Performance
· 15 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.
1.50 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.70 s
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.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.77 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.
2.76 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 sDPage Weight BudgetAction2.3 MB transferred, 96 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction19 scripts, 200 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://js.hsforms.net/forms/embed/v2.js | 193 KB | 113 KB (61%) | ✓ | 3rd |
| https://www.smore.com/wp-content/themes/smore/assets/build/scripts.min.js?v=1776246257&ver=1776246257 | 127 KB | 87 KB (69%) | ✗ | 3rd |
| https://www.smore.com/wp-content/plugins/anchor-block/public/anchor-block.js?ver=1731652630 | 0 KB | — | ✓ | 3rd |
| https://dev.visualwebsiteoptimizer.com/cdn/edrv/worker-57f1b8d94a5f9167e9bcdcf861046428.br.js | 72 KB | — | ✓ | 3rd |
| https://www.smore.com/wp-content/themes/smore/assets/build/vendors/slick.min.js?ver=1.0.0 | 12 KB | — | ✓ | 3rd |
| https://dev.visualwebsiteoptimizer.com/j.php?a=928048&u=https%3A%2F%2Fwww.smore.com%2F&vn=2.2&ph=1&p=web&st=436.80000019073486&x=true | 8 KB | — | ✓ | 3rd |
| https://www.smore.com/wp-includes/js/imagesloaded.min.js?ver=5.0.0 | 2 KB | — | ✓ | 3rd |
| https://www.smore.com/wp-includes/js/masonry.min.js?ver=4.2.2 | 8 KB | — | ✓ | 3rd |
| https://cdn-cookieyes.com/client_data/badc9b8b53bd446c9542b34e/script.js | 10 KB | — | ✓ | 3rd |
| https://www.smore.com/wp-content/plugins/genesis-blocks/dist/assets/js/dismiss.js?ver=1765377389 | 1 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
DPage Weight InventoryAction96 resources · 2.3 MB · 200 KB savings availableFIX
~200.2 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 96 resources | 2.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction51 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
BJS Execution Cost918ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.smore.com/ | 582ms | 78ms | 26ms | 3rd |
| Unattributable | 119ms | 5ms | 0ms | 3rd |
| https://www.smore.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 110ms | 72ms | 2ms | 3rd |
| https://www.smore.com/wp-content/themes/smore/assets/build/scripts.min.js?v=1776246257&ver=1776246257 | 106ms | 19ms | 10ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading5 fonts (260 KB)PASS
Web fonts
5
260 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
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
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall96 requests over 3244msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.smore.com www.smore.com | Other | 582ms | 30 KB | — | €9/mo | Costly |
Unattributable Unattributable | Other | 119ms | 0 KB | — | €2/mo | Optional |
www.smore.com www.smore.com | Other | 110ms | 31 KB | — | €2/mo | Optional |
www.smore.com www.smore.com | Other | 106ms | 127 KB | 69% | €2/mo | Optional |
These scripts may cost more than they're worth
- www.smore.com adds 582ms and costs ~€9/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
www.smore.com takes 582ms 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 www.smore.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