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.
1.86 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
178 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.
1.86 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.
8.81 s
Page Load Progression
FPage Weight BudgetAction8.5 MB transferred, 176 requestsFIX
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
DPage Weight InventoryAction176 resources · 8.5 MB · 112 KB savings availableFIX
~111.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 176 resources | 8.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BJS Execution Cost915ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.untourism.int/libraries/jquery/dist/jquery.min.js?v=4.0.0-rc.1 | 449ms | 337ms | 5ms | 3rd |
| Unattributable | 221ms | 2ms | 0ms | 3rd |
| https://www.untourism.int/ | 163ms | 3ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-6EZHRG165Y | 81ms | 66ms | 14ms | 3rd |
BJS Bundles47 scripts, 112 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-6EZHRG165Y | 158 KB | 63 KB (40%) | ✓ | 3rd |
| https://www.untourism.int/themes/untourism/templates/components/custom/swiper/swiper.min.js?tdw158 | 42 KB | 27 KB (66%) | ✓ | 3rd |
| https://unpkg.com/leaflet@1.7.1/dist/leaflet.js | 40 KB | 21 KB (53%) | ✓ | 3rd |
| https://www.untourism.int/modules/contrib/better_exposed_filters/js/auto_submit.js?tdw158 | 3 KB | — | ✓ | 3rd |
| https://www.untourism.int/core/misc/drupal.js?v=11.2.10 | 6 KB | — | ✗ | 3rd |
| https://www.untourism.int/core/misc/drupal.init.js?v=11.2.10 | 0 KB | — | ✓ | 3rd |
| https://www.untourism.int/core/assets/vendor/jquery.ui/ui/version-min.js?v=11.2.10 | 0 KB | — | ✓ | 3rd |
| https://www.untourism.int/core/assets/vendor/jquery.ui/ui/data-min.js?v=11.2.10 | 0 KB | — | ✓ | 3rd |
| https://www.untourism.int/core/assets/vendor/jquery.ui/ui/disable-selection-min.js?v=11.2.10 | 0 KB | — | ✓ | 3rd |
| https://www.untourism.int/core/assets/vendor/jquery.ui/ui/jquery-patch-min.js?v=11.2.10 | 0 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
A+Text CompressionAll text resources are compressedPASS
AImage Optimization32 images, 0 KB saveablePASS
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
A+Font Loading8 fonts (292 KB)PASS
Web fonts
8
292 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
- 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 ~58 KB and ~116 ms
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
Network Waterfall176 requests over 1715msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.untourism.int www.untourism.int | Other | 449ms | 31 KB | — | $6/mo | Costly |
Unattributable Unattributable | Other | 221ms | 0 KB | — | $3/mo | Costly |
www.untourism.int www.untourism.int | Other | 163ms | 63 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 81ms | 158 KB | 40% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.untourism.int adds 449ms and costs ~$6/month
- Unattributable adds 221ms 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
www.untourism.int takes 449ms 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 221ms 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