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https://www.typst.app

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
4
PASS
7
INFO
2

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

Mobile Desktop
99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
98
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.

536 ms

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

936 ms

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

51 ms

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.

767 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.

1.05 s

Page Load Progression

423 ms
846 ms
1.3 s
1.7 s
2.1 s
2.5 s
3.0 s
3.4 s
Checks
14
7 PASS 4 REVIEW 1 FIX
F
Page Weight Budget
Action
3.4 MB transferred, 98 requests
FIX
3.4 MB transferred, 98 requests
Warning::
Page weighs 4.3 MB (3.4 MB transferred)
Info::
Fonts are 401 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 401 KB
Info::
98 HTTP requests
Info::
Estimated 0.70 g CO2 per page load
3.4 MB / 2.4 MB budget
3.4 MB transferred
98 requests
0.70 g CO2 per page load
Other 1.7 MiB 52%
Images 864.2 KiB 25%
Fonts 400.6 KiB 12%
Other 222.9 KiB 6%
JavaScript 70.2 KiB 2%
Other 57.9 KiB 2%
HTML 30.4 KiB 1%
CSS 18.0 KiB 1%
Other 1.1 KiB 0%
0 2.4 MB 4.9 MB
Over budget

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
Image Optimization
54 images, 0 KB saveable
REVIEW
54 images, 0 KB saveable
Info::
All images are well-optimized
54 images 864 KB
0 oversized -0 KB
17 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1185ms total JS execution
REVIEW
1185ms total JS execution
Warning::
Unattributable: 504ms CPU time
Warning::
https://www.typst.app/: 477ms CPU time
Info::
https://www.typst.app/_astro/HomePage.astro_astro_...: 148ms CPU time
Info::
https://misc-a.typst.app/js/script.manual.pageview...: 56ms CPU time
Info::
Third-party scripts: 560ms (47% of total)

Main Thread Breakdown

Other 49% Style & Layout 22% Script Evaluation 17% Rendering 8% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
Unattributable504ms34ms0ms3rd
https://www.typst.app/477ms13ms4ms1st
https://www.typst.app/_astro/HomePage.astro_astro_type_script_index_0_lang.aVL5KTd5.js148ms140ms0ms1st
https://misc-a.typst.app/js/script.manual.pageview-props.js56ms5ms0ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
A+
Third-Party Impact
7% third-party, 0 ms blocking
PASS
7% third-party, 0 ms blocking
Info::
Third-party code accounts for 7% of page weight (225.5 KiB of 3.4 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
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
9 fonts (401 KB)
PASS
9 fonts (401 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

401 KB total

Render-blocking

0

of 9

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 536 ms LCP 936 mshttps://www.typst.app/assets/fonts/HKGrotesk-ExtraBold.woff2HKGrotesk-ExtraBold.woff2 https://www.typst.app/assets/fonts/HKGrotesk-ExtraBold.woff2 — 35.4 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-Black.woff2HKGrotesk-Black.woff2 https://www.typst.app/assets/fonts/HKGrotesk-Black.woff2 — 34.3 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-Regular.woff2HKGrotesk-Regular.woff2 https://www.typst.app/assets/fonts/HKGrotesk-Regular.woff2 — 34.0 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-SemiBold.woff2HKGrotesk-SemiBold.woff2 https://www.typst.app/assets/fonts/HKGrotesk-SemiBold.woff2 — 34.9 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/CascadiaMono-Bold.woff2CascadiaMono-Bold.woff2 https://www.typst.app/assets/fonts/CascadiaMono-Bold.woff2 — 132.5 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/CascadiaMono-Regular-Sub.woff2CascadiaMono-Regular-Su... https://www.typst.app/assets/fonts/CascadiaMono-Regular-Sub.woff2 — 24.0 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-Medium.woff2HKGrotesk-Medium.woff2 https://www.typst.app/assets/fonts/HKGrotesk-Medium.woff2 — 34.7 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-Bold.woff2HKGrotesk-Bold.woff2 https://www.typst.app/assets/fonts/HKGrotesk-Bold.woff2 — 35.7 KiB — 0 ms — font-display: swaphttps://www.typst.app/assets/fonts/HKGrotesk-BlackItalic.woff2HKGrotesk-BlackItalic.w... https://www.typst.app/assets/fonts/HKGrotesk-BlackItalic.woff2 — 35.1 KiB — 0 ms — font-display: swap
HKGrotesk-ExtraBold.woff2 woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-Black.woff2 woff2 swap
Size 34 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-Regular.woff2 woff2 swap
Size 34 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-SemiBold.woff2 woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
CascadiaMono-Bold.woff2 woff2 swap
Size 133 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
CascadiaMono-Regular-Su... woff2 swap
Size 24 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-Medium.woff2 woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-Bold.woff2 woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
HKGrotesk-BlackItalic.w... woff2 swap
Size 35 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 ~66 KB and ~132 ms

A+
JS Bundles
17 scripts, 0 KB unused
PASS
17 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.typst.app/_astro/InlineLinkScript.astro_astro_type_script_index_0_lang.Dx5cWbm6.js1 KB—✓1st
https://www.typst.app/_astro/Start.astro_astro_type_script_index_0_lang.Dy4hGMEZ.js3 KB—✓1st
https://www.typst.app/_astro/ScrollSnapCarousel.astro_astro_type_script_index_0_lang.r42DmlhC.js1 KB—✓1st
https://www.typst.app/_astro/LimitlessPower.astro_astro_type_script_index_0_lang.CmoFGNY9.js1 KB—✓1st
https://www.typst.app/_astro/DemoVideo.astro_astro_type_script_index_0_lang.Gt4xVFuK.js1 KB—✓1st
https://www.typst.app/_astro/Productivity.astro_astro_type_script_index_0_lang.IPCodW12.js2 KB—✓1st
https://www.typst.app/_astro/PillScrolling.astro_astro_type_script_index_0_lang.BfDJXYNk.js2 KB—✓1st
https://www.typst.app/_astro/PricingContactModal.astro_astro_type_script_index_0_lang.B2hiJ2ER.js7 KB—✓1st
https://www.typst.app/_astro/HomePage.astro_astro_type_script_index_0_lang.aVL5KTd5.js38 KB—✓1st
https://www.typst.app/_astro/HomePage.astro_astro_type_script_index_1_lang.B1g1mxWj.js1 KB—✓1st
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
98 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
47% of JavaScript execution is third-party
First-party Third-party 560ms · 3KB · €6/mo
Unattributable
Other
Costly
Execution 504ms
Transfer 0 KB
Monthly Cost €5/mo
misc-a.typst.app
Other
Optional
Execution 56ms
Transfer 3 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 504ms and costs ~€5/month

47% 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

Unattributable takes 504ms 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

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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