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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
7
PASS
14
INFO
3

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

Mobile Desktop
52
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.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
91
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.

5.72 s

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

8.95 s

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

357 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.

5.72 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.

8.95 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
26
14 PASS 7 REVIEW 2 FIX
D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (1.1 MiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
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.

B
Page Weight Budget
1.1 MB transferred, 20 requests
REVIEW
1.1 MB transferred, 20 requests
Info::
Page weighs 3.3 MB (1.1 MB transferred)
Warning::
JavaScript is 530 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 530 KB
Info::
20 HTTP requests
Info::
Estimated 0.24 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
20 requests
0.24 g CO2 per page load
JavaScript 529.8 KiB 46%
Images 473.6 KiB 41%
CSS 67.4 KiB 6%
Fonts 67.1 KiB 6%
HTML 10.6 KiB 1%
Other 1.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget

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

B
JS Execution Cost
861ms total JS execution
REVIEW
861ms total JS execution
Warning::
https://static-production.npmjs.com/commons.208358...: 307ms CPU time
Info::
https://static-production.npmjs.com/homepage/homep...: 244ms CPU time
Info::
https://www.npmjs.com/: 171ms CPU time
Info::
Unattributable: 138ms CPU time
Warning::
Third-party scripts: 690ms (80% of total)

Main Thread Breakdown

Script Evaluation 40% Script Parsing & Compilation 20% Other 20% Style & Layout 15% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://static-production.npmjs.com/commons.2083584930bec1034fbb.js307ms136ms146ms3rd
https://static-production.npmjs.com/homepage/homepage.65646a10e9b9f30f0144.js244ms216ms28ms3rd
https://www.npmjs.com/171ms8ms4ms1st
Unattributable138ms5ms0ms3rd
C
JS Bundles
Action
3 scripts, 288 KB unused
REVIEW
3 scripts, 288 KB unused
Warning::
https://static-production.npmjs.com/commons.208358...: 288 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 288 KB
288 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static-production.npmjs.com/commons.2083584930bec1034fbb.js401 KB288 KB (73%)✓3rd
https://static-production.npmjs.com/minicssextractbug.0d7bf3add7c69b7bace4.js21 KB—✓3rd
https://static-production.npmjs.com/homepage/homepage.65646a10e9b9f30f0144.js107 KB—✓3rd

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

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
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.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
B
Page Weight Inventory
20 resources · 1.1 MB · 288 KB savings available
REVIEW
20 resources · 1.1 MB · 288 KB savings available
Warning::
Page weight 1.1 MB exceeds 1 MB target by 126 KB
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~288 KB of savings available
Warning::
19 third-party resources (99% of weight)
Info::
2 resources over 200KB
20 resources · 1.1 MiB · 19 third-party 125.6 KiB over 1MB target
JavaScript 46% · 529.8 KiB
Image 41% · 474.6 KiB
CSS 6% · 67.4 KiB
Font 6% · 67.1 KiB
Document 1% · 10.6 KiB

~287.8 KiB of savings available

Remove unused JavaScript: 287.8 KiB
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
Image Optimization
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Warning::
https://static-production.npmjs.com/attachments/ck... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 474 KB
0 oversized -0 KB
2 legacy format
1 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

A+
Font Loading
7 fonts (67 KB)
PASS
7 fonts (67 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

