Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.26 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.79 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
513 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.114
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.00 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.
5.87 s
Page Load Progression
855 ms
1.7 s
2.6 s
3.4 s
4.3 s
5.1 s 6.0 s
6.8 sFPage Weight BudgetAction6.4 MB transferred, 613 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction5444ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://content.r9cdn.net/frontier/assets/CcD8mPq4Km.js | 1390ms | 1072ms | 2ms | 3rd |
| Unattributable | 1204ms | 302ms | 0ms | 3rd |
| https://www.kayak.com/ | 1144ms | 20ms | 4ms | 3rd |
| https://content.r9cdn.net/frontier/assets/CH9QYAfBte.js | 328ms | 47ms | 0ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31097815 | 240ms | 217ms | 15ms | 3rd |
| (program):2 | 192ms | 159ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c>m=4e64e1 | 191ms | 163ms | 26ms | 3rd |
| https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js | 123ms | 109ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-988306736&l=unifiedDataLayer&cx=c>m=4e64e1 | 95ms | 84ms | 10ms | 3rd |
| https://fundingchoicesmessages.google.com/i/12907657?ers=3 | 86ms | 80ms | 5ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction321 scripts, 1.4 MB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://content.r9cdn.net/frontier/assets/nNPJO96_9o.js | 576 KB | 266 KB (46%) | ✓ | 3rd |
| https://content.r9cdn.net/frontier/assets/C56mkV0DvP.js | 313 KB | 223 KB (71%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31097815 | 186 KB | 100 KB (53%) | ✓ | 3rd |
| https://72164059993b.cdn4.forter.com/sn/72164059993b/script.js | 211 KB | 90 KB (43%) | ✓ | 3rd |
| https://ads.pubmatic.com/AdServer/js/pwt/167312/18979/pwt.js | 136 KB | 88 KB (65%) | ✓ | 3rd |
| https://content.r9cdn.net/frontier/assets/Cy3xa8euyp.js | 95 KB | 72 KB (76%) | ✓ | 3rd |
| https://accounts.google.com/gsi/client | 96 KB | 71 KB (75%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-PWCRSK2Y5Y&l=unifiedDataLayer&cx=c>m=4e64e1 | 172 KB | 64 KB (37%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=DC-5142311&l=unifiedDataLayer&cx=c>m=4e64e1 | 129 KB | 60 KB (47%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-undefined&l=unifiedDataLayer&cx=c>m=4e64e1 | 134 KB | 60 KB (45%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction613 resources · 6.4 MB · 1.4 MB savings availableFIX
~1.4 MiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 613 resources | 6.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction43 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading1 fonts (140 KB)PASS
Web fonts
1
140 KB total
Render-blocking
0
of 1
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~70 KB and ~140 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall613 requests over 6820msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
content.r9cdn.net content.r9cdn.net | Other | 1390ms | 66 KB | — | $24/mo | Costly |
Unattributable Unattributable | Other | 1204ms | 0 KB | — | $21/mo | Costly |
www.kayak.com www.kayak.com | Other | 1144ms | 233 KB | — | $20/mo | Costly |
content.r9cdn.net content.r9cdn.net | Other | 328ms | 47 KB | 57% | $6/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 240ms | 186 KB | 53% | $4/mo | Costly |
(program):2 (program):2 | Other | 192ms | 0 KB | — | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 191ms | 172 KB | 37% | $3/mo | Optional |
content.r9cdn.net content.r9cdn.net | Other | 123ms | 576 KB | 46% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 95ms | 144 KB | 39% | $2/mo | Optional |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 86ms | 70 KB | 54% | $1/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 81ms | 106 KB | 55% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 81ms | 129 KB | 47% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 76ms | 134 KB | 45% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 72ms | 168 KB | 35% | $1/mo | Optional |
content.r9cdn.net content.r9cdn.net | Other | 70ms | 26 KB | — | $1/mo | Optional |
ads.pubmatic.com ads.pubmatic.com | Other | 70ms | 136 KB | 65% | $1/mo | Optional |
These scripts may cost more than they're worth
- content.r9cdn.net adds 1390ms and costs ~$24/month
- Unattributable adds 1204ms and costs ~$21/month
- www.kayak.com adds 1144ms and costs ~$20/month
- content.r9cdn.net adds 328ms and costs ~$6/month
- securepubads.g.doubleclick.net adds 240ms and costs ~$4/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
content.r9cdn.net takes 1390ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 1204ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.kayak.com takes 1144ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
content.r9cdn.net takes 328ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
57% of content.r9cdn.net's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
securepubads.g.doubleclick.net takes 240ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
53% of securepubads.g.doubleclick.net's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
54% of fundingchoicesmessages.google.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
55% of analytics.tiktok.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
65% of ads.pubmatic.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev