Skip to content
https://icao.int

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
5
REVIEW
3
PASS
7
INFO
2

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

Mobile Desktop
56
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.
92
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.

3.60 s

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

10.52 s

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

298 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.

6.30 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.

25.72 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 s
Checks
17
7 PASS 3 REVIEW 5 FIX
F
Page Weight Budget
Action
8.9 MB transferred, 61 requests
FIX
8.9 MB transferred, 61 requests
Critical::
Page weighs 9.7 MB (8.9 MB transferred)
Warning::
Images are 8.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 8.6 MB
Info::
61 HTTP requests
Info::
Estimated 1.9 g CO2 per page load
8.9 MB / 2.4 MB budget
8.9 MB transferred
61 requests
1.9 g CO2 per page load
Images 8.6 MiB 97%
JavaScript 155.8 KiB 2%
CSS 75.9 KiB 1%
Fonts 46.0 KiB 1%
HTML 15.6 KiB 0%
Other 9.8 KiB 0%
0 2.4 MB 4.9 MB
Over budget

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

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (8.9 MiB of 8.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
3597ms total JS execution
FIX
3597ms total JS execution
Warning::
https://www.icao.int/: 1240ms CPU time
Warning::
https://www.icao.int/sites/default/files/js/js_XpG...: 1135ms CPU time
Warning::
Unattributable: 992ms CPU time
Info::
https://static.addtoany.com/menu/page.js: 77ms CPU time
Info::
https://www.icao.int/sites/default/files/js/js_Lbk...: 77ms CPU time
Warning::
Third-party scripts: 3597ms (100% of total)

Main Thread Breakdown

Other 38% Style & Layout 28% Script Evaluation 23% Rendering 5% Parse HTML & CSS 5%
ScriptTotalScriptingParse/CompileParty
https://www.icao.int/1240ms29ms2ms3rd
https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX1135ms646ms4ms3rd
Unattributable992ms22ms0ms3rd
https://static.addtoany.com/menu/page.js77ms42ms1ms3rd
https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX77ms32ms40ms3rd
https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.176ms57ms16ms3rd
D
Page Weight Inventory
Action
61 resources · 8.9 MB · 66 KB savings available
FIX
61 resources · 8.9 MB · 66 KB savings available
Warning::
Page weight 7.9 MB over 1MB target
Got: 8.9 MB Expected: ≤ 1 MB
Info::
~66 KB of savings available
Warning::
60 third-party resources (100% of weight)
Info::
9 resources over 200KB
61 resources · 8.9 MiB · 60 third-party 7.9 MiB over 1MB target
Image 97% · 8.6 MiB
JavaScript 2% · 155.8 KiB
CSS 1% · 75.9 KiB
Font 1% · 46.0 KiB
Document 0% · 15.8 KiB

~65.9 KiB of savings available

Remove unused JavaScript: 65.9 KiB
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
42 images, 0 KB saveable
REVIEW
42 images, 0 KB saveable
Info::
All images are well-optimized
42 images 8.6 MB
0 oversized -0 KB
41 legacy format
0 missing dimensions CLS risk
B
JS Bundles
7 scripts, 66 KB unused
REVIEW
7 scripts, 66 KB unused
Warning::
https://www.icao.int/sites/default/files/js/js_Lbk...: 45 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.addtoany.com/menu/modules/core.ydpp...: 21 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 66 KB
66 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX69 KB45 KB (65%)✓3rd
https://static.addtoany.com/menu/modules/core.ydpp7jcu.js26 KB21 KB (82%)✓3rd
https://www.icao.int/sites/default/files/js/js_cJ1ZtYMrqAVzwa2llwTHfn4qLOuy8nz5RhL8wl-QGaU.js?scope=header&delta=0&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX0 KB—✓3rd
https://www.icao.int/libraries/klaro/dist/klaro-no-translations-no-css.js?tdl11c23 KB—✓3rd
https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.131 KB—✓3rd
https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX5 KB—✓3rd
https://static.addtoany.com/menu/page.js2 KB—✓3rd

