Skip to content
https://jetblue.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
68
GRADE
D
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
22
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
94
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
69
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

2.58 s

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

9.24 s

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

2.70 s

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

0.238

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

9.73 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.

26.53 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 2 REVIEW 6 FIX
F
Page Weight Budget
Action
4.8 MB transferred, 107 requests
FIX
4.8 MB transferred, 107 requests
Critical::
Page weighs 11.5 MB (4.8 MB transferred)
Warning::
JavaScript is 2.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.5 MB
Warning::
Images are 1.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.4 MB
Info::
Fonts are 240 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 240 KB
Warning::
107 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.0 g CO2 per page load
4.8 MB / 2.4 MB budget
4.8 MB transferred
107 requests
1.0 g CO2 per page load
JavaScript 2.5 MiB 51%
Images 1.4 MiB 28%
Other 542.9 KiB 11%
Fonts 240.4 KiB 5%
HTML 109.8 KiB 2%
Other 54.5 KiB 1%
CSS 20.4 KiB 0%
Other 18.6 KiB 0%
Other 3.4 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

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 (4.8 MiB of 4.8 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
13394ms total JS execution
FIX
13394ms total JS execution
Warning::
https://st.dynamicyield.com/st?sec=8791140&ref=&sc...: 3603ms CPU time
Warning::
https://cdn.dynamicyield.com/api/8791140/api_dynam...: 1959ms CPU time
Warning::
https://www.jetblue.com/_next/static/chunks/0_wckr...: 1688ms CPU time
Warning::
Unattributable: 1437ms CPU time
Warning::
https://static.jetblue.com/49b10c8ad172622fbc74/di...: 1300ms CPU time
Warning::
Third-party scripts: 13394ms (100% of total)

Main Thread Breakdown

Script Evaluation 67% Other 15% Script Parsing & Compilation 8% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://st.dynamicyield.com/st?sec=8791140&ref=&scriptVersion=2.83.0&inHead=true&id=0&jsession=cs7o2x2rh3v5lnymr5vec3ktpqnr7zug&isSesNew=true&dyid_server=0&ctx=%7B%22type%22%3A%22HOMEPAGE%22%7D&noConsent=true3603ms3287ms12ms3rd
https://cdn.dynamicyield.com/api/8791140/api_dynamic.js1959ms1629ms168ms3rd
https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.js1688ms1494ms31ms3rd
Unattributable1437ms53ms0ms3rd
https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.js1300ms904ms54ms3rd
https://www.jetblue.com/1112ms253ms108ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SM732ms444ms279ms3rd
https://sdk.joinsherpa.io/widget.js?appId=spY3MjM0OT&affiliateId=jetblue370ms213ms85ms3rd
https://consent.trustarc.com/asset/notice.js/v/v1.7-1729232ms153ms16ms3rd
https://edge.fullstory.com/s/fs.js200ms157ms36ms3rd

Showing top 10 of 16 scripts

F
JS Bundles
Action
29 scripts, 1.1 MB unused
FIX
29 scripts, 1.1 MB unused
Warning::
https://static.jetblue.com/49b10c8ad172622fbc74/di...: 293 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sdk.joinsherpa.io/widget.js?appId=spY3MjM0...: 250 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.jetblue.com/_next/static/chunks/0nhjsm...: 197 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://sdk.asapp.com/chat-sdk.js: 81 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5J9...: 75 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.1 MB
1164 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.js437 KB293 KB (67%)✓3rd
https://sdk.joinsherpa.io/widget.js?appId=spY3MjM0OT&affiliateId=jetblue664 KB250 KB (38%)✓3rd
https://www.jetblue.com/_next/static/chunks/0nhjsm87u22zm.js271 KB197 KB (74%)✓3rd
https://sdk.asapp.com/chat-sdk.js119 KB81 KB (68%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SM193 KB75 KB (39%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T69MLS2R118 KB68 KB (58%)✓3rd
https://cdn.dynamicyield.com/api/8791140/api_static.js112 KB59 KB (53%)✓3rd
https://edge.fullstory.com/s/fs.js80 KB53 KB (67%)✓3rd
https://js.appboycdn.com/web-sdk/6.3/braze.min.js64 KB45 KB (71%)✓3rd
https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.js70 KB22 KB (32%)✓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
107 resources · 4.8 MB · 1.1 MB savings available
FIX
107 resources · 4.8 MB · 1.1 MB savings available
Warning::
Page weight 3.8 MB over 1MB target
Got: 4.8 MB Expected: ≤ 1 MB
Info::
~1.1 MB of savings available
Warning::
106 third-party resources (100% of weight)
Info::
5 resources over 200KB
107 resources · 4.8 MiB · 106 third-party 3.8 MiB over 1MB target
JavaScript 54% · 2.6 MiB
Image 29% · 1.4 MiB
Other 7% · 344.9 KiB
Document 5% · 254.2 KiB
Font 5% · 240.4 KiB
CSS 0% · 20.4 KiB

