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.
4.07 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
16.60 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
5.73 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.039
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.83 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.
28.68 s
Page Load Progression
FPage Weight BudgetAction4.3 MB transferred, 177 requestsFIX
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
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
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
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
FJS Execution CostAction15816ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://bleacherreport.com/_next/static/chunks/4388-089d59b854059f8e.js | 7389ms | 6659ms | 22ms | 1st |
| https://bleacherreport.com/_next/static/chunks/7a52a41e-81a00ac80b265494.js | 2731ms | 2509ms | 13ms | 1st |
| https://bleacherreport.com/ | 1980ms | 83ms | 240ms | 1st |
| Unattributable | 1009ms | 33ms | 0ms | 3rd |
| https://bleacherreport.com/_next/static/chunks/webpack-53e5fc2ae63db2c3.js | 987ms | 927ms | 29ms | 1st |
| https://bleacherreport.com/_next/static/chunks/5999-0c9468a9ef32f055.js | 215ms | 46ms | 100ms | 1st |
| https://cadmus.script.ac/d2uap9jskdzp2/script.js | 214ms | 179ms | 18ms | 3rd |
| https://platform.twitter.com/widgets.js | 180ms | 147ms | 7ms | 3rd |
| https://assets.bounceexchange.com/assets/smart-tag/versioned/main-v2_567848e754a175dbe621932e8f6a1b7e.br.js | 137ms | 95ms | 39ms | 3rd |
| https://bleacherreport.com/_next/static/chunks/7106.131519ed7b93211a.js | 122ms | 89ms | 33ms | 1st |
Showing top 10 of 20 scripts
FJS BundlesAction81 scripts, 740 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://bleacherreport.com/_next/static/chunks/5999-0c9468a9ef32f055.js | 332 KB | 203 KB (61%) | ✓ | 1st |
| https://bleacherreport.com/_next/static/chunks/1797-a9e61dea545aab23.js | 260 KB | 115 KB (44%) | ✓ | 1st |
| https://assets.bounceexchange.com/assets/smart-tag/versioned/main-v2_567848e754a175dbe621932e8f6a1b7e.br.js | 116 KB | 88 KB (76%) | ✓ | 3rd |
| https://bleacherreport.com/_next/static/chunks/7106.131519ed7b93211a.js | 115 KB | 77 KB (68%) | ✓ | 1st |
| https://bleacherreport.com/_next/static/chunks/7113-b9f0bf482f4d9888.js | 94 KB | 58 KB (62%) | ✓ | 1st |
| https://www.datadoghq-browser-agent.com/us1/v6/datadog-rum.js | 61 KB | 53 KB (87%) | ✓ | 3rd |
| https://bleacherreport.com/_next/static/chunks/706f09f2-db2a2367ee1dcc55.js | 77 KB | 48 KB (64%) | ✓ | 1st |
| https://bleacherreport.com/_next/static/chunks/6ca66c39.4cfad5a5a0780cac.js | 64 KB | 28 KB (45%) | ✓ | 1st |
| https://i.cdn.turner.com/ads/adfuel/adfuel-3.1.9.min.js | 31 KB | 25 KB (82%) | ✓ | 3rd |
| https://assets.bounceexchange.com/assets/bounce/jquery-3.7.1.min.js | 30 KB | 23 KB (76%) | ✓ | 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 InventoryAction177 resources · 4.3 MB · 740 KB savings availableFIX
~740.0 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 177 resources | 4.3 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
no-cache, no-store
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
BThird-Party Impact44% third-party, 0 ms blockingREVIEW
BImage Optimization46 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading7 fonts (452 KB)PASS
Web fonts
7
452 KB total
Render-blocking
0
of 7
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 Hints12 hints, 0 missing preconnectsPASS
Current Resource Hints
12 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: Axis12 Ltd
Network Waterfall177 requests over 6125msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 1009ms | 0 KB | — | €11/mo | Costly |
cadmus.script.ac cadmus.script.ac | Other | 214ms | 75 KB | — | €2/mo | Costly |
Twitter/X Embed platform.twitter.com | Social | 180ms | 27 KB | — | €2/mo | Optional |
assets.bounceexchange.com assets.bounceexchange.com | Other | 137ms | 116 KB | 76% | €1/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 117ms | 16 KB | — | €1/mo | Optional |
www.datadoghq-browser-agent.com www.datadoghq-browser-agent.com | Other | 103ms | 61 KB | 87% | €1/mo | Optional |
i.cdn.turner.com i.cdn.turner.com | Other | 92ms | 35 KB | — | €1/mo | Optional |
lightning.bleacherreport.com lightning.bleacherreport.com | Other | 66ms | 20 KB | — | €1/mo | Optional |
lightning.bleacherreport.com lightning.bleacherreport.com | Other | 59ms | 36 KB | — | €1/mo | Optional |
static.chartbeat.com static.chartbeat.com | Other | 50ms | 10 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 1009ms and costs ~€11/month
- cadmus.script.ac adds 214ms and costs ~€2/month
Unattributable takes 1009ms 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
cadmus.script.ac takes 214ms 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
76% of assets.bounceexchange.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
87% of www.datadoghq-browser-agent.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