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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
71
GRADE
C
FIX
3
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
40
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
69
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

1.16 s

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

3.33 s

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

1.85 s

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

0.000

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

6.15 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.

12.60 s

Page Load Progression

2.8 s
5.5 s
8.3 s
11.0 s
13.8 s
16.6 s
19.3 s
22.1 s
Checks
14
6 PASS 3 REVIEW 3 FIX
F
Page Weight Budget
Action
20.9 MB transferred, 437 requests
FIX
20.9 MB transferred, 437 requests
Critical::
Page weighs 34.3 MB (20.9 MB transferred)
Warning::
Images are 6.2 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 6.2 MB
Warning::
JavaScript is 5.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 5.4 MB
Info::
CSS is 431 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 431 KB
Warning::
437 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 4.4 g CO2 per page load
20.9 MB / 2.4 MB budget
20.9 MB transferred
437 requests
4.4 g CO2 per page load
Other 8.6 MiB 41%
Images 6.2 MiB 30%
JavaScript 5.4 MiB 26%
CSS 431.0 KiB 2%
Fonts 124.1 KiB 1%
HTML 102.0 KiB 0%
Other 93.3 KiB 0%
Other 14.9 KiB 0%
Other 10.7 KiB 0%
Other 3.4 KiB 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

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

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

F
JS Execution Cost
Action
18776ms total JS execution
FIX
18776ms total JS execution
Warning::
https://www.toyota.com/: 7381ms CPU time
Warning::
https://www.toyota.com/etc.clientlibs/tcom/clientl...: 2151ms CPU time
Warning::
https://f98792672267.edge.sdk.awswaf.com/f98792672...: 1997ms CPU time
Warning::
Unattributable: 1488ms CPU time
Warning::
https://nexus.toyota.com/toyotanational/t-com-p/Bo...: 1172ms CPU time
Info::
Third-party scripts: 8228ms (44% of total)

Main Thread Breakdown

Script Evaluation 42% Other 33% Style & Layout 13% Rendering 6% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
https://www.toyota.com/7381ms32ms4ms1st
https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-sitev2.min.2ff33dd65159cc8f7b2c4477f2cebac1.js2151ms977ms15ms1st
https://f98792672267.edge.sdk.awswaf.com/f98792672267/c394e383e870/challenge.js1997ms1818ms58ms3rd
Unattributable1488ms106ms0ms3rd
https://nexus.toyota.com/toyotanational/t-com-p/Bootstrap.js1172ms957ms59ms3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js606ms537ms38ms3rd
https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/js/92070.d0a408656e6f6f84090c.js426ms398ms0ms1st
https://t.contentsquare.net/uxa/4f158e824c11b.js383ms341ms31ms3rd
https://tagging.shiftdigitalapps.io/id/sda_id.js?ns=SDA304ms191ms0ms3rd
https://scripts.inmarkethub.com/conversion-tracking/v1.js229ms219ms2ms3rd

Showing top 10 of 36 scripts

F
JS Bundles
Action
135 scripts, 2.3 MB unused
FIX
135 scripts, 2.3 MB unused
Warning::
https://f98792672267.edge.sdk.awswaf.com/f98792672...: 262 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 179 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sd.iperceptions.com/ius-552c4685f10c444b12...: 175 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sd.iperceptions.com/ius-552c4685f10c444b12...: unminified — 74 KB could be saved
Info::
Total unused JavaScript: 2.3 MB
2341 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://f98792672267.edge.sdk.awswaf.com/f98792672267/c394e383e870/challenge.js506 KB262 KB (52%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js0 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB179 KB (49%)✓3rd
https://sd.iperceptions.com/ius-552c4685f10c444b12afbe0e3c7dc445/30434_639077188758549825245 KB175 KB (72%)✗3rd
https://t.contentsquare.net/uxa/4f158e824c11b.js184 KB121 KB (66%)✓3rd
https://www.googletagmanager.com/gtag/js?id=DC-663059129 KB97 KB (76%)✓3rd
https://cdn.dg.toyota.com/deploy/dg-ui/latest/toyota/common.Dy0iIUOj.min.js108 KB76 KB (71%)✓3rd
https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-sitev2.min.2ff33dd65159cc8f7b2c4477f2cebac1.js132 KB73 KB (59%)✓1st
https://cdn.dg.toyota.com/deploy/dg-ui/latest/toyota/vendor.05sA14IW.min.js144 KB67 KB (47%)✓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
Third-Party Impact
49% third-party, 0 ms blocking
REVIEW
49% third-party, 0 ms blocking
Info::
Third-party code accounts for 49% of page weight (10.3 MiB of 20.9 MiB)
Info::
Third-party blocking time is low (0 ms)
51%
49%
First-party Third-party
B
Image Optimization
138 images, 0 KB saveable
REVIEW
138 images, 0 KB saveable
Info::
All images are well-optimized
138 images 6.2 MB
0 oversized -0 KB
78 legacy format
0 missing dimensions CLS risk
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
6 fonts (124 KB)
PASS
6 fonts (124 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