~1.1 MiB of savings available

Remove unused JavaScript: 1.1 MiB
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
24 images, 0 KB saveable
REVIEW
24 images, 0 KB saveable
Info::
All images are well-optimized
24 images 1.0 MB
0 oversized -0 KB
12 legacy format
0 missing dimensions CLS risk
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
5 fonts (240 KB)
PASS
5 fonts (240 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

240 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.6 s LCP 9.2 shttps://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2klarheit_book-s.p.0mkqy... https://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2 — 41.6 KiB — 28 ms — font-display: swaphttps://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2klarheit_semi-s.p.0aw9g... https://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2 — 41.1 KiB — 32 ms — font-display: swaphttps://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2klarheit_xbold-s.p.149-... https://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2 — 40.3 KiB — 20 ms — font-display: swaphttps://consent.trustarc.com/get?name=ESKlarheitGrotesk-Bk.woffget https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Bk.woff — 58.7 KiB — 58 ms — font-display: swaphttps://consent.trustarc.com/get?name=ESKlarheitGrotesk-Smbd.woffget https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Smbd.woff — 58.5 KiB — 69 ms — font-display: swap
klarheit_book-s.p.0mkqy... woff2 swap
Size 42 KB
Load time 28 ms
Start 695 ms
Risk FOUT — text flashes from fallback to web font
klarheit_semi-s.p.0aw9g... woff2 swap
Size 41 KB
Load time 32 ms
Start 695 ms
Risk FOUT — text flashes from fallback to web font
klarheit_xbold-s.p.149-... woff2 swap
Size 40 KB
Load time 20 ms
Start 696 ms
Risk FOUT — text flashes from fallback to web font
get woff swap
Size 59 KB
Load time 58 ms
Start 2.6 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
get woff swap
Size 59 KB
Load time 69 ms
Start 2.6 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)

Fixing the unchecked items could save ~35 KB and ~70 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
14 hints, 0 missing preconnects
PASS
14 hints, 0 missing preconnects
Info::
Page uses 14 resource hint(s)

