Performance
· 23 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.
1.57 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.61 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
7 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.29 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.
2.63 s
Page Load Progression
DThird-Party ImpactAction88% third-party, 0 ms blockingFIX
DPage Weight InventoryAction112 resources · 1.4 MB · 124 KB savings availableFIX
~123.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 112 resources | 1.4 MiB | ||||||
DHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.4 MB transferred, 112 requestsREVIEW
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
CImage OptimizationAction69 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
CJS Execution CostAction1503ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://elektrik-24.com/ | 846ms | 18ms | 22ms | 1st |
| Unattributable | 202ms | 9ms | 0ms | 1st |
| https://abt.s3.yandex.net/expjs/latest/exp.js | 190ms | 155ms | 1ms | 3rd |
| https://static.tildacdn.com/js/tilda-scripts-3.0.min.js | 167ms | 53ms | 1ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 100ms | 86ms | 12ms | 3rd |
BJS Bundles22 scripts, 124 KB unusedREVIEW
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://mc.yandex.ru/metrika/tag.js | 90 KB | 47 KB (53%) | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-forms-1.0.min.js | 33 KB | 28 KB (88%) | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-animation-2.0.min.js | 30 KB | 25 KB (82%) | ✓ | 3rd |
| https://static.tildacdn.com/js/jquery-1.10.2.min.js | 37 KB | 25 KB (66%) | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-cover-1.0.min.js | 5 KB | — | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-faq-1.0.min.js | 1 KB | — | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-menu-1.0.min.js | 4 KB | — | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-popup-1.0.min.js | 1 KB | — | ✓ | 3rd |
| https://static.tildacdn.com/ws/project1997430/tilda-blocks-page9090355.min.js?t=1776812064 | 7 KB | — | ✓ | 3rd |
| https://static.tildacdn.com/js/tilda-zero-1.1.min.js | 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BDocument CompressionDocument response uses gzip; brotli would be ~20% smallerREVIEW
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+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (80 KB)PASS
Web fonts
3
80 KB total
Render-blocking
0
of 3
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
AAsset Compression1 of 1 asset host still on gzipPASS
A+LCP Image PreloadLCP preload audit not availablePASS
AServer Response Intelligence2 server-response signal(s) detectedPASS
Network Waterfall112 requests over 5625msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
abt.s3.yandex.net abt.s3.yandex.net | Other | 190ms | 6 KB | — | ₽56/mo | Costly |
static.tildacdn.com static.tildacdn.com | Other | 167ms | 6 KB | — | ₽49/mo | Optional |
mc.yandex.ru mc.yandex.ru | Other | 100ms | 90 KB | 53% | ₽30/mo | Optional |
These scripts may cost more than they're worth
- abt.s3.yandex.net adds 190ms and costs ~₽56/month
abt.s3.yandex.net takes 190ms 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
53% of mc.yandex.ru'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
Image Optimization23 images, 0 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
23
Total Size
0 KB