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https://omny.fm

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
96
GRADE
A
FIX
0
REVIEW
0
PASS
13
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.
92
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.

444 ms

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

778 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.

0.001

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

461 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.

778 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
15
13 PASS
A+
Page Weight Budget
362 KB transferred, 26 requests
PASS
362 KB transferred, 26 requests
Info::
Page weighs 1.1 MB (362 KB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.07 g CO2 per page load
362 KB / 2.4 MB budget
362 KB transferred
26 requests
0.07 g CO2 per page load
JavaScript 289.3 KiB 80%
Fonts 36.9 KiB 10%
Images 22.0 KiB 6%
HTML 6.6 KiB 2%
CSS 3.6 KiB 1%
Other 3.0 KiB 1%
Other 412 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
0% third-party, 0 ms blocking
PASS
0% third-party, 0 ms blocking
Info::
Third-party code accounts for 0% of page weight (412 B of 361.8 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
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+
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 22 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
153ms total JS execution
PASS
153ms total JS execution
Info::
https://omny.fm/_next/static/chunks/turbopack-11yo...: 97ms CPU time
Info::
Unattributable: 55ms CPU time
Info::
Third-party scripts: 55ms (36% of total)

Main Thread Breakdown

Script Evaluation 54% Other 20% Style & Layout 12% Script Parsing & Compilation 12%
ScriptTotalScriptingParse/CompileParty
https://omny.fm/_next/static/chunks/turbopack-11yob9tn5etaf.js97ms94ms0ms1st
Unattributable55ms2ms0ms3rd
A+
Font Loading
2 fonts (37 KB)
PASS
2 fonts (37 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

37 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 444 ms LCP 778 mshttps://omny.fm/_next/static/media/open-sans-latin-600-normal.0_eexel.ci.l..woff2open-sans-latin-600-nor... https://omny.fm/_next/static/media/open-sans-latin-600-normal.0_eexel.ci.l..woff2 — 18.4 KiB — 22 ms — font-display: swaphttps://omny.fm/_next/static/media/open-sans-latin-400-normal.0_lnrv79a2jvt.woff2open-sans-latin-400-nor... https://omny.fm/_next/static/media/open-sans-latin-400-normal.0_lnrv79a2jvt.woff2 — 18.4 KiB — 20 ms — font-display: swap
open-sans-latin-600-nor... woff2 swap
Size 18 KB
Load time 22 ms
Start 155 ms
Risk FOUT — text flashes from fallback to web font
open-sans-latin-400-nor... woff2 swap
Size 18 KB
Load time 20 ms
Start 157 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+
JS Bundles
17 scripts, 41 KB unused
PASS
17 scripts, 41 KB unused
Warning::
https://omny.fm/_next/static/chunks/0a1wlc2frir27....: 41 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 41 KB
41 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://omny.fm/_next/static/chunks/0a1wlc2frir27.js83 KB41 KB (50%)✓1st
https://omny.fm/_next/static/chunks/turbopack-11yob9tn5etaf.js5 KB—✓1st
https://omny.fm/_next/static/chunks/0uqkrj~erv-w~.js12 KB—✓1st
https://omny.fm/_next/static/chunks/0ydwk9x3f9zlr.js42 KB—✓1st
https://omny.fm/_next/static/chunks/0h21p0z8ri1v_.js19 KB—✓1st
https://omny.fm/_next/static/chunks/0o8q9emchvzhl.js28 KB—✓1st
https://omny.fm/_next/static/chunks/0zeu_34jdm7in.js15 KB—✓1st
https://omny.fm/_next/static/chunks/0yhgl3itmu7i1.js16 KB—✓1st
https://omny.fm/_next/static/chunks/0c9ng_szcb-72.js19 KB—✓1st
https://omny.fm/_next/static/chunks/0qtvnhrf385ag.js3 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

