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.
2.38 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
6.95 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4.90 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.006
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
7.03 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.
22.86 s
Page Load Progression
FPage Weight BudgetAction2.9 MB transferred, 69 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
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction9515ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.self.com/verso/static/2880.865952f35702ddfb7152.js | 2894ms | 2102ms | 142ms | 3rd |
| https://www.self.com/verso/static/presenter-bundles.d7384530fdc10d8b1f48.js | 1684ms | 1627ms | 10ms | 3rd |
| https://www.self.com/ | 1269ms | 50ms | 192ms | 3rd |
| https://privacy.condenastdigital.com/fides.js?property_id=FDS-ZDLTOX | 742ms | 474ms | 211ms | 3rd |
| Unattributable | 524ms | 21ms | 0ms | 3rd |
| https://www.self.com/verso/static/1113.e5d6201548a2ec9583d0.js | 469ms | 186ms | 199ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KSHC4S5&l=dataLayer | 437ms | 340ms | 47ms | 3rd |
| https://www.self.com/2chApDZEcK4Avel2-nmA7weBzvLoyTn3WvZ7s1sIXYy4Gk5pYp2EIuMWNw3EByMRkmLkRZ8vhqTv0yumzDoWd3my2KSm6wLcoXg_eJ58gJxJZ0K9qmOlNGtS73IQtfew | 314ms | 259ms | 13ms | 3rd |
| https://www.self.com/z8XtzeQ97nkixwLcYI2fbQFclXGmgCPAPGlsN1wdQtEchbeNBhoBk5vRCdXjuoIPiuVWsAnvi1WR-1yPb9b-jSMmF6voudcNWJnViO1bru8CO__isJ5i9fpwjnF-wu_hK4NFP5Buz8zg | 223ms | 214ms | 2ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 194ms | 147ms | 45ms | 3rd |
Showing top 10 of 16 scripts
FJS BundlesAction35 scripts, 966 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.self.com/verso/static/1113.e5d6201548a2ec9583d0.js | 481 KB | 235 KB (49%) | ✓ | 3rd |
| https://www.self.com/verso/static/2880.865952f35702ddfb7152.js | 296 KB | 146 KB (50%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 145 KB (77%) | ✓ | 3rd |
| https://www.self.com/verso/static/2519.8a55e989ba5af70e92d1.js | 305 KB | 142 KB (47%) | ✓ | 3rd |
| https://www.self.com/verso/static/1292.40f59c87ae47d8b12033.js | 145 KB | 109 KB (75%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-KSHC4S5&l=dataLayer | 178 KB | 74 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-PVBXQMCR>m=4e64h1 | 120 KB | 61 KB (51%) | ✓ | 3rd |
| https://ads-static.conde.digital/production/cns/builds/self/v6.js?v=12572 | 41 KB | 32 KB (78%) | ✓ | 3rd |
| https://www.self.com/2chApDZEcK4Avel2-nmA7weBzvLoyTn3WvZ7s1sIXYy4Gk5pYp2EIuMWNw3EByMRkmLkRZ8vhqTv0yumzDoWd3my2KSm6wLcoXg_eJ58gJxJZ0K9qmOlNGtS73IQtfew | 45 KB | 24 KB (53%) | ✓ | 3rd |
| https://www.self.com/verso/static/9919.fa31716fd49682d94777.js | 4 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 InventoryAction69 resources · 2.9 MB · 966 KB savings availableFIX
~966.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 69 resources | 2.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization15 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.
Performance issues directly impact user engagement and conversion rates.
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 Loading6 fonts (187 KB)PASS
Web fonts
6
187 KB total
Render-blocking
0
of 6
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 Hints2 hints, 0 missing preconnectsPASS
Current Resource Hints
2 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
Network Waterfall69 requests over 3449msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.self.com www.self.com | Other | 2894ms | 296 KB | 50% | $50/mo | Costly |
www.self.com www.self.com | Other | 1684ms | 32 KB | — | $29/mo | Costly |
www.self.com www.self.com | Other | 1269ms | 137 KB | — | $22/mo | Costly |
privacy.condenastdigital.com privacy.condenastdigital.com | Other | 742ms | 199 KB | — | $13/mo | Costly |
Unattributable Unattributable | Other | 524ms | 0 KB | — | $9/mo | Costly |
www.self.com www.self.com | Other | 469ms | 481 KB | 49% | $8/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 437ms | 178 KB | 41% | $8/mo | Costly |
www.self.com www.self.com | Other | 314ms | 45 KB | 53% | $5/mo | Costly |
www.self.com www.self.com | Other | 223ms | 9 KB | — | $4/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 194ms | 187 KB | 77% | $3/mo | Optional |
www.self.com www.self.com | Other | 186ms | 305 KB | 47% | $3/mo | Optional |
globalservices.conde.digital globalservices.conde.digital | Other | 159ms | 26 KB | — | $3/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 146ms | 120 KB | 51% | $3/mo | Optional |
www.self.com www.self.com | Other | 145ms | 16 KB | — | $2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 72ms | 34 KB | — | $1/mo | Optional |
www.self.com www.self.com | Other | 56ms | 145 KB | 75% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.self.com adds 2894ms and costs ~$50/month
- www.self.com adds 1684ms and costs ~$29/month
- www.self.com adds 1269ms and costs ~$22/month
- privacy.condenastdigital.com adds 742ms and costs ~$13/month
- Unattributable adds 524ms and costs ~$9/month
- www.self.com adds 469ms and costs ~$8/month
- Google Tag Manager adds 437ms and costs ~$8/month
- www.self.com adds 314ms and costs ~$5/month
- www.self.com adds 223ms 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
www.self.com takes 2894ms 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.self.com takes 1684ms 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.self.com takes 1269ms 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
privacy.condenastdigital.com takes 742ms 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 524ms 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.self.com takes 469ms 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 437ms 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.self.com 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
53% of www.self.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
www.self.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
77% 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
51% 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
75% of www.self.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