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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
81
GRADE
B
FIX
3
REVIEW
2
PASS
10
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
54
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.18 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.71 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.62 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.005

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.19 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.

10.95 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
10 PASS 2 REVIEW 3 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (1.0 MiB of 1.0 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5214ms total JS execution
FIX
5214ms total JS execution
Warning::
https://www.toptal.com/: 1061ms CPU time
Warning::
https://frontier-assets.toptal.com/13318.3c6824fd4...: 1048ms CPU time
Warning::
Unattributable: 1043ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-K4W...: 493ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=UA-211...: 467ms CPU time
Warning::
Third-party scripts: 5214ms (100% of total)

Main Thread Breakdown

Script Evaluation 51% Other 25% Style & Layout 9% Script Parsing & Compilation 7% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://www.toptal.com/1061ms81ms6ms3rd
https://frontier-assets.toptal.com/13318.3c6824fd4549baed.js1048ms868ms21ms3rd
Unattributable1043ms18ms0ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-K4WD79L493ms393ms87ms3rd
https://www.googletagmanager.com/gtag/js?id=UA-21104039-1467ms406ms53ms3rd
https://frontier-assets.toptal.com/home.ba6d23185955c80d.js390ms371ms13ms3rd
https://www.googletagmanager.com/gtag/js?id=G-PRVX9NXCW3&cx=c&gtm=4e64h1353ms259ms87ms3rd
https://frontier-assets.toptal.com/33685.480a66a4cd9095c5.js154ms145ms5ms3rd
https://frontier-assets.toptal.com/64593.5755143167d706ba.js147ms53ms27ms3rd
https://www.google-analytics.com/analytics.js59ms48ms10ms3rd
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
37 images, 0 KB saveable
REVIEW
37 images, 0 KB saveable
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.toptal.io/images?url=https%3A%2F%2F... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
37 images 225 KB
0 oversized -0 KB
22 legacy format
25 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Set explicit width and height to prevent CLS.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

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.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

C
JS Bundles
Action
31 scripts, 197 KB unused
REVIEW
31 scripts, 197 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-PRVX...: 68 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-K4W...: 66 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=UA-211...: 63 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 197 KB
197 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-PRVX9NXCW3&cx=c&gtm=4e64h1173 KB68 KB (39%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-K4WD79L171 KB66 KB (39%)✓3rd
https://www.googletagmanager.com/gtag/js?id=UA-21104039-1115 KB63 KB (55%)✓3rd
https://frontier-assets.toptal.com/44272.85c2dc2e77acee19.js11 KB—✓3rd
https://frontier-assets.toptal.com/73838.c80ee54b31e11e29.js8 KB—✓3rd
https://frontier-assets.toptal.com/22404.4f98d6c753dcfc7c.js5 KB—✓3rd
https://frontier-assets.toptal.com/91168.49bbe594a196b542.js2 KB—✓3rd
https://frontier-assets.toptal.com/11251.b7205bfc6c98ce32.js2 KB—✓3rd
https://frontier-assets.toptal.com/64593.5755143167d706ba.js54 KB—✓3rd
https://frontier-assets.toptal.com/19924.9fc0e42422407cad.js8 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

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.

Why this matters

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.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

A
Page Weight Budget
1.0 MB transferred, 81 requests
PASS
1.0 MB transferred, 81 requests
Info::
Page weighs 3.0 MB (1.0 MB transferred)
Warning::
JavaScript is 725 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 725 KB
Info::
81 HTTP requests
Info::
Estimated 0.21 g CO2 per page load
1.0 MB / 2.4 MB budget
1.0 MB transferred
81 requests
0.21 g CO2 per page load
JavaScript 724.7 KiB 69%
Images 225.1 KiB 22%
HTML 65.8 KiB 6%
Other 25.0 KiB 2%
Other 2.0 KiB 0%
Other 523 B 0%
CSS 0 B 0%
Fonts 0 B 0%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
4 fonts (0 KB)
PASS
4 fonts (0 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

