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.
1.76 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.17 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
33 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.003
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.37 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.
4.24 s
Page Load Progression
FPage Weight BudgetAction4.4 MB transferred, 110 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
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
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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS BundlesAction29 scripts, 430 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.seagate.com/etc.clientlibs/seagate/clientlibs/clientlib-seagate.min.8e9529379a8e5684b9f63354a285515c.js | 393 KB | 242 KB (62%) | ✗ | 3rd |
| https://assets.adobedtm.com/a057d70555d3/6df4ce200bd5/launch-81769e7458bc.min.js | 135 KB | 74 KB (55%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js | 124 KB | 66 KB (53%) | ✓ | 3rd |
| https://cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js | 48 KB | 24 KB (51%) | ✓ | 3rd |
| https://www.seagate.com/etc.clientlibs/clientlibs/granite/jquery.min.cee8557e8779d371fe722bbcdd3b3eb7.js | 35 KB | 24 KB (68%) | ✓ | 3rd |
| https://www.seagate.com/content/dam/seagate/assets/system/patch/patch.js | 0 KB | — | ✓ | 3rd |
| https://www.seagate.com/etc.clientlibs/clientlibs/granite/jquery/granite.min.543d214c88dfa6f4a3233b630c82d875.js | 2 KB | — | ✓ | 3rd |
| https://www.seagate.com/etc.clientlibs/seagate/components/minicart/clientlib-minicart.min.5af1ca72b49fc1a0e4b95fa57c0d0239.js | 8 KB | — | ✓ | 3rd |
| https://www.seagate.com/etc.clientlibs/seagate/components/headerecom/clientlib-headerecom.min.3acdfeb752a118021c8c5f7455f344a9.js | 2 KB | — | ✓ | 3rd |
| https://www.seagate.com/etc.clientlibs/seagate/components/cardlayoutfeaturedproducts/clientlib.min.659441a55b72f45f941250d925b77124.js | 3 KB | — | ✓ | 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 InventoryAction110 resources · 4.4 MB · 430 KB savings availableFIX
~429.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 110 resources | 4.4 MiB | ||||||
CImage OptimizationAction31 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
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
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
CJS Execution CostAction1086ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.seagate.com/es/es/ | 483ms | 3ms | 2ms | 3rd |
| Unattributable | 192ms | 33ms | 0ms | 3rd |
| https://www.seagate.com/etc.clientlibs/seagate/clientlibs/clientlib-seagate.min.8e9529379a8e5684b9f63354a285515c.js | 170ms | 75ms | 61ms | 3rd |
| https://cdn.userway.org/remediation/2026-04-14-10-40-20/paid/remediation-tool.js?ts=1776163220800 | 117ms | 110ms | 2ms | 3rd |
| https://assets.adobedtm.com/a057d70555d3/6df4ce200bd5/launch-81769e7458bc.min.js | 64ms | 50ms | 12ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js | 59ms | 40ms | 10ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading10 fonts (444 KB)PASS
Web fonts
10
444 KB total
Render-blocking
0
of 10
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
AHTTP Cachingmax-age=3600 (1 hour)PASS
max-age=3600
| Directive | Value | Meaning |
|---|---|---|
| max-age | 3600 | Cache for 1 hour |
Network Waterfall110 requests over 7490msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.seagate.com www.seagate.com | Other | 483ms | 39 KB | — | €5/mo | Costly |
Unattributable Unattributable | Other | 192ms | 0 KB | — | €2/mo | Optional |
www.seagate.com www.seagate.com | Other | 170ms | 393 KB | 62% | €2/mo | Optional |
cdn.userway.org cdn.userway.org | Other | 117ms | 39 KB | — | €1/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 64ms | 135 KB | 55% | €1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 59ms | 124 KB | 53% | €1/mo | Essential |
These scripts may cost more than they're worth
- www.seagate.com adds 483ms and costs ~€5/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.seagate.com takes 483ms 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
62% of www.seagate.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
55% of assets.adobedtm.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
53% 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