67 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 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.7 s LCP 9.0 shttps://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff26xK3dSBYKcSV-LCoeQqfX1R... https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2 — 14.5 KiB — 47 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLGT9Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2 — 7.6 KiB — 52 ms — font-display: swaphttps://fonts.gstatic.com/s/firamono/v16/N0bX2SlFPv1weGeLZDtgJv7Ss9XZYQ.woff2N0bX2SlFPv1weGeLZDtgJv7... https://fonts.gstatic.com/s/firamono/v16/N0bX2SlFPv1weGeLZDtgJv7Ss9XZYQ.woff2 — 10.5 KiB — 61 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLCz7Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2 — 7.7 KiB — 82 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLEj6Z1x... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2 — 7.8 KiB — 76 ms — font-display: swaphttps://fonts.gstatic.com/s/arimo/v35/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrBdwEoaQ.woff2P5sfzZCDf9_T_3cV7NCUECy... https://fonts.gstatic.com/s/arimo/v35/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrBdwEoaQ.woff2 — 11.2 KiB — 70 ms — font-display: swaphttps://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2pxiEyp8kv8JHgFVrJJfecnF... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 7.7 KiB — 45 ms — font-display: swap
6xK3dSBYKcSV-LCoeQqfX1R... woff2 swap
Size 15 KB
Load time 47 ms
Start 432 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLGT9Z1x... woff2 swap
Size 8 KB
Load time 52 ms
Start 433 ms
Risk FOUT — text flashes from fallback to web font
N0bX2SlFPv1weGeLZDtgJv7... woff2 swap
Size 11 KB
Load time 61 ms
Start 433 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLCz7Z1x... woff2 swap
Size 8 KB
Load time 82 ms
Start 433 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLEj6Z1x... woff2 swap
Size 8 KB
Load time 76 ms
Start 433 ms
Risk FOUT — text flashes from fallback to web font
P5sfzZCDf9_T_3cV7NCUECy... woff2 swap
Size 11 KB
Load time 70 ms
Start 434 ms
Risk FOUT — text flashes from fallback to web font
pxiEyp8kv8JHgFVrJJfecnF... woff2 swap
Size 8 KB
Load time 45 ms
Start 434 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+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server-Timing Observability
1 Server-Timing entries advertised
PASS
1 Server-Timing entries advertised
Info::
Server-Timing header advertises 1 timing entries
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
1 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.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
20 requests over 1322ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 5.7 s LCP 9.0 shttps://www.npmjs.com// https://www.npmjs.com/ — 200 — 10.6 KiB — 83 ms — h2https://static-production.npmjs.com/styles.695cb6ea21c7905290ab.cssstatic-production.npmjs.com/styles.... https://static-production.npmjs.com/styles.695cb6ea21c7905290ab.css — 200 — 64.0 KiB — 83 ms — h2https://static-production.npmjs.com/attachments/ck3uwed1cmso79y74pjugy10f-gak-2x.pngstatic-production.npmjs.com/attachm... https://static-production.npmjs.com/attachments/ck3uwed1cmso79y74pjugy10f-gak-2x.png — 200 — 44.7 KiB — 64 ms — h2https://fonts.googleapis.com/css?family=Arimo|Poppins:400,600,700&display=swapfonts.googleapis.com/css?family=Ari... https://fonts.googleapis.com/css?family=Arimo|Poppins:400,600,700&display=swap — 200 — 1.3 KiB — 165 ms — h2https://static-production.npmjs.com/commons.2083584930bec1034fbb.jsstatic-production.npmjs.com/commons... https://static-production.npmjs.com/commons.2083584930bec1034fbb.js — 200 — 401.5 KiB — 182 ms — h2https://static-production.npmjs.com/minicssextractbug.0d7bf3add7c69b7bace4.jsstatic-production.npmjs.com/minicss... https://static-production.npmjs.com/minicssextractbug.0d7bf3add7c69b7bace4.js — 200 — 21.1 KiB — 102 ms — h2https://static-production.npmjs.com/homepage/homepage.65646a10e9b9f30f0144.jsstatic-production.npmjs.com/homepag... https://static-production.npmjs.com/homepage/homepage.65646a10e9b9f30f0144.js — 200 — 107.2 KiB — 129 ms — h2https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600fonts.googleapis.com/css?family=Sou... https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,600 — 200 — 869 B — 88 ms — h2https://fonts.googleapis.com/css?family=Fira+Monofonts.googleapis.com/css?family=Fir... https://fonts.googleapis.com/css?family=Fira+Mono — 200 — 688 B — 96 ms — h2https://fonts.googleapis.com/css?family=Poppins:400,500,600fonts.googleapis.com/css?family=Pop... https://fonts.googleapis.com/css?family=Poppins:400,500,600 — 200 — 621 B — 83 ms — h2https://static-production.npmjs.com/abf53a31b2da4657a1a004ee9358551c.pngstatic-production.npmjs.com/abf53a3... https://static-production.npmjs.com/abf53a31b2da4657a1a004ee9358551c.png — 200 — 428.9 KiB — 72 ms — h2https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2fonts.gstatic.com/s/sourcesanspro/v... https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7lujVj9w.woff2 — 200 — 14.5 KiB — 47 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2 — 200 — 7.6 KiB — 52 ms — h3https://fonts.gstatic.com/s/firamono/v16/N0bX2SlFPv1weGeLZDtgJv7Ss9XZYQ.woff2fonts.gstatic.com/s/firamono/v16/N0... https://fonts.gstatic.com/s/firamono/v16/N0bX2SlFPv1weGeLZDtgJv7Ss9XZYQ.woff2 — 200 — 10.5 KiB — 61 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLCz7Z1xlFd2JQEk.woff2 — 200 — 7.7 KiB — 82 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLEj6Z1xlFd2JQEk.woff2 — 200 — 7.8 KiB — 76 ms — h3https://fonts.gstatic.com/s/arimo/v35/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrBdwEoaQ.woff2fonts.gstatic.com/s/arimo/v35/P5sfz... https://fonts.gstatic.com/s/arimo/v35/P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrBdwEoaQ.woff2 — 200 — 11.2 KiB — 70 ms — h3https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2fonts.gstatic.com/s/poppins/v24/pxi... https://fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 200 — 7.7 KiB — 45 ms — h3https://static-production.npmjs.com/f1c1c1c0922247b9630c1edb1e6f31b2.pngstatic-production.npmjs.com/f1c1c1c... https://static-production.npmjs.com/f1c1c1c0922247b9630c1edb1e6f31b2.png — 200 — 449 B — 26 ms — h2https://static-production.npmjs.com/b0f1a8318363185cc2ea6a40ac23eeb2.pngstatic-production.npmjs.com/b0f1a83... https://static-production.npmjs.com/b0f1a8318363185cc2ea6a40ac23eeb2.png — 200 — 604 B — 29 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
80% of JavaScript execution is third-party
First-party Third-party 690ms · 509KB · $9/mo
static-production.npmjs.com
Other
Costly
Execution 307ms
Transfer 401 KB
Unused 73%
Monthly Cost $4/mo
static-production.npmjs.com
Other
Costly
Execution 244ms
Transfer 107 KB
Monthly Cost $3/mo
Unattributable
Other
Optional
Execution 138ms
Transfer 0 KB
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • static-production.npmjs.com adds 307ms and costs ~$4/month
  • static-production.npmjs.com adds 244ms and costs ~$3/month

80% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

static-production.npmjs.com takes 307ms 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

73% of static-production.npmjs.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

static-production.npmjs.com takes 244ms 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

Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-04-11 — 2026-05-08)

LCP (p75)

1475 ms

90% good

INP (p75)

49 ms

97% good

CLS (p75)

0.010

91% good

FCP (p75)

1331 ms

TTFB (p75)

896 ms

This origin passes Core Web Vitals assessment
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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