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https://president.gov.ua

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
77
GRADE
C
FIX
2
REVIEW
6
PASS
5
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
63
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

653 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.49 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

59 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.273

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.93 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.

2.49 s

Page Load Progression

1.0 s
2.1 s
3.1 s
4.1 s
5.2 s
6.2 s
7.2 s
8.3 s
Checks
15
5 PASS 6 REVIEW 2 FIX
D
Third-Party Impact
Action
66% third-party, 0 ms blocking
FIX
66% third-party, 0 ms blocking
Warning::
Third-party code accounts for 66% of page weight (1.3 MiB of 1.9 MiB)
Info::
Third-party blocking time is low (0 ms)
34%
66%
First-party Third-party
D
Page Weight Inventory
Action
52 resources · 1.9 MB · 212 KB savings available
FIX
52 resources · 1.9 MB · 212 KB savings available
Warning::
Page weight 917 KB over 1MB target
Got: 1.9 MB Expected: ≤ 1 MB
Info::
~212 KB of savings available
Warning::
31 third-party resources (66% of weight)
Info::
1 resources over 200KB
52 resources · 1.9 MiB · 31 third-party 917.1 KiB over 1MB target
Image 53% · 1.0 MiB
JavaScript 30% · 573.4 KiB
Font 14% · 268.2 KiB
CSS 2% · 43.3 KiB
Document 1% · 17.5 KiB
Other 0% · 2.8 KiB

~212.0 KiB of savings available

Remove unused JavaScript: 212.0 KiB
C
Page Weight Budget
Action
1.9 MB transferred, 52 requests
REVIEW
1.9 MB transferred, 52 requests
Info::
Page weighs 3.6 MB (1.9 MB transferred)
Warning::
Images are 1.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.0 MB
Warning::
JavaScript is 573 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 573 KB
Info::
Fonts are 268 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 268 KB
Info::
52 HTTP requests
Info::
Estimated 0.40 g CO2 per page load
1.9 MB / 2.4 MB budget
1.9 MB transferred
52 requests
0.40 g CO2 per page load
Images 1.0 MiB 53%
JavaScript 573.4 KiB 30%
Fonts 268.2 KiB 14%
CSS 43.3 KiB 2%
HTML 17.5 KiB 1%
Other 1.8 KiB 0%
Other 1.0 KiB 0%
Other 784 B 0%
Other 549 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

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.

Why this matters

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.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

B
Image Optimization
20 images, 0 KB saveable
REVIEW
20 images, 0 KB saveable
Warning::
https://president.gov.ua/images/emblem.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
20 images 1.0 MB
0 oversized -0 KB
20 legacy format
1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Execution Cost
716ms total JS execution
REVIEW
716ms total JS execution
Warning::
https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/Qt...: 254ms CPU time
Info::
Unattributable: 184ms CPU time
Info::
https://president.gov.ua/: 122ms CPU time
Info::
https://president.gov.ua/js/plugins/jquery.min.js: 86ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-P1HM...: 70ms CPU time
Info::
Third-party scripts: 254ms (36% of total)

Main Thread Breakdown

Script Evaluation 58% Other 17% Style & Layout 9% Script Parsing & Compilation 8% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/QtY50Jah/dHE3Ag/Ugg3CmI/7MBwQAg?v=b6e1217c-4854-f3d9-ee9d-ec66b42a0214254ms234ms15ms1st
Unattributable184ms63ms0ms3rd
https://president.gov.ua/122ms4ms1ms1st
https://president.gov.ua/js/plugins/jquery.min.js86ms52ms3ms1st
https://www.googletagmanager.com/gtag/js?id=G-P1HMN8Z0TY&cx=c&_slc=170ms53ms15ms3rd
C
JS Bundles
Action
14 scripts, 212 KB unused
REVIEW
14 scripts, 212 KB unused
Warning::
https://president.gov.ua/js/all_scripts.min.js: 88 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-P1HM...: 65 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://s.go-mpulse.net/boomerang/YD2KP-D2EK2-5M9V...: 32 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/Qt...: 27 KB unused (19%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 212 KB
212 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://president.gov.ua/js/all_scripts.min.js107 KB88 KB (82%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-P1HMN8Z0TY&cx=c&_slc=1163 KB65 KB (40%)✓3rd
https://s.go-mpulse.net/boomerang/YD2KP-D2EK2-5M9V5-A6FV5-KYTJ557 KB32 KB (56%)✓3rd
https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/QtY50Jah/dHE3Ag/Ugg3CmI/7MBwQAg?v=b6e1217c-4854-f3d9-ee9d-ec66b42a0214147 KB27 KB (19%)✓1st
https://president.gov.ua/js/script_additional.js1 KB—✓1st
https://president.gov.ua/js/script.js8 KB—✓1st
https://president.gov.ua/js/plugins/jquery.min.js32 KB—✓1st
https://president.gov.ua/js/menubar.js5 KB—✗1st
https://president.gov.ua/js/share-selected-text.js3 KB—✓1st
https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/Qt/RkMHAg/XmlkAA9/vewAq27 KB—✓1st

