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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
4
PASS
8
INFO
2

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

Mobile Desktop
97
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.

1.20 s

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

1.26 s

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

202 ms

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

0.002

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

1.20 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.

4.64 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
14
8 PASS 4 REVIEW
B
Image Optimization
4 images, 0 KB saveable
REVIEW
4 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.
4 images 16 KB
0 oversized -0 KB
2 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

C
JS Execution Cost
Action
1099ms total JS execution
REVIEW
1099ms total JS execution
Warning::
https://www.typescriptlang.org/: 498ms CPU time
Warning::
https://www.typescriptlang.org/app-9b3a6007d51cd72...: 290ms CPU time
Info::
Unattributable: 183ms CPU time
Info::
https://www.typescriptlang.org/07c2af5afdf750a1639...: 73ms CPU time
Info::
https://www.typescriptlang.org/component---src-tem...: 56ms CPU time
Info::
Third-party scripts: 183ms (17% of total)

Main Thread Breakdown

Script Evaluation 33% Style & Layout 28% Other 20% Script Parsing & Compilation 10% Parse HTML & CSS 5% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://www.typescriptlang.org/498ms13ms4ms1st
https://www.typescriptlang.org/app-9b3a6007d51cd726e84d.js290ms251ms28ms1st
Unattributable183ms6ms0ms3rd
https://www.typescriptlang.org/07c2af5afdf750a1639f84255225a64498e50277-1d4a5140d7e50db63a96.js73ms55ms9ms1st
https://www.typescriptlang.org/component---src-templates-pages-index-tsx-c7dfa256f2fa8edf536a.js56ms38ms18ms1st
B
JS Bundles
7 scripts, 127 KB unused
REVIEW
7 scripts, 127 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://www.typescriptlang.org/app-9b3a6007d51cd72...: 30 KB unused (41%)
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/js/docsearch.js: 26 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 127 KB
127 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.typescriptlang.org/commons-a43cb90ce2f9a5d36341.js62 KB42 KB (71%)✓1st
https://www.typescriptlang.org/app-9b3a6007d51cd726e84d.js73 KB30 KB (41%)✓1st
https://consentdeliveryfd.azurefd.net/mscc/lib/v2/wcp-consent.js52 KB29 KB (57%)✓3rd
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
578 KB transferred, 23 requests
PASS
578 KB transferred, 23 requests
Info::
Page weighs 1.3 MB (578 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
578 KB / 2.4 MB budget
578 KB transferred
23 requests
0.12 g CO2 per page load
JavaScript 300.3 KiB 52%
Fonts 178.9 KiB 31%
HTML 69.2 KiB 12%
Images 16.3 KiB 3%
Other 6.0 KiB 1%
CSS 5.9 KiB 1%
Other 732 B 0%
Other 710 B 0%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
32% third-party, 0 ms blocking
PASS
32% third-party, 0 ms blocking
Info::
Third-party code accounts for 32% of page weight (182.3 KiB of 578.1 KiB)
Info::
Third-party blocking time is low (0 ms)
68%
32%
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+
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 1.2 s LCP 1.3 shttps://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://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: swaphttps://www.typescriptlang.org/fonts/CascadiaMono-SemiLight.woff2CascadiaMono-SemiLight.... https://www.typescriptlang.org/fonts/CascadiaMono-SemiLight.woff2 — 48.8 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
segoeui-bold.woff2 woff2 swap
Size 33 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
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
1
preload
1
dns-prefetch
—
prefetch
—

2 resource hints configured

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
23 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
17% of JavaScript execution is third-party
First-party Third-party 183ms · 0KB · $1/mo
Unattributable
Other
Optional
Execution 183ms
Transfer 0 KB
Monthly Cost $1/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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