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Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
2
REVIEW
2
PASS
19
INFO
4

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

Mobile Desktop
47
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

7.06 s

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

8.79 s

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

460 ms

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

0.000

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

7.06 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.

10.38 s

Page Load Progression

761 ms
1.5 s
2.3 s
3.0 s
3.8 s
4.6 s
5.3 s
6.1 s
Checks
27
19 PASS 2 REVIEW 2 FIX
F
JS Execution Cost
Action
3960ms total JS execution
FIX
3960ms total JS execution
Warning::
https://rewordsai.app/assets/framework-DJH1pfSr.js: 1270ms CPU time
Warning::
https://rewordsai.app/: 915ms CPU time
Warning::
Unattributable: 607ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XZK9...: 449ms CPU time
Warning::
https://scripts.clarity.ms/0.8.69/clarity.js: 350ms CPU time
Info::
Third-party scripts: 1168ms (29% of total)

Main Thread Breakdown

Script Evaluation 51% Other 27% Style & Layout 13% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://rewordsai.app/assets/framework-DJH1pfSr.js1270ms1126ms11ms1st
https://rewordsai.app/915ms46ms46ms1st
Unattributable607ms59ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-XZK9WYVKKD449ms369ms73ms3rd
https://scripts.clarity.ms/0.8.69/clarity.js350ms307ms11ms3rd
https://umami.bestvid.net/recorder.js254ms48ms26ms3rd
https://accounts.google.com/gsi/client115ms72ms42ms3rd
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, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, must-revalidate

DirectiveValueMeaning
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
B
Third-Party Impact
52% third-party, 0 ms blocking
REVIEW
52% third-party, 0 ms blocking
Warning::
Third-party code accounts for 52% of page weight (372.4 KiB of 711.6 KiB)
Info::
Third-party blocking time is low (0 ms)
48%
52%
First-party Third-party
C
JS Bundles
Action
64 scripts, 193 KB unused
REVIEW
64 scripts, 193 KB unused
Warning::
https://accounts.google.com/gsi/client: 72 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XZK9...: 71 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://umami.bestvid.net/recorder.js: 50 KB unused (87%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 193 KB
193 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://accounts.google.com/gsi/client97 KB72 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XZK9WYVKKD166 KB71 KB (43%)✓3rd
https://umami.bestvid.net/recorder.js58 KB50 KB (87%)✓3rd
https://rewordsai.app/assets/global-error-CVl8f3Cz.js1 KB—✓1st
https://rewordsai.app/assets/framework-DJH1pfSr.js60 KB—✓1st
https://rewordsai.app/assets/rolldown-runtime-QTnfLwEv.js1 KB—✓1st
https://rewordsai.app/assets/url-utils-BQKFb685.js1 KB—✓1st
https://rewordsai.app/assets/error-BfKPhPMG.js1 KB—✓1st
https://rewordsai.app/assets/navigation-S2zqLEkv.js2 KB—✓1st
https://rewordsai.app/assets/react-DlbkFqaW.js13 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

A
Page Weight Budget
712 KB transferred, 89 requests
PASS
712 KB transferred, 89 requests
Info::
Page weighs 2.1 MB (712 KB transferred)
Warning::
JavaScript is 576 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 576 KB
Info::
89 HTTP requests
Info::
Estimated 0.15 g CO2 per page load
712 KB / 2.4 MB budget
712 KB transferred
89 requests
0.15 g CO2 per page load
JavaScript 576.2 KiB 81%
HTML 43.5 KiB 6%
CSS 31.0 KiB 4%
Images 26.9 KiB 4%
Other 25.8 KiB 4%
Other 6.1 KiB 1%
Other 1.3 KiB 0%
Other 910 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 27 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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::
1 URL(s) appear in multiple hints
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: /images/hero-menu-before-360.webp (preload+preload).
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: /images/hero-menu-before-360.webp (preload+preload).

Why this matters

Performance issues directly impact user engagement and conversion rates.