Current Resource Hints

preconnect
3
preload
8
dns-prefetch
3
prefetch
—

14 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
Network Waterfall
107 requests over 8819ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.6 s LCP 9.2 shttps://jetblue.com// https://jetblue.com/ — 301 — 486 B — 521 ms — h2https://www.jetblue.com/www.jetblue.com/ https://www.jetblue.com/ — 200 — 108.4 KiB — 152 ms — h2https://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2 — 200 — 41.6 KiB — 28 ms — h2https://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2 — 200 — 41.1 KiB — 32 ms — h2https://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2 — 200 — 40.3 KiB — 20 ms — h2https://www.jetblue.com/_next/static/chunks/06n61u~q3t7qv.csswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/06n61u~q3t7qv.css — 200 — 19.3 KiB — 34 ms — h2https://www.jetblue.com/_next/static/chunks/16n-h467x-sa8.csswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/16n-h467x-sa8.css — 200 — 1.1 KiB — 12 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SMwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SM — 200 — 193.3 KiB — 281 ms — h2https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.jsstatic.jetblue.com/49b10c8ad172622f... https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.js — 200 — 436.7 KiB — 165 ms — h2https://consent.trustarc.com/notice?domain=jetblue.com&c=teconsent&js=nj&noticeType=bb&gtm=1consent.trustarc.com/notice?domain=... https://consent.trustarc.com/notice?domain=jetblue.com&c=teconsent&js=nj&noticeType=bb&gtm=1 — 200 — 6.3 KiB — 217 ms — h2https://static.jetblue.com/243baff993e46b2c0433/felog/felog.jsstatic.jetblue.com/243baff993e46b2c... https://static.jetblue.com/243baff993e46b2c0433/felog/felog.js — 200 — 12.0 KiB — 139 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75 — 200 — 1.1 KiB — 152 ms — h2https://www.jetblue.com/_next/static/chunks/0axj_zje~44.0.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0axj_zje~44.0.js — 200 — 10.0 KiB — 25 ms — h2https://www.jetblue.com/_next/static/chunks/17z1w7bys5_4s.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/17z1w7bys5_4s.js — 200 — 11.5 KiB — 45 ms — h2https://www.jetblue.com/_next/static/chunks/0ae-y3ieog_ji.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0ae-y3ieog_ji.js — 200 — 37.3 KiB — 38 ms — h2https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.js — 200 — 70.1 KiB — 66 ms — h2https://www.jetblue.com/_next/static/chunks/turbopack-0xf4bb-rcwobw.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/turbopack-0xf4bb-rcwobw.js — 200 — 5.1 KiB — 23 ms — h2https://www.jetblue.com/_next/static/chunks/0fb7w_mlgdl6f.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0fb7w_mlgdl6f.js — 200 — 2.4 KiB — 54 ms — h2https://www.jetblue.com/_next/static/chunks/0t8sj65wk580x.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0t8sj65wk580x.js — 200 — 13.6 KiB — 36 ms — h2https://www.jetblue.com/_next/static/chunks/0c2yzwgt6~uxc.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0c2yzwgt6~uxc.js — 200 — 10.9 KiB — 42 ms — h2https://www.jetblue.com/_next/static/chunks/0o_htt5ntz-6f.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0o_htt5ntz-6f.js — 200 — 31.1 KiB — 62 ms — h2https://www.jetblue.com/_next/static/chunks/181sud9sx5lcd.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/181sud9sx5lcd.js — 200 — 18.3 KiB — 58 ms — h2https://www.jetblue.com/_next/static/chunks/08v1a~u9cg.d6.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/08v1a~u9cg.d6.js — 200 — 5.7 KiB — 42 ms — h2https://www.jetblue.com/_next/static/chunks/0nhjsm87u22zm.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0nhjsm87u22zm.js — 200 — 271.1 KiB — 65 ms — h2https://www.jetblue.com/manifest.webmanifestwww.jetblue.com/manifest.webmanifes... https://www.jetblue.com/manifest.webmanifest — 200 — 1.7 KiB — 30 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75 — 200 — 1.2 KiB — 198 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75 — 200 — 2.9 KiB — 195 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75 — 200 — 1.9 KiB — 189 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75 — 200 — 965 B — 197 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75 — 200 — 30.8 KiB — 193 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.6 s LCP 9.2 shttps://jetblue.com// https://jetblue.com/ — 301 — 486 B — 521 ms — h2https://www.jetblue.com/www.jetblue.com/ https://www.jetblue.com/ — 200 — 108.4 KiB — 152 ms — h2https://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_book-s.p.0mkqyv87c5ss8.woff2 — 200 — 41.6 KiB — 28 ms — h2https://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_semi-s.p.0aw9gf1e7~8aq.woff2 — 200 — 41.1 KiB — 32 ms — h2https://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2www.