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.
616 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.68 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
93 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.34 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.
6.43 s
Page Load Progression
FPage Weight BudgetAction7.8 MB transferred, 328 requestsFIX
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
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 ImpactAction70% third-party, 0 ms blockingFIX
FJS Execution CostAction4133ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://avilon.ru/_next/static/chunks/6353-48a05458ee170b52.js | 2492ms | 1149ms | 12ms | 1st |
| https://avilon.ru/ | 677ms | 11ms | 9ms | 1st |
| Unattributable | 487ms | 80ms | 0ms | 1st |
| https://avilon.webim.ru/v/ui-resources.php?location=avilon_ru&mode=desktop&lang=ru&41167a34&callback=getWebimUIResourcesCallback | 198ms | 147ms | 12ms | 3rd |
| https://mod.calltouch.ru/front/widget.js?version=faff9b7c | 120ms | 85ms | 9ms | 3rd |
| https://avilon.webim.ru/js/button.js | 54ms | 35ms | 17ms | 3rd |
| https://mc.yandex.ru/metrika/tag.js | 53ms | 48ms | 4ms | 3rd |
| https://web-static.s.mindbox.ru/js/byendpoint/avilon.website.js?_=5929425 | 52ms | 32ms | 15ms | 3rd |
FJS BundlesAction67 scripts, 675 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://avilon.ru/_next/static/chunks/8772-7cccb23a48ea3e7c.js | 182 KB | 165 KB (91%) | ✓ | 1st |
| https://api.s.mindbox.ru/scripts/modules/webpush.js?version=1.0.792 | 165 KB | 121 KB (73%) | ✓ | 3rd |
| https://avilon.webim.ru/js/button.js | 217 KB | 109 KB (51%) | ✓ | 3rd |
| https://mod.calltouch.ru/front/widget.js?version=faff9b7c | 167 KB | 93 KB (56%) | ✓ | 3rd |
| https://web-static.s.mindbox.ru/js/byendpoint/avilon.website.js?_=5929425 | 200 KB | 70 KB (35%) | ✓ | 3rd |
| https://avilon.ru/_next/static/chunks/6353-48a05458ee170b52.js | 120 KB | 50 KB (41%) | ✓ | 1st |
| https://mc.yandex.ru/metrika/tag.js | 86 KB | 39 KB (45%) | ✓ | 3rd |
| https://mod.calltouch.ru/front/init-widget.js?ctObject=ct&rand=1574142 | 41 KB | 28 KB (71%) | ✓ | 3rd |
| https://mod.calltouch.ru/d_client_new.js?param;;ref;urlhttps%3A%2F%2Favilon.ru%2F;cook&mod_id=3prkx8pe&script_session_id=19e2a651774.be5&ctObject=ct&uniq_req_id=177882772875234489&ctClientGlobalId= | 5 KB | — | ✓ | 3rd |
| https://smartcaptcha.cloud.yandex.ru/backend.d9627726d03678c949b5.js | 53 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 InventoryAction328 resources · 7.8 MB · 675 KB savings availableFIX
~674.9 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 328 resources | 7.8 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization123 images, 0 KB saveableREVIEW
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
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 Loading7 fonts (601 KB)PASS
Web fonts
7
601 KB total
Render-blocking
0
of 7
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
- 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
- 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 ~481 KB and ~962 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Network Waterfall328 requests over 15801msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
avilon.webim.ru avilon.webim.ru | Other | 198ms | 64 KB | — | ₽311/mo | Costly |
mod.calltouch.ru mod.calltouch.ru | Other | 120ms | 167 KB | 56% | ₽189/mo | Costly |
avilon.webim.ru avilon.webim.ru | Other | 54ms | 217 KB | 51% | ₽84/mo | Costly |
mc.yandex.ru mc.yandex.ru | Other | 53ms | 86 KB | 45% | ₽84/mo | Costly |
web-static.s.mindbox.ru web-static.s.mindbox.ru | Other | 52ms | 200 KB | 35% | ₽82/mo | Costly |
These scripts may cost more than they're worth
- avilon.webim.ru adds 198ms and costs ~₽311/month
- mod.calltouch.ru adds 120ms and costs ~₽189/month
- avilon.webim.ru adds 54ms and costs ~₽84/month
- mc.yandex.ru adds 53ms and costs ~₽84/month
- web-static.s.mindbox.ru adds 52ms and costs ~₽82/month
avilon.webim.ru takes 198ms 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
mod.calltouch.ru takes 120ms 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
56% of mod.calltouch.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
avilon.webim.ru takes 54ms 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
51% of avilon.webim.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
mc.yandex.ru takes 53ms 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
web-static.s.mindbox.ru takes 52ms 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 (2026-04-16 — 2026-05-13)
LCP (p75)
2624 ms
72% good
INP (p75)
178 ms
80% good
CLS (p75)
0.080
81% good
FCP (p75)
1789 ms
TTFB (p75)
1163 ms
Image Optimization200 images, 5 KB total, 0 KB wastedINFO
Image Optimization Audit
Total Images
200
Total Size
5 KB
Oversized
44