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Compression Algorithm
Main response uses brotli
PASS
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-store, must-revalidate
A+
Server-Timing Observability
3 Server-Timing entries advertised
PASS
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: RSC, Accept, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-P...
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A
Page Weight Inventory
89 resources · 712 KB · 193 KB savings available
PASS
89 resources · 712 KB · 193 KB savings available
Info::
Within 1MB page-weight target
Got: 712 KB
Info::
~193 KB of savings available
Warning::
23 third-party resources (52% of weight)
89 resources · 711.6 KiB · 23 third-party Within 1MB page-weight target
JavaScript 81% · 576.2 KiB
Image 7% · 51.5 KiB
Document 6% · 43.5 KiB
CSS 4% · 31.0 KiB
Other 1% · 9.5 KiB

~193.1 KiB of savings available

Remove unused JavaScript: 193.1 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
Total JS execution time is 4.0 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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
89 requests over 3790ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 7.1 s LCP 8.8 shttps://rewordsai.app// https://rewordsai.app/ — 200 — 43.5 KiB — 86 ms — h3https://rewordsai.app/images/hero-menu-before-360.webp/images/hero-menu-before-360.webp https://rewordsai.app/images/hero-menu-before-360.webp — 200 — 26.4 KiB — 152 ms — h3https://rewordsai.app/assets/index-DnvjvXh-.css/assets/index-DnvjvXh-.css https://rewordsai.app/assets/index-DnvjvXh-.css — 200 — 30.3 KiB — 160 ms — h3https://rewordsai.app/assets/global-error-CVl8f3Cz.js/assets/global-error-CVl8f3Cz.js https://rewordsai.app/assets/global-error-CVl8f3Cz.js — 200 — 1.0 KiB — 173 ms — h3https://rewordsai.app/assets/framework-DJH1pfSr.js/assets/framework-DJH1pfSr.js https://rewordsai.app/assets/framework-DJH1pfSr.js — 200 — 59.9 KiB — 346 ms — h3https://rewordsai.app/assets/rolldown-runtime-QTnfLwEv.js/assets/rolldown-runtime-QTnfLwEv.j... https://rewordsai.app/assets/rolldown-runtime-QTnfLwEv.js — 200 — 919 B — 158 ms — h3https://rewordsai.app/assets/url-utils-BQKFb685.js/assets/url-utils-BQKFb685.js https://rewordsai.app/assets/url-utils-BQKFb685.js — 200 — 1.4 KiB — 182 ms — h3https://rewordsai.app/assets/error-BfKPhPMG.js/assets/error-BfKPhPMG.js https://rewordsai.app/assets/error-BfKPhPMG.js — 200 — 962 B — 182 ms — h3https://rewordsai.app/assets/navigation-S2zqLEkv.js/assets/navigation-S2zqLEkv.js https://rewordsai.app/assets/navigation-S2zqLEkv.js — 200 — 1.6 KiB — 272 ms — h3https://rewordsai.app/assets/react-DlbkFqaW.js/assets/react-DlbkFqaW.js https://rewordsai.app/assets/react-DlbkFqaW.js — 200 — 13.5 KiB — 180 ms — h3https://rewordsai.app/assets/BaseLink-2VVnD4hp.js/assets/BaseLink-2VVnD4hp.js https://rewordsai.app/assets/BaseLink-2VVnD4hp.js — 200 — 5.8 KiB — 206 ms — h3https://rewordsai.app/assets/locale-BQ4hC9K3.js/assets/locale-BQ4hC9K3.js https://rewordsai.app/assets/locale-BQ4hC9K3.js — 200 — 2.5 KiB — 259 ms — h3https://rewordsai.app/assets/react-client-CAjdHkmk.js/assets/react-client-CAjdHkmk.js https://rewordsai.app/assets/react-client-CAjdHkmk.js — 200 — 628 B — 215 ms — h3https://rewordsai.app/assets/layout-segment-context-B0vqr_nk.js/assets/layout-segment-context-B0vq... https://rewordsai.app/assets/layout-segment-context-B0vqr_nk.js — 200 — 706 B — 302 ms — h3https://rewordsai.app/assets/NextIntlClientProvider-d9oaY35C.js/assets/NextIntlClientProvider-d9oa... https://rewordsai.app/assets/NextIntlClientProvider-d9oaY35C.js — 200 — 654 B — 333 ms — h3https://rewordsai.app/assets/intl-recovery-boundary-D5jorRD5.js/assets/intl-recovery-boundary-D5jo... https://rewordsai.app/assets/intl-recovery-boundary-D5jorRD5.js — 200 — 1.2 KiB — 341 ms — h3https://rewordsai.app/assets/dist-BqFYcBMN.js/assets/dist-BqFYcBMN.js https://rewordsai.app/assets/dist-BqFYcBMN.js — 200 — 2.0 KiB — 324 ms — h3https://rewordsai.app/assets/auth-modal-provider-CpwWpPld.js/assets/auth-modal-provider-CpwWpPl... https://rewordsai.app/assets/auth-modal-provider-CpwWpPld.js — 200 — 1.9 KiB — 270 ms — h3https://rewordsai.app/assets/dynamic-JvjZAPEJ.js/assets/dynamic-JvjZAPEJ.js https://rewordsai.app/assets/dynamic-JvjZAPEJ.js — 200 — 1.5 KiB — 322 ms — h3https://rewordsai.app/assets/track-CUruYeSl.js/assets/track-CUruYeSl.js https://rewordsai.app/assets/track-CUruYeSl.js — 200 — 1.7 KiB — 332 ms — h3https://rewordsai.app/assets/promo-t9XhZ7QR.js/assets/promo-t9XhZ7QR.js https://rewordsai.app/assets/promo-t9XhZ7QR.js — 200 — 1.2 KiB — 304 ms — h3https://rewordsai.app/assets/login-promo-provider-Dcyz6WT7.js/assets/login-promo-provider-Dcyz6W... https://rewordsai.app/assets/login-promo-provider-Dcyz6WT7.js — 200 — 1.8 KiB — 304 ms — h3https://rewordsai.app/assets/client-sxLoWGEo.js/assets/client-sxLoWGEo.js https://rewordsai.app/assets/client-sxLoWGEo.js — 200 — 12.1 KiB — 317 ms — h3https://rewordsai.app/assets/rewords-device-7jIR_QxH.js/assets/rewords-device-7jIR_QxH.js https://rewordsai.app/assets/rewords-device-7jIR_QxH.js — 200 — 1016 B — 320 ms — h3https://rewordsai.app/assets/pricing-modal-provider-Dr-ZEVfu.js/assets/pricing-modal-provider-Dr-Z... https://rewordsai.app/assets/pricing-modal-provider-Dr-ZEVfu.js — 200 — 3.9 KiB — 306 ms — h3https://rewordsai.app/assets/utils-DXalBF5w.js/assets/utils-DXalBF5w.js https://rewordsai.app/assets/utils-DXalBF5w.js — 200 — 9.0 KiB — 337 ms — h3https://rewordsai.app/assets/check-CX-FwU1S.js/assets/check-CX-FwU1S.js https://rewordsai.app/assets/check-CX-FwU1S.js — 200 — 620 B — 329 ms — h3https://rewordsai.app/assets/createLucideIcon-BRWvWrMn.js/assets/createLucideIcon-BRWvWrMn.j... https://rewordsai.app/assets/createLucideIcon-BRWvWrMn.js — 200 — 1.2 KiB — 307 ms — h3https://rewordsai.app/assets/loader-circle-Cxy4jRlv.js/assets/loader-circle-Cxy4jRlv.js https://rewordsai.app/assets/loader-circle-Cxy4jRlv.js — 200 — 627 B — 312 ms — h3https://rewordsai.app/assets/sparkles-DoLysNxV.js/assets/sparkles-DoLysNxV.js https://rewordsai.app/assets/sparkles-DoLysNxV.js — 200 — 792 B — 328 ms — h3
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 7.1 s LCP 8.8 shttps://rewordsai.app// https://rewordsai.app/ — 200 — 43.5 KiB — 86 ms — h3https://rewordsai.app/images/hero-menu-before-360.webp/images/hero-menu-before-360.webp https://rewordsai.app/images/hero-menu-before-360.webp — 200 — 26.4 KiB — 152 ms — h3https://rewordsai.app/assets/index-DnvjvXh-.css/assets/index-DnvjvXh-.css https://rewordsai.app/assets/index-DnvjvXh-.css — 200 — 30.3 KiB — 160 ms — h3https://rewordsai.app/assets/global-error-CVl8f3Cz.js/assets/global-error-CVl8f3Cz.js https://rewordsai.app/assets/global-error-CVl8f3Cz.js — 200 — 1.0 KiB — 173 ms — h3https://rewordsai.app/assets/framework-DJH1pfSr.js/assets/framework-DJH1pfSr.js https://rewordsai.app/assets/framework-DJH1pfSr.js — 200 — 59.9 KiB — 346 ms — h3https://rewordsai.app/assets/rolldown-runtime-QTnfLwEv.js/assets/rolldown-runtime-QTnfLwEv.j... https://rewordsai.app/assets/rolldown-runtime-QTnfLwEv.js — 200 — 919 B — 158 ms — h3https://rewordsai.app/assets/url-utils-BQKFb685.js/assets/url-utils-BQKFb685.js https://rewordsai.app/assets/url-utils-BQKFb685.js — 200 — 1.4 KiB — 182 ms — h3https://rewordsai.app/assets/error-BfKPhPMG.js/assets/error-BfKPhPMG.js https://rewordsai.app/assets/error-BfKPhPMG.js — 200 — 962 B — 182 ms — h3https://rewordsai.app/assets/navigation-S2zqLEkv.js/assets/navigation-S2zqLEkv.js https://rewordsai.app/assets/navigation-S2zqLEkv.js — 200 — 1.6 KiB — 272 ms — h3https://rewordsai.app/assets/react-DlbkFqaW.js/assets/react-DlbkFqaW.js https://rewordsai.app/assets/react-DlbkFqaW.js — 200 — 13.5 KiB — 180 ms — h3https://rewordsai.app/assets/BaseLink-2VVnD4hp.js/assets/BaseLink-2VVnD4hp.js https://rewordsai.app/assets/BaseLink-2VVnD4hp.js — 200 — 5.8 KiB — 206 ms — h3https://rewordsai.app/assets/locale-BQ4hC9K3.js/assets/locale-BQ4hC9K3.js https://rewordsai.app/assets/locale-BQ4hC9K3.js — 200 — 2.5 KiB — 259 ms — h3https://rewordsai.app/assets/react-client-CAjdHkmk.js/assets/react-client-CAjdHkmk.js https://rewordsai.app/assets/react-client-CAjdHkmk.js — 200 — 628 B — 215 ms — h3https://rewordsai.app/assets/layout-segment-context-B0vqr_nk.js/assets/layout-segment-context-B0vq... https://rewordsai.app/assets/layout-segment-context-B0vqr_nk.js — 200 — 706 B — 302 ms — h3https://rewordsai.app/assets/NextIntlClientProvider-d9oaY35C.js/assets/NextIntlClientProvider-d9oa... https://rewordsai.app/assets/NextIntlClientProvider-d9oaY35C.js — 200 — 654 B — 333 ms — h3https://rewordsai.app/assets/intl-recovery-boundary-D5jorRD5.js/assets/intl-recovery-boundary-D5jo... https://rewordsai.app/assets/intl-recovery-boundary-D5jorRD5.js — 200 — 1.2 KiB — 341 ms — h3https://rewordsai.app/assets/dist-BqFYcBMN.js/assets/dist-BqFYcBMN.js https://rewordsai.app/assets/dist-BqFYcBMN.js — 200 — 2.0 KiB — 324 ms — h3https://rewordsai.app/assets/auth-modal-provider-CpwWpPld.js/assets/auth-modal-provider-CpwWpPl... 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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
29% of JavaScript execution is third-party
First-party Third-party 1168ms · 346KB · €6/mo
Google Tag Manager
Tag Manager
Costly
Execution 449ms
Transfer 166 KB
Unused 43%
Monthly Cost €2/mo
Microsoft Clarity
Session Replay
Costly
Execution 350ms
Transfer 25 KB
Monthly Cost €2/mo
umami.bestvid.net
Other
Costly
Execution 254ms
Transfer 58 KB
Unused 87%
Monthly Cost €1/mo
accounts.google.com
Other
Optional
Execution 115ms
Transfer 97 KB
Unused 75%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 449ms and costs ~€2/month
  • Microsoft Clarity adds 350ms and costs ~€2/month
  • umami.bestvid.net adds 254ms and costs ~€1/month

Google Tag Manager takes 449ms 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

Microsoft Clarity 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

umami.bestvid.net takes 254ms 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

87% of umami.bestvid.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

75% of accounts.google.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

Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-07-28 — 2026-08-24)

LCP (p75)

2722 ms

70% good

INP (p75)

217 ms

72% good

CLS (p75)

0.080

77% good

FCP (p75)

2582 ms

TTFB (p75)

1932 ms

Image Optimization
12 images, 50 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

12

Total Size

50 KB

1 missing lazy loading
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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