution is third-party
First-party Third-party 9255ms · 1319KB · $174/mo
Unattributable
Other
Costly
Execution 2941ms
Transfer 0 KB
Monthly Cost $55/mo
Google Tag Manager
Tag Manager
Costly
Execution 1685ms
Transfer 196 KB
Unused 29%
Monthly Cost $32/mo
Google Tag Manager
Tag Manager
Costly
Execution 983ms
Transfer 178 KB
Unused 29%
Monthly Cost $18/mo
t.contentsquare.net
Other
Costly
Execution 622ms
Transfer 140 KB
Unused 54%
Monthly Cost $12/mo
Google Tag Manager
Tag Manager
Costly
Execution 591ms
Transfer 129 KB
Unused 45%
Monthly Cost $11/mo
a.slack-edge.com
Other
Costly
Execution 507ms
Transfer 186 KB
Unused 73%
Monthly Cost $10/mo
OneTrust
Consent
Essential
Execution 308ms
Transfer 105 KB
Unused 55%
Monthly Cost $6/mo
Google Tag Manager
Tag Manager
Costly
Execution 264ms
Transfer 128 KB
Unused 46%
Monthly Cost $5/mo
tag.demandbase.com
Other
Costly
Execution 263ms
Transfer 19 KB
Monthly Cost $5/mo
b-code.liadm.com
Other
Costly
Execution 210ms
Transfer 47 KB
Monthly Cost $4/mo
a.slack-edge.com
Other
Optional
Execution 155ms
Transfer 35 KB
Unused 58%
Monthly Cost $3/mo
a.slack-edge.com
Other
Optional
Execution 147ms
Transfer 1 KB
Monthly Cost $3/mo
www.redditstatic.com
Other
Optional
Execution 109ms
Transfer 19 KB
Monthly Cost $2/mo
trk.techtarget.com
Other
Optional
Execution 100ms
Transfer 1 KB
Monthly Cost $2/mo
LinkedIn Insight
Advertising
Optional
Execution 89ms
Transfer 19 KB
Monthly Cost $2/mo
www.mczbf.com
Other
Optional
Execution 85ms
Transfer 13 KB
Monthly Cost $2/mo
www.youtube.com
Other
Optional
Execution 71ms
Transfer 11 KB
Monthly Cost $1/mo
a.slack-edge.com
Other
Optional
Execution 65ms
Transfer 84 KB
Monthly Cost $1/mo
OneTrust
Consent
Essential
Execution 57ms
Transfer 9 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 2941ms and costs ~$55/month
  • Google Tag Manager adds 1685ms and costs ~$32/month
  • Google Tag Manager adds 983ms and costs ~$18/month
  • t.contentsquare.net adds 622ms and costs ~$12/month
  • Google Tag Manager adds 591ms and costs ~$11/month
  • a.slack-edge.com adds 507ms and costs ~$10/month
  • Google Tag Manager adds 264ms and costs ~$5/month
  • tag.demandbase.com adds 263ms and costs ~$5/month
  • b-code.liadm.com adds 210ms and costs ~$4/month

83% 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

Unattributable takes 2941ms 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 1685ms 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 983ms 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

t.contentsquare.net takes 622ms 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

54% of t.contentsquare.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

Google Tag Manager takes 591ms 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.slack-edge.com takes 507ms 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

73% of a.slack-edge.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

55% 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

Google Tag Manager takes 264ms 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

tag.demandbase.com takes 263ms 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

b-code.liadm.com takes 210ms 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

58% of a.slack-edge.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.

Send Feedback