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/klarheit_xbold-s.p.149-m-o3~0rpb.woff2 — 200 — 40.3 KiB — 20 ms — h2https://www.jetblue.com/_next/static/chunks/06n61u~q3t7qv.csswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/06n61u~q3t7qv.css — 200 — 19.3 KiB — 34 ms — h2https://www.jetblue.com/_next/static/chunks/16n-h467x-sa8.csswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/16n-h467x-sa8.css — 200 — 1.1 KiB — 12 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SMwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-5J92P6SM — 200 — 193.3 KiB — 281 ms — h2https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.jsstatic.jetblue.com/49b10c8ad172622f... https://static.jetblue.com/49b10c8ad172622fbc74/dist/wc-auth-wrapper/wc-auth-wrapper-element.js — 200 — 436.7 KiB — 165 ms — h2https://consent.trustarc.com/notice?domain=jetblue.com&c=teconsent&js=nj&noticeType=bb&gtm=1consent.trustarc.com/notice?domain=... https://consent.trustarc.com/notice?domain=jetblue.com&c=teconsent&js=nj&noticeType=bb&gtm=1 — 200 — 6.3 KiB — 217 ms — h2https://static.jetblue.com/243baff993e46b2c0433/felog/felog.jsstatic.jetblue.com/243baff993e46b2c... https://static.jetblue.com/243baff993e46b2c0433/felog/felog.js — 200 — 12.0 KiB — 139 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75 — 200 — 1.1 KiB — 152 ms — h2https://www.jetblue.com/_next/static/chunks/0axj_zje~44.0.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0axj_zje~44.0.js — 200 — 10.0 KiB — 25 ms — h2https://www.jetblue.com/_next/static/chunks/17z1w7bys5_4s.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/17z1w7bys5_4s.js — 200 — 11.5 KiB — 45 ms — h2https://www.jetblue.com/_next/static/chunks/0ae-y3ieog_ji.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0ae-y3ieog_ji.js — 200 — 37.3 KiB — 38 ms — h2https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0_wckrpl-en4q.js — 200 — 70.1 KiB — 66 ms — h2https://www.jetblue.com/_next/static/chunks/turbopack-0xf4bb-rcwobw.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/turbopack-0xf4bb-rcwobw.js — 200 — 5.1 KiB — 23 ms — h2https://www.jetblue.com/_next/static/chunks/0fb7w_mlgdl6f.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0fb7w_mlgdl6f.js — 200 — 2.4 KiB — 54 ms — h2https://www.jetblue.com/_next/static/chunks/0t8sj65wk580x.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0t8sj65wk580x.js — 200 — 13.6 KiB — 36 ms — h2https://www.jetblue.com/_next/static/chunks/0c2yzwgt6~uxc.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0c2yzwgt6~uxc.js — 200 — 10.9 KiB — 42 ms — h2https://www.jetblue.com/_next/static/chunks/0o_htt5ntz-6f.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0o_htt5ntz-6f.js — 200 — 31.1 KiB — 62 ms — h2https://www.jetblue.com/_next/static/chunks/181sud9sx5lcd.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/181sud9sx5lcd.js — 200 — 18.3 KiB — 58 ms — h2https://www.jetblue.com/_next/static/chunks/08v1a~u9cg.d6.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/08v1a~u9cg.d6.js — 200 — 5.7 KiB — 42 ms — h2https://www.jetblue.com/_next/static/chunks/0nhjsm87u22zm.jswww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0nhjsm87u22zm.js — 200 — 271.1 KiB — 65 ms — h2https://www.jetblue.com/manifest.webmanifestwww.jetblue.com/manifest.webmanifes... https://www.jetblue.com/manifest.webmanifest — 200 — 1.7 KiB — 30 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75 — 200 — 1.2 KiB — 198 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75 — 200 — 2.9 KiB — 195 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75 — 200 — 1.9 KiB — 189 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75 — 200 — 965 B — 197 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75 — 200 — 30.8 KiB — 193 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/nantucket-memorial-day-merch-03-2026.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/nantucket-memorial-day-merch-03-2026.jpg?auto=webp&width=750&quality=75 — 200 — 64.2 KiB — 125 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/Dublin-merch-st-patricks.