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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
6
REVIEW
1
PASS
8
INFO
2

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

Mobile Desktop
28
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

7.86 s

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

29.11 s

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

1.88 s

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

0.023

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

11.58 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.

31.32 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
8 PASS 1 REVIEW 6 FIX
F
Page Weight Budget
Action
5.4 MB transferred, 91 requests
FIX
5.4 MB transferred, 91 requests
Critical::
Page weighs 10.4 MB (5.4 MB transferred)
Warning::
Images are 2.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.1 MB
Info::
Fonts are 1.6 MB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 1.6 MB
Warning::
JavaScript is 1.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.5 MB
Info::
91 HTTP requests
Info::
Estimated 1.1 g CO2 per page load
5.4 MB / 2.4 MB budget
5.4 MB transferred
91 requests
1.1 g CO2 per page load
Images 2.1 MiB 39%
Fonts 1.6 MiB 29%
JavaScript 1.5 MiB 27%
Other 156.3 KiB 3%
CSS 68.3 KiB 1%
HTML 21.2 KiB 0%
Other 3.9 KiB 0%
Other 1.1 KiB 0%
Other 701 B 0%
Other 0 B 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

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

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

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 (5.4 MiB of 5.4 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
8052ms total JS execution
FIX
8052ms total JS execution
Warning::
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH...: 1893ms CPU time
Warning::
Unattributable: 1765ms CPU time
Warning::
https://www.iata.org/: 1253ms CPU time
Warning::
https://cdn.cookielaw.org/scripttemplates/202601.2...: 784ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-T88...: 607ms CPU time
Warning::
Third-party scripts: 8052ms (100% of total)

Main Thread Breakdown

Script Evaluation 49% Other 25% Style & Layout 10% Script Parsing & Compilation 8%
ScriptTotalScriptingParse/CompileParty
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc1893ms1228ms269ms3rd
Unattributable1765ms68ms0ms3rd
https://www.iata.org/1253ms97ms9ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otTCF.js784ms725ms10ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T883LZ607ms517ms77ms3rd
https://www.googletagmanager.com/gtag/js?id=G-PLLG1EY0X0&cx=c&gtm=4e64h1553ms479ms69ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js530ms356ms59ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-1048537815&cx=c&gtm=4e64h1276ms208ms66ms3rd
https://js.monitor.azure.com/scripts/b/ai.2.gbl.min.js152ms126ms12ms3rd
https://go.updates.iata.org/js/piUtils.js?ver=2021-09-20122ms81ms34ms3rd

Showing top 10 of 11 scripts

F
JS Bundles
Action
13 scripts, 591 KB unused
FIX
13 scripts, 591 KB unused
Warning::
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH...: 260 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://go.updates.iata.org/js/piUtils.js?ver=2021...: 84 KB unused (84%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-PLLG...: 68 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-104...: 64 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202601.2...: 61 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 591 KB
591 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc661 KB260 KB (39%)✓3rd
https://go.updates.iata.org/js/piUtils.js?ver=2021-09-20100 KB84 KB (84%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-PLLG1EY0X0&cx=c&gtm=4e64h1177 KB68 KB (38%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-1048537815&cx=c&gtm=4e64h1145 KB64 KB (44%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js128 KB61 KB (48%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T883LZ198 KB55 KB (28%)✓3rd
https://js.monitor.azure.com/scripts/b/ai.2.gbl.min.js46 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js9 KB—✓3rd
https://www.iata.org/Util/Find/epi-util/find.js2 KB—✓3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otTCF.js18 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

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

F
Page Weight Inventory
Action
91 resources · 5.4 MB · 591 KB savings available
FIX
91 resources · 5.4 MB · 591 KB savings available
Warning::
Page weight 4.4 MB over 1MB target
Got: 5.4 MB Expected: ≤ 1 MB
Info::
~591 KB of savings available
Warning::
90 third-party resources (100% of weight)
Info::
5 resources over 200KB
91 resources · 5.4 MiB · 90 third-party 4.4 MiB over 1MB target
Image 39% · 2.1 MiB
Font 29% · 1.6 MiB
JavaScript 27% · 1.5 MiB
Other 3% · 155.7 KiB
CSS 1% · 73.1 KiB
Document 0% · 21.2 KiB