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

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 (46 KB)
PASS
3 fonts (46 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

46 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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.6 s LCP 10.5 shttps://fonts.gstatic.com/s/barlow/v13/7cHpv4kjgoGqM7E_DMs5ynghnQ.woff27cHpv4kjgoGqM7E_DMs5yng... https://fonts.gstatic.com/s/barlow/v13/7cHpv4kjgoGqM7E_DMs5ynghnQ.woff2 — 15.3 KiB — 10 ms — font-display: swaphttps://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3t-4s51ostz0rdg.woff27cHqv4kjgoGqM7E3t-4s51o... https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3t-4s51ostz0rdg.woff2 — 15.4 KiB — 14 ms — font-display: swaphttps://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3_-gs51ostz0rdg.woff27cHqv4kjgoGqM7E3_-gs51o... https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3_-gs51ostz0rdg.woff2 — 15.3 KiB — 17 ms — font-display: swap
7cHpv4kjgoGqM7E_DMs5yng... woff2 swap
Size 15 KB
Load time 10 ms
Start 700 ms
Risk FOUT — text flashes from fallback to web font
7cHqv4kjgoGqM7E3t-4s51o... woff2 swap
Size 15 KB
Load time 14 ms
Start 700 ms
Risk FOUT — text flashes from fallback to web font
7cHqv4kjgoGqM7E3_-gs51o... woff2 swap
Size 15 KB
Load time 17 ms
Start 701 ms
Risk FOUT — text flashes from fallback to web font
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 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
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
61 requests over 1630ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.6 s LCP 10.5 shttps://icao.int// https://icao.int/ — 301 — 189 B — 74 ms — http/1.1https://www.icao.int/www.icao.int/ https://www.icao.int/ — 200 — 14.6 KiB — 472 ms — h2https://www.icao.int/sites/default/files/css/css_ja2WRNluDerODjF6tdmyYpf_QilPiTjAb050qyaYbCc.css?delta=0&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css_ja2WRNluDerODjF6tdmyYpf_QilPiTjAb050qyaYbCc.css?delta=0&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 7.0 KiB — 18 ms — h2https://www.icao.int/sites/default/files/css/css_eRCDdTzx0YcvVspAPPgvkJTVZ3N3ttzyjDgCDi7Ra_4.css?delta=1&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css_eRCDdTzx0YcvVspAPPgvkJTVZ3N3ttzyjDgCDi7Ra_4.css?delta=1&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 58.9 KiB — 36 ms — h2https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap — 200 — 1.8 KiB — 57 ms — h2https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swapfonts.googleapis.com/css2?family=Ba... https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swap — 200 — 1.2 KiB — 44 ms — h2https://www.icao.int/sites/default/files/css/css__cHEUnSfJsZ9MDAQmYfkSf-Vc4huA13Y46_HHL6B_YY.css?delta=4&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css__cHEUnSfJsZ9MDAQmYfkSf-Vc4huA13Y46_HHL6B_YY.css?delta=4&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 7.1 KiB — 31 ms — h2https://www.icao.int/sites/default/files/js/js_cJ1ZtYMrqAVzwa2llwTHfn4qLOuy8nz5RhL8wl-QGaU.js?scope=header&delta=0&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_cJ1ZtYMrqAVzwa2llwTHfn4qLOuy8nz5RhL8wl-QGaU.js?scope=header&delta=0&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 317 B — 31 ms — h2https://www.icao.int/sites/default/files/logo.svgwww.icao.int/sites/default/files/lo... https://www.icao.int/sites/default/files/logo.svg — 200 — 24.8 KiB — 25 ms — h2https://www.icao.int/libraries/klaro/dist/klaro-no-translations-no-css.js?tdl11cwww.icao.int/libraries/klaro/dist/k... https://www.icao.int/libraries/klaro/dist/klaro-no-translations-no-css.js?tdl11c — 200 — 22.9 KiB — 26 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-1.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-1.png — 200 — 103.8 KiB — 31 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-2_0.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-2_0.png — 200 — 79.0 KiB — 24 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-3.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-3.png — 200 — 101.6 KiB — 31 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-4.