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/Dublin-merch-st-patricks.jpg?auto=webp&width=750&quality=75 — 200 — 42.6 KiB — 127 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ALL-INCLUSIVE-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ALL-INCLUSIVE-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 22.5 KiB — 15 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CRUISE-1280x720-EDIT.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CRUISE-1280x720-EDIT.webp?auto=webp&width=640&quality=75 — 200 — 36.7 KiB — 17 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-FAMILY-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-FAMILY-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 43.7 KiB — 19 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-HOTELS-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-HOTELS-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 35.9 KiB — 8 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CARS-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CARS-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 23.9 KiB — 11 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ACTIVITIES-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ACTIVITIES-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 45.4 KiB — 15 ms — h2https://www.jetblue.com/_next/static/chunks/0ilvd-s7lhvyf.wasmwww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0ilvd-s7lhvyf.wasm — 200 — 52.9 KiB — 9 ms — h2https://www.jetblue.com/_next/static/chunks/0.mx63q5c-pwu.wasmwww.jetblue.com/_next/static/chunks... https://www.jetblue.com/_next/static/chunks/0.mx63q5c-pwu.wasm — 200 — 132.3 KiB — 12 ms — h2https://www.jetblue.com/favicon.ico?favicon.0u46cnxbm8p6k.icowww.jetblue.com/favicon.ico?favicon... https://www.jetblue.com/favicon.ico?favicon.0u46cnxbm8p6k.ico — 200 — 15.1 KiB — 9 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue-logo.svg?auto=webp&width=32&quality=75 — 200 — 1.2 KiB — 8 ms — h3https://cb-api.jetblue.com/cb-gatekeeper/v1/gatekeeper/flags?flags=dotcom_dynamic_yield,dotcom_cblogger_captureClick,dotcom_cblogger_captureError,dotcom_cblogger_enableConsoleLogs&userId=0cb-api.jetblue.com/cb-gatekeeper/v1... https://cb-api.jetblue.com/cb-gatekeeper/v1/gatekeeper/flags?flags=dotcom_dynamic_yield,dotcom_cblogger_captureClick,dotcom_cblogger_captureError,dotcom_cblogger_enableConsoleLogs&userId=0 — 200 — 0 B — 228 ms — h2https://cdn.dynamicyield.com/api/8791140/api_dynamic.jscdn.dynamicyield.com/api/8791140/ap... https://cdn.dynamicyield.com/api/8791140/api_dynamic.js — 200 — 106.7 KiB — 408 ms — h2https://cdn.dynamicyield.com/api/8791140/api_static.jscdn.dynamicyield.com/api/8791140/ap... https://cdn.dynamicyield.com/api/8791140/api_static.js — 200 — 111.8 KiB — 28 ms — h2https://js.appboycdn.com/web-sdk/6.3/braze.min.jsjs.appboycdn.com/web-sdk/6.3/braze.... https://js.appboycdn.com/web-sdk/6.3/braze.min.js — 200 — 63.7 KiB — 41 ms — h2https://sdk.asapp.com/chat-sdk.jssdk.asapp.com/chat-sdk.js https://sdk.asapp.com/chat-sdk.js — 200 — 119.4 KiB — 792 ms — h2https://sdk.joinsherpa.io/widget.js?appId=spY3MjM0OT&affiliateId=jetbluesdk.joinsherpa.io/widget.js?appId=s... https://sdk.joinsherpa.io/widget.js?appId=spY3MjM0OT&affiliateId=jetblue — 200 — 663.7 KiB — 150 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_supernav.svg?auto=webp&width=750&quality=75 — 200 — 1.4 KiB — 122 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/jetblue_vacations_supernav.svg?auto=webp&width=750&quality=75 — 200 — 3.1 KiB — 136 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/logos/trueblue-travel_deep-blue.svg?auto=webp&width=750&quality=75 — 200 — 2.0 KiB — 138 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/icons/silhouette-white-2.svg?auto=webp&width=750&quality=75 — 200 — 1.2 KiB — 155 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/booker/beach-greenery-booker-.jpg?auto=webp&width=750&quality=75 — 200 — 30.9 KiB — 147 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/nantucket-memorial-day-merch-03-2026.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/nantucket-memorial-day-merch-03-2026.jpg?auto=webp&width=750&quality=75 — 200 — 64.3 KiB — 153 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/Dublin-merch-st-patricks.jpg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/promo-blocks/Dublin-merch-st-patricks.jpg?auto=webp&width=750&quality=75 — 200 — 42.8 KiB — 143 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ALL-INCLUSIVE-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ALL-INCLUSIVE-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 22.6 KiB — 49 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CRUISE-1280x720-EDIT.