~590.8 KiB of savings available

Remove unused JavaScript: 590.8 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
41 images, 0 KB saveable
REVIEW
41 images, 0 KB saveable
Info::
All images are well-optimized
41 images 2.1 MB
0 oversized -0 KB
35 legacy format
0 missing dimensions CLS risk
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
14 fonts (1600 KB)
PASS
14 fonts (1600 KB)
Info::
14 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

14

1600 KB total

Render-blocking

0

of 14

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 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s FCP 7.9 s LCP 29.1 shttps://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2AktivGrotesk_W_Lt.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2 — 179.4 KiB — 51 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2AktivGrotesk_W_Rg.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2 — 169.4 KiB — 60 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2AktivGrotesk_W_Md.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2 — 182.6 KiB — 77 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2AktivGrotesk_W_Bd.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2 — 176.3 KiB — 84 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woffAktivGrotesk_W_XBd.woff https://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woff — 65.0 KiB — 84 ms — font-display: swaphttps://www.iata.org/static/fonts/iataIcons.woffiataIcons.woff https://www.iata.org/static/fonts/iataIcons.woff — 12.2 KiB — 27 ms — font-display: swaphttps://www.iata.org/static/fonts/iataIcons2019.woffiataIcons2019.woff https://www.iata.org/static/fonts/iataIcons2019.woff — 3.4 KiB — 83 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mgAktivGrotesk_W_Md.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mg — 182.7 KiB — 62 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woff?v=rmazALJ4f6qEIEdzYnFE481y1mgAktivGrotesk_W_XBd.woff https://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woff?v=rmazALJ4f6qEIEdzYnFE481y1mg — 65.0 KiB — 60 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mgAktivGrotesk_W_Rg.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mg — 169.4 KiB — 65 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mgAktivGrotesk_W_Bd.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mg — 176.4 KiB — 76 ms — font-display: swaphttps://www.iata.org/static/fonts/iataIcons.woff?v=rmazALJ4f6qEIEdzYnFE481y1mgiataIcons.woff https://www.iata.org/static/fonts/iataIcons.woff?v=rmazALJ4f6qEIEdzYnFE481y1mg — 12.2 KiB — 75 ms — font-display: swaphttps://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mgAktivGrotesk_W_Lt.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2?v=rmazALJ4f6qEIEdzYnFE481y1mg — 179.3 KiB — 75 ms — font-display: swaphttps://use.typekit.net/af/ab3e12/000000000000000077359d4f/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/ab3e12/000000000000000077359d4f/30/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 26.8 KiB — 13 ms — font-display: swap
AktivGrotesk_W_Lt.woff2 woff2 swap
Size 179 KB
Load time 51 ms
Start 87 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_Rg.woff2 woff2 swap
Size 169 KB
Load time 60 ms
Start 88 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_Md.woff2 woff2 swap
Size 183 KB
Load time 77 ms
Start 88 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_Bd.woff2 woff2 swap
Size 176 KB
Load time 84 ms
Start 88 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_XBd.woff woff swap
Size 65 KB
Load time 84 ms
Start 89 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
iataIcons.woff woff swap
Size 12 KB
Load time 27 ms
Start 89 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
iataIcons2019.woff woff swap
Size 3 KB
Load time 83 ms
Start 89 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
AktivGrotesk_W_Md.woff2 woff2 swap
Size 183 KB
Load time 62 ms
Start 374 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_XBd.woff woff swap
Size 65 KB
Load time 60 ms
Start 374 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
AktivGrotesk_W_Rg.woff2 woff2 swap
Size 169 KB
Load time 65 ms
Start 375 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
AktivGrotesk_W_Bd.woff2 woff2 swap
Size 176 KB
Load time 76 ms
Start 375 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
iataIcons.woff woff swap
Size 12 KB
Load time 75 ms
Start 377 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
AktivGrotesk_W_Lt.woff2 woff2 swap
Size 179 KB
Load time 75 ms
Start 377 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
l woff2 swap
Size 27 KB
Load time 13 ms
Start 1.4 s
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)

