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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
100
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.
100
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.

364 ms

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

384 ms

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

0 ms

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

0.018

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

364 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

386 ms

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
14
9 PASS 3 REVIEW
C
Image Optimization
Action
10 images, 0 KB saveable
REVIEW
10 images, 0 KB saveable
Warning::
https://www.typescriptlang.org/images/index/stack-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.typescriptlang.org/images/index/state-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
10 images 51 KB
0 oversized -0 KB
8 legacy format
2 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

B
JS Bundles
7 scripts, 124 KB unused
REVIEW
7 scripts, 124 KB unused
Warning::
https://www.typescriptlang.org/commons-a43cb90ce2f...: 42 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://consentdeliveryfd.azurefd.net/mscc/lib/v2/...: 29 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.typescriptlang.org/app-9b3a6007d51cd72...: 28 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.typescriptlang.org/js/docsearch.js: 26 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 124 KB
124 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.typescriptlang.org/commons-a43cb90ce2f9a5d36341.js62 KB42 KB (71%)✓1st
https://consentdeliveryfd.azurefd.net/mscc/lib/v2/wcp-consent.js52 KB29 KB (57%)✓3rd
https://www.typescriptlang.org/app-9b3a6007d51cd726e84d.js73 KB28 KB (38%)✓1st
https://www.typescriptlang.org/js/docsearch.js46 KB26 KB (56%)✓1st
https://www.typescriptlang.org/webpack-runtime-79d0f74f0d4869074125.js3 KB—✓1st
https://www.typescriptlang.org/07c2af5afdf750a1639f84255225a64498e50277-1d4a5140d7e50db63a96.js23 KB—✓1st
https://www.typescriptlang.org/component---src-templates-pages-index-tsx-c7dfa256f2fa8edf536a.js40 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

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+
Page Weight Budget
613 KB transferred, 29 requests
PASS
613 KB transferred, 29 requests
Info::
Page weighs 1.4 MB (613 KB transferred)
Info::
29 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
613 KB / 2.4 MB budget
613 KB transferred
29 requests
0.13 g CO2 per page load
JavaScript 300.1 KiB 49%
Fonts 178.9 KiB 29%
HTML 69.2 KiB 11%
Images 51.1 KiB 8%
Other 6.0 KiB 1%
CSS 5.9 KiB 1%
Other 711 B 0%
Other 570 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
30% third-party, 0 ms blocking
PASS
30% third-party, 0 ms blocking
Info::
Third-party code accounts for 30% of page weight (182.3 KiB of 612.6 KiB)
Info::
Third-party blocking time is low (0 ms)
70%
30%
First-party Third-party
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+
JS Execution Cost
328ms total JS execution
PASS
328ms total JS execution
Info::
https://www.typescriptlang.org/: 170ms CPU time
Info::
https://www.typescriptlang.org/app-9b3a6007d51cd72...: 86ms CPU time
Info::
Unattributable: 72ms CPU time
Info::
Third-party scripts: 72ms (22% of total)

Main Thread Breakdown

Style & Layout 31% Script Evaluation 27% Other 25% Script Parsing & Compilation 7% Rendering 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.typescriptlang.org/170ms3ms1ms1st
https://www.typescriptlang.org/app-9b3a6007d51cd726e84d.js86ms66ms7ms1st
Unattributable72ms2ms0ms3rd
A+
Font Loading
5 fonts (179 KB)
PASS
5 fonts (179 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

179 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 364 ms LCP 384 mshttps://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-semibold.woff2segoeui-semibold.woff2 https://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-semibold.woff2 — 31.9 KiB — 0 ms — font-display: swaphttps://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-regular.woff2segoeui-regular.woff2 https://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-regular.woff2 — 36.3 KiB — 0 ms — font-display: swaphttps://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-light.woff2segoeui-light.woff2 https://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-light.woff2 — 28.9 KiB — 0 ms — font-display: swaphttps://www.typescriptlang.org/fonts/CascadiaMono-SemiLight.woff2CascadiaMono-SemiLight.... https://www.typescriptlang.org/fonts/CascadiaMono-SemiLight.woff2 — 48.8 KiB — 0 ms — font-display: swaphttps://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-bold.woff2segoeui-bold.woff2 https://res-1.cdn.office.net/files/fabric-cdn-prod_20230815.002/assets/fonts/segoeui-westeuropean/segoeui-bold.woff2 — 33.0 KiB — 0 ms — font-display: swap
segoeui-semibold.woff2 woff2 swap
Size 32 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
segoeui-regular.woff2 woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
segoeui-light.woff2 woff2 swap
Size 29 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
CascadiaMono-SemiLight.... woff2 swap
Size 49 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
segoeui-bold.woff2 woff2 swap
Size 33 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=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
Cache-Control header is set
Got: max-age=600
Info::
Effective TTL: 10 minutes (max-age=600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=600

DirectiveValueMeaning
max-age600Cache for 10 minutes
Effective TTL: 600 seconds
Network Waterfall
29 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
22% of JavaScript execution is third-party
First-party Third-party 72ms · 0KB · $0/mo
Unattributable
Other
Optional
Execution 72ms
Transfer 0 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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