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CRUISE-1280x720-EDIT.webp?auto=webp&width=640&quality=75 — 200 — 36.8 KiB — 47 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-FAMILY-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-FAMILY-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 43.9 KiB — 27 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-HOTELS-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-HOTELS-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 36.0 KiB — 42 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CARS-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-CARS-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 24.1 KiB — 37 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ACTIVITIES-1280x720.webp?auto=webp&width=640&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/marketing/Airways-HP-ACTIVITIES-1280x720.webp?auto=webp&width=640&quality=75 — 200 — 45.6 KiB — 37 ms — h3https://www.jetblue.com/_next/static/media/android-icon.155471c4mo1vh.pngwww.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/android-icon.155471c4mo1vh.png — 200 — 5.5 KiB — 25 ms — h2https://cms.jetblue.com/dam/ui-assets/imagery/header/Plane_Flights.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/header/Plane_Flights.svg?auto=webp&width=750&quality=75 — 200 — 1.3 KiB — 143 ms — h3https://cms.jetblue.com/dam/ui-assets/imagery/header/jetblue_vacations.svg?auto=webp&width=750&quality=75cms.jetblue.com/dam/ui-assets/image... https://cms.jetblue.com/dam/ui-assets/imagery/header/jetblue_vacations.svg?auto=webp&width=750&quality=75 — 200 — 2.2 KiB — 141 ms — h3https://www.jetblue.com/_next/static/media/icon-192x192.1749164b.pngwww.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/icon-192x192.1749164b.png — 200 — 3.0 KiB — 27 ms — h2https://www.jetblue.com/c23f7ab876ac167e0546/projects/jb-auth/auth-wrapper/production.jsonwww.jetblue.com/c23f7ab876ac167e054... https://www.jetblue.com/c23f7ab876ac167e0546/projects/jb-auth/auth-wrapper/production.json — 200 — 1.9 KiB — 81 ms — h2https://cb-api.jetblue.com/cb-gatekeeper/v1/gatekeeper/flags?flags=dotcom_dynamic_yield,dotcom_cblogger_captureClick,dotcom_cblogger_captureError,dotcom_cblogger_enableConsoleLogs&userId=0cb-api.jetblue.com/cb-gatekeeper/v1... https://cb-api.jetblue.com/cb-gatekeeper/v1/gatekeeper/flags?flags=dotcom_dynamic_yield,dotcom_cblogger_captureClick,dotcom_cblogger_captureError,dotcom_cblogger_enableConsoleLogs&userId=0 — 200 — 686 B — 539 ms — h2https://consent.trustarc.com/analytics?action=0&domain=jetblue.com&implied=0&session=2042ddceec7945f58d1e7cd6f2140db9&new=1&referer=https://www.jetblue.comconsent.trustarc.com/analytics?acti... https://consent.trustarc.com/analytics?action=0&domain=jetblue.com&implied=0&session=2042ddceec7945f58d1e7cd6f2140db9&new=1&referer=https://www.jetblue.com — 200 — 464 B — 348 ms — h2https://consent.trustarc.com/asset/notice.js/v/v1.7-1729consent.trustarc.com/asset/notice.j... https://consent.trustarc.com/asset/notice.js/v/v1.7-1729 — 200 — 36.4 KiB — 148 ms — h2https://consent.trustarc.com/get?name=crossdomain.html&domain=jetblue.comconsent.trustarc.com/get?name=cross... https://consent.trustarc.com/get?name=crossdomain.html&domain=jetblue.com — 200 — 1.4 KiB — 86 ms — h2https://azrest.jetblue.com/od/od-service/nearby-airportsazrest.jetblue.com/od/od-service/ne... https://azrest.jetblue.com/od/od-service/nearby-airports — 200 — 545 B — 209 ms — h2https://www.jetblue.com/en/find-flights-memorial-day-weekend?_rsc=vmf80www.jetblue.com/en/find-flights-mem... https://www.jetblue.com/en/find-flights-memorial-day-weekend?_rsc=vmf80 — 200 — 144.4 KiB — 435 ms — h2https://www.jetblue.com/?_rsc=1yypkwww.jetblue.com/?_rsc=1yypk https://www.jetblue.com/?_rsc=1yypk — 200 — 1.5 KiB — 8 ms — h2https://www.jetblue.com/?_rsc=3vx0fwww.jetblue.com/?_rsc=3vx0f https://www.jetblue.com/?_rsc=3vx0f — 200 — 1.2 KiB — 12 ms — h2https://www.jetblue.com/?_rsc=juz21www.jetblue.com/?_rsc=juz21 https://www.jetblue.com/?_rsc=juz21 — 200 — 558 B — 13 ms — h2https://www.jetblue.com/favicon.ico?favicon.0u46cnxbm8p6k.icowww.jetblue.com/favicon.ico?favicon... https://www.jetblue.com/favicon.ico?favicon.0u46cnxbm8p6k.ico — 200 — 0 B — 13 ms — h2https://www.jetblue.com/manifest.webmanifestwww.jetblue.com/manifest.webmanifes... https://www.jetblue.com/manifest.webmanifest — 200 — 1.7 KiB — 7 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-T69MLS2Rwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-T69MLS2R — 200 — 117.8 KiB — 170 ms — h2https://www.jetblue.com/?