Performance
· 26 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.
3.73 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.86 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
174 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.
5.10 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.
6.87 s
Page Load Progression
DHTTP CachingActionno-store (uncacheable)FIX
no-store, no-cache, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
BThird-Party Impact51% third-party, 0 ms blockingREVIEW
CImage OptimizationAction10 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
BJS Execution Cost921ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-5RKNGD3DXD | 235ms | 188ms | 46ms | 3rd |
| https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js | 186ms | 36ms | 7ms | 3rd |
| Unattributable | 174ms | 6ms | 0ms | 1st |
| https://worthmysite.org/ | 150ms | 6ms | 3ms | 1st |
| https://code.jquery.com/jquery-1.10.2.min.js | 121ms | 87ms | 7ms | 3rd |
| https://www.google-analytics.com/analytics.js | 53ms | 44ms | 4ms | 3rd |
BJS Bundles12 scripts, 112 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-5RKNGD3DXD | 152 KB | 66 KB (44%) | ✓ | 3rd |
| https://cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js | 28 KB | 23 KB (88%) | ✓ | 3rd |
| https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js | 33 KB | 22 KB (69%) | ✓ | 3rd |
| https://code.jquery.com/jquery-1.10.2.min.js | 32 KB | — | ✓ | 3rd |
| https://netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js | 8 KB | — | ✓ | 3rd |
| https://worthmysite.org/theme/default/js/bootstrap.min.js | 7 KB | — | ✓ | 1st |
| https://worthmysite.org/theme/default/js/plugins/morris/morris.min.js | 10 KB | — | ✓ | 1st |
| https://worthmysite.org/theme/default/js/plugins/jvectormap/jquery-jvectormap-1.2.2.min.js | 9 KB | — | ✓ | 1st |
| https://worthmysite.org/theme/default/js/plugins/jvectormap/jquery-jvectormap-world-mill-en.js | 50 KB | — | ✓ | 1st |
| https://worthmysite.org/theme/default/js/plugins/jqueryKnob/jquery.knob.js | 6 KB | — | ✗ | 1st |
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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BJavaScript Blocking1 JS blocking issue(s) detectedREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Page Weight Budget603 KB transferred, 39 requestsPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (111 KB)PASS
Web fonts
3
111 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
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 ~25 KB and ~50 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
APage Weight Inventory39 resources · 603 KB · 112 KB savings availablePASS
~111.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 39 resources | 603.1 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
ACSS Performance Depth1 CSS depth issue(s) detectedPASS
Network Waterfall39 requests over 837msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 235ms | 152 KB | 44% | €3/mo | Costly |
ajax.googleapis.com ajax.googleapis.com | Other | 186ms | 33 KB | 69% | €2/mo | Optional |
code.jquery.com code.jquery.com | Other | 121ms | 32 KB | — | €1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 53ms | 21 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 235ms and costs ~€3/month
65% 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
Google Tag Manager takes 235ms 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
69% of ajax.googleapis.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
Image Optimization12 images, 94 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
12
Total Size
94 KB