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-4.png — 200 — 111.1 KiB — 50 ms — h2https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1www.icao.int/core/assets/vendor/jqu... https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1 — 200 — 30.5 KiB — 48 ms — h2https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 4.9 KiB — 44 ms — h2https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 68.8 KiB — 72 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-5.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-5.png — 200 — 102.4 KiB — 56 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-6.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-6.png — 200 — 60.3 KiB — 56 ms — h2https://static.addtoany.com/menu/page.jsstatic.addtoany.com/menu/page.js https://static.addtoany.com/menu/page.js — 200 — 2.2 KiB — 46 ms — h3https://www.icao.int/themes/custom/icao/components/layouts/header/img/logos/site-logo-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/logos/site-logo-white.svg — 200 — 24.9 KiB — 42 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white.svg — 200 — 379 B — 43 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white-lg.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white-lg.svg — 200 — 417 B — 38 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/menu-burger-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/menu-burger-white.svg — 200 — 359 B — 45 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/shopping-cart.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/shopping-cart.svg — 200 — 1.2 KiB — 41 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-blue.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-blue.svg — 200 — 352 B — 43 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-white.svg — 200 — 342 B — 46 ms — h2https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-up-circle.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-up-circle.svg — 200 — 499 B — 48 ms — h2https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-down-circle.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-down-circle.svg — 200 — 533 B — 50 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/footer/img/socialicon.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/footer/img/socialicon.svg — 200 — 16.7 KiB — 42 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 3.6 s LCP 10.5 shttps://icao.int// https://icao.int/ — 301 — 189 B — 74 ms — http/1.1https://www.icao.int/www.icao.int/ https://www.icao.int/ — 200 — 14.6 KiB — 472 ms — h2https://www.icao.int/sites/default/files/css/css_ja2WRNluDerODjF6tdmyYpf_QilPiTjAb050qyaYbCc.css?delta=0&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css_ja2WRNluDerODjF6tdmyYpf_QilPiTjAb050qyaYbCc.css?delta=0&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 7.0 KiB — 18 ms — h2https://www.icao.int/sites/default/files/css/css_eRCDdTzx0YcvVspAPPgvkJTVZ3N3ttzyjDgCDi7Ra_4.css?delta=1&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css_eRCDdTzx0YcvVspAPPgvkJTVZ3N3ttzyjDgCDi7Ra_4.css?delta=1&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 58.9 KiB — 36 ms — h2https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swapfonts.googleapis.com/css2?family=Op... https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap — 200 — 1.8 KiB — 57 ms — h2https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swapfonts.googleapis.com/css2?family=Ba... https://fonts.googleapis.com/css2?family=Barlow:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&display=swap — 200 — 1.2 KiB — 44 ms — h2https://www.icao.int/sites/default/files/css/css__cHEUnSfJsZ9MDAQmYfkSf-Vc4huA13Y46_HHL6B_YY.css?delta=4&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4www.icao.int/sites/default/files/cs... https://www.icao.int/sites/default/files/css/css__cHEUnSfJsZ9MDAQmYfkSf-Vc4huA13Y46_HHL6B_YY.css?delta=4&language=en&theme=icao&include=eJxlkNGOAyEIRX9oHJ_6QaiMS4oyAaeN-_Xr1iZ1sy_kcCDhBkipCdTu4Q37oVLbFkSaNYXz5gMYrn1BM8hoWxRFn_Q6gXdqWByTtWmraAGmb9wogvgImhxDl6tNkVkCsLPWmWqe7ksKfsgBqRsHj4PiYis-bWl_IzXMFF0W4PeEoSaLcKL7d5cpKGh3IPZXGFO8TzUwoa7sAtQ61J1Bxb_qyk4eqDoWN-s2_jA_9qAR1b_qXiRdjD-TTYo4 — 200 — 7.1 KiB — 31 ms — h2https://www.icao.int/sites/default/files/js/js_cJ1ZtYMrqAVzwa2llwTHfn4qLOuy8nz5RhL8wl-QGaU.js?scope=header&delta=0&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_cJ1ZtYMrqAVzwa2llwTHfn4qLOuy8nz5RhL8wl-QGaU.js?scope=header&delta=0&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 317 B — 31 ms — h2https://www.icao.int/sites/default/files/logo.svgwww.icao.int/sites/default/files/lo... https://www.icao.int/sites/default/files/logo.svg — 200 — 24.8 KiB — 25 ms — h2https://www.icao.int/libraries/klaro/dist/klaro-no-translations-no-css.js?tdl11cwww.icao.int/libraries/klaro/dist/k... https://www.icao.int/libraries/klaro/dist/klaro-no-translations-no-css.js?tdl11c — 200 — 22.9 KiB — 26 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-1.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-1.png — 200 — 103.8 KiB — 31 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-2_0.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-2_0.png — 200 — 79.0 KiB — 24 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-3.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-3.png — 200 — 101.6 KiB — 31 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-4.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-4.png — 200 — 111.1 KiB — 50 ms — h2https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1www.icao.int/core/assets/vendor/jqu... https://www.icao.int/core/assets/vendor/jquery/jquery.min.js?v=4.0.0-rc.1 — 200 — 30.5 KiB — 48 ms — h2https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_XpGo-7YnhWYD3bY-9f3n3Hr1vsXkkqzwci3L6cI2qBc.js?scope=footer&delta=1&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 4.9 KiB — 44 ms — h2https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rXwww.icao.int/sites/default/files/js... https://www.icao.int/sites/default/files/js/js_LbkFMHu_WHmpwebeqTN0k7K0KxtdVxijtLI4MG7o1Lo.js?scope=footer&delta=3&language=en&theme=icao&include=eJxdjksOwyAMRC8EYdXzVMMnlMTBEThquX1pEyltFh69eZYsw3th5GZwwDAWzqIss1QpWG_mRD1VTZBQRUXmSOEuiCb2uPYBE17_clHJgY1D8f1I4012EYktSFdplHLc3YOXcJLO4Vl_6ucZCTE5HRl0bCjZgtI0-CIqJTfvqqMPRVvkHIqaCYXNN1VdsfTJhu24VdfPvwH3-2rX — 200 — 68.8 KiB — 72 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-5.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-5.png — 200 — 102.4 KiB — 56 ms — h2https://www.icao.int/sites/default/files/2025-09/GOAL-6.pngwww.icao.int/sites/default/files/20... https://www.icao.int/sites/default/files/2025-09/GOAL-6.png — 200 — 60.3 KiB — 56 ms — h2https://static.addtoany.com/menu/page.jsstatic.addtoany.com/menu/page.js https://static.addtoany.com/menu/page.js — 200 — 2.2 KiB — 46 ms — h3https://www.icao.int/themes/custom/icao/components/layouts/header/img/logos/site-logo-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/logos/site-logo-white.svg — 200 — 24.9 KiB — 42 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white.svg — 200 — 379 B — 43 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white-lg.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/search-icon-white-lg.svg — 200 — 417 B — 38 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/menu-burger-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/menu-burger-white.svg — 200 — 359 B — 45 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/shopping-cart.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/shopping-cart.svg — 200 — 1.2 KiB — 41 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-blue.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-blue.svg — 200 — 352 B — 43 ms — h2https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/elements/buttons/img/arrow-white.svg — 200 — 342 B — 46 ms — h2https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-up-circle.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-up-circle.svg — 200 — 499 B — 48 ms — h2https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-down-circle.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/pages/others/home/air-traffic/img/arrow-down-circle.svg — 200 — 533 B — 50 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/footer/img/socialicon.