0 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 2.2 s LCP 4.7 shttps://frontier-assets.toptal.com/bc447dcd2473a499.woff2bc447dcd2473a499.woff2 https://frontier-assets.toptal.com/bc447dcd2473a499.woff2 — 0 B — 19 ms — font-display: swaphttps://frontier-assets.toptal.com/b514066e53e79bf0.woff2b514066e53e79bf0.woff2 https://frontier-assets.toptal.com/b514066e53e79bf0.woff2 — 0 B — 20 ms — font-display: swaphttps://frontier-assets.toptal.com/537cdd0465a548f0.woff2537cdd0465a548f0.woff2 https://frontier-assets.toptal.com/537cdd0465a548f0.woff2 — 0 B — 20 ms — font-display: swaphttps://frontier-assets.toptal.com/0d334d6378eced47.woff20d334d6378eced47.woff2 https://frontier-assets.toptal.com/0d334d6378eced47.woff2 — 0 B — 19 ms — font-display: swap
bc447dcd2473a499.woff2 woff2 swap
Size 0 KB
Load time 19 ms
Start 93 ms
Risk FOUT — text flashes from fallback to web font
b514066e53e79bf0.woff2 woff2 swap
Size 0 KB
Load time 20 ms
Start 93 ms
Risk FOUT — text flashes from fallback to web font
537cdd0465a548f0.woff2 woff2 swap
Size 0 KB
Load time 20 ms
Start 94 ms
Risk FOUT — text flashes from fallback to web font
0d334d6378eced47.woff2 woff2 swap
Size 0 KB
Load time 19 ms
Start 95 ms
Risk FOUT — text flashes from fallback to web font
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 Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
81 resources · 1.0 MB · 197 KB savings available
PASS
81 resources · 1.0 MB · 197 KB savings available
Warning::
Page weight 19 KB over 1MB target
Got: 1.0 MB Expected: ≤ 1 MB
Info::
~197 KB of savings available
Warning::
80 third-party resources (100% of weight)
81 resources · 1.0 MiB · 80 third-party 19.2 KiB over 1MB target
JavaScript 72% · 748.4 KiB
Image 22% · 226.3 KiB
Document 6% · 65.8 KiB
Other 0% · 2.7 KiB
Font 0% · 0 B
CSS 0% · 0 B

