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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
69
GRADE
D
FIX
5
REVIEW
2
PASS
6
INFO
2

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

Mobile Desktop
61
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

1.62 s

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

3.98 s

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

176 ms

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

0.004

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

3.54 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.

6.10 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
15
6 PASS 2 REVIEW 5 FIX
F
Page Weight Budget
Action
5.9 MB transferred, 96 requests
FIX
5.9 MB transferred, 96 requests
Critical::
Page weighs 10.9 MB (5.9 MB transferred)
Warning::
Images are 2.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.6 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::
96 HTTP requests
Info::
Estimated 1.2 g CO2 per page load
5.9 MB / 2.4 MB budget
5.9 MB transferred
96 requests
1.2 g CO2 per page load
Images 2.6 MiB 44%
Fonts 1.6 MiB 27%
JavaScript 1.5 MiB 25%
Other 156.3 KiB 3%
CSS 68.4 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 (5.9 MiB of 5.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
13 scripts, 589 KB unused
FIX
13 scripts, 589 KB unused
Warning::
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH...: 259 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...: 66 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: 589 KB
589 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc661 KB259 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 KB66 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
96 resources · 5.9 MB · 589 KB savings available
FIX
96 resources · 5.9 MB · 589 KB savings available
Warning::
Page weight 4.9 MB over 1MB target
Got: 5.9 MB Expected: ≤ 1 MB
Info::
~589 KB of savings available
Warning::
95 third-party resources (100% of weight)
Info::
5 resources over 200KB
96 resources · 5.9 MiB · 95 third-party 4.9 MiB over 1MB target
Image 44% · 2.6 MiB
Font 27% · 1.6 MiB
JavaScript 25% · 1.5 MiB
Other 3% · 155.7 KiB
CSS 1% · 73.1 KiB
Document 0% · 21.2 KiB

~588.6 KiB of savings available

Remove unused JavaScript: 588.6 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
46 images, 0 KB saveable
REVIEW
46 images, 0 KB saveable
Info::
All images are well-optimized
46 images 2.6 MB
0 oversized -0 KB
35 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1719ms total JS execution
REVIEW
1719ms total JS execution
Warning::
Unattributable: 431ms CPU time
Warning::
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH...: 381ms CPU time
Info::
https://www.iata.org/: 250ms CPU time
Info::
https://cdn.cookielaw.org/scripttemplates/202601.2...: 198ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-T88...: 179ms CPU time
Warning::
Third-party scripts: 1719ms (100% of total)

