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.
6.04 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
36.83 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
16.81 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.062
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
17.41 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.
56.46 s
Page Load Progression
FPage Weight BudgetAction7.2 MB transferred, 497 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
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction36485ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.newsday.com/_next/static/chunks/framework-493b78e0283065bc.js | 12896ms | 11200ms | 25ms | 3rd |
| https://www.newsday.com/ | 4690ms | 21ms | 4ms | 3rd |
| Unattributable | 3522ms | 537ms | 0ms | 3rd |
| https://az416426.vo.msecnd.net/scripts/a/ai.0.js | 1360ms | 1229ms | 34ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 1124ms | 871ms | 89ms | 3rd |
| https://cdn.a3kvau184uea.com/prod/newsday/fp.min.js?2026321 | 1003ms | 536ms | 8ms | 3rd |
| https://static.newsday.com/adtm/29e082cdf7d4/d4c7792a643b/launch-ENe1484b2b97da4cf1bd7f7a777f05562c.min.js?v=newsday-prod-20260416150145 | 798ms | 612ms | 55ms | 3rd |
| https://dn0qt3r0xannq.cloudfront.net/newsday-aHG4FkpCFw/newsday.com/prebid-wrapper.js | 773ms | 695ms | 31ms | 3rd |
| https://s.ntv.io/serve/load.js | 720ms | 578ms | 121ms | 3rd |
| https://dockerverse.com/build/qiwe59/xep1hr.module.js | 643ms | 144ms | 14ms | 3rd |
Showing top 10 of 48 scripts
FJS BundlesAction122 scripts, 1.5 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.ck4hkyq3myt6.com/prod/newsday/t8y9347t.min.js?2026321 | 287 KB | 216 KB (75%) | ✓ | 3rd |
| https://s.ntv.io/serve/load.js | 251 KB | 191 KB (76%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 96 KB (51%) | ✓ | 3rd |
| https://www.newsday.com/_next/static/chunks/2734-b69c6be0f80d0c6f.js | 139 KB | 87 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P2SHJCV&l=MG2DL | 163 KB | 73 KB (45%) | ✓ | 3rd |
| https://www.newsday.com/_next/static/chunks/pages/_app-7cc8de8520690867.js | 98 KB | 72 KB (74%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js | 128 KB | 69 KB (54%) | ✓ | 3rd |
| https://www.newsday.com/_next/static/chunks/bf32f307-377112fe9163e65f.js | 127 KB | 63 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-JVB9CV8DPF&l=MG2DL&cx=c>m=4e64h1 | 146 KB | 63 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-P7W5SM4DVM | 172 KB | 62 KB (36%) | ✓ | 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 InventoryAction497 resources · 7.2 MB · 1.5 MB savings availableFIX
~1.5 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 497 resources | 7.2 MiB | ||||||
CImage OptimizationAction161 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
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 (93 KB)PASS
Web fonts
5
93 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 Hints32 hints, 0 missing preconnectsPASS
Current Resource Hints
32 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+HTTP Cachingmax-age=31536000 (52 weeks)PASS
public, max-age=31536000, s-maxage=31536000
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 31536000 | Cache for 52 weeks |
| s-maxage | 31536000 | CDN caches for 52 weeks |
Network Waterfall497 requests over 11730msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.newsday.com www.newsday.com | Other | 12896ms | 55 KB | 37% | €68/mo | Costly |
www.newsday.com www.newsday.com | Other | 4690ms | 542 KB | — | €25/mo | Costly |
Unattributable Unattributable | Other | 3522ms | 0 KB | — | €19/mo | Costly |
az416426.vo.msecnd.net az416426.vo.msecnd.net | Other | 1360ms | 22 KB | — | €7/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 1124ms | 188 KB | 51% | €6/mo | Costly |
cdn.a3kvau184uea.com cdn.a3kvau184uea.com | Other | 1003ms | 23 KB | — | €5/mo | Costly |
static.newsday.com static.newsday.com | Other | 798ms | 77 KB | — | €4/mo | Costly |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 773ms | 75 KB | 40% | €4/mo | Costly |
