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.
898 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.00 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.22 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.84 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.
8.09 s
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s 1.9 s 2.2 s 2.6 s 3.0 sFPage Weight BudgetAction7.7 MB transferred, 159 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 CostAction4441ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://nj.gov/Sprighter-a-newly-of-my-Louer-Entermittlemaine-I | 1053ms | 939ms | 25ms | 1st |
| https://beta.nj.gov/sies-stirresouncan-peopleast-knowt-tha-If-you-re | 866ms | 811ms | 24ms | 3rd |
| https://nj.gov/ | 533ms | 2ms | 1ms | 1st |
| Unattributable | 352ms | 74ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-P3V3PJ6 | 201ms | 174ms | 19ms | 3rd |
| https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.VRmZKspy56E.O/am=AAAAAQ/d=1/exm=el_conf/ed=1/rs=AN8SPfr19FYIaQWCvBYtl2_gp8OxhpIGyQ/m=el_main | 134ms | 93ms | 20ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-17010364938&cx=c>m=4e64h1 | 104ms | 87ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-11319769527&cx=c>m=4e64h1 | 98ms | 64ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6KHKTBYZR6&cx=c>m=4e64h1 | 91ms | 75ms | 14ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-16743459667&cx=c>m=4e64h1 | 77ms | 64ms | 13ms | 3rd |
Showing top 10 of 23 scripts
FJS BundlesAction61 scripts, 1.6 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.en_US.VRmZKspy56E.O/am=AAAAAQ/d=1/exm=el_conf/ed=1/rs=AN8SPfr19FYIaQWCvBYtl2_gp8OxhpIGyQ/m=el_main | 119 KB | 95 KB (80%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-FLNQL9YJD1&cx=c>m=4e64h1 | 173 KB | 73 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HCNHMWD5TF&cx=c>m=4e64h1 | 156 KB | 68 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-TMR01P7384&cx=c>m=4e64h1 | 157 KB | 68 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-HTW9MER90K&cx=c>m=4e64h1 | 152 KB | 66 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6KHKTBYZR6&cx=c>m=4e64h1 | 157 KB | 66 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13117649&cx=c>m=4e64h1 | 129 KB | 62 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-14154266&cx=c>m=4e64h1 | 129 KB | 62 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-14452434&cx=c>m=4e64h1 | 129 KB | 62 KB (48%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-10305561&cx=c>m=4e64h1 | 129 KB | 62 KB (48%) | ✓ | 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 InventoryAction159 resources · 7.7 MB · 1.6 MB savings availableFIX
~1.6 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 159 resources | 7.7 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BThird-Party Impact53% third-party, 0 ms blockingREVIEW
CImage OptimizationAction33 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
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 Loading8 fonts (685 KB)PASS
Web fonts
8
685 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
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)
Fixing the unchecked items could save ~270 KB and ~540 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall159 requests over 5092msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
beta.nj.gov beta.nj.gov | Other | 866ms | 221 KB | — | $12/mo | Costly |
Unattributable Unattributable | Other | 352ms | 0 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 201ms | 181 KB | 32% | $3/mo | Costly |
translate.googleapis.com translate.googleapis.com | Other | 134ms | 119 KB | 80% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 104ms | 168 KB | 35% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 98ms | 144 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 91ms | 157 KB | 42% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 145 KB | 39% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 173 KB | 42% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 76ms | 144 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 75ms | 144 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 74ms | 157 KB | 43% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 74ms | 145 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 145 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 156 KB | 44% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 72ms | 144 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 72ms | 144 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 141 KB | 40% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 152 KB | 44% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 141 KB | 39% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 54ms | 131 KB | 46% | $1/mo | Optional |
These scripts may cost more than they're worth
- beta.nj.gov adds 866ms and costs ~$12/month
- Unattributable adds 352ms and costs ~$5/month
- Google Tag Manager adds 201ms and costs ~$3/month
64% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
beta.nj.gov takes 866ms 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 352ms 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 201ms 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
80% of translate.googleapis.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