Performance
· 17 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.
2.83 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.35 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.12 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.035
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.82 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.
27.49 s
Page Load Progression
FPage Weight BudgetAction5.4 MB transferred, 133 requestsFIX
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
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
Subset fonts to include only used characters, or switch to system font stacks.
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.
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 CostAction15597ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.conviva.ai/ | 7747ms | 18ms | 7ms | 3rd |
| https://www.conviva.ai/wp-content/themes/conviva2025/dist/js/site.js?ver=2.0.16 | 2847ms | 1178ms | 91ms | 3rd |
| Unattributable | 1682ms | 138ms | 0ms | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js | 573ms | 244ms | 62ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KSF5BK8 | 488ms | 383ms | 70ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-688463398&cx=c>m=4e64f0 | 428ms | 376ms | 47ms | 3rd |
| https://www.conviva.ai/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 | 398ms | 260ms | 11ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7CYPQVYLTP | 314ms | 222ms | 68ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-4NDJDJT1QM&cx=c>m=4e64f0 | 274ms | 192ms | 57ms | 3rd |
| https://www.conviva.com/wp-content/themes/conviva2025/dist/js/convivaAppTracker.js | 223ms | 74ms | 60ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction36 scripts, 719 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-7CYPQVYLTP&cx=c>m=4e64f0 | 176 KB | 115 KB (65%) | ✓ | 3rd |
| https://www.conviva.ai/wp-content/themes/conviva2025/dist/js/site.js?ver=2.0.16 | 177 KB | 85 KB (48%) | ✗ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KSF5BK8 | 174 KB | 81 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-688463398&cx=c>m=4e64f0 | 146 KB | 80 KB (55%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7CYPQVYLTP | 176 KB | 69 KB (39%) | ✓ | 3rd |
| https://cdn.cookielaw.org/scripttemplates/202511.1.0/otBannerSdk.js | 124 KB | 66 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-4NDJDJT1QM&cx=c>m=4e64f0 | 157 KB | 64 KB (41%) | ✓ | 3rd |
| https://unpkg.com/@lottiefiles/lottie-player@0.4.0/dist/lottie-player.js?ver=1 | 77 KB | 64 KB (83%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=UA-38467132-1 | 116 KB | 61 KB (52%) | ✓ | 3rd |
| https://www.conviva.ai/wp-includes/js/dist/vendor/react-dom.min.js?ver=18.3.1.1 | 42 KB | 36 KB (87%) | ✓ | 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 InventoryAction133 resources · 5.4 MB · 719 KB savings availableFIX
~719.1 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 133 resources | 5.4 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
CImage OptimizationAction52 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
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
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 Loading4 fonts (612 KB)PASS
Web fonts
4
612 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Convert to woff2 for ~30% smaller file size
- 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 ~490 KB and ~980 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource Hints3 hints, 0 missing preconnectsPASS
Current Resource Hints
3 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall133 requests over 3370msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.conviva.ai www.conviva.ai | Other | 7747ms | 32 KB | — | $103/mo | Costly |
www.conviva.ai www.conviva.ai | Other | 2847ms | 177 KB | 48% | $38/mo | Costly |
Unattributable Unattributable | Other | 1682ms | 0 KB | — | $22/mo | Costly |
OneTrust cdn.cookielaw.org | Consent | 573ms | 124 KB | 53% | $8/mo | Essential |
Google Tag Manager www.googletagmanager.com | Tag Manager | 488ms | 174 KB | 46% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 428ms | 146 KB | 55% | $6/mo | Costly |
www.conviva.ai www.conviva.ai | Other | 398ms | 31 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 314ms | 176 KB | 39% | $4/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 274ms | 157 KB | 41% | $4/mo | Costly |
www.conviva.com www.conviva.com | Other | 223ms | 1 KB | — | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 221ms | 116 KB | 52% | $3/mo | Costly |
www.conviva.ai www.conviva.ai | Other | 99ms | 6 KB | — | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 99ms | 176 KB | 65% | $1/mo | Optional |
unpkg unpkg.com | CDN | 92ms | 77 KB | 83% | $1/mo | Optional |
www.conviva.ai www.conviva.ai | Other | 57ms | 73 KB | — | $1/mo | Optional |
Google Analytics www.google-analytics.com | Analytics | 55ms | 21 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.conviva.ai adds 7747ms and costs ~$103/month
- www.conviva.ai adds 2847ms and costs ~$38/month
- Unattributable adds 1682ms and costs ~$22/month
- Google Tag Manager adds 488ms and costs ~$6/month
- Google Tag Manager adds 428ms and costs ~$6/month
- www.conviva.ai adds 398ms and costs ~$5/month
- Google Tag Manager adds 314ms and costs ~$4/month
- Google Tag Manager adds 274ms and costs ~$4/month
- www.conviva.com adds 223ms and costs ~$3/month
- Google Tag Manager adds 221ms 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.conviva.ai takes 7747ms 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.conviva.ai takes 2847ms 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 1682ms 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 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
Google Tag Manager takes 488ms 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
Google Tag Manager takes 428ms 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
55% of Google Tag Manager'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
www.conviva.ai takes 398ms 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
Google Tag Manager takes 314ms 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
Google Tag Manager takes 274ms 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.conviva.com takes 223ms 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
Google Tag Manager takes 221ms 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
52% of Google Tag Manager'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 Google Tag Manager'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
83% of unpkg'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