124 KB total

Render-blocking

0

of 6

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 1.2 s LCP 3.3 shttps://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Light/ToyotaType-Light.woff2ToyotaType-Light.woff2 https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Light/ToyotaType-Light.woff2 — 17.8 KiB — 0 ms — font-display: swaphttps://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Regular/ToyotaType-Regular.woff2ToyotaType-Regular.woff2 https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Regular/ToyotaType-Regular.woff2 — 18.1 KiB — 0 ms — font-display: swaphttps://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Semibold/ToyotaType-Semibold.woff2ToyotaType-Semibold.woff2 https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Semibold/ToyotaType-Semibold.woff2 — 17.7 KiB — 0 ms — font-display: swaphttps://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Book/ToyotaType-Book.woff2ToyotaType-Book.woff2 https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Book/ToyotaType-Book.woff2 — 17.9 KiB — 0 ms — font-display: swaphttps://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Bold/ToyotaType-Bold.woff2ToyotaType-Bold.woff2 https://www.toyota.com/etc.clientlibs/tcom/clientlibs/clientlib-site/resources/fonts/ToyotaType-Bold/ToyotaType-Bold.woff2 — 18.6 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
ToyotaType-Light.woff2 woff2 swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ToyotaType-Regular.woff2 woff2 swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ToyotaType-Semibold.woff2 woff2 swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ToyotaType-Book.woff2 woff2 swap
Size 18 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ToyotaType-Bold.woff2 woff2 swap
Size 19 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
HTTP Caching
max-age=31536000 (52 weeks)
PASS
max-age=31536000 (52 weeks)
Info::
Cache-Control header is set
Got: max-age=31536000, public
Info::
Effective TTL: 52 weeks (max-age=31536000)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=31536000, public

DirectiveValueMeaning
max-age31536000Cache for 52 weeks
public—Any cache may store this response
Effective TTL: 31536000 seconds
Network Waterfall
437 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
44% of JavaScript execution is third-party
First-party Third-party 8228ms · 3134KB · €44/mo
f98792672267.edge.sdk.awswaf.com
Other
Costly
Execution 1997ms
Transfer 506 KB
Unused 52%
Monthly Cost €11/mo
Unattributable
Other
Costly
Execution 1488ms
Transfer 0 KB
Monthly Cost €8/mo
nexus.toyota.com
Other
Costly
Execution 1172ms
Transfer 192 KB
Unused 30%
Monthly Cost €6/mo
www.gstatic.com
Other
Costly
Execution 606ms
Transfer 0 KB
Unused 49%
Monthly Cost €3/mo
t.contentsquare.net
Other
Costly
Execution 383ms
Transfer 184 KB
Unused 66%
Monthly Cost €2/mo
tagging.shiftdigitalapps.io
Other
Costly
Execution 304ms
Transfer 1 KB
Monthly Cost €2/mo
scripts.inmarkethub.com
Other
Costly
Execution 229ms
Transfer 15 KB
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Costly
Execution 200ms
Transfer 172 KB
Unused 39%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 178ms
Transfer 144 KB
Unused 39%
Monthly Cost €1/mo
tagging.shiftdigitalapps.io
Other
Optional
Execution 161ms
Transfer 98 KB
Unused 36%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 141ms
Transfer 129 KB
Unused 42%
Monthly Cost €1/mo
nexus.toyota.com
Other
Optional
Execution 108ms
Transfer 53 KB
Unused 60%
Monthly Cost €1/mo
sd.iperceptions.com
Other
Optional
Execution 106ms
Transfer 245 KB
Unused 72%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 104ms
Transfer 129 KB
Unused 47%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 103ms
Transfer 136 KB
Unused 40%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 102ms
Transfer 136 KB
Unused 40%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 93ms
Transfer 137 KB
Unused 40%
Monthly Cost €0/mo
sdtagging.azureedge.net
Other
Optional
Execution 91ms
Transfer 138 KB
Unused 18%
Monthly Cost €0/mo
sc-static.net
Other
Optional
Execution 90ms
Transfer 25 KB
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Optional
Execution 90ms
Transfer 165 KB
Unused 38%
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Optional
Execution 75ms
Transfer 129 KB
Unused 47%
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Optional
Execution 74ms
Transfer 129 KB
Unused 44%
Monthly Cost €0/mo
Google Tag Manager
Tag Manager
Optional
Execution 74ms
Transfer 129 KB
Unused 46%
Monthly Cost €0/mo
nexus.toyota.com
Other
Optional
Execution 71ms
Transfer 19 KB
Monthly Cost €0/mo
s.pinimg.com
Other
Optional
Execution 64ms
Transfer 28 KB
Monthly Cost €0/mo
Facebook Pixel
Advertising
Optional
Execution 62ms
Transfer 95 KB
Unused 38%
Monthly Cost €0/mo
universal.iperceptions.com
Other
Optional
Execution 61ms
Transfer 4 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • f98792672267.edge.sdk.awswaf.com adds 1997ms and costs ~€11/month
  • Unattributable adds 1488ms and costs ~€8/month
  • nexus.toyota.com adds 1172ms and costs ~€6/month
  • www.gstatic.com adds 606ms and costs ~€3/month
  • t.contentsquare.net adds 383ms and costs ~€2/month
  • tagging.shiftdigitalapps.io adds 304ms and costs ~€2/month
  • scripts.inmarkethub.com adds 229ms and costs ~€1/month
  • Google Tag Manager adds 200ms and costs ~€1/month

44% 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

f98792672267.edge.sdk.awswaf.com takes 1997ms 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 f98792672267.edge.sdk.awswaf.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

Unattributable takes 1488ms 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

nexus.toyota.com takes 1172ms 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

www.gstatic.com takes 606ms 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 383ms 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

66% 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

tagging.shiftdigitalapps.io takes 304ms 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

scripts.inmarkethub.com takes 229ms 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 200ms 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

60% of nexus.toyota.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

72% of sd.iperceptions.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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