https://vercel.com
Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
83
GRADE
B
FIX
4
REVIEW
6
PASS
13
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
26
95
92
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
5.34 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
15.83 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
113.24 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.
33.68 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.
125.48 s
Page Load Progression
1.2 s
2.5 s
3.7 s
4.9 s
6.1 s
7.4 s
8.6 s
9.8 sChecks
2613 PASS 6 REVIEW 4 FIX
DPage Weight BudgetAction2.1 MB transferred, 126 requestsFIX
Page Weight Budget
Action2.1 MB transferred, 126 requests
2.1 MB transferred, 126 requests
Info::
Page weighs 6.8 MB (2.1 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 223 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 223 KB
Warning::
126 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.45 g CO2 per page load
2.1 MB transferred
126 requests
0.45 g CO2 per page load
JavaScript 1.3 MiB 60%
Fonts 222.5 KiB 10%
Images 199.4 KiB 9%
CSS 162.6 KiB 7%
Other 142.5 KiB 7%
Other 77.0 KiB 4%
HTML 55.0 KiB 3%
Other 2.5 KiB 0%
Other 2.4 KiB 0%
Other 2.3 KiB 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
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
FJS Execution CostAction177620ms total JS executionFIX
JS Execution Cost
Action177620ms total JS execution
177620ms total JS execution
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 158092ms CPU time
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 17196ms CPU time
Warning::
https://vercel.com/: 703ms CPU time
Warning::
Unattributable: 578ms CPU time
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 309ms CPU time
Main Thread Breakdown
Other 98%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/2qqcif84blu9i.js | 158092ms | 214ms | 12ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/3o1v4ozkh2vxu.js | 17196ms | 1342ms | 22ms | 1st |
| https://vercel.com/ | 703ms | 23ms | 38ms | 1st |
| Unattributable | 578ms | 43ms | 0ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/2emxcxhs3t4op.js | 309ms | 5ms | 3ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/3d2sg--d9913g.js | 206ms | 202ms | 3ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/1ugwoo39tjkxj.js | 189ms | 119ms | 24ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/0rgjgvus0h5gh.js | 141ms | 136ms | 3ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/0ydi1w5lbtxux.js | 103ms | 71ms | 10ms | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/3hmwmtd8fel46.js | 52ms | 2ms | 50ms | 1st |
Showing top 10 of 11 scripts
FJS BundlesAction78 scripts, 556 KB unusedFIX
JS Bundles
Action78 scripts, 556 KB unused
78 scripts, 556 KB unused
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 175 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 82 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 48 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 34 KB unused (99%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://vercel.com/vc-ap-vercel-marketing/_next/st...: 33 KB unused (99%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 556 KB
556 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/3hmwmtd8fel46.js | 176 KB | 175 KB (100%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/106sclgofl636.js | 83 KB | 82 KB (100%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/0-1uj2_uipf11.js | 49 KB | 48 KB (100%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/0lsve1uiodpc0.js | 34 KB | 34 KB (99%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/3boenmobjobhu.js | 33 KB | 33 KB (99%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/1viruv6umpdhf.js | 32 KB | 31 KB (99%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/0pwtn_72go4x5.js | 30 KB | 29 KB (99%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/2qqcif84blu9i.js | 48 KB | 28 KB (59%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/1ugwoo39tjkxj.js | 62 KB | 27 KB (44%) | ✓ | 1st |
| https://vercel.com/vc-ap-vercel-marketing/_next/static/immutable/chunks/1x8u4ev1z_seg.js | 27 KB | 27 KB (99%) | ✓ | 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
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
DPage Weight InventoryAction126 resources · 2.1 MB · 556 KB savings availableFIX
Page Weight Inventory
Action126 resources · 2.1 MB · 556 KB savings available
126 resources · 2.1 MB · 556 KB savings available
Warning::
Page weight 2.1 MB exceeds 1 MB target by 1.1 MB
Got: 2.1 MB Expected: ≤ 1 MB
Info::
~556 KB of savings available
Info::
6 third-party resources (4% of weight)
126 resources · 2.1 MiB · 6 third-party 1.1 MiB over 1MB target
JavaScript 60% · 1.3 MiB
Font 10% · 222.5 KiB
Image 9% · 201.6 KiB
CSS 7% · 162.6 KiB
Other 7% · 147.4 KiB
Document 6% · 132.0 KiB
~556.2 KiB of savings available
Remove unused JavaScript: 556.2 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 126 resources | 2.1 MiB | ||||||
BImage Optimization8 images, 0 KB saveableREVIEW
Image Optimization
8 images, 0 KB saveable
8 images, 0 KB saveable
Info::
All images are well-optimized
8 images 199 KB
0 oversized -0 KB
5 legacy format
0 missing dimensions CLS risk
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
2 JS blocking issue(s) detected
2 JS blocking issue(s) detected
Warning::
3 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
Total JS execution time is 177.6 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
BHTTP Cachingpublic, max-age=0, must-revalidateREVIEW
HTTP Caching
public, max-age=0, must-revalidate
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control
public, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
A+Third-Party Impact4% third-party, 0 ms blockingPASS
Third-Party Impact
4% third-party, 0 ms blocking
4% third-party, 0 ms blocking
Info::
Third-party code accounts for 4% of page weight (81.0 KiB of 2.1 MiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Font Loading7 fonts (223 KB)PASS
Font Loading
7 fonts (223 KB)
7 fonts (223 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
223 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
797e433ab948586e.p.1v5b... woff2 swap
Size 23 KB
Load time 36 ms
Start 180 ms
Risk FOUT — text flashes from fallback to web font
Geist_Variable-s.p.2v-c... woff2 swap
Size 68 KB
Load time 46 ms
Start 180 ms
Risk FOUT — text flashes from fallback to web font
GeistPixel_Circle.p.2p5... woff2 swap
Size 28 KB
Load time 40 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
GeistPixel_Grid.p.0c5uz... woff2 swap
Size 28 KB
Load time 34 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
GeistPixel_Line.p.3lxdd... woff2 swap
Size 18 KB
Load time 48 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
GeistPixel_Square.p.3ig... woff2 swap
Size 28 KB
Load time 38 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
GeistPixel_Triangle.p.0... woff2 swap
Size 29 KB
Load time 35 ms
Start 1.5 s
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 CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource Hints7 hints, 0 missing preconnectsPASS
Resource Hints
7 hints, 0 missing preconnects
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)
Current Resource Hints
preconnect—
preload 7
dns-prefetch—
prefetch—
7 resource hints configured
A+Compression AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, must-revalidate
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: rsc, next-router-state-tree, next-router-prefetch, next-router-segment-prefetch
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`ETag` present -- conditional GET supported
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
CSS Performance Depth
1 CSS depth issue(s) detected
1 CSS depth issue(s) detected
Warning::
4 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Network Waterfall126 requests over 17467msINFO
Network Waterfall
126 requests over 17467ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-29 — 2026-08-25)
LCP (p75)
1443 ms
89% good
INP (p75)
154 ms
80% good
CLS (p75)
0.000
98% good
FCP (p75)
1336 ms
TTFB (p75)
670 ms
This origin passes Core Web Vitals assessment
Image Optimization17 images, 1 KB total, 0 KB wastedINFO
Image Optimization
17 images, 1 KB total, 0 KB wasted
Image Optimization Audit
Total Images
17
Total Size
1 KB
5 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.