_rsc=19rfywww.jetblue.com/?_rsc=19rfy https://www.jetblue.com/?_rsc=19rfy — 200 — 2.2 KiB — 19 ms — h2https://www.jetblue.com/?_rsc=1xjkbwww.jetblue.com/?_rsc=1xjkb https://www.jetblue.com/?_rsc=1xjkb — 200 — 699 B — 8 ms — h2https://www.jetblue.com/?_rsc=1nkmiwww.jetblue.com/?_rsc=1nkmi https://www.jetblue.com/?_rsc=1nkmi — 200 — 87.2 KiB — 22 ms — h2https://www.jetblue.com/c23f7ab876ac167e0546/projects/jb-auth/auth-wrapper/production.jsonwww.jetblue.com/c23f7ab876ac167e054... https://www.jetblue.com/c23f7ab876ac167e0546/projects/jb-auth/auth-wrapper/production.json — 200 — 1.9 KiB — 100 ms — h2https://www.jetblue.com/_next/static/media/icon-192x192.1749164b.pngwww.jetblue.com/_next/static/media/... https://www.jetblue.com/_next/static/media/icon-192x192.1749164b.png — 200 — 0 B — 10 ms — h2https://cdn.dynamicyield.com/scripts/2.83.0/dy-coll-nojq-min.jscdn.dynamicyield.com/scripts/2.83.0... https://cdn.dynamicyield.com/scripts/2.83.0/dy-coll-nojq-min.js — 200 — 34.0 KiB — 16 ms — h2https://sdk.iad-07.braze.com/api/v3/data/sdk.iad-07.braze.com/api/v3/data/ https://sdk.iad-07.braze.com/api/v3/data/ — 204 — 0 B — 157 ms — h2https://edge.fullstory.com/s/fs.jsedge.fullstory.com/s/fs.js https://edge.fullstory.com/s/fs.js — 200 — 79.8 KiB — 23 ms — h2https://static.jetblue.com/243baff993e46b2c0433/felog/felog.js?v=2static.jetblue.com/243baff993e46b2c... https://static.jetblue.com/243baff993e46b2c0433/felog/felog.js?v=2 — 200 — 12.0 KiB — 6 ms — h3https://accounts.jetblue.com/api/v1/sessions/meaccounts.jetblue.com/api/v1/session... https://accounts.jetblue.com/api/v1/sessions/me — 200 — 0 B — 843 ms — h2https://consent.trustarc.com/asset/cookiepref.pngconsent.trustarc.com/asset/cookiepr... https://consent.trustarc.com/asset/cookiepref.png — 200 — 9.3 KiB — 50 ms — h2https://sdk.iad-07.braze.com/api/v3/data/sdk.iad-07.braze.com/api/v3/data/ https://sdk.iad-07.braze.com/api/v3/data/ — 201 — 857 B — 168 ms — h2https://st.dynamicyield.com/st?sec=8791140&ref=&scriptVersion=2.83.0&inHead=true&id=0&jsession=cs7o2x2rh3v5lnymr5vec3ktpqnr7zug&isSesNew=true&dyid_server=0&ctx=%7B%22type%22%3A%22HOMEPAGE%22%7D&noConsent=truest.dynamicyield.com/st?sec=8791140&... https://st.dynamicyield.com/st?sec=8791140&ref=&scriptVersion=2.83.0&inHead=true&id=0&jsession=cs7o2x2rh3v5lnymr5vec3ktpqnr7zug&isSesNew=true&dyid_server=0&ctx=%7B%22type%22%3A%22HOMEPAGE%22%7D&noConsent=true — 200 — 8.3 KiB — 152 ms — h2https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-1729consent.trustarc.com/asset/adv-bund... https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-1729 — 200 — 78.2 KiB — 86 ms — h2https://consent.trustarc.com/analytics?action=7&domain=jetblue.com&implied=0&session=2042ddceec7945f58d1e7cd6f2140db9&new=1&referer=https://www.jetblue.comconsent.trustarc.com/analytics?acti... https://consent.trustarc.com/analytics?action=7&domain=jetblue.com&implied=0&session=2042ddceec7945f58d1e7cd6f2140db9&new=1&referer=https://www.jetblue.com — 200 — 464 B — 267 ms — h2https://edge.fullstory.com/s/settings/4HV1Q/v1/web?ngsw-bypass=trueedge.fullstory.com/s/settings/4HV1Q... https://edge.fullstory.com/s/settings/4HV1Q/v1/web?ngsw-bypass=true — 200 — 53.7 KiB — 12 ms — h2https://consent.trustarc.com/cm/jetblue.com/modalconfig?type=jetblue_slider&layout=default_eu&locale=en&country=brconsent.trustarc.com/cm/jetblue.com... https://consent.trustarc.com/cm/jetblue.com/modalconfig?type=jetblue_slider&layout=default_eu&locale=en&country=br — 200 — 77.1 KiB — 116 ms — h2https://consent.trustarc.com/images/loading.gifconsent.trustarc.com/images/loading... https://consent.trustarc.com/images/loading.gif — 200 — 2.1 KiB — 46 ms — h2https://cdn.dynamicyield.com/api/8791140/images/c28152b90d8c.webpcdn.dynamicyield.com/api/8791140/im... https://cdn.dynamicyield.com/api/8791140/images/c28152b90d8c.webp — 200 — 240.8 KiB — 37 ms — h2https://cdn.dynamicyield.com/api/8791140/images/74ac7ae85fc1.webpcdn.dynamicyield.com/api/8791140/im... https://cdn.dynamicyield.com/api/8791140/images/74ac7ae85fc1.webp — 200 — 70.6 KiB — 16 ms — h2https://cdn.dynamicyield.com/api/8791140/images/bd00dbfca44f.webpcdn.dynamicyield.com/api/8791140/im... https://cdn.dynamicyield.com/api/8791140/images/bd00dbfca44f.webp — 200 — 353.1 KiB — 26 ms — h2https://consent.trustarc.com/get?name=Powered-By-TrustArc.pngconsent.trustarc.com/get?name=Power... https://consent.trustarc.com/get?name=Powered-By-TrustArc.png — 200 — 2.2 KiB — 46 ms — h2https://consent-pref.trustarc.com/images/arrow.pngconsent-pref.trustarc.com/images/ar... https://consent-pref.trustarc.com/images/arrow.png — 200 — 1.4 KiB — 143 ms — h2https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Bk.woffconsent.trustarc.com/get?name=ESKla... https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Bk.woff — 200 — 58.7 KiB — 58 ms — h2https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Smbd.woffconsent.trustarc.com/get?name=ESKla... https://consent.trustarc.com/get?name=ESKlarheitGrotesk-Smbd.woff — 200 — 58.5 KiB — 69 ms — h2https://accounts.jetblue.com/api/v1/sessions/meaccounts.jetblue.com/api/v1/session... https://accounts.jetblue.com/api/v1/sessions/me — 404 — 1.8 KiB — 731 ms — h3https://cb-api.jetblue.com/cb-logger/logcb-api.jetblue.com/cb-logger/log https://cb-api.jetblue.com/cb-logger/log — 200 — 0 B — 530 ms — h3https://cb-api.jetblue.com/cb-logger/logcb-api.jetblue.com/cb-logger/log https://cb-api.jetblue.com/cb-logger/log — 201 — 559 B — 201 ms — h3https://cb-api.jetblue.com/cb-logger/logcb-api.jetblue.com/cb-logger/log https://cb-api.jetblue.com/cb-logger/log — 201 — 558 B — 209 ms — h3
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 13394ms · 2323KB · €71/mo
st.dynamicyield.com
Other
Costly
Execution 3603ms
Transfer 8 KB
Monthly Cost €19/mo
cdn.dynamicyield.com
Other
Costly
Execution 1959ms
Transfer 107 KB
Monthly Cost €10/mo
www.jetblue.com
Other
Costly
Execution 1688ms
Transfer 70 KB
Unused 32%
Monthly Cost €9/mo
Unattributable
Other
Costly
Execution 1437ms
Transfer 0 KB
Monthly Cost €8/mo
static.jetblue.com
Other
Costly
Execution 1300ms
Transfer 437 KB
Unused 67%
Monthly Cost €7/mo
www.jetblue.com
Other
Costly
Execution 1112ms
Transfer 108 KB
Monthly Cost €6/mo
Google Tag Manager
Tag Manager
Costly
Execution 732ms
Transfer 193 KB
Unused 39%
Monthly Cost €4/mo
sdk.joinsherpa.io
Other
Costly
Execution 370ms
Transfer 664 KB
Unused 38%
Monthly Cost €2/mo
consent.trustarc.com
Other
Costly
Execution 232ms
Transfer 36 KB
Monthly Cost €1/mo
edge.fullstory.com
Other
Optional
Execution 200ms
Transfer 80 KB
Unused 67%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 170ms
Transfer 118 KB
Unused 58%
Monthly Cost €1/mo
cdn.dynamicyield.com
Other
Optional
Execution 153ms
Transfer 112 KB
Unused 53%
Monthly Cost €1/mo
www.jetblue.com
Other
Optional
Execution 135ms
Transfer 271 KB
Unused 74%
Monthly Cost €1/mo
js.appboycdn.com
Other
Optional
Execution 129ms
Transfer 64 KB
Unused 71%
Monthly Cost €1/mo
www.jetblue.com
Other
Optional
Execution 93ms
Transfer 37 KB
Monthly Cost €0/mo
www.jetblue.com
Other
Optional
Execution 80ms
Transfer 18 KB
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • st.dynamicyield.com adds 3603ms and costs ~€19/month
  • cdn.dynamicyield.com adds 1959ms and costs ~€10/month
  • www.jetblue.com adds 1688ms and costs ~€9/month
  • Unattributable adds 1437ms and costs ~€8/month
  • static.jetblue.com adds 1300ms and costs ~€7/month
  • www.jetblue.com adds 1112ms and costs ~€6/month
  • Google Tag Manager adds 732ms and costs ~€4/month
  • sdk.joinsherpa.io adds 370ms and costs ~€2/month
  • consent.trustarc.com adds 232ms and costs ~€1/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

st.dynamicyield.com takes 3603ms 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

cdn.dynamicyield.com takes 1959ms 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.jetblue.com takes 1688ms 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 1437ms 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

static.jetblue.com takes 1300ms 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

67% of static.jetblue.com'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

www.jetblue.com takes 1112ms 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 732ms 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

sdk.joinsherpa.io takes 370ms 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

consent.trustarc.com takes 232ms 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

67% of edge.fullstory.com'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

58% of Google Tag Manager'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

53% of cdn.dynamicyield.com'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

74% of www.jetblue.com'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

71% of js.appboycdn.com'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