Consider code splitting or tree shaking to reduce unused code.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
3 fonts (268 KB)
PASS
3 fonts (268 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

268 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 653 ms LCP 2.5 shttps://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0fontawesome-webfont.ttf https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0 — 96.3 KiB — 41 ms — font-display: swaphttps://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0fontawesome-webfont.woff2 https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0 — 75.8 KiB — 48 ms — font-display: swaphttps://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0fontawesome-webfont.woff https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0 — 96.1 KiB — 48 ms — font-display: swap
fontawesome-webfont.ttf unknown swap
Size 96 KB
Load time 41 ms
Start 6.7 s
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont.woff2 unknown swap
Size 76 KB
Load time 48 ms
Start 6.7 s
Risk FOUT — text flashes from fallback to web font
fontawesome-webfont.woff woff swap
Size 96 KB
Load time 48 ms
Start 6.7 s
Risk FOUT — text flashes from fallback to web font
  • 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 ~80 KB and ~160 ms

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
Network Waterfall
52 requests over 8360ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 653 ms LCP 2.5 shttps://president.gov.ua// https://president.gov.ua/ — 200 — 17.5 KiB — 6.6 s — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0 — 200 — 96.3 KiB — 41 ms — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0 — 200 — 75.8 KiB — 48 ms — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0 — 200 — 96.1 KiB — 48 ms — h2https://president.gov.ua/fonts/font-awesome-4.7.0/css/font-awesome.min.css/fonts/font-awesome-4.7.0/css/font-... https://president.gov.ua/fonts/font-awesome-4.7.0/css/font-awesome.min.css — 200 — 6.9 KiB — 22 ms — h2https://www.president.gov.ua/css/style.min.csswww.president.gov.ua/css/style.min.... https://www.president.gov.ua/css/style.min.css — 200 — 26.0 KiB — 129 ms — h2https://www.president.gov.ua/css/style_additional.csswww.president.gov.ua/css/style_addi... https://www.president.gov.ua/css/style_additional.css — 200 — 4.9 KiB — 129 ms — h2https://www.president.gov.ua/css/menubar.csswww.president.gov.ua/css/menubar.cs... https://www.president.gov.ua/css/menubar.css — 200 — 802 B — 143 ms — h2https://president.gov.ua/css/share-selected-text.min.css/css/share-selected-text.min.css https://president.gov.ua/css/share-selected-text.min.css — 200 — 971 B — 23 ms — h2https://president.gov.ua/js/plugins/jquery.min.js/js/plugins/jquery.min.js https://president.gov.ua/js/plugins/jquery.min.js — 200 — 32.2 KiB — 43 ms — h2https://president.gov.ua/images/emblem.svg/images/emblem.svg https://president.gov.ua/images/emblem.svg — 200 — 17.6 KiB — 44 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/61/45/6b6aa900f6c2871d4d9f08cd764789a3_1776793661_slider_large.pngwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/61/45/6b6aa900f6c2871d4d9f08cd764789a3_1776793661_slider_large.png — 200 — 356.2 KiB — 328 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/60/69/c73fad5db5553a091bbe2b0ecbc7b174_1776781846_slider_large.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/60/69/c73fad5db5553a091bbe2b0ecbc7b174_1776781846_slider_large.jpeg — 200 — 74.1 KiB — 218 ms — h2https://s.go-mpulse.net/boomerang/YD2KP-D2EK2-5M9V5-A6FV5-KYTJ5s.go-mpulse.net/boomerang/YD2KP-D2E... https://s.go-mpulse.net/boomerang/YD2KP-D2EK2-5M9V5-A6FV5-KYTJ5 — 200 — 56.8 KiB — 35 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/59/53/7723e4facceb69ad9723a9e6b2978423_1776441946_slider_large.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/59/53/7723e4facceb69ad9723a9e6b2978423_1776441946_slider_large.jpeg — 200 — 43.0 KiB — 1.3 s — h2https://www.president.gov.ua/storage/j-image-storage/57/58/93/67a1af60a915e36b698227ad59d0bb20_1776427100_slider_large.