s.ntv.io s.ntv.io | Other | 720ms | 251 KB | 76% | €4/mo | Costly |
dockerverse.com dockerverse.com | Other | 643ms | 36 KB | — | €3/mo | Costly |
cdn.ck4hkyq3myt6.com cdn.ck4hkyq3myt6.com | Other | 578ms | 287 KB | 75% | €3/mo | Costly |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 562ms | 5 KB | — | €3/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 552ms | 128 KB | 54% | €3/mo | Essential |
www.newsday.com www.newsday.com | Other | 527ms | 1 KB | — | €3/mo | Costly |
cdn.p-n.io cdn.p-n.io | Other | 511ms | 45 KB | 86% | €3/mo | Costly |
www.newsday.com www.newsday.com | Other | 509ms | 127 KB | 50% | €3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 412ms | 163 KB | 45% | €2/mo | Costly |
edge.aditude.io edge.aditude.io | Other | 369ms | 139 KB | 42% | €2/mo | Costly |
cdn.pranmcpkx.com cdn.pranmcpkx.com | Other | 367ms | 3 KB | — | €2/mo | Costly |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 363ms | 91 KB | 42% | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 311ms | 146 KB | 43% | €2/mo | Costly |
pagead2.googlesyndication.com pagead2.googlesyndication.com | Other | 290ms | 73 KB | 42% | €2/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 289ms | 26 KB | — | €2/mo | Costly |
try.abtasty.com try.abtasty.com | Other | 273ms | 46 KB | — | €1/mo | Costly |
js.matheranalytics.com js.matheranalytics.com | Other | 233ms | 0 KB | — | €1/mo | Costly |
b-code.liadm.com b-code.liadm.com | Other | 230ms | 46 KB | 72% | €1/mo | Costly |
raven-static.aditude.io raven-static.aditude.io | Other | 220ms | 107 KB | 57% | €1/mo | Costly |
ak.sail-horizon.com ak.sail-horizon.com | Other | 195ms | 48 KB | 66% | €1/mo | Optional |
www.newsday.com www.newsday.com | Other | 181ms | 98 KB | 74% | €1/mo | Optional |
www.newsday.com www.newsday.com | Other | 176ms | 35 KB | — | €1/mo | Optional |
www.newsday.com www.newsday.com | Other | 174ms | 139 KB | 64% | €1/mo | Optional |
static.newsday.com static.newsday.com | Other | 173ms | 102 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 157ms | 172 KB | 36% | €1/mo | Optional |
cdn.attn.tv cdn.attn.tv | Other | 146ms | 50 KB | 59% | €1/mo | Optional |
cdn.bc0a.com cdn.bc0a.com | Other | 130ms | 16 KB | — | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 129ms | 1 KB | — | €1/mo | Essential |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 107ms | 34 KB | — | €1/mo | Optional |
cdn.sy57d8wi.com cdn.sy57d8wi.com | Other | 92ms | 44 KB | 51% | €0/mo | Optional |
config.aps.amazon-adsystem.com config.aps.amazon-adsystem.com | Other | 82ms | 1 KB | — | €0/mo | Optional |
public.flourish.studio public.flourish.studio | Other | 81ms | 15 KB | — | €0/mo | Optional |
www.newsday.com www.newsday.com | Other | 81ms | 128 KB | 46% | €0/mo | Optional |
ep2.adtrafficquality.google ep2.adtrafficquality.google | Other | 75ms | 8 KB | — | €0/mo | Optional |
jadserve.postrelease.com jadserve.postrelease.com | Other | 72ms | 4 KB | — | €0/mo | Optional |
raven-static.aditude.io raven-static.aditude.io | Other | 70ms | 6 KB | — | €0/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 66ms | 9 KB | — | €0/mo | Essential |
try.abtasty.com try.abtasty.com | Other | 60ms | 3 KB | — | €0/mo | Optional |
widgets.sports.gracenote.com widgets.sports.gracenote.com | Other | 58ms | 18 KB | — | €0/mo | Optional |
dn0qt3r0xannq.cloudfront.net dn0qt3r0xannq.cloudfront.net | Other | 56ms | 17 KB | — | €0/mo | Optional |
These scripts may cost more than they're worth
- www.newsday.com adds 12896ms and costs ~€68/month
- www.newsday.com adds 4690ms and costs ~€25/month
- Unattributable adds 3522ms and costs ~€19/month
- az416426.vo.msecnd.net adds 1360ms and costs ~€7/month
- securepubads.g.doubleclick.net adds 1124ms and costs ~€6/month
- cdn.a3kvau184uea.com adds 1003ms and costs ~€5/month
- static.newsday.com adds 798ms and costs ~€4/month
- dn0qt3r0xannq.cloudfront.net adds 773ms and costs ~€4/month
- s.ntv.io adds 720ms and costs ~€4/month
- dockerverse.com adds 643ms and costs ~€3/month