~197.4 KiB of savings available

Remove unused JavaScript: 197.4 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
81 requests over 2490ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 2.2 s LCP 4.7 shttps://toptal.com// https://toptal.com/ — 301 — 173 B — 23 ms — h3https://www.toptal.com/www.toptal.com/ https://www.toptal.com/ — 200 — 65.8 KiB — 73 ms — h3https://frontier-assets.toptal.com/tw-2a9d5a42a71c38301661.cssfrontier-assets.toptal.com/tw-2a9d5... https://frontier-assets.toptal.com/tw-2a9d5a42a71c38301661.css — 200 — 0 B — 19 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10753866%2Ffile%2Foptimized%2FCasey%2520Arrington-f4567edd26d7d39f48974a84c0ea0212.png&width=1024assets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10753866%2Ffile%2Foptimized%2FCasey%2520Arrington-f4567edd26d7d39f48974a84c0ea0212.png&width=1024 — 200 — 0 B — 32 ms — h3https://frontier-assets.toptal.com/bc447dcd2473a499.woff2frontier-assets.toptal.com/bc447dcd... https://frontier-assets.toptal.com/bc447dcd2473a499.woff2 — 200 — 0 B — 19 ms — h3https://frontier-assets.toptal.com/b514066e53e79bf0.woff2frontier-assets.toptal.com/b514066e... https://frontier-assets.toptal.com/b514066e53e79bf0.woff2 — 200 — 0 B — 20 ms — h3https://frontier-assets.toptal.com/537cdd0465a548f0.woff2frontier-assets.toptal.com/537cdd04... https://frontier-assets.toptal.com/537cdd0465a548f0.woff2 — 200 — 0 B — 20 ms — h3https://frontier-assets.toptal.com/0d334d6378eced47.woff2frontier-assets.toptal.com/0d334d63... https://frontier-assets.toptal.com/0d334d6378eced47.woff2 — 200 — 0 B — 19 ms — h3https://frontier-assets.toptal.com/aa71972a2df79f25.cssfrontier-assets.toptal.com/aa71972a... https://frontier-assets.toptal.com/aa71972a2df79f25.css — 200 — 0 B — 16 ms — 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h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10753857%2Ffile%2Foptimized%2FMeta-75682f29cf7f079351c52f0a9657bb6d.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10753857%2Ffile%2Foptimized%2FMeta-75682f29cf7f079351c52f0a9657bb6d.svg — 200 — 1.7 KiB — 91 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10819143%2Ffile%2Foptimized%2FSavannah%2520Enright%2520800x600-ccd3a53c58dbf1bb4c082dca37f59460.png&width=360assets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10819143%2Ffile%2Foptimized%2FSavannah%2520Enright%2520800x600-ccd3a53c58dbf1bb4c082dca37f59460.png&width=360 — 200 — 6.0 KiB — 91 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10819145%2Ffile%2Foptimized%2Fbcg-efa38808d1ceb491b2b088842a76a9ec.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10819145%2Ffile%2Foptimized%2Fbcg-efa38808d1ceb491b2b088842a76a9ec.svg — 200 — 1.8 KiB — 91 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10781529%2Ffile%2Foptimized%2FAndre%2520N.%2520Walker-9fa82d13dbbaf35b959a8a4c90741f53.png&width=360assets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10781529%2Ffile%2Foptimized%2FAndre%2520N.%2520Walker-9fa82d13dbbaf35b959a8a4c90741f53.png&width=360 — 200 — 6.3 KiB — 89 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10781528%2Ffile%2Foptimized%2FUber%2520Logo-775cd1590f9f7384ab6c0b50d66ff068.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10781528%2Ffile%2Foptimized%2FUber%2520Logo-775cd1590f9f7384ab6c0b50d66ff068.svg — 200 — 2.4 KiB — 117 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10767367%2Ffile%2Foptimized%2FDanielle%2520Thompson-799b595451eceaf1b6aeefd4c99a9afa.png&width=360assets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10767367%2Ffile%2Foptimized%2FDanielle%2520Thompson-799b595451eceaf1b6aeefd4c99a9afa.png&width=360 — 200 — 8.3 KiB — 122 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10767369%2Ffile%2Foptimized%2FBlackboard__262D3D-947bd23ad0a95ff1db96a93bebed61de.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fimage%2F10767369%2Ffile%2Foptimized%2FBlackboard__262D3D-947bd23ad0a95ff1db96a93bebed61de.svg — 200 — 2.3 KiB — 114 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F7027c187f96c0773.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F7027c187f96c0773.svg — 200 — 740 B — 116 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2Fbc0547ba73046902.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2Fbc0547ba73046902.svg — 200 — 734 B — 115 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F78d555213768e665.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F78d555213768e665.svg — 200 — 710 B — 115 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F5fcbbd7dd7e5d2e7.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F5fcbbd7dd7e5d2e7.svg — 200 — 687 B — 114 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F1d189a5352fbf3a6.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2F1d189a5352fbf3a6.svg — 200 — 736 B — 115 ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2Ffe1859a927e8aa7c.svgassets.toptal.io/images?url=https%3... 