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.
1.29 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.45 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
57 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.310
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.72 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.
5.38 s
Page Load Progression
FPage Weight BudgetAction2.6 MB transferred, 148 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
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
DJS BundlesAction38 scripts, 461 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://js.intercomcdn.com/frame-modern.7a9f78bc.js | 193 KB | 123 KB (64%) | ✓ | 3rd |
| https://js.intercomcdn.com/vendor-modern.80eace52.js | 144 KB | 86 KB (60%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-70B7F9BMVB&cx=c>m=4e64k1h2 | 174 KB | 66 KB (38%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NHKXG4J | 178 KB | 61 KB (34%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-403552663&cx=c>m=4e64k1h2 | 146 KB | 54 KB (37%) | ✓ | 3rd |
| https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js | 57 KB | 38 KB (67%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 33 KB (34%) | ✓ | 3rd |
| https://events.flow.graph8.com/p.js | 36 KB | — | ✗ | 3rd |
| https://dynamic.criteo.com/js/ld/ld.js?a=101400 | 25 KB | — | ✓ | 3rd |
| https://assets.adobedtm.com/b590647a1ee3/72493d5bb63a/37c8e4615912/EX491c46349df54938a7f908a1f4cfec46-libraryCode_source.min.js | 15 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 InventoryAction148 resources · 2.6 MB · 461 KB savings availableFIX
~460.7 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 148 resources | 2.6 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization63 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
CJS Execution CostAction1290ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.salary.com/UtilityScripts/Seou_B2b_Index.min.js?v=1.0.0.12 | 341ms | 112ms | 1ms | 3rd |
| Unattributable | 129ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-NHKXG4J | 121ms | 104ms | 13ms | 3rd |
| https://www.redditstatic.com/ads/pixel.js | 108ms | 104ms | 1ms | 3rd |
| https://www.salary.com/ | 106ms | 8ms | 1ms | 3rd |
| https://assets.adobedtm.com/b590647a1ee3/72493d5bb63a/launch-cf399e951d71.min.js | 97ms | 84ms | 5ms | 3rd |
| https://scripts.clarity.ms/0.8.60-beta/clarity.js | 90ms | 86ms | 2ms | 3rd |
| https://js.intercomcdn.com/vendor-modern.80eace52.js | 90ms | 79ms | 10ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-403552663&cx=c>m=4e64k1h2 | 75ms | 67ms | 8ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-70B7F9BMVB&cx=c>m=4e64k1h2 | 73ms | 55ms | 11ms | 3rd |
Showing top 10 of 11 scripts
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 (352 KB)PASS
Web fonts
4
352 KB total
Render-blocking
0
of 4
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
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- 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 ~168 KB and ~336 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
Network Waterfall148 requests over 3247msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.salary.com www.salary.com | Other | 341ms | 17 KB | — | $6/mo | Costly |
Unattributable Unattributable | Other | 129ms | 0 KB | — | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 121ms | 178 KB | 34% | $2/mo | Optional |
www.redditstatic.com www.redditstatic.com | Other | 108ms | 19 KB | — | $2/mo | Optional |
www.salary.com www.salary.com | Other | 106ms | 20 KB | — | $2/mo | Optional |
assets.adobedtm.com assets.adobedtm.com | Other | 97ms | 59 KB | — | $2/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 90ms | 25 KB | — | $2/mo | Optional |
js.intercomcdn.com js.intercomcdn.com | Other | 90ms | 144 KB | 60% | $2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 75ms | 146 KB | 37% | $1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 73ms | 174 KB | 38% | $1/mo | Optional |
www.salary.com www.salary.com | Other | 60ms | 4 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- www.salary.com adds 341ms and costs ~$6/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.salary.com takes 341ms 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
60% of js.intercomcdn.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