Performance
· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
9.82 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
11.32 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
456 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.
9.82 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.
11.68 s
Page Load Progression
DThird-Party ImpactAction96% third-party, 0 ms blockingFIX
FJS Execution CostAction5591ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://github.com/abidullahafridi/Automation-Engine | 1778ms | 12ms | 1ms | 1st |
| Unattributable | 1121ms | 109ms | 0ms | 1st |
| https://github.githubassets.com/assets/scheduler-58b860b049ca307c.js | 817ms | 787ms | 0ms | 3rd |
| https://github.githubassets.com/assets/github-elements-b70cd1d9c3b708a4.js | 776ms | 763ms | 0ms | 3rd |
| https://github.githubassets.com/assets/catalyst-5bc36fa5a846f5a0.js | 346ms | 205ms | 0ms | 3rd |
| https://github.githubassets.com/assets/6n-e6e586acca87c769.js | 291ms | 7ms | 0ms | 3rd |
| https://github.githubassets.com/assets/react-dom-client-35b308126995de85.js | 272ms | 253ms | 0ms | 3rd |
| https://github.githubassets.com/assets/react-core-64258d9ba65c8c5a.js | 124ms | 29ms | 0ms | 3rd |
| https://github.githubassets.com/assets/primer-react-css.dc074e1b2708fdd8.module.css | 67ms | 0ms | 0ms | 3rd |
DJS BundlesAction132 scripts, 470 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://github.githubassets.com/assets/code-view-0af8ff956dedf23a.js | 268 KB | 205 KB (77%) | ✓ | 3rd |
| https://github.githubassets.com/assets/primer-react-911369ee234690ef.js | 126 KB | 91 KB (73%) | ✓ | 3rd |
| https://github.githubassets.com/assets/behaviors-2f47a368080effa7.js | 64 KB | 53 KB (82%) | ✓ | 3rd |
| https://github.githubassets.com/assets/react-core-64258d9ba65c8c5a.js | 83 KB | 52 KB (62%) | ✓ | 3rd |
| https://github.githubassets.com/assets/qz-bc8ee8395fbadf86.js | 49 KB | 24 KB (50%) | ✓ | 3rd |
| https://github.githubassets.com/assets/jvc-172b2b204ed5e8d3.js | 33 KB | 23 KB (71%) | ✓ | 3rd |
| https://github.githubassets.com/assets/wc-9718c61e184d7417.js | 27 KB | 22 KB (82%) | ✓ | 3rd |
| https://github.githubassets.com/assets/20-c4fa69654eec9c7a.js | 8 KB | — | ✓ | 3rd |
| https://github.githubassets.com/assets/fn-a24b6dda102e437d.js | 12 KB | — | ✓ | 3rd |
| https://github.githubassets.com/assets/react-dom-client-35b308126995de85.js | 59 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction174 resources · 1.9 MB · 470 KB savings availableFIX
~469.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 174 resources | 1.9 MiB | ||||||
CPage Weight BudgetAction1.9 MB transferred, 174 requestsREVIEW
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingmax-age=0, private, must-revalidateREVIEW
max-age=0, private, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| max-age | 0 | Cache for 0 seconds |
| private | — | Only browser cache, not CDN/proxy |
| must-revalidate | — | Must recheck with server after expiry |
A+Text CompressionAll text resources are compressedPASS
AImage Optimization3 images, 0 KB saveablePASS
A+Font LoadingNo web fonts (system fonts)PASS
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
AResource Hints7 hints, 0 missing preconnectsPASS
Current Resource Hints
7 resource hints configured
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://github.githubassets.com, https://avatars.githubusercontent.com. Remove the redundant dns-prefetch entries.
Performance issues directly impact user engagement and conversion rates.
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://github.githubassets.com (dns-prefetch+preconnect), https://avatars.githubusercontent.com (dns-prefetch+preconnect).
Performance issues directly impact user engagement and conversion rates.
A+Asset CompressionAll 1 asset host use brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
AJavaScript Blocking1 JS blocking issue(s) detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall174 requests over 2222msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
github.githubassets.com github.githubassets.com | Other | 817ms | 2 KB | — | $11/mo | Costly |
github.githubassets.com github.githubassets.com | Other | 776ms | 3 KB | — | $10/mo | Costly |
github.githubassets.com github.githubassets.com | Other | 346ms | 2 KB | — | $5/mo | Costly |
github.githubassets.com github.githubassets.com | Other | 291ms | 18 KB | — | $4/mo | Costly |
github.githubassets.com github.githubassets.com | Other | 272ms | 59 KB | — | $4/mo | Costly |
github.githubassets.com github.githubassets.com | Other | 124ms | 83 KB | 62% | $2/mo | Optional |
github.githubassets.com github.githubassets.com | Other | 67ms | 35 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- github.githubassets.com adds 817ms and costs ~$11/month
- github.githubassets.com adds 776ms and costs ~$10/month
- github.githubassets.com adds 346ms and costs ~$5/month
- github.githubassets.com adds 291ms and costs ~$4/month
- github.githubassets.com adds 272ms and costs ~$4/month
48% of JavaScript execution time comes from third-party scripts.
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
github.githubassets.com takes 817ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
github.githubassets.com takes 776ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
github.githubassets.com takes 346ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
github.githubassets.com takes 291ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
github.githubassets.com takes 272ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
62% of github.githubassets.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-27 — 2026-10-24)
LCP (p75)
1856 ms
86% good
INP (p75)
87 ms
91% good
CLS (p75)
0.050
86% good
FCP (p75)
1670 ms
TTFB (p75)
1172 ms
Image Optimization3 images, 9 KB total, 9 KB wastedINFO
Image Optimization Audit
Total Images
3
Total Size
9 KB
Oversized
3
Wasted
9 KB