- cdn.ck4hkyq3myt6.com adds 578ms and costs ~€3/month
- dn0qt3r0xannq.cloudfront.net adds 562ms and costs ~€3/month
- www.newsday.com adds 527ms and costs ~€3/month
- cdn.p-n.io adds 511ms and costs ~€3/month
- www.newsday.com adds 509ms and costs ~€3/month
- Google Tag Manager adds 412ms and costs ~€2/month
- edge.aditude.io adds 369ms and costs ~€2/month
- cdn.pranmcpkx.com adds 367ms and costs ~€2/month
- c.amazon-adsystem.com adds 363ms and costs ~€2/month
- Google Tag Manager adds 311ms and costs ~€2/month
- pagead2.googlesyndication.com adds 290ms and costs ~€2/month
- Microsoft Clarity adds 289ms and costs ~€2/month
- try.abtasty.com adds 273ms and costs ~€1/month
- js.matheranalytics.com adds 233ms and costs ~€1/month
- b-code.liadm.com adds 230ms and costs ~€1/month
- raven-static.aditude.io adds 220ms and costs ~€1/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.newsday.com takes 12896ms 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
www.newsday.com takes 4690ms 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 3522ms 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
az416426.vo.msecnd.net takes 1360ms 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
securepubads.g.doubleclick.net takes 1124ms 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
51% 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
cdn.a3kvau184uea.com takes 1003ms 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
static.newsday.com takes 798ms 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
dn0qt3r0xannq.cloudfront.net takes 773ms 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
s.ntv.io takes 720ms 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 s.ntv.io'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
dockerverse.com takes 643ms 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
cdn.ck4hkyq3myt6.com takes 578ms 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 cdn.ck4hkyq3myt6.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
dn0qt3r0xannq.cloudfront.net takes 562ms 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
54% of OneTrust'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
www.newsday.com takes 527ms 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
cdn.p-n.io takes 511ms 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
86% of cdn.p-n.io'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
www.newsday.com takes 509ms 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
50% of www.newsday.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
Google Tag Manager takes 412ms 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
edge.aditude.io takes 369ms 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
cdn.pranmcpkx.com takes 367ms 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
c.amazon-adsystem.com takes 363ms 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 311ms 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
pagead2.googlesyndication.com takes 290ms 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
Microsoft Clarity takes 289ms 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
try.abtasty.com takes 273ms 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
js.matheranalytics.com takes 233ms 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
b-code.liadm.com takes 230ms 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
72% of b-code.liadm.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
raven-static.aditude.io takes 220ms 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
57% of raven-static.aditude.io'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
66% of ak.sail-horizon.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
74% of www.newsday.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
64% of www.newsday.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
59% of cdn.attn.tv'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
51% of cdn.sy57d8wi.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