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https://www.backblaze.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
3
REVIEW
2
PASS
7
INFO
2

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

75
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
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.
85
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.

1.24 s

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

2.74 s

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

67 ms

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

0.140

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

1.41 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.

4.07 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
14
7 PASS 2 REVIEW 3 FIX
F
Page Weight Budget
Action
5.0 MB transferred, 105 requests
FIX
5.0 MB transferred, 105 requests
Critical::
Page weighs 11.2 MB (5.0 MB transferred)
Warning::
JavaScript is 2.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.2 MB
Info::
Fonts are 1.1 MB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 1.1 MB
Warning::
105 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.1 g CO2 per page load
5.0 MB / 2.4 MB budget
5.0 MB transferred
105 requests
1.1 g CO2 per page load
JavaScript 2.2 MiB 43%
Fonts 1.1 MiB 21%
Images 897.3 KiB 17%
Other 708.9 KiB 14%
CSS 93.5 KiB 2%
Other 86.4 KiB 2%
HTML 46.6 KiB 1%
Other 3.2 KiB 0%
Other 1.2 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over 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

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

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.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (5.0 MiB of 5.0 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
F
JS Bundles
Action
20 scripts, 656 KB unused
FIX
20 scripts, 656 KB unused
Warning::
https://js.qualified.com/qualified.js?token=zhPjbc...: 268 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/kUYUkUl...: 244 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-N9N...: 77 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-KKNK...: 67 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 656 KB
656 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://js.qualified.com/qualified.js?token=zhPjbcqdXS74bK3y370 KB268 KB (73%)3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js363 KB244 KB (67%)3rd
https://www.googletagmanager.com/gtm.js?id=GTM-N9N283172 KB77 KB (45%)3rd
https://www.googletagmanager.com/gtag/js?id=G-KKNKYMVB92&cx=c&gtm=4e6460h1165 KB67 KB (40%)3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js9 KB3rd
https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js30 KB3rd
https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.5/ScrollTrigger.min.js16 KB3rd
https://d3e54v103j8qbb.cloudfront.net/js/jquery-3.5.1.min.dc5e7f18c8.js?site=63d32de856f6323a43a277f230 KB3rd
https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/js/backblaze-staging.schunk.a587b29c739e8999.js21 KB3rd
https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/js/backblaze-staging.ce45de3f.db45d0c98cc79119.js1 KB3rd

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

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

C
Image Optimization
Action
37 images, 0 KB saveable
REVIEW
37 images, 0 KB saveable
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://cdn.prod.website-files.com/63d32de856f6323... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
37 images 897 KB
0 oversized -0 KB
27 legacy format
8 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

C
JS Execution Cost
Action
1662ms total JS execution
REVIEW
1662ms total JS execution
Warning::
https://www.backblaze.com/: 336ms CPU time
Warning::
Unattributable: 322ms CPU time
Info::
https://js.qualified.com/qualified.js?token=zhPjbc...: 173ms CPU time
Info::
https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.5...: 157ms CPU time
Info::
https://ob.df1.backblaze.com/i/97c5d149fbecccd7dc7...: 140ms CPU time
Warning::
Third-party scripts: 1325ms (80% of total)

Main Thread Breakdown

Script Evaluation 40% Other 28% Style & Layout 18% Script Parsing & Compilation 8% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://www.backblaze.com/336ms24ms6ms1st
Unattributable322ms41ms0ms3rd
https://js.qualified.com/qualified.js?token=zhPjbcqdXS74bK3y173ms120ms41ms3rd
https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.5/gsap.min.js157ms15ms2ms3rd
https://ob.df1.backblaze.com/i/97c5d149fbecccd7dc763df5144f84d6.js140ms106ms4ms3rd
https://cdnjs.cloudflare.com/ajax/libs/gsap/3.12.5/ScrollTrigger.min.js124ms26ms1ms3rd
https://cdn.cookielaw.org/scripttemplates/202601.2.0/otBannerSdk.js108ms73ms13ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-N9N283104ms86ms14ms3rd
https://www.googletagmanager.com/gtag/js?id=G-KKNKYMVB92&cx=c&gtm=4e6460h180ms67ms12ms3rd
https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js66ms30ms31ms3rd

Showing top 10 of 11 scripts

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
18 fonts (1103 KB)
PASS
18 fonts (1103 KB)
Info::
18 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

