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.
1.11 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
8.60 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
377 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.437
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.29 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.
8.68 s
Page Load Progression
2.2 s
4.3 s
6.5 s
8.7 s
10.9 s
13.0 s
15.2 s
17.4 sFPage Weight BudgetAction15.7 MB transferred, 333 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 CostAction3526ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.3/jquery.min.js | 722ms | 356ms | 3ms | 3rd |
| Unattributable | 659ms | 88ms | 0ms | 3rd |
| https://www.animenewsnetwork.com/ | 580ms | 144ms | 2ms | 3rd |
| https://cdn.intergient.com/pageos/V.20260421.1/main.282c283e39679935e999.js | 341ms | 298ms | 19ms | 3rd |
| https://cdn.playwire.com/bolt4/js/zeus/releases/4.6.61/7.js | 276ms | 247ms | 5ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 113ms | 74ms | 29ms | 3rd |
| https://fundingchoicesmessages.google.com/i/154013155?ers=3 | 111ms | 101ms | 8ms | 3rd |
| https://cdn.intergient.com/prebid/prebid.05eaa3284c60ad6e334d.js | 101ms | 78ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SSCMTRZ1BZ&cx=c>m=4e64k1 | 94ms | 77ms | 16ms | 3rd |
| https://btloader.com/tag?o=5150306120761344&upapi=true | 88ms | 78ms | 7ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction102 scripts, 1.1 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 130 KB (69%) | ✓ | 3rd |
| https://cdn.intergient.com/prebid/prebid.05eaa3284c60ad6e334d.js | 222 KB | 116 KB (52%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 148 KB | 109 KB (74%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 147 KB | 109 KB (74%) | ✓ | 3rd |
| https://cdn.intergient.com/pageos/V.20260421.1/main.282c283e39679935e999.js | 171 KB | 94 KB (55%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-921142-1&cx=c>m=4e64k0 | 124 KB | 91 KB (74%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FVWZ0RM4DH&l=audDataLayer | 145 KB | 72 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-SSCMTRZ1BZ&cx=c>m=4e64k1 | 174 KB | 70 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-921142-1 | 125 KB | 64 KB (51%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-G3C3RKGF07 | 141 KB | 59 KB (42%) | ✓ | 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 InventoryAction333 resources · 15.7 MB · 1.1 MB savings availableFIX
~1.1 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 333 resources | 15.7 MiB | ||||||
BImage Optimization32 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font LoadingNo web fonts (system fonts)PASS
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
AHTTP Cachingmax-age=86400 (1 day)PASS
max-age=86400
| Directive | Value | Meaning |
|---|---|---|
| max-age | 86400 | Cache for 1 day |
Network Waterfall333 requests over 36093msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
cdnjs cdnjs.cloudflare.com | CDN | 722ms | 30 KB | — | €8/mo | Costly |
Unattributable Unattributable | Other | 659ms | 0 KB | — | €7/mo | Costly |
www.animenewsnetwork.com www.animenewsnetwork.com | Other | 580ms | 48 KB | — | €6/mo | Costly |
cdn.intergient.com cdn.intergient.com | Other | 341ms | 171 KB | 55% | €4/mo | Costly |
cdn.playwire.com cdn.playwire.com | Other | 276ms | 44 KB | — | €3/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 113ms | 187 KB | 69% | €1/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 111ms | 70 KB | 52% | €1/mo | Optional |
cdn.intergient.com cdn.intergient.com | Other | 101ms | 222 KB | 52% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 94ms | 174 KB | 41% | €1/mo | Optional |
btloader.com btloader.com | Other | 88ms | 50 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 87ms | 141 KB | 42% | €1/mo | Optional |
www.animenewsnetwork.com www.animenewsnetwork.com | Other | 84ms | 0 KB | — | €1/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 77ms | 91 KB | 45% | €1/mo | Optional |
cdn.animenewsnetwork.com cdn.animenewsnetwork.com | Other | 75ms | 67 KB | 50% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 65ms | 145 KB | 50% | €1/mo | Optional |
config.aps.amazon-adsystem.com config.aps.amazon-adsystem.com | Other | 52ms | 4 KB | — | €1/mo | Optional |
These scripts may cost more than they're worth
- cdnjs adds 722ms and costs ~€8/month
- Unattributable adds 659ms and costs ~€7/month
- www.animenewsnetwork.com adds 580ms and costs ~€6/month
- cdn.intergient.com adds 341ms and costs ~€4/month
- cdn.playwire.com adds 276ms and costs ~€3/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
cdnjs takes 722ms 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 659ms 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.animenewsnetwork.com takes 580ms 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.intergient.com takes 341ms 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
55% of cdn.intergient.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
cdn.playwire.com takes 276ms 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
52% of fundingchoicesmessages.google.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
52% of cdn.intergient.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
50% of cdn.animenewsnetwork.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
50% of Google Tag Manager'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