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h3https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fnewsweek_banner_section%2F11048311%2Fshowcase_image_mobile%2Foptimized%2Fshowcase-image-mobile%25202%2520%25281%2529-2ba5fefe91de754d3391c8acaf41359a.pngassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Fbs-uploads.toptal.io%2Fblackfish-uploads%2Fcomponents%2Fnewsweek_banner_section%2F11048311%2Fshowcase_image_mobile%2Foptimized%2Fshowcase-image-mobile%25202%2520%25281%2529-2ba5fefe91de754d3391c8acaf41359a.png — 200 — 123.1 KiB — 109 ms — h3https://frontier-assets.toptal.com/24142.b87f8d5ed8746e97.jsfrontier-assets.toptal.com/24142.b8... https://frontier-assets.toptal.com/24142.b87f8d5ed8746e97.js — 200 — 7.6 KiB — 29 ms — h3https://frontier-assets.toptal.com/83621.78cc35f8c2457864.jsfrontier-assets.toptal.com/83621.78... https://frontier-assets.toptal.com/83621.78cc35f8c2457864.js — 200 — 8.8 KiB — 31 ms — 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ms — h3https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2Fe76d71d8cb569a86.svgassets.toptal.io/images?url=https%3... https://assets.toptal.io/images?url=https%3A%2F%2Ffrontier-assets.toptal.com%2Fe76d71d8cb569a86.svg — 200 — 577 B — 22 ms — h3https://www.toptal.com/api/cms/sessionswww.toptal.com/api/cms/sessions https://www.toptal.com/api/cms/sessions — 200 — 741 B — 123 ms — h3https://frontier-assets.toptal.com/70225.2dc55cfa89b60666.jsfrontier-assets.toptal.com/70225.2d... https://frontier-assets.toptal.com/70225.2dc55cfa89b60666.js — 200 — 9.5 KiB — 16 ms — h3https://frontier-assets.toptal.com/70969.c292006f211a8594.jsfrontier-assets.toptal.com/70969.c2... https://frontier-assets.toptal.com/70969.c292006f211a8594.js — 200 — 7.8 KiB — 22 ms — h3https://frontier-assets.toptal.com/16523.0253fee46fda2ead.jsfrontier-assets.toptal.com/16523.02... https://frontier-assets.toptal.com/16523.0253fee46fda2ead.js — 200 — 1.4 KiB — 21 ms — h3https://appinfo.toptal.com/script.jsappinfo.toptal.com/script.js https://appinfo.toptal.com/script.js — 200 — 829 B — 134 ms — h3https://www.googletagmanager.com/gtm.js?id=GTM-K4WD79Lwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-K4WD79L — 200 — 170.9 KiB — 53 ms — h2https://www.toptal.com/_info.json?share_path=%2Fwww.toptal.com/_info.json?share_pat... https://www.toptal.com/_info.json?share_path=%2F — 200 — 733 B — 386 ms — h3https://www.googletagmanager.com/gtag/js?id=G-PRVX9NXCW3&cx=c&gtm=4e64h1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-PRVX9NXCW3&cx=c&gtm=4e64h1 — 200 — 173.1 KiB — 33 ms — h2https://www.googletagmanager.com/gtag/js?id=UA-21104039-1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=UA-21104039-1 — 200 — 115.3 KiB — 22 ms — h3https://pagead2.googlesyndication.com/ccm/collect?rcb=8&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fwww.toptal.com%2F&scrsrc=www.googletagmanager.com&rnd=498103347.1776806594&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64h1v79675876za200zd79675876xea&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115616985~115938466~115938469~117266400&apve=1&apvf=f&apvc=1&tft=1776806593551&tfd=1916pagead2.googlesyndication.com/ccm/c... https://pagead2.googlesyndication.com/ccm/collect?rcb=8&frm=0&ae=g&en=page_view&dl=https%3A%2F%2Fwww.toptal.com%2F&scrsrc=www.googletagmanager.com&rnd=498103347.1776806594&navt=n&npa=1&ep.ads_data_redaction=0&gtm=45He64h1v79675876za200zd79675876xea&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115616985~115938466~115938469~117266400&apve=1&apvf=f&apvc=1&tft=1776806593551&tfd=1916 — 200 — 21 B — 37 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-PRVX9NXCW3&gtm=45je64h1v870692886z879675876za20gzb79675876zd79675876&_p=1776806592531&gcs=G100&gcd=13p3pPp2p5l1&npa=1&dma_cps=-&dma=1&_eu=AAAAAGA&are=1&cid=1031233630.1776806594&frm=0&pscdl=denied&rcb=6&sr=412x823&uaa=&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~117266401&sid=1776806592&sct=1&seg=0&dl=https%3A%2F%2Fwww.toptal.com%2F&dt=Toptal%20-%20Hire%20Talent%20from%20the%20Top%203%25&en=page_view&_fv=1&_nsi=1&_ss=1&tfd=1940region1.google-analytics.com/g/coll... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 5214ms · 678KB · $69/mo
www.toptal.com
Other
Costly
Execution 1061ms
Transfer 66 KB
Monthly Cost $14/mo
frontier-assets.toptal.com
Other
Costly
Execution 1048ms
Transfer 38 KB
Monthly Cost $14/mo
Unattributable
Other
Costly
Execution 1043ms
Transfer 0 KB
Monthly Cost $14/mo
Google Tag Manager
Tag Manager
Costly
Execution 493ms
Transfer 171 KB
Unused 39%
Monthly Cost $7/mo
Google Tag Manager
Tag Manager
Costly
Execution 467ms
Transfer 115 KB
Unused 55%
Monthly Cost $6/mo
frontier-assets.toptal.com
Other
Costly
Execution 390ms
Transfer 28 KB
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 353ms
Transfer 173 KB
Unused 39%
Monthly Cost $5/mo
frontier-assets.toptal.com
Other
Optional
Execution 154ms
Transfer 12 KB
Monthly Cost $2/mo
frontier-assets.toptal.com
Other
Optional
Execution 147ms
Transfer 54 KB
Monthly Cost $2/mo
Google Analytics
Analytics
Optional
Execution 59ms
Transfer 21 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.toptal.com adds 1061ms and costs ~$14/month
  • frontier-assets.toptal.com adds 1048ms and costs ~$14/month
  • Unattributable adds 1043ms and costs ~$14/month
  • Google Tag Manager adds 493ms and costs ~$7/month
  • Google Tag Manager adds 467ms and costs ~$6/month
  • frontier-assets.toptal.com adds 390ms and costs ~$5/month
  • Google Tag Manager adds 353ms and costs ~$5/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

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.toptal.com takes 1061ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

frontier-assets.toptal.com takes 1048ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 1043ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 493ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 467ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

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.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

frontier-assets.toptal.com takes 390ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Google Tag Manager takes 353ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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