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/58/93/67a1af60a915e36b698227ad59d0bb20_1776427100_slider_large.jpeg — 200 — 50.8 KiB — 161 ms — h2https://president.gov.ua/js/plugins/toastr/toastr.min.css?v=1/js/plugins/toastr/toastr.min.css?v... https://president.gov.ua/js/plugins/toastr/toastr.min.css?v=1 — 200 — 2.8 KiB — 30 ms — h2https://president.gov.ua/js/all_scripts.min.js/js/all_scripts.min.js https://president.gov.ua/js/all_scripts.min.js — 200 — 107.1 KiB — 69 ms — h2https://president.gov.ua/packages/yaro/soc-share/soc-share.js/packages/yaro/soc-share/soc-share.... https://president.gov.ua/packages/yaro/soc-share/soc-share.js — 200 — 633 B — 60 ms — h2https://president.gov.ua/js/app.js/js/app.js https://president.gov.ua/js/app.js — 200 — 1.2 KiB — 61 ms — h2https://president.gov.ua/js/script.js/js/script.js https://president.gov.ua/js/script.js — 200 — 7.7 KiB — 63 ms — h2https://president.gov.ua/js/script_additional.js/js/script_additional.js https://president.gov.ua/js/script_additional.js — 200 — 1.4 KiB — 65 ms — h2https://president.gov.ua/js/menubar.js/js/menubar.js https://president.gov.ua/js/menubar.js — 200 — 5.0 KiB — 72 ms — h2https://president.gov.ua/js/share-selected-text.js/js/share-selected-text.js https://president.gov.ua/js/share-selected-text.js — 200 — 2.8 KiB — 74 ms — h2https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/Qt/RkMHAg/Ky9oKzR/pUA9Z/rDiL/Dwbl/3SV/Voa/VLZw/Qt/RkMHAg/K... https://president.gov.ua/rDiL/Dwbl/3SV/Voa/VLZw/Qt/RkMHAg/Ky9oKzR/pUA9Z — 200 — 992 B — 39 ms — h2https://president.gov.ua/images/logo.png/images/logo.png https://president.gov.ua/images/logo.png — 200 — 9.9 KiB — 75 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/54/61/3771a9773bfba11487b4b2b05560173a_1776354967_slider_large.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/54/61/3771a9773bfba11487b4b2b05560173a_1776354967_slider_large.jpeg — 200 — 56.3 KiB — 391 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/61/45/6b6aa900f6c2871d4d9f08cd764789a3_1776793661_medium.pngwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/61/45/6b6aa900f6c2871d4d9f08cd764789a3_1776793661_medium.png — 200 — 133.2 KiB — 139 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/58/25/74f13ffce28b425514fa66c78b5c12b6_1776424437_medium.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/58/25/74f13ffce28b425514fa66c78b5c12b6_1776424437_medium.jpeg — 200 — 22.5 KiB — 106 ms — h2https://www.president.gov.ua/storage/j-image-storage/57/60/69/c73fad5db5553a091bbe2b0ecbc7b174_1776781846_small.jpegwww.president.gov.ua/storage/j-imag... https://www.president.gov.ua/storage/j-image-storage/57/60/69/c73fad5db5553a091bbe2b0ecbc7b174_1776781846_small.jpeg — 200 — 23.8 KiB — 308 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 653 ms LCP 2.5 shttps://president.gov.ua// https://president.gov.ua/ — 200 — 17.5 KiB — 6.6 s — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.ttf?v=4.7.0 — 200 — 96.3 KiB — 41 ms — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0 — 200 — 75.8 KiB — 48 ms — h2https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0/fonts/font-awesome-4.7.0/fonts/fon... https://president.gov.ua/fonts/font-awesome-4.7.0/fonts/fontawesome-webfont.woff?v=4.7.0 — 200 — 96.1 KiB — 48 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
36% of JavaScript execution is third-party
First-party Third-party 254ms · 163KB · ₴141/mo
Unattributable
Other
Costly
Execution 184ms
Transfer 0 KB
Monthly Cost ₴102/mo
Google Tag Manager
Tag Manager
Optional
Execution 70ms
Transfer 163 KB
Unused 40%
Monthly Cost ₴39/mo

These scripts may cost more than they're worth

  • Unattributable adds 184ms and costs ~₴102/month

Unattributable takes 184ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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