Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

100

Accessibility

Best Practices

100

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

6.51 s

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

8.66 s

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

1.19 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.

6.51 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.

8.76 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

7 PASS 2 REVIEW 4 FIX

Page Weight Budget

Action

12.8 MB transferred, 125 requests

FIX

12.8 MB transferred, 125 requests

Page weighs 42.7 MB (12.8 MB transferred)

JavaScript is 6.6 MB — consider code splitting or lazy loading

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

Got: 6.6 MB

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

CSS is 346 KB — consider purging unused styles

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

Got: 346 KB

125 HTTP requests — consider bundling or reducing

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

Estimated 2.7 g CO2 per page load

12.8 MB transferred

125 requests

2.7 g CO2 per page load

JavaScript 6.6 MiB 51%

Other 4.0 MiB 31%

Images 1.6 MiB 12%

CSS 346.5 KiB 3%

HTML 144.2 KiB 1%

Other 105.2 KiB 1%

Other 775 B 0%

Other 371 B 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

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

Third-Party Impact

Action

100% third-party, 0 ms blocking

FIX

100% third-party, 0 ms blocking

Third-party code accounts for 100% of page weight (12.8 MiB of 12.8 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

Page Weight Inventory

Action

125 resources · 12.8 MB · 24 KB savings available

FIX

125 resources · 12.8 MB · 24 KB savings available

Page weight 11.8 MB over 1MB target

Got: 12.8 MB Expected: ≤ 1 MB

124 third-party resources (100% of weight)

15 resources over 200KB

125 resources · 12.8 MiB · 124 third-party 11.8 MiB over 1MB target

JavaScript 82% · 10.5 MiB

Image 13% · 1.7 MiB

CSS 3% · 346.5 KiB

Document 1% · 153.4 KiB

Other 1% · 106.7 KiB

~23.5 KiB of savings available

Remove unused JavaScript: 23.5 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

125 resources			12.8 MiB

HTTP Caching

Action

No cache headers

FIX

No cache headers

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.

Image Optimization

30 images, 0 KB saveable

REVIEW

30 images, 0 KB saveable

All images are well-optimized

30 images 1.6 MB

0 oversized -0 KB

20 legacy format

0 missing dimensions CLS risk

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

All text resources are properly compressed.

A+

JS Execution Cost

No JS execution data

PASS

No JS execution data

No significant JS execution detected

A+

Font Loading

No web fonts (system fonts)

PASS

No web fonts (system fonts)

No web fonts loaded — system fonts are fastest

No web fonts loaded — system fonts are optimal.

A+

JS Bundles

73 scripts, 24 KB unused

PASS

73 scripts, 24 KB unused

https://statics.teams.cdn.live.net/teams-modular-p...: 24 KB unused (73%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 24 KB

24 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/688-aefeb25c1246ebc0.js	33 KB	24 KB (73%)	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/integrities-366dd8eb61fa6c70d5ee.js	250 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/runtime-93536e095208a412.js	145 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/main-ef447342ef23ba94.js	69 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/117162-deba4e27d83fe2b7.js	3 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/868593-04718eb3f10db6ce.js	599 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/201714-16dacea3e94974c5.js	111 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/227040-12c22af3603cbb76.js	16 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/635301-76fabbfcfcd4917c.js	18 KB	—	✓	3rd
https://statics.teams.cdn.live.net/teams-modular-packages/hashed-assets/540676-e692e42ef835a895.js	10 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

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

Network Waterfall

125 requests over 7498ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

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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Performance

Page Load Progression

Green Hosting