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.
4.03 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.06 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
986 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.044
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.74 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.
14.35 s
Page Load Progression
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS Execution CostAction3447ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 451ms | 38ms | 0ms | 3rd |
| https://js.hs-analytics.net/analytics/1776814800000/4532585.js | 436ms | 335ms | 12ms | 3rd |
| https://www.workable.com/ | 407ms | 48ms | 6ms | 3rd |
| https://www.workable.com/_next/static/chunks/framework-f85f8da102d2e9df.js | 398ms | 380ms | 15ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-035MRSECEN&cx=c>m=4e64h1 | 395ms | 296ms | 39ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P7695C | 294ms | 239ms | 49ms | 3rd |
| https://ob.esnlocco.com/i/04bbbf57c65e96d995cebeed992ed634.js | 265ms | 223ms | 10ms | 3rd |
| https://www.workable.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 223ms | 214ms | 2ms | 3rd |
| https://www.workable.com/_next/static/chunks/pages/_app-f92f5484f5a48ea6.js | 159ms | 91ms | 23ms | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-870893663&cx=c>m=4e64h1 | 148ms | 120ms | 28ms | 3rd |
Showing top 10 of 14 scripts
DJS BundlesAction41 scripts, 417 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtm.js?id=GTM-5P7695C | 179 KB | 74 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/destination?id=AW-870893663&cx=c>m=4e64h1 | 145 KB | 71 KB (49%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-035MRSECEN&cx=c>m=4e64h1 | 175 KB | 64 KB (37%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/pages/_app-f92f5484f5a48ea6.js | 101 KB | 48 KB (48%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/1040-451e23e13c5654d3.js | 0 KB | 45 KB (76%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/1040-451e23e13c5654d3.js | 22 KB | 45 KB (76%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/4cd9a42b-428ae77da371757b.js | 45 KB | 27 KB (60%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/pages/demo-c1dc20e610fe2308.js | 0 KB | 21 KB (92%) | ✓ | 3rd |
| https://www.workable.com/_next/static/chunks/pages/demo-c1dc20e610fe2308.js | 8 KB | 21 KB (92%) | ✓ | 3rd |
| https://www.workable.com/_next/static/5haGwsFodu68Ve-6HDoMW/_buildManifest.js | 3 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 InventoryAction101 resources · 1.5 MB · 417 KB savings availableFIX
~416.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 101 resources | 1.5 MiB | ||||||
BPage Weight Budget1.5 MB transferred, 101 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
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
CImage OptimizationAction20 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
BHTTP Cachingno-cacheREVIEW
no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (113 KB)PASS
Web fonts
3
113 KB total
Render-blocking
0
of 3
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 Hints22 hints, 0 missing preconnectsPASS
Current Resource Hints
22 resource hints configured
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall101 requests over 4891msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 451ms | 0 KB | — | $6/mo | Costly |
HubSpot Analytics js.hs-analytics.net | Analytics | 436ms | 44 KB | — | $6/mo | Costly |
www.workable.com www.workable.com | Other | 407ms | 49 KB | — | $5/mo | Costly |
www.workable.com www.workable.com | Other | 398ms | 45 KB | — | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 395ms | 175 KB | 37% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 294ms | 179 KB | 41% | $4/mo | Costly |
ob.esnlocco.com ob.esnlocco.com | Other | 265ms | 45 KB | — | $4/mo | Costly |
www.workable.com www.workable.com | Other | 223ms | 0 KB | — | $3/mo | Costly |
www.workable.com www.workable.com | Other | 159ms | 101 KB | 48% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 148ms | 145 KB | 49% | $2/mo | Optional |
www.workable.com www.workable.com | Other | 98ms | 36 KB | — | $1/mo | Optional |
obs.esnlocco.com obs.esnlocco.com | Other | 68ms | 2 KB | — | $1/mo | Optional |
js.hubspot.com js.hubspot.com | Other | 53ms | 28 KB | — | $1/mo | Optional |
www.workable.com www.workable.com | Other | 52ms | 1 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 451ms and costs ~$6/month
- HubSpot Analytics adds 436ms and costs ~$6/month
- www.workable.com adds 407ms and costs ~$5/month
- www.workable.com adds 398ms and costs ~$5/month
- Google Tag Manager adds 395ms and costs ~$5/month
- Google Tag Manager adds 294ms and costs ~$4/month
- ob.esnlocco.com adds 265ms and costs ~$4/month
- www.workable.com adds 223ms 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
Unattributable takes 451ms 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
HubSpot Analytics takes 436ms 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.workable.com takes 407ms 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.workable.com 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 395ms 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 294ms 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
ob.esnlocco.com takes 265ms 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.workable.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