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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
1
REVIEW
6
PASS
5
INFO
2

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

Mobile Desktop
94
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.

437 ms

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

1.08 s

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

54 ms

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

0.097

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

1.55 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.

2.72 s

Page Load Progression

782 ms
1.6 s
2.3 s
3.1 s
3.9 s
4.7 s
5.5 s
6.3 s
Checks
14
5 PASS 6 REVIEW 1 FIX
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
Page Weight Budget
Action
1.9 MB transferred, 100 requests
REVIEW
1.9 MB transferred, 100 requests
Info::
Page weighs 5.4 MB (1.9 MB transferred)
Warning::
JavaScript is 1.3 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.3 MB
Info::
Fonts are 206 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 206 KB
Info::
100 HTTP requests
Info::
Estimated 0.40 g CO2 per page load
1.9 MB / 2.4 MB budget
1.9 MB transferred
100 requests
0.40 g CO2 per page load
JavaScript 1.3 MiB 66%
Images 295.7 KiB 15%
Fonts 205.9 KiB 10%
CSS 88.0 KiB 4%
HTML 44.7 KiB 2%
Other 24.4 KiB 1%
Other 3.6 KiB 0%
Other 281 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

B
Third-Party Impact
45% third-party, 0 ms blocking
REVIEW
45% third-party, 0 ms blocking
Info::
Third-party code accounts for 45% of page weight (893.5 KiB of 1.9 MiB)
Info::
Third-party blocking time is low (0 ms)
55%
45%
First-party Third-party
C
Image Optimization
Action
22 images, 0 KB saveable
REVIEW
22 images, 0 KB saveable
Warning::
https://uhf.microsoft.com/images/microsoft/RE1Mu3b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn-dynmedia-1.microsoft.com/is/image/micr... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
22 images 296 KB
0 oversized -0 KB
4 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

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

C
JS Execution Cost
Action
1156ms total JS execution
REVIEW
1156ms total JS execution
Warning::
https://www.microsoft.com/echo/etc.clientlibs/micr...: 275ms CPU time
Warning::
https://www.microsoft.com/pt-br: 255ms CPU time
Info::
Unattributable: 183ms CPU time
Info::
https://scripts.clarity.ms/0.8.59/clarity.js: 123ms CPU time
Info::
https://www.microsoft.com/echo/etc.clientlibs/micr...: 113ms CPU time
Info::
Third-party scripts: 359ms (31% of total)

Main Thread Breakdown

Script Evaluation 49% Other 22% Script Parsing & Compilation 12% Style & Layout 9% Parse HTML & CSS 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.microsoft.com/echo/etc.clientlibs/microsoft/components/structure/page/clientlibs/custom-oneds.ACSHASHbf880242325f20f5b8644293f4586135.min.js275ms151ms87ms1st
https://www.microsoft.com/pt-br255ms10ms2ms1st
Unattributable183ms2ms0ms3rd
https://scripts.clarity.ms/0.8.59/clarity.js123ms119ms3ms3rd
https://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-new/main-light.ACSHASHf8a6ecd849f93a3e5d989c0cee0ceb80.min.js113ms63ms18ms1st
https://www.microsoft.com/onerfstatics/marketingsites-eus-prod/shell/_scrf/js/themes=default/54-af9f9f/fb-2be034/21-f9d187/b0-50721e/d8-97d509/40-0bd7f9/ea-f1669e/9d-c6ea39/62-a72447/3e-a4ee50/7c-0bd6a1/60-37309a/db-bc0148/dc-7e9864/6d-c07ea1/6f-dafe8c/f6-aa5278/e6-5f3533/6d-1e7ed0/b7-cadaa7/62-2741f0/ca-40b7b0/4e-ee3a55/3e-f5c39b/c3-6454d7/f9-7592d3/d0-e64f3e/92-10345d/79-499886/7e-cda2d3/e7-1fe854/66-9d711a/38-b93a9e/de-884374/1f-100dea/33-abe4df/8f-61bee0?ver=2.0&_cf=02242021_3231&iife=182ms57ms5ms1st
https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/clientlibs/clientlib-base.ACSHASH019977c9939720784a32eb40d3774d9c.min.js71ms46ms12ms1st
https://mem.gfx.ms/scripts/me/MeControl/10.25136.1/pt-BR/meBoot.min.js53ms31ms9ms3rd
C
JS Bundles
Action
36 scripts, 125 KB unused
REVIEW
36 scripts, 125 KB unused
Warning::
https://www.microsoft.com/echo/etc.clientlibs/micr...: 64 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.microsoft.com/echo/etc.clientlibs/micr...: unminified — 47 KB could be saved
Warning::
https://www.microsoft.com/echo/etc.clientlibs/casc...: 40 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.microsoft.com/echo/etc.clientlibs/casc...: unminified — 9 KB could be saved
Warning::
https://www.microsoft.com/onerfstatics/marketingsi...: 21 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 125 KB
125 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-new/main-light.ACSHASHf8a6ecd849f93a3e5d989c0cee0ceb80.min.js113 KB64 KB (57%)✗1st
https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/clientlibs/clientlib-base.ACSHASH019977c9939720784a32eb40d3774d9c.min.js57 KB40 KB (70%)✗1st
https://www.microsoft.com/onerfstatics/marketingsites-eus-prod/shell/_scrf/js/themes=default/54-af9f9f/fb-2be034/21-f9d187/b0-50721e/d8-97d509/40-0bd7f9/ea-f1669e/9d-c6ea39/62-a72447/3e-a4ee50/7c-0bd6a1/60-37309a/db-bc0148/dc-7e9864/6d-c07ea1/6f-dafe8c/f6-aa5278/e6-5f3533/6d-1e7ed0/b7-cadaa7/62-2741f0/ca-40b7b0/4e-ee3a55/3e-f5c39b/c3-6454d7/f9-7592d3/d0-e64f3e/92-10345d/79-499886/7e-cda2d3/e7-1fe854/66-9d711a/38-b93a9e/de-884374/1f-100dea/33-abe4df/8f-61bee0?ver=2.0&_cf=02242021_3231&iife=137 KB21 KB (58%)✓1st
https://www.microsoft.com/echo/etc.clientlibs/microsoft/components/content/back-to-top-button/v1/back-to-top-button/clientlibs/sites.ACSHASH148bbe2eead6c5832c56691afb23e496.min.js1 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/clientlibs/clientlib-jquery.ACSHASH75d0cb3e9ff9fee40f5ce5fd93c17fb2.min.js33 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/exp-cookiecomp/v1.ACSHASHa238861e6209e4e02576ddf5d1749c8b.min.js2 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/cascade.component.authoring/dynamicclientsidelibs/handlerscripts/v1.ACSHASH6734c5d7a732130b83c7d4a6ba54dcec.min.js1 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/microsoft/components/content/universalheader/v1/universalheader/clientlibs/site.ACSHASH69d585e01cb601a02e396b34fdcab8c4.min.js7 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/microsoft/components/content/dynamic-price/v1/dynamic-price/clientlibs/sites.ACSHASHa26d031bf8c00f082570666bfff25659.min.js1 KB—✓1st
https://www.microsoft.com/echo/etc.clientlibs/microsoft/components/content/calltoaction/v1/calltoaction/clientlibs/site.ACSHASH6069c9c4123345cb32954882a5e52e8d.min.js1 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