Main Thread Breakdown

Script Evaluation 49% Other 26% Script Parsing & Compilation 8% Style & Layout 8% Rendering 3% Garbage Collection 3%
ScriptTotalScriptingParse/CompileParty
Unattributable431ms16ms0ms3rd
https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc381ms275ms77ms3rd
https://www.iata.org/250ms8ms2ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otTCF.js198ms169ms2ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T883LZ179ms129ms18ms3rd
https://www.googletagmanager.com/gtag/js?id=G-PLLG1EY0X0&cx=c&gtm=4e64h1118ms105ms12ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js109ms70ms13ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-1048537815&cx=c&gtm=4e64h154ms42ms11ms3rd
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 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.6 s LCP 4.0 shttps://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2AktivGrotesk_W_Lt.woff2 https://www.iata.org/static/fonts/AktivGrotesk_W_Lt.woff2 — 179.3 KiB — 52 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 — 56 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 — 105 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 — 176.4 KiB — 127 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 — 125 ms — font-display: swaphttps://www.iata.org/static/fonts/iataIcons.woffiataIcons.woff https://www.iata.org/static/fonts/iataIcons.woff — 12.2 KiB — 125 ms — font-display: swaphttps://www.iata.org/static/fonts/iataIcons2019.woffiataIcons2019.woff https://www.iata.org/static/fonts/iataIcons2019.woff — 3.4 KiB — 119 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 — 169.3 KiB — 50 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 — 53 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 — 55 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 — 70 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 — 74 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 — 78 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 — 21 ms — font-display: swap
AktivGrotesk_W_Lt.woff2 woff2 swap
Size 179 KB
Load time 52 ms
Start 80 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 56 ms
Start 80 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 105 ms
Start 81 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 127 ms
Start 81 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 125 ms
Start 82 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 125 ms
Start 82 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 119 ms
Start 83 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 50 ms
Start 502 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 53 ms
Start 503 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 55 ms
Start 503 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
AktivGrotesk_W_Bd.woff2 woff2 swap
Size 176 KB
Load time 70 ms
Start 503 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 74 ms
Start 504 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 78 ms
Start 504 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 21 ms
Start 1.2 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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
96 requests over 2173ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.6 s LCP 4.0 shttps://iata.org// https://iata.org/ — 301 — 93 B — 17 ms — h2https://www.iata.org/www.iata.org/ https://www.iata.org/ — 200 — 18.0 KiB — 49 ms — h3https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 42 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 — 44 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 — 179.3 KiB — 52 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 — 56 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 — 105 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 — 176.4 KiB — 127 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 — 125 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 — 125 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 — 119 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 — 23 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 — 124 ms — h3https://www.iata.org/contentassets/298de74e365f48639a82e2bf515bd801/flynetzero_megamenu.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/298de74e... https://www.iata.org/contentassets/298de74e365f48639a82e2bf515bd801/flynetzero_megamenu.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 6.7 KiB — 124 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 — 46 ms — h2https://www.iata.org/contentassets/df415c6d0ae344ee8d8f3ae341d84c7e/seats.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/df415c6d... https://www.iata.org/contentassets/df415c6d0ae344ee8d8f3ae341d84c7e/seats.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 15.0 KiB — 167 ms — h3https://www.iata.org/contentassets/25fdf21819764404898ffe1eea1653c7/advertisement.png?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/25fdf218... https://www.iata.org/contentassets/25fdf21819764404898ffe1eea1653c7/advertisement.png?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 87.6 KiB — 219 ms — h3https://www.iata.org/contentassets/82bc61c09ae542f4b270c6dd4f30f522/training-330.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/82bc61c0... https://www.iata.org/contentassets/82bc61c09ae542f4b270c6dd4f30f522/training-330.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 10.2 KiB — 212 ms — h3https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lcwww.iata.org/bundles/main.js?v=OJNv... https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc — 200 — 661.0 KiB — 210 ms — h3https://www.iata.org/contentassets/0d3c40466ddd430aa74a7863dbe17cb7/ighc-new-picture.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/0d3c4046... https://www.iata.org/contentassets/0d3c40466ddd430aa74a7863dbe17cb7/ighc-new-picture.