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.
836 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.65 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
117 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.227
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.10 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.
3.15 s
Page Load Progression
FPage Weight BudgetAction2.6 MB transferred, 128 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
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
DJS BundlesAction60 scripts, 483 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c>m=4e64h1 | 147 KB | 106 KB (72%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Q8YVD4PXL4&cx=c&_slc=1 | 148 KB | 65 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-L884J52XQ5&cx=c>m=4e64h1 | 158 KB | 65 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-59RWD3R7JT&cx=c>m=4e64h1 | 151 KB | 64 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 147 KB | 62 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-57T3V5H | 155 KB | 53 KB (35%) | ✓ | 3rd |
| https://resources.digital-cloud-gov.medallia.com/wdcgov/31449/onsite/generic1776352683590.js | 77 KB | 39 KB (51%) | ✓ | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 55 KB | 28 KB (52%) | ✓ | 3rd |
| https://www.trade.gov/themes/custom/ita/js/ita_media_version.js?v=1 | 1 KB | — | ✓ | 3rd |
| https://www.trade.gov/libraries/slick/slick/slick.min.js?tdutxq | 11 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 InventoryAction128 resources · 2.6 MB · 483 KB savings availableFIX
~482.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 128 resources | 2.6 MiB | ||||||
BImage Optimization21 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
CJS Execution CostAction1036ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-57T3V5H | 214ms | 149ms | 62ms | 3rd |
| Unattributable | 189ms | 2ms | 0ms | 3rd |
| https://www.trade.gov/ | 181ms | 7ms | 1ms | 3rd |
| https://script.crazyegg.com/pages/versioned/common-scripts/4ce8c7df8d425cc50464576824ed91eb.js | 91ms | 72ms | 6ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-L884J52XQ5&cx=c>m=4e64h1 | 90ms | 75ms | 14ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-59RWD3R7JT&cx=c>m=4e64h1 | 78ms | 63ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L | 73ms | 60ms | 12ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-Q8YVD4PXL4&cx=c&_slc=1 | 68ms | 55ms | 12ms | 3rd |
| https://resources.digital-cloud-gov.medallia.com/wdcgov/31449/onsite/generic1776352683590.js | 52ms | 31ms | 10ms | 3rd |
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 Loading3 fonts (292 KB)PASS
Web fonts
3
292 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~157 KB and ~314 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
AHTTP Cachingmax-age=900 (15 minutes)PASS
max-age=900, public
| Directive | Value | Meaning |
|---|---|---|
| max-age | 900 | Cache for 15 minutes |
| public | — | Any cache may store this response |
Network Waterfall128 requests over 1756msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 214ms | 155 KB | 35% | $3/mo | Costly |
Unattributable Unattributable | Other | 189ms | 0 KB | — | $3/mo | Optional |
www.trade.gov www.trade.gov | Other | 181ms | 66 KB | — | $2/mo | Optional |
script.crazyegg.com script.crazyegg.com | Other | 91ms | 55 KB | 52% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 90ms | 158 KB | 41% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 78ms | 151 KB | 43% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 147 KB | 42% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 68ms | 148 KB | 44% | $1/mo | Optional |
resources.digital-cloud-gov.medallia.com resources.digital-cloud-gov.medallia.com | Other | 52ms | 77 KB | 51% | $1/mo | Optional |
These scripts may cost more than they're worth
- Google Tag Manager adds 214ms 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
Google Tag Manager takes 214ms 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
52% of script.crazyegg.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
51% of resources.digital-cloud-gov.medallia.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