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.
752 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
891 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
9 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.301
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.52 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.
2.39 s
Page Load Progression
DThird-Party ImpactAction98% third-party, 0 ms blockingFIX
FJS BundlesAction28 scripts, 605 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 129 KB (69%) | ✓ | 3rd |
| https://cdn.ex.co/player/ap/4.230.0-947b4e1/player.js | 139 KB | 115 KB (83%) | ✓ | 3rd |
| https://player.ex.co/player/74f5c7b5-09b8-4b35-9a85-5637d4dae0c9 | 195 KB | 98 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NSWCNL5 | 140 KB | 70 KB (50%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 58 KB (64%) | ✓ | 3rd |
| https://micro.rubiconproject.com/prebid/dynamic/21666.js | 146 KB | 48 KB (33%) | ✓ | 3rd |
| https://01.cdn.mediatradecraft.com/cmdjs/runtime-2.8.16.js | 41 KB | 24 KB (59%) | ✓ | 3rd |
| https://cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js | 42 KB | 21 KB (51%) | ✓ | 3rd |
| https://www.ancestrycdn.com/ui-static/lib/jquery/1.11.1/jquery.min.js | 30 KB | 20 KB (70%) | ✓ | 3rd |
| https://cadmus.script.ac/d1ppgmexmjm31c/script.js | 88 KB | 20 KB (23%) | ✓ | 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 InventoryAction115 resources · 1.8 MB · 605 KB savings availableFIX
~604.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 115 resources | 1.8 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| max-age | 0 | Cache for 0 seconds |
| no-store | — | Never cache this response |
| no-cache | — | Cache but always revalidate first |
| must-revalidate | — | Must recheck with server after expiry |
| post-check | 0 | |
| pre-check | 0 |
CPage Weight BudgetAction1.8 MB transferred, 115 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
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
BJS Execution Cost756ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 213ms | 108ms | 0ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 156ms | 131ms | 16ms | 3rd |
| https://player.ex.co/player/74f5c7b5-09b8-4b35-9a85-5637d4dae0c9 | 95ms | 71ms | 19ms | 3rd |
| https://rootsweb.com/ | 90ms | 20ms | 1ms | 1st |
| https://micro.rubiconproject.com/prebid/dynamic/21666.js | 74ms | 64ms | 9ms | 3rd |
| https://rootsweb.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 66ms | 64ms | 1ms | 1st |
| https://cadmus.script.ac/d1ppgmexmjm31c/script.js | 62ms | 53ms | 7ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Image Optimization6 images, 0 KB saveablePASS
A+Font Loading5 fonts (88 KB)PASS
Web fonts
5
88 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
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall115 requests over 4403msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 213ms | 0 KB | — | $3/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 156ms | 188 KB | 69% | $2/mo | Optional |
player.ex.co player.ex.co | Other | 95ms | 195 KB | 50% | $1/mo | Optional |
micro.rubiconproject.com micro.rubiconproject.com | Other | 74ms | 146 KB | 33% | $1/mo | Optional |
cadmus.script.ac cadmus.script.ac | Other | 62ms | 88 KB | 23% | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 213ms and costs ~$3/month
79% 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
Unattributable takes 213ms 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 securepubads.g.doubleclick.net'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
50% of player.ex.co'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