Fixing the unchecked items could save ~755 KB and ~1510 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
8 hints, 0 missing preconnects
PASS
8 hints, 0 missing preconnects
Info::
Page uses 8 resource hint(s)

Current Resource Hints

preconnect
—
preload
8
dns-prefetch
—
prefetch
—

8 resource hints configured

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
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
91 requests over 2447ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s FCP 7.9 s LCP 29.1 shttps://iata.org// https://iata.org/ — 301 — 93 B — 26 ms — h2https://www.iata.org/www.iata.org/ https://www.iata.org/ — 200 — 18.0 KiB — 51 ms — h3https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 39 ms — h2https://www.iata.org/bundles/main.css?v=vEpkMhxSbxLvVxidmoRgRGaxmkcwww.iata.org/bundles/main.css?v=vEp... https://www.iata.org/bundles/main.css?v=vEpkMhxSbxLvVxidmoRgRGaxmkc — 200 — 65.9 KiB — 50 ms — h3https://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2www.iata.org/static/fonts/AktivGrot... https://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2 — 200 — 179.4 KiB — 51 ms — h3https://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2www.iata.org/static/fonts/AktivGrot... https://www.iata.org/static/fonts/AktivGrotesk_W_Rg.woff2 — 200 — 169.4 KiB — 60 ms — h3https://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2www.iata.org/static/fonts/AktivGrot... https://www.iata.org/static/fonts/AktivGrotesk_W_Md.woff2 — 200 — 182.6 KiB — 77 ms — h3https://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2www.iata.org/static/fonts/AktivGrot... https://www.iata.org/static/fonts/AktivGrotesk_W_Bd.woff2 — 200 — 176.3 KiB — 84 ms — h3https://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woffwww.iata.org/static/fonts/AktivGrot... https://www.iata.org/static/fonts/AktivGrotesk_W_XBd.woff — 200 — 65.0 KiB — 84 ms — h3https://www.iata.org/static/fonts/iataIcons.woffwww.iata.org/static/fonts/iataIcons... https://www.iata.org/static/fonts/iataIcons.woff — 200 — 12.2 KiB — 27 ms — h3https://www.iata.org/static/fonts/iataIcons2019.woffwww.iata.org/static/fonts/iataIcons... https://www.iata.org/static/fonts/iataIcons2019.woff — 200 — 3.4 KiB — 83 ms — h3https://www.iata.org/bundles/fonts.css?v=73vh9oLSKAPe9HqXE6CJ4Mng8uYwww.iata.org/bundles/fonts.css?v=73... https://www.iata.org/bundles/fonts.css?v=73vh9oLSKAPe9HqXE6CJ4Mng8uY — 200 — 1.2 KiB — 31 ms — h3https://www.iata.org/contentassets/3e83770142a040d688e269bb2f709b7b/iata-logo-header.svg?height=127&rmode=crop&v=20240116100112www.iata.org/contentassets/3e837701... https://www.iata.org/contentassets/3e83770142a040d688e269bb2f709b7b/iata-logo-header.svg?height=127&rmode=crop&v=20240116100112 — 200 — 1.8 KiB — 79 ms — h3https://www.iata.org/contentassets/e967af4740504e06894fd5eb47ea3576/home-page-banner.jpg?width=2560&height=600&rmode=crop&v=20260312080607www.iata.org/contentassets/e967af47... https://www.iata.org/contentassets/e967af4740504e06894fd5eb47ea3576/home-page-banner.jpg?width=2560&height=600&rmode=crop&v=20260312080607 — 200 — 32.8 KiB — 83 ms — h3https://cdn.cookielaw.org/consent/019a5f1e-5228-7434-92ab-68cc0db387b5/019a5f1e-5228-7434-92ab-68cc0db387b5.jsoncdn.cookielaw.org/consent/019a5f1e-... https://cdn.cookielaw.org/consent/019a5f1e-5228-7434-92ab-68cc0db387b5/019a5f1e-5228-7434-92ab-68cc0db387b5.json — 200 — 2.3 KiB — 34 ms — h2https://www.iata.org/contentassets/bd73077d78464a56b9ee85fd58795a97/tashkent-1.jpg?rmode=crop&v=20260421080717www.iata.org/contentassets/bd73077d... https://www.iata.org/contentassets/bd73077d78464a56b9ee85fd58795a97/tashkent-1.jpg?rmode=crop&v=20260421080717 — 200 — 209.4 KiB — 119 ms — h3https://www.iata.org/contentassets/7277f0e6ec274b4197bae33414462669/fuel.jpg?rmode=crop&v=20260417085030www.iata.org/contentassets/7277f0e6... https://www.iata.org/contentassets/7277f0e6ec274b4197bae33414462669/fuel.jpg?rmode=crop&v=20260417085030 — 200 — 98.2 KiB — 75 ms — 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https://www.google-analytics.com/g/collect?v=2&tid=G-PLLG1EY0X0&gtm=45je64h1v890028022z871611487za20gzb71611487zd71611487&_p=1776806415142&gcs=G100&gcd=13q3p3q3q5l1&npa=1&dma_cps=-&dma=1&tcfd=10s5q&gdid=dYWJhMj&ecid=1199421881&_eu=EAAAAEA&are=1&cid=1054745196.1776806417&ec_mode=a&frm=0&ir=1&pscdl=denied&rcb=3&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266400&sid=1776806416&sct=1&seg=0&dl=https%3A%2F%2Fwww.iata.org%2F&dt=IATA%20-%20Home&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=2389 — 204 — 547 B — 56 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 8052ms · 1500KB · €87/mo
www.iata.org
Other
Costly
Execution 1893ms
Transfer 661 KB
Unused 39%
Monthly Cost €21/mo
Unattributable
Other
Costly
Execution 1765ms
Transfer 0 KB
Monthly Cost €19/mo
www.iata.org
Other
Costly
Execution 1253ms
Transfer 18 KB
Monthly Cost €14/mo
OneTrust
Consent
Essential
Execution 784ms
Transfer 18 KB
Monthly Cost €9/mo
Google Tag Manager
Tag Manager
Costly
Execution 607ms
Transfer 198 KB
Unused 28%
Monthly Cost €7/mo
Google Tag Manager
Tag Manager
Costly
Execution 553ms
Transfer 177 KB
Unused 38%
Monthly Cost €6/mo
OneTrust
Consent
Essential
Execution 530ms
Transfer 128 KB
Unused 48%
Monthly Cost €6/mo
Google Tag Manager
Tag Manager
Costly
Execution 276ms
Transfer 145 KB
Unused 44%
Monthly Cost €3/mo
js.monitor.azure.com
Other
Optional
Execution 152ms
Transfer 46 KB
Monthly Cost €2/mo
go.updates.iata.org
Other
Optional
Execution 122ms
Transfer 100 KB
Unused 84%
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 118ms
Transfer 9 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.iata.org adds 1893ms and costs ~€21/month
  • Unattributable adds 1765ms and costs ~€19/month
  • www.iata.org adds 1253ms and costs ~€14/month
  • Google Tag Manager adds 607ms and costs ~€7/month
  • Google Tag Manager adds 553ms and costs ~€6/month
  • Google Tag Manager adds 276ms and costs ~€3/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.iata.org takes 1893ms 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 1765ms 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.iata.org takes 1253ms 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

Google Tag Manager takes 607ms 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

Google Tag Manager takes 553ms 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

Google Tag Manager takes 276ms 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

84% of go.updates.iata.org'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.

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