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.
1.10 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.43 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
112 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.
1.26 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.
2.62 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DPage Weight InventoryAction98 resources · 1.5 MB · 234 KB savings availableFIX
~234.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 98 resources | 1.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.5 MB transferred, 98 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
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
CImage OptimizationAction37 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
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
CJS Execution CostAction1718ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.socialmediatoday.com/ | 510ms | 177ms | 21ms | 3rd |
| https://cmp.osano.com/AzqdtLT8Mqkut2TZ/991974d1-3bca-4b6d-93e4-fc7f0c35945c/osano.js | 336ms | 295ms | 8ms | 3rd |
| Unattributable | 318ms | 34ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-55G8WRR | 216ms | 158ms | 20ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-065JKX6TVJ&cx=c>m=4e64h1 | 156ms | 132ms | 21ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WDNJ7JK>m=4e64h1 | 132ms | 107ms | 22ms | 3rd |
| https://www.socialmediatoday.com/static/js/htmx_204.min.js?313321260226 | 51ms | 41ms | 2ms | 3rd |
CJS BundlesAction41 scripts, 234 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-065JKX6TVJ&cx=c>m=4e64h1 | 169 KB | 66 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WDNJ7JK>m=4e64h1 | 140 KB | 63 KB (45%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-55G8WRR | 146 KB | 52 KB (35%) | ✓ | 3rd |
| https://ak.sail-horizon.com/spm/spm.v1.min.js | 48 KB | 32 KB (68%) | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/jquery_360.min.js?313321260226 | 35 KB | 22 KB (62%) | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/dist/navSignupHelper.bundle.js?360116090426 | 1 KB | — | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/mailcheck.min.js?192616240919 | 1 KB | — | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/dist/onBoardDiagnostics.bundle.js?360116090426 | 2 KB | — | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/dist/engAnalytics.bundle.js?360116090426 | 1 KB | — | ✓ | 3rd |
| https://www.socialmediatoday.com/static/js/dist/prestitialForecastingMode.bundle.js?360116090426 | 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
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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (255 KB)PASS
Web fonts
6
255 KB total
Render-blocking
0
of 6
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
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall98 requests over 3249msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.socialmediatoday.com www.socialmediatoday.com | Other | 510ms | 58 KB | — | €6/mo | Costly |
cmp.osano.com cmp.osano.com | Other | 336ms | 54 KB | — | €4/mo | Costly |
Unattributable Unattributable | Other | 318ms | 0 KB | — | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 216ms | 146 KB | 35% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 156ms | 169 KB | 39% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 132ms | 140 KB | 45% | €1/mo | Optional |
www.socialmediatoday.com www.socialmediatoday.com | Other | 51ms | 16 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.socialmediatoday.com adds 510ms and costs ~€6/month
- cmp.osano.com adds 336ms and costs ~€4/month
- Unattributable adds 318ms and costs ~€3/month
- Google Tag Manager adds 216ms and costs ~€2/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.socialmediatoday.com takes 510ms 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
cmp.osano.com takes 336ms 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
Unattributable takes 318ms 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
Google Tag Manager takes 216ms 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