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 172.4 KiB — 187 ms — h3https://www.iata.org/contentassets/1f70f9c0c1524c2882127ae5918d9cd7/gmd-media-kit.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/1f70f9c0... https://www.iata.org/contentassets/1f70f9c0c1524c2882127ae5918d9cd7/gmd-media-kit.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 194.4 KiB — 280 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 — 32.7 KiB — 80 ms — h3https://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 — 225 ms — 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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 — 105 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 — 176.4 KiB — 127 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 — 125 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 — 125 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 — 119 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 — 23 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 — 124 ms — h3https://www.iata.org/contentassets/298de74e365f48639a82e2bf515bd801/flynetzero_megamenu.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/298de74e... https://www.iata.org/contentassets/298de74e365f48639a82e2bf515bd801/flynetzero_megamenu.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 6.7 KiB — 124 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 — 46 ms — h2https://www.iata.org/contentassets/df415c6d0ae344ee8d8f3ae341d84c7e/seats.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/df415c6d... https://www.iata.org/contentassets/df415c6d0ae344ee8d8f3ae341d84c7e/seats.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 15.0 KiB — 167 ms — h3https://www.iata.org/contentassets/25fdf21819764404898ffe1eea1653c7/advertisement.png?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/25fdf218... https://www.iata.org/contentassets/25fdf21819764404898ffe1eea1653c7/advertisement.png?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 87.6 KiB — 219 ms — h3https://www.iata.org/contentassets/82bc61c09ae542f4b270c6dd4f30f522/training-330.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/82bc61c0... https://www.iata.org/contentassets/82bc61c09ae542f4b270c6dd4f30f522/training-330.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 10.2 KiB — 212 ms — h3https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lcwww.iata.org/bundles/main.js?v=OJNv... https://www.iata.org/bundles/main.js?v=OJNv0tUZUvH2-lBMwU2XEFcb6lc — 200 — 661.0 KiB — 210 ms — h3https://www.iata.org/contentassets/0d3c40466ddd430aa74a7863dbe17cb7/ighc-new-picture.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/0d3c4046... https://www.iata.org/contentassets/0d3c40466ddd430aa74a7863dbe17cb7/ighc-new-picture.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 172.4 KiB — 187 ms — h3https://www.iata.org/contentassets/1f70f9c0c1524c2882127ae5918d9cd7/gmd-media-kit.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643www.iata.org/contentassets/1f70f9c0... https://www.iata.org/contentassets/1f70f9c0c1524c2882127ae5918d9cd7/gmd-media-kit.jpg?w=345&h=184&mode=crop&scale=both&v=1776805643 — 200 — 194.4 KiB — 280 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 — 32.7 KiB — 80 ms — h3https://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 — 225 ms — 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https://www.google-analytics.com/g/collect?v=2&tid=G-PLLG1EY0X0&gtm=45je64h1v890028022z871611487za20gzb71611487zd71611487&_p=1776806440050&gcs=G100&gcd=13q3p3q3q5l1&npa=1&dma_cps=-&dma=1&tcfd=10s5q&gdid=dYWJhMj&ecid=1276833684&_eu=EAAAAEA&are=1&cid=1952218737.1776806442&ec_mode=a&frm=0&ir=1&pscdl=denied&rcb=14&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266400~117384406~117512543&sid=1776806441&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=1903 — 204 — 547 B — 57 ms — h2https://go.updates.iata.org/analytics?conly=true&pi_form=true&visitor_id=1446394576&visitor_id_sign=db6c4d0672aff4f4695f486faa6786dd3a88be5040cade5165dfcf7fa7bc9b04432281f5d0d98ba2d234f0de32ccaedf2e418521&pi_opt_in=&campaign_id=119710&account_id=124902&title=&url=https%3A%2F%2Fgo.updates.iata.org%2Fl%2F123902%2F2022-11-01%2Fhqljtt&referrer=https%3A%2F%2Fwww.iata.org%2Fgo.updates.iata.org/analytics?conly... https://go.updates.iata.org/analytics?conly=true&pi_form=true&visitor_id=1446394576&visitor_id_sign=db6c4d0672aff4f4695f486faa6786dd3a88be5040cade5165dfcf7fa7bc9b04432281f5d0d98ba2d234f0de32ccaedf2e418521&pi_opt_in=&campaign_id=119710&account_id=124902&title=&url=https%3A%2F%2Fgo.updates.iata.org%2Fl%2F123902%2F2022-11-01%2Fhqljtt&referrer=https%3A%2F%2Fwww.iata.org%2F — 200 — 978 B — 262 ms — http/1.1
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 1719ms · 1345KB · €19/mo
Unattributable
Other
Costly
Execution 431ms
Transfer 0 KB
Monthly Cost €5/mo
www.iata.org
Other
Costly
Execution 381ms
Transfer 661 KB
Unused 39%
Monthly Cost €4/mo
www.iata.org
Other
Costly
Execution 250ms
Transfer 18 KB
Monthly Cost €3/mo
OneTrust
Consent
Essential
Execution 198ms
Transfer 18 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 179ms
Transfer 198 KB
Unused 28%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 118ms
Transfer 177 KB
Unused 38%
Monthly Cost €1/mo
OneTrust
Consent
Essential
Execution 109ms
Transfer 128 KB
Unused 48%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 54ms
Transfer 145 KB
Unused 44%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 431ms and costs ~€5/month
  • www.iata.org adds 381ms and costs ~€4/month
  • www.iata.org adds 250ms 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

Unattributable takes 431ms 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 381ms 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 250ms 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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