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+
Page Weight Inventory
26 resources · 362 KB · 41 KB savings available
PASS
26 resources · 362 KB · 41 KB savings available
Info::
Within 1MB page-weight target
Got: 362 KB
Info::
3 third-party resources (0% of weight)
26 resources · 361.8 KiB · 3 third-party Within 1MB page-weight target
JavaScript 80% · 289.3 KiB
Font 10% · 36.9 KiB
Image 7% · 25.0 KiB
Document 2% · 6.6 KiB
CSS 1% · 3.6 KiB
Other 0% · 412 B

~41.0 KiB of savings available

Remove unused JavaScript: 41.0 KiB
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

A+
HTTP Caching
max-age=15 (15 seconds)
PASS
max-age=15 (15 seconds)
Info::
Cache-Control header is set
Got: public, max-age=15
Info::
Effective TTL: 15 seconds (max-age=15)
Info::
ETag present — enables conditional (304) responses
Cache-Control

public, max-age=15

DirectiveValueMeaning
public—Any cache may store this response
max-age15Cache for 15 seconds
Effective TTL: 15 seconds
Network Waterfall
26 requests over 400ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 444 ms LCP 778 mshttps://omny.fm// https://omny.fm/ — 200 — 6.6 KiB — 88 ms — h3https://omny.fm/_next/static/chunks/0gslptd3t5hfh.css/_next/static/chunks/0gslptd3t5hfh.... https://omny.fm/_next/static/chunks/0gslptd3t5hfh.css — 200 — 3.6 KiB — 24 ms — h3https://omny.fm/_next/static/chunks/04u-nhasvrvgm.js/_next/static/chunks/04u-nhasvrvgm.... https://omny.fm/_next/static/chunks/04u-nhasvrvgm.js — 200 — 11.8 KiB — 25 ms — h3https://omny.fm/_next/static/chunks/0h21p0z8ri1v_.js/_next/static/chunks/0h21p0z8ri1v_.... https://omny.fm/_next/static/chunks/0h21p0z8ri1v_.js — 200 — 19.0 KiB — 54 ms — h3https://omny.fm/_next/static/chunks/0yhgl3itmu7i1.js/_next/static/chunks/0yhgl3itmu7i1.... https://omny.fm/_next/static/chunks/0yhgl3itmu7i1.js — 200 — 15.7 KiB — 51 ms — h3https://omny.fm/_next/static/chunks/0ydwk9x3f9zlr.js/_next/static/chunks/0ydwk9x3f9zlr.... https://omny.fm/_next/static/chunks/0ydwk9x3f9zlr.js — 200 — 42.0 KiB — 61 ms — h3https://omny.fm/_next/static/chunks/0a1wlc2frir27.js/_next/static/chunks/0a1wlc2frir27.... https://omny.fm/_next/static/chunks/0a1wlc2frir27.js — 200 — 83.0 KiB — 65 ms — h3https://omny.fm/_next/static/chunks/0o8q9emchvzhl.js/_next/static/chunks/0o8q9emchvzhl.... https://omny.fm/_next/static/chunks/0o8q9emchvzhl.js — 200 — 27.9 KiB — 61 ms — h3https://omny.fm/_next/static/chunks/0zeu_34jdm7in.js/_next/static/chunks/0zeu_34jdm7in.... https://omny.fm/_next/static/chunks/0zeu_34jdm7in.js — 200 — 14.7 KiB — 55 ms — h3https://omny.fm/_next/static/chunks/0c9ng_szcb-72.js/_next/static/chunks/0c9ng_szcb-72.... https://omny.fm/_next/static/chunks/0c9ng_szcb-72.js — 200 — 18.5 KiB — 54 ms — h3https://omny.fm/_next/static/chunks/turbopack-11yob9tn5etaf.js/_next/static/chunks/turbopack-11yo... https://omny.fm/_next/static/chunks/turbopack-11yob9tn5etaf.js — 200 — 4.6 KiB — 45 ms — h3https://omny.fm/_next/static/chunks/0qtvnhrf385ag.js/_next/static/chunks/0qtvnhrf385ag.... https://omny.fm/_next/static/chunks/0qtvnhrf385ag.js — 200 — 3.3 KiB — 44 ms — h3https://omny.fm/_next/static/chunks/0uqkrj~erv-w~.js/_next/static/chunks/0uqkrj~erv-w~.... https://omny.fm/_next/static/chunks/0uqkrj~erv-w~.js — 200 — 11.8 KiB — 54 ms — h3https://omny.fm/_next/static/chunks/0ko5afc~v5.he.js/_next/static/chunks/0ko5afc~v5.he.... https://omny.fm/_next/static/chunks/0ko5afc~v5.he.js — 200 — 11.7 KiB — 54 ms — h3https://omny.fm/_next/static/chunks/04ez5bz9p8g9m.js/_next/static/chunks/04ez5bz9p8g9m.... https://omny.fm/_next/static/chunks/04ez5bz9p8g9m.js — 200 — 18.9 KiB — 61 ms — h3https://omny.fm/_next/static/chunks/turbopack-0b6m.i2g94yfp.js/_next/static/chunks/turbopack-0b6m... https://omny.fm/_next/static/chunks/turbopack-0b6m.i2g94yfp.js — 200 — 4.6 KiB — 59 ms — h3https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_buildManifest.js/_next/static/R-BtI69VyfamG7Y4LEo1i... https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_buildManifest.js — 200 — 1.1 KiB — 43 ms — h3https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_ssgManifest.js/_next/static/R-BtI69VyfamG7Y4LEo1i... https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_ssgManifest.js — 200 — 306 B — 43 ms — h3https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_clientMiddlewareManifest.js/_next/static/R-BtI69VyfamG7Y4LEo1i... https://omny.fm/_next/static/R-BtI69VyfamG7Y4LEo1i/_clientMiddlewareManifest.js — 200 — 311 B — 43 ms — h3https://omny.fm/_next/static/media/splash-background.079_i_r2o70t0.svg/_next/static/media/splash-backgrou... https://omny.fm/_next/static/media/splash-background.079_i_r2o70t0.svg — 200 — 22.0 KiB — 54 ms — h3https://omny.fm/_next/static/media/open-sans-latin-600-normal.0_eexel.ci.l..woff2/_next/static/media/open-sans-latin... https://omny.fm/_next/static/media/open-sans-latin-600-normal.0_eexel.ci.l..woff2 — 200 — 18.4 KiB — 22 ms — h3https://omny.fm/_next/static/media/open-sans-latin-400-normal.0_lnrv79a2jvt.woff2/_next/static/media/open-sans-latin... https://omny.fm/_next/static/media/open-sans-latin-400-normal.0_lnrv79a2jvt.woff2 — 200 — 18.4 KiB — 20 ms — h3https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0o479328.ingest.sentry.io/api/614920... https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0 — 200 — 300 B — 35 ms — h2https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0o479328.ingest.sentry.io/api/614920... https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0 — 200 — 56 B — 13 ms — h2https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0o479328.ingest.sentry.io/api/614920... https://o479328.ingest.sentry.io/api/6149200/envelope/?sentry_version=7&sentry_key=26e057be21a84efb8189b730ef099727&sentry_client=sentry.javascript.nextjs%2F10.47.0 — 200 — 56 B — 12 ms — h2https://omny.fm/_next/static/media/favicon-144x144.0eafiy7-pg_b1.png/_next/static/media/favicon-144x144... https://omny.fm/_next/static/media/favicon-144x144.0eafiy7-pg_b1.png — 200 — 3.0 KiB — 11 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
36% of JavaScript execution is third-party
First-party Third-party 55ms · 0KB · $1/mo
Unattributable
Other
Optional
Execution 55ms
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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