Performance
· 24 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.
498 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.10 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
913 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.127
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.30 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.
6.71 s
Page Load Progression
FPage Weight BudgetAction5.3 MB transferred, 99 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
DJS Execution CostAction2834ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.vanguardmexico.com/66185.36b250b847ba11f8.js | 877ms | 800ms | 1ms | 1st |
| Unattributable | 505ms | 88ms | 0ms | 1st |
| https://www.vanguardmexico.com/polyfills.0148e7ec5ea59c4c.js | 491ms | 414ms | 0ms | 1st |
| https://www.vanguardmexico.com/33610.8b9c0e61a97cb771.js | 226ms | 219ms | 0ms | 1st |
| https://www.vanguardmexico.com/es/inicio | 207ms | 4ms | 0ms | 1st |
| https://fast.wistia.com/assets/external/publicApi.js@0.5.1 | 202ms | 150ms | 20ms | 3rd |
| https://www.vanguardmexico.com/28538.07f6a1b5f25d3bb4.js | 107ms | 77ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=AW-774648096&l=googleDataLayer | 79ms | 69ms | 9ms | 3rd |
| https://www.vanguardmexico.com/68341.098b568da913a28b.js | 73ms | 61ms | 0ms | 1st |
| https://corp.etm.assets.vgdynamic.info/files/intl_prd/mx_professional/379f26abac75/83447d1139b2/launch-683ee2ee48d7.min.js | 67ms | 61ms | 5ms | 3rd |
FJS BundlesAction54 scripts, 1.6 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.vanguardmexico.com/66185.36b250b847ba11f8.js | 2851 KB | 1274 KB (45%) | ✓ | 1st |
| https://fast.wistia.net/assets/external/engines/hls_video.js@0.5.1 | 157 KB | 121 KB (77%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-774648096&l=googleDataLayer | 152 KB | 62 KB (41%) | ✓ | 3rd |
| https://fast.wistia.com/assets/external/publicApi.js@0.5.1 | 145 KB | 61 KB (42%) | ✓ | 3rd |
| https://www.vanguardmexico.com/28538.07f6a1b5f25d3bb4.js | 100 KB | 48 KB (49%) | ✓ | 1st |
| https://corp.etm.assets.vgdynamic.info/files/intl_prd/mx_professional/379f26abac75/83447d1139b2/launch-683ee2ee48d7.min.js | 77 KB | 32 KB (41%) | ✓ | 3rd |
| https://mdl-medallia-digital.vanguard.com/pkg/1.0.0/web/MEX_external_libs/wdcusprem/62644/onsite/generic1754408308784.js | 61 KB | 31 KB (53%) | ✓ | 3rd |
| https://www.vanguardmexico.com/68341.098b568da913a28b.js | 77 KB | 29 KB (40%) | ✓ | 1st |
| https://fast.wistia.net/assets/external/captions.js@0.5.1 | 43 KB | 28 KB (67%) | ✓ | 3rd |
| https://www.vanguardmexico.com/common.487744a23c022944.js | 5 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
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 InventoryAction99 resources · 5.3 MB · 1.6 MB savings availableFIX
~1.6 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 99 resources | 5.3 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization9 images, 0 KB saveableREVIEW
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
CDocument CompressionActionDocument response served uncompressedREVIEW
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Third-Party Impact20% third-party, 0 ms blockingPASS
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (152 KB)PASS
Web fonts
4
152 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Server Response Intelligence1 server-response signal(s) detectedPASS
Network Waterfall99 requests over 6170msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
fast.wistia.com fast.wistia.com | Other | 202ms | 145 KB | 42% | MX$15/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 79ms | 152 KB | 41% | MX$6/mo | Optional |
corp.etm.assets.vgdynamic.info corp.etm.assets.vgdynamic.info | Other | 67ms | 77 KB | 41% | MX$5/mo | Optional |
These scripts may cost more than they're worth
- fast.wistia.com adds 202ms and costs ~MX$15/month
fast.wistia.com takes 202ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-10-07 — 2026-11-03)
LCP (p75)
3684 ms
60% good
INP (p75)
457 ms
45% good
CLS (p75)
0.160
60% good
FCP (p75)
2228 ms
TTFB (p75)
1424 ms
Image Optimization13 images, 952 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
13
Total Size
952 KB