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.
1.08 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.63 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
293 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.58 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
2.79 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction14 scripts, 458 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 | 188 KB | 140 KB (75%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otBannerSdk.js | 124 KB | 74 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8KB21M3LHB&cx=c>m=4e64k0 | 166 KB | 65 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64k0 | 123 KB | 61 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0 | 151 KB | 60 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 139 KB | 57 KB (41%) | ✓ | 3rd |
| https://www.brides.com/static/4.210.0/cache/eNp9k1FugzAMhi-0LIfYw54mVVovYBJDXUKMYoeKnn6h2trSBR5AxN8fO7F_rCgoOTtA1ID2LFYTOHyz67jjYeSIUcUGmDnrojyLcSd0_au4oMDg0VeAY-4JpUKyUiCtszaaPex52OXLlXqK3a5owug5WT0l1hLaSIMGvGwyd5kqbCgfpkkI_chUWniXFNYgZJ13DxbgOgtdsXSbY0vdqyRQI2tdKYJJ0Clx3Jmkk9TeXrUzw9zUejBCh2YivOzk7XS4jTqQ681f72u5ciO5qYCPr8Mjyj4HlA2HPCD4L9RETo5LQUxVTb61xLSBOb0uaxu-A2sVfB6Oy1NDCqlDXdwm0GIg0ZpK3NpID5KwODHj8V_fnu_6awUDI61Xd_nTPEqhZVc36qZ15D3HCSmcyu8pP5_BiRw.min.js | 30 KB | — | ✓ | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 | 7 KB | — | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/otSDKStub.js | 9 KB | — | ✓ | 3rd |
| https://www.brides.com/static/4.210.0/cache/eNqlUtGSgzAI_KHL5ZtQMaWHxCGobb_-sLmZWu34ck-BHRZ2CbEYGLVxADHGeC1x8CDMIMQMobSamb_ie1WbhzELipVIYqgCHDvsUVf-M1DsXqTcTYxlyzK9Beh7YgLDYJAS6h5lkp-guChZbez8AbXFs7oTpXirSulROWXteQD_3SC4f5jYwshTIjlswTkMj3uA14I2MxLnxpd5QejcdH0-1S3UJfS3mcyylKg4I3Co6Xt24khwKYzmDkKhJNN4RD4NF5gpOeiTqsLgyCb8xOmzDm4PBdWVFQRtL7v07MoGSM_jTNSf3dVMHeZwXUaG-3o0f8G-M1NTP6J8N6mg_QKliSno.min.js | 16 KB | — | ✓ | 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 InventoryAction41 resources · 1.8 MB · 458 KB savings availableFIX
~457.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 41 resources | 1.8 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CPage Weight BudgetAction1.8 MB transferred, 41 requestsREVIEW
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
BImage Optimization9 images, 0 KB saveableREVIEW
CJS Execution CostAction1317ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otGPP.js | 209ms | 177ms | 6ms | 3rd |
| https://www.brides.com/ | 208ms | 22ms | 7ms | 3rd |
| Unattributable | 151ms | 5ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 143ms | 118ms | 21ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31097945 | 134ms | 91ms | 29ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8KB21M3LHB&cx=c>m=4e64k0 | 127ms | 103ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0 | 106ms | 84ms | 21ms | 3rd |
| https://www.brides.com/static/4.210.0/cache/eNp9k1FugzAMhi-0LIfYw54mVVovYBJDXUKMYoeKnn6h2trSBR5AxN8fO7F_rCgoOTtA1ID2LFYTOHyz67jjYeSIUcUGmDnrojyLcSd0_au4oMDg0VeAY-4JpUKyUiCtszaaPex52OXLlXqK3a5owug5WT0l1hLaSIMGvGwyd5kqbCgfpkkI_chUWniXFNYgZJ13DxbgOgtdsXSbY0vdqyRQI2tdKYJJ0Clx3Jmkk9TeXrUzw9zUejBCh2YivOzk7XS4jTqQ681f72u5ciO5qYCPr8Mjyj4HlA2HPCD4L9RETo5LQUxVTb61xLSBOb0uaxu-A2sVfB6Oy1NDCqlDXdwm0GIg0ZpK3NpID5KwODHj8V_fnu_6awUDI61Xd_nTPEqhZVc36qZ15D3HCSmcyu8pP5_BiRw.min.js | 101ms | 73ms | 4ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64k0 | 78ms | 62ms | 14ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202510.2.0/otBannerSdk.js | 59ms | 27ms | 25ms | 3rd |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (80 KB)PASS
Web fonts
4
80 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall41 requests over 2169msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
OneTrust cdn.cookielaw.org | Consent | 209ms | 22 KB | — | $3/mo | Essential |
www.brides.com www.brides.com | Other | 208ms | 100 KB | — | $3/mo | Costly |
Unattributable Unattributable | Other | 151ms | 0 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 143ms | 139 KB | 41% | $2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 134ms | 188 KB | 75% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 127ms | 166 KB | 39% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 106ms | 151 KB | 40% | $1/mo | Optional |
www.brides.com www.brides.com | Other | 101ms | 30 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 78ms | 123 KB | 50% | $1/mo | Optional |
OneTrust cdn.cookielaw.org | Consent | 59ms | 124 KB | 60% | $1/mo | Essential |
These scripts may cost more than they're worth
- www.brides.com adds 208ms and costs ~$3/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
www.brides.com takes 208ms 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
75% 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
60% of OneTrust'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