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 (206 KB)
PASS
7 fonts (206 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

206 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 500 ms 1.0 s FCP 437 ms LCP 1.1 shttps://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Semibold/latest.woff2latest.woff2 https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Semibold/latest.woff2 — 28.9 KiB — 0 ms — font-display: swaphttps://c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.woff2latest.woff2 https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/normal/latest.woff2 — 33.5 KiB — 0 ms — font-display: swaphttps://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Bold/latest.woff2latest.woff2 https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/Bold/latest.woff2 — 29.6 KiB — 0 ms — font-display: swaphttps://c.s-microsoft.com/static/fonts/segoe-ui/west-european/semilight/latest.woff2latest.woff2 https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/semilight/latest.woff2 — 28.4 KiB — 0 ms — font-display: swaphttps://c.s-microsoft.com/static/fonts/segoe-ui/west-european/light/latest.woff2latest.woff2 https://c.s-microsoft.com/static/fonts/segoe-ui/west-european/light/latest.woff2 — 26.7 KiB — 0 ms — font-display: swaphttps://www.microsoft.com/mwf/_h/v3.54/mwf.app/fonts/mwfmdl2-v3.54.woffmwfmdl2-v3.54.woff https://www.microsoft.com/mwf/_h/v3.54/mwf.app/fonts/mwfmdl2-v3.54.woff — 26.4 KiB — 0 ms — font-display: swaphttps://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-new/resources/fonts/MWFFluentIcons.woff2?v=2.15.3MWFFluentIcons.woff2 https://www.microsoft.com/echo/etc.clientlibs/microsoft/clientlibs/clientlib-mwf-new/resources/fonts/MWFFluentIcons.woff2?v=2.15.3 — 32.3 KiB — 0 ms — font-display: swap
latest.woff2 woff2 swap
Size 29 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
latest.woff2 woff2 swap
Size 33 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
latest.woff2 woff2 swap
Size 30 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
latest.woff2 woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
latest.woff2 woff2 swap
Size 27 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
mwfmdl2-v3.54.woff woff swap
Size 26 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
MWFFluentIcons.woff2 woff2 swap
Size 32 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)

Fixing the unchecked items could save ~8 KB and ~16 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
Network Waterfall
100 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
31% of JavaScript execution is third-party
First-party Third-party 359ms · 87KB · $2/mo
Unattributable
Other
Optional
Execution 183ms
Transfer 0 KB
Monthly Cost $1/mo
Microsoft Clarity
Session Replay
Optional
Execution 123ms
Transfer 26 KB
Monthly Cost $1/mo
mem.gfx.ms
Other
Optional
Execution 53ms
Transfer 61 KB
Monthly Cost $0/mo

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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