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/footer/img/socialicon.svg — 200 — 16.7 KiB — 42 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-10/2026GISS-Rotators-EN-V2.png?itok=t8m5Ni63www.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-10/2026GISS-Rotators-EN-V2.png?itok=t8m5Ni63 — 200 — 1.0 MiB — 71 ms — h2https://www.icao.int/sites/default/files/styles/home_news_fallback/public/2026-04/p-3-cover-oldjpg_0.jpg?itok=xro_iBfBwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_news_fallback/public/2026-04/p-3-cover-oldjpg_0.jpg?itok=xro_iBfB — 200 — 246.6 KiB — 65 ms — h2https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/p-3-cover-oldjpg_0.jpg?itok=ILuhVCyrwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/p-3-cover-oldjpg_0.jpg?itok=ILuhVCyr — 200 — 116.2 KiB — 69 ms — h2https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/Edited-Canva.jpg?itok=iGkDQtRpwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/Edited-Canva.jpg?itok=iGkDQtRp — 200 — 155.6 KiB — 75 ms — h2https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/UK-Photo2.jpg?itok=y1NiH8Hjwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/UK-Photo2.jpg?itok=y1NiH8Hj — 200 — 117.2 KiB — 80 ms — h2https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/Photo-2-002.jpg?itok=xrsGVfubwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_news_bottom_fallback/public/2026-04/Photo-2-002.jpg?itok=xrsGVfub — 200 — 153.0 KiB — 84 ms — h2https://fonts.gstatic.com/s/barlow/v13/7cHpv4kjgoGqM7E_DMs5ynghnQ.woff2fonts.gstatic.com/s/barlow/v13/7cHp... https://fonts.gstatic.com/s/barlow/v13/7cHpv4kjgoGqM7E_DMs5ynghnQ.woff2 — 200 — 15.3 KiB — 10 ms — h3https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3t-4s51ostz0rdg.woff2fonts.gstatic.com/s/barlow/v13/7cHq... https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3t-4s51ostz0rdg.woff2 — 200 — 15.4 KiB — 14 ms — h3https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3_-gs51ostz0rdg.woff2fonts.gstatic.com/s/barlow/v13/7cHq... https://fonts.gstatic.com/s/barlow/v13/7cHqv4kjgoGqM7E3_-gs51ostz0rdg.woff2 — 200 — 15.3 KiB — 17 ms — h3https://static.addtoany.com/menu/modules/core.ydpp7jcu.jsstatic.addtoany.com/menu/modules/co... https://static.addtoany.com/menu/modules/core.ydpp7jcu.js — 200 — 26.2 KiB — 32 ms — h3https://static.addtoany.com/menu/sm.25.htmlstatic.addtoany.com/menu/sm.25.html https://static.addtoany.com/menu/sm.25.html — 200 — 1007 B — 19 ms — h3https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-blue-right.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-blue-right.svg — 200 — 343 B — 13 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-white-left.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-white-left.svg — 200 — 358 B — 13 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-white-right.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/arrow-white-right.svg — 200 — 350 B — 13 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/header/img/external-link.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/header/img/external-link.svg — 200 — 1.1 KiB — 23 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-left-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-left-white.svg — 200 — 359 B — 15 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-right-white.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-right-white.svg — 200 — 409 B — 17 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-left-blue.