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.
4.26 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.95 s
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.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.64 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.
7.37 s
Page Load Progression
1.1 s 2.3 s 3.4 s 4.5 s 5.7 s
6.8 s
8.0 s
9.1 sFPage Weight BudgetAction2.7 MB transferred, 103 requestsFIX
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
BImage Optimization23 images, 0 KB saveableREVIEW
BJS Execution Cost580ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.gub.uy/ | 278ms | 6ms | 0ms | 1st |
| Unattributable | 154ms | 24ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-135104282-1 | 77ms | 53ms | 16ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-RDFBN794BE&cx=c>m=4e64k0 | 71ms | 52ms | 19ms | 3rd |
CJS BundlesAction39 scripts, 160 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-RDFBN794BE&cx=c>m=4e64k0 | 173 KB | 72 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-135104282-1 | 125 KB | 63 KB (51%) | ✓ | 3rd |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_dxIVcwvQ00owLGoUGPTfRYXU-T5rnj8Xi0cXfb3Kn58.ZlnNfWVM8UsLarGKlGoh3dNb3Fc2byEO1gmMvRrHnaA.js?v=3.7.1 | 42 KB | 24 KB (58%) | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_mFzUkjUxStqgHC8aG7xRbdL6fE1PCi6EiNgqsEIWhqc.bxyPhfnLun1IE7QwO-Vh3hFY7I0Sfc8Hj0t_QBztg_g.js?tdoiov | 1 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_W9oEQrizuFnkM4OzaceIe9tdyg1ldQr1_H63Eoob7vI.xApuvlNHjozIgntNtw3IhDttpD6BSWjTZOVdbbzYV50.js?tdoiov | 10 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_V1oRQ-kJlXBZaEklOtPUe_1t8-l0RS94HJ3gsqxKikc.U6aWXXJhraNr5dOKlkyy4ROQYgzeU6WT3MAg9oJL4xE.js?v=10.5.8 | 3 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_KRjtvzl6UujB23-j_sF6dqOcbqg2z8ej98A8RU9bGsg.PMStFjTMwcunmsGxDk8q4czTJK7I2mysM8mvkmmWslk.js?v=10.5.8 | 1 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_WmhavmnC0K35xZ9vLX51qtRqFT74puvZXIMWnNUYpbM.FFsaoTajfWeDE8ooiOAvc4LUHZKnz3rtX43Vu2cp0wY.js?v=6.2.0 | 4 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_w0iO3No0CsyHgJmryEbhwpkh5zx6m6dhvawBt4ufwyA.zQjwZ2vZrEgWhTEKe2JOAVwYSudK7nQGqAe77b3z9Fk.js?v=1.0.1 | 1 KB | — | ✓ | 1st |
| https://www.gub.uy/sites/gubuy/files/js/optimized/js_auGPmS4cF9TsbGXFseYml5QbO8vj66-oK7c2Mf0ZoIw.-TOzCv2ZfEIjAxpKFMvUrV4AQ-u6PBzesjHQ7vJi-JU.js?tdoiov | 1 KB | — | ✓ | 1st |
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
CPage Weight InventoryAction103 resources · 2.7 MB · 160 KB savings availableREVIEW
~159.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 103 resources | 2.7 MiB | ||||||
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
BHTTP Cachingmust-revalidate, no-cache, privateREVIEW
must-revalidate, no-cache, private
| Directive | Value | Meaning |
|---|---|---|
| must-revalidate | — | Must recheck with server after expiry |
| no-cache | — | Cache but always revalidate first |
| private | — | Only browser cache, not CDN/proxy |
A+Third-Party Impact12% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (54 KB)PASS
Web fonts
4
54 KB total
Render-blocking
0
of 4
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
Network Waterfall103 requests over 10737msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 154ms | 0 KB | — | UY$85/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 125 KB | 51% | UY$43/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 71ms | 173 KB | 41% | UY$39/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 154ms and costs ~UY$85/month
52% 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
Unattributable takes 154ms 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 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