Performance
· 17 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.
3.22 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
17.77 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
413 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.
32.81 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.
17.77 s
Page Load Progression
FPage Weight BudgetAction2.7 MB transferred, 37 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction2138ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.rawstory.com/ | 646ms | 105ms | 43ms | 3rd |
| Unattributable | 612ms | 25ms | 0ms | 3rd |
| https://tagan.adlightning.com/rawstory/op.js | 257ms | 237ms | 7ms | 3rd |
| https://tagan.adlightning.com/rawstory/b-682065e-3b86f1db.js | 175ms | 153ms | 8ms | 3rd |
| https://tagan.adlightning.com/rawstory/bl-0d6ee0c-0e633374.js | 166ms | 145ms | 15ms | 3rd |
| https://static.chartbeat.com/js/chartbeat.js | 124ms | 104ms | 5ms | 3rd |
| https://www.rawstory.com/static/dist/social-ux/main.e904fda0cc1755b4dd4c.bundle.mjs | 98ms | 66ms | 2ms | 3rd |
| https://launchpad-wrapper.privacymanager.io/6a56b78e-3a46-44df-a7c1-3b9d4052c2fb/launchpad-liveramp.js | 62ms | 60ms | 1ms | 3rd |
DPage Weight InventoryAction37 resources · 2.7 MB · 23 KB savings availableFIX
~23.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 37 resources | 2.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization10 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Performance issues directly impact user engagement and conversion rates.
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (31 KB)PASS
Web fonts
1
31 KB total
Render-blocking
0
of 1
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)
AJS Bundles11 scripts, 23 KB unusedPASS
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://tagan.adlightning.com/rawstory/b-682065e-3b86f1db.js | 32 KB | 23 KB (75%) | ✓ | 3rd |
| https://www.rawstory.com/static/dist/social-ux/main.e904fda0cc1755b4dd4c.bundle.mjs | 20 KB | — | ✓ | 3rd |
| https://www.rawstory.com/static/dist/social-ux/runtime.a0845c2239181f89813b.bundle.mjs | 3 KB | — | ✓ | 3rd |
| https://tagan.adlightning.com/rawstory/op.js | 15 KB | — | ✓ | 3rd |
| https://launchpad.privacymanager.io/latest/launchpad.bundle.js | 41 KB | — | ✗ | 3rd |
| https://launchpad-wrapper.privacymanager.io/6a56b78e-3a46-44df-a7c1-3b9d4052c2fb/launchpad-liveramp.js | 2 KB | — | ✓ | 3rd |
| https://static.chartbeat.com/js/chartbeat_mab.js | 10 KB | — | ✓ | 3rd |
| https://tagan.adlightning.com/rawstory/bl-0d6ee0c-0e633374.js | 60 KB | — | ✓ | 3rd |
| https://static.chartbeat.com/js/chartbeat.js | 16 KB | — | ✓ | 3rd |
| https://sb.scorecardresearch.com/internal-cs/default/beacon-and.js | 8 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
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints9 hints, 0 missing preconnectsPASS
Current Resource Hints
9 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall37 requests over 25604msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.rawstory.com www.rawstory.com | Other | 646ms | 96 KB | — | €10/mo | Costly |
Unattributable Unattributable | Other | 612ms | 0 KB | — | €10/mo | Costly |
tagan.adlightning.com tagan.adlightning.com | Other | 257ms | 15 KB | — | €4/mo | Costly |
tagan.adlightning.com tagan.adlightning.com | Other | 175ms | 32 KB | 75% | €3/mo | Optional |
tagan.adlightning.com tagan.adlightning.com | Other | 166ms | 60 KB | — | €3/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 124ms | 16 KB | — | €2/mo | Optional |
www.rawstory.com www.rawstory.com | Other | 98ms | 20 KB | — | €2/mo | Optional |
launchpad-wrapper.privacymanager.io launchpad-wrapper.privacymanager.io | Other | 62ms | 2 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- www.rawstory.com adds 646ms and costs ~€10/month
- Unattributable adds 612ms and costs ~€10/month
- tagan.adlightning.com adds 257ms and costs ~€4/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.rawstory.com takes 646ms 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 612ms 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
tagan.adlightning.com takes 257ms 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
75% of tagan.adlightning.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