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-left-blue.svg — 200 — 354 B — 14 ms — h2https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-right-blue.svgwww.icao.int/themes/custom/icao/com... https://www.icao.int/themes/custom/icao/components/layouts/slider/img/arrow-right-blue.svg — 200 — 352 B — 16 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/CALAF2026/2026CALAF2_EN.png?itok=vjGKa-WKwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/CALAF2026/2026CALAF2_EN.png?itok=vjGKa-WK — 200 — 448.0 KiB — 62 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2026-02/2026-ClimateWeek_RotatorBanner_1920x474_EN.png?itok=0oxxSsyzwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2026-02/2026-ClimateWeek_RotatorBanner_1920x474_EN.png?itok=0oxxSsyz — 200 — 64.6 KiB — 41 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/TRIP2026/TRIP2026_RotatorBanner_1920x474_EN.jpg?itok=9rFawsWKwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/TRIP2026/TRIP2026_RotatorBanner_1920x474_EN.jpg?itok=9rFawsWK — 200 — 826.7 KiB — 241 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/ATFM2026/2026ATFM_EN.png?itok=GQcqdG-Twww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/ATFM2026/2026ATFM_EN.png?itok=GQcqdG-T — 200 — 1.2 MiB — 267 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/At-Conf7/2026-ATConf-Rotator-EN-1920X474-V2.png?itok=_RhLOrciwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/At-Conf7/2026-ATConf-Rotator-EN-1920X474-V2.png?itok=_RhLOrci — 200 — 181.4 KiB — 77 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/AAM2026/2026AAM_V4_EN.png?itok=lRAdAvdfwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/HomepageBanner/AAM2026/2026AAM_V4_EN.png?itok=lRAdAvdf — 200 — 1.6 MiB — 169 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-06/2025-ICAOTV_rotator-1920X474-EN.png?itok=UjpSGa5Owww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-06/2025-ICAOTV_rotator-1920X474-EN.png?itok=UjpSGa5O — 200 — 581.1 KiB — 189 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-09/Secondment-Opportunities-EN-Rotators-1920X474-Final2_0.png?itok=44_yNUYFwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-09/Secondment-Opportunities-EN-Rotators-1920X474-Final2_0.png?itok=44_yNUYF — 200 — 646.8 KiB — 219 ms — h2https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-06/RosterExperts-EN-Rotating-Banner-1920X474-V1_0.png?itok=rYIma0Ktwww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_banner_slide_fallback/public/2025-06/RosterExperts-EN-Rotating-Banner-1920X474-V1_0.png?itok=rYIma0Kt — 200 — 539.1 KiB — 174 ms — h2https://www.icao.int/sites/default/files/styles/home_featured_general_fallback/public/2025-03/Read-our-latest-ICAO.png?itok=z8Na3_Vawww.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_featured_general_fallback/public/2025-03/Read-our-latest-ICAO.png?itok=z8Na3_Va — 200 — 198.1 KiB — 369 ms — h2https://www.icao.int/sites/default/files/styles/home_featured_general_fallback/public/2025-04/capacity.png.webp?itok=MvdwnY6_www.icao.int/sites/default/files/st... https://www.icao.int/sites/default/files/styles/home_featured_general_fallback/public/2025-04/capacity.png.webp?itok=MvdwnY6_ — 200 — 4.6 KiB — 318 ms — h2https://www.icao.int/sites/default/files/favicon%20%282%29.icowww.icao.int/sites/default/files/fa... https://www.icao.int/sites/default/files/favicon%20%282%29.ico — 200 — 9.6 KiB — 14 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 3597ms · 121KB · CA$50/mo
www.icao.int
Other
Costly
Execution 1240ms
Transfer 15 KB
Monthly Cost CA$17/mo
www.icao.int
Other
Costly
Execution 1135ms
Transfer 5 KB
Monthly Cost CA$16/mo
Unattributable
Other
Costly
Execution 992ms
Transfer 0 KB
Monthly Cost CA$14/mo
static.addtoany.com
Other
Optional
Execution 77ms
Transfer 2 KB
Monthly Cost CA$1/mo
www.icao.int
Other
Optional
Execution 77ms
Transfer 69 KB
Unused 65%
Monthly Cost CA$1/mo
www.icao.int
Other
Optional
Execution 76ms
Transfer 31 KB
Monthly Cost CA$1/mo

These scripts may cost more than they're worth

  • www.icao.int adds 1240ms and costs ~CA$17/month
  • www.icao.int adds 1135ms and costs ~CA$16/month
  • Unattributable adds 992ms and costs ~CA$14/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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.icao.int takes 1240ms 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

www.icao.int takes 1135ms 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

Unattributable takes 992ms 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

65% of www.icao.int's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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.

Send Feedback