Performance
· 17 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.
4.88 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.68 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
614 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.013
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.88 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.
7.53 s
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s
1.9 s 2.2 s 2.6 s 3.0 sDThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction4200ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://static-cdn.siteground.com/js/e4bca53-906907b.js | 1723ms | 382ms | 20ms | 3rd |
| https://consent.cookiebot.com/35f00586-f657-44e7-8f33-8a5b055b478d/cc.js?renew=false&referer=www.siteground.com&dnt=false&init=false&culture=en | 807ms | 345ms | 41ms | 3rd |
| https://www.siteground.com/ | 724ms | 21ms | 9ms | 3rd |
| Unattributable | 513ms | 9ms | 0ms | 3rd |
| https://consent.cookiebot.com/uc.js | 433ms | 236ms | 12ms | 3rd |
DPage Weight InventoryAction115 resources · 1.5 MB · 56 KB savings availableFIX
~55.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 115 resources | 1.5 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.5 MB transferred, 115 requestsREVIEW
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
BImage Optimization19 images, 0 KB saveableREVIEW
BJS Bundles4 scripts, 56 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static-cdn.siteground.com/js/e4bca53-906907b.js | 50 KB | 31 KB (63%) | ✓ | 3rd |
| https://consent.cookiebot.com/35f00586-f657-44e7-8f33-8a5b055b478d/cc.js?renew=false&referer=www.siteground.com&dnt=false&init=false&culture=en | 113 KB | 25 KB (22%) | ✓ | 3rd |
| https://consent.cookiebot.com/uc.js | 27 KB | — | ✓ | 3rd |
| https://www.siteground.com/js/startmegachat.js | 2 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
A+Text CompressionAll text resources are compressedPASS
A+Font Loading6 fonts (512 KB)PASS
Web fonts
6
512 KB total
Render-blocking
0
of 6
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
- 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
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- Convert to woff2 for ~30% smaller file size
- 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)
Fixing the unchecked items could save ~303 KB and ~606 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints1 hints, 0 missing preconnectsPASS
Current Resource Hints
1 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Google Cloud
Network Waterfall115 requests over 1784msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static-cdn.siteground.com static-cdn.siteground.com | Other | 1723ms | 50 KB | 63% | €19/mo | Costly |
consent.cookiebot.com consent.cookiebot.com | Other | 807ms | 113 KB | 22% | €9/mo | Costly |
www.siteground.com www.siteground.com | Other | 724ms | 18 KB | — | €8/mo | Costly |
Unattributable Unattributable | Other | 513ms | 0 KB | — | €6/mo | Costly |
consent.cookiebot.com consent.cookiebot.com | Other | 433ms | 27 KB | — | €5/mo | Costly |
These scripts may cost more than they're worth
- static-cdn.siteground.com adds 1723ms and costs ~€19/month
- consent.cookiebot.com adds 807ms and costs ~€9/month
- www.siteground.com adds 724ms and costs ~€8/month
- Unattributable adds 513ms and costs ~€6/month
- consent.cookiebot.com adds 433ms 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
static-cdn.siteground.com takes 1723ms 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
63% of static-cdn.siteground.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
consent.cookiebot.com takes 807ms 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
www.siteground.com takes 724ms 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 513ms 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
consent.cookiebot.com takes 433ms 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