18

1103 KB total

Render-blocking

0

of 18

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.2 s LCP 2.7 shttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d7141fcc43a406322047f_DMSans-Regular.ttf652d7141fcc43a406322047... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d7141fcc43a406322047f_DMSans-Regular.ttf — 55.5 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d71826bda5c056b207030_DMSans-Bold.ttf652d71826bda5c056b20703... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d71826bda5c056b207030_DMSans-Bold.ttf — 55.5 KiB — 0 ms — font-display: swapdata:application/x-font-ttf;charset=utf-8;base64,AAEAAAALAIAAAwAwT1MvMg8SBiUAAAC8AAAAYGNtYXDpP+a4AA…x-font-ttf;charset=utf-... data:application/x-font-ttf;charset=utf-8;base64,AAEAAAALAIAAAwAwT1MvMg8SBiUAAAC8AAAAYGNtYXDpP+a4AA… — 1.8 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e6272951397572c8c34_SpaceGrotesk-Medium.woff2668e9e6272951397572c8c3... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e6272951397572c8c34_SpaceGrotesk-Medium.woff2 — 35.1 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e6229faa18170c639e2_SpaceGrotesk-SemiBold.woff2668e9e6229faa18170c639e... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e6229faa18170c639e2_SpaceGrotesk-SemiBold.woff2 — 35.4 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/68702542f51f86a4b411d0bb_fa-light-300.woff268702542f51f86a4b411d0b... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/68702542f51f86a4b411d0bb_fa-light-300.woff2 — 455.0 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e62338ae31dcfe712bd_SpaceGrotesk-Regular.woff2668e9e62338ae31dcfe712b... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/668e9e62338ae31dcfe712bd_SpaceGrotesk-Regular.woff2 — 34.2 KiB — 0 ms — font-display: swaphttps://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d71790f0d072b7e7416f0_DMSans-Medium.ttf652d71790f0d072b7e7416f... https://cdn.prod.website-files.com/63d32de856f6323a43a277f2/652d71790f0d072b7e7416f0_DMSans-Medium.ttf — 55.6 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/oswald/v57/TK3iWkUHHAIjg752GT8Gl-1PKw.woff2TK3iWkUHHAIjg752GT8Gl-1... https://fonts.gstatic.com/s/oswald/v57/TK3iWkUHHAIjg752GT8Gl-1PKw.woff2 — 27.8 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/inconsolata/v37/QlddNThLqRwH-OJ1UHjlKENVzkWGVkL3GZQmAwLyya15IDhunA.woff2QlddNThLqRwH-OJ1UHjlKEN... https://fonts.gstatic.com/s/inconsolata/v37/QlddNThLqRwH-OJ1UHjlKENVzkWGVkL3GZQmAwLyya15IDhunA.woff2 — 28.4 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 34.7 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUQjIg1_i6t8kCHKm459WxRyS7m0dR9pA.woff2JTUQjIg1_i6t8kCHKm459Wx... https://fonts.gstatic.com/s/montserrat/v31/JTUQjIg1_i6t8kCHKm459WxRyS7m0dR9pA.woff2 — 36.3 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ptsans/v18/jizaRExUiTo99u79D0KExcOPIDU.woff2jizaRExUiTo99u79D0KExcO... https://fonts.gstatic.com/s/ptsans/v18/jizaRExUiTo99u79D0KExcOPIDU.woff2 — 11.2 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ptsans/v18/jizYRExUiTo99u79D0e0x8mIAjcQ-w.woff2jizYRExUiTo99u79D0e0x8m... https://fonts.gstatic.com/s/ptsans/v18/jizYRExUiTo99u79D0e0x8mIAjcQ-w.woff2 — 11.9 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ptsans/v18/jizfRExUiTo99u79B_mh0O6tLR8a8zI.woff2jizfRExUiTo99u79B_mh0O6... https://fonts.gstatic.com/s/ptsans/v18/jizfRExUiTo99u79B_mh0O6tLR8a8zI.woff2 — 11.4 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/ptsans/v18/jizdRExUiTo99u79D0e8fOydLxUd0TA7iw.woff2jizdRExUiTo99u79D0e8fOy... https://fonts.gstatic.com/s/ptsans/v18/jizdRExUiTo99u79D0e8fOydLxUd0TA7iw.woff2 — 12.1 KiB — 0 ms — font-display: swaphttps://assets.qualified.com/packs/media/Inter-Regular.f1f0c35b.woff2Inter-Regular.f1f0c35b.... https://assets.qualified.com/packs/media/Inter-Regular.f1f0c35b.woff2 — 96.9 KiB — 0 ms — font-display: swaphttps://assets.qualified.com/packs/media/Inter-SemiBold.fcb100c7.woff2Inter-SemiBold.fcb100c7... https://assets.qualified.com/packs/media/Inter-SemiBold.fcb100c7.woff2 — 103.9 KiB — 0 ms — font-display: swap
652d7141fcc43a406322047... ttf swap
Size 56 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
652d71826bda5c056b20703... ttf swap
Size 55 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
x-font-ttf;charset=utf-... unknown swap
Size 2 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
668e9e6272951397572c8c3... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
668e9e6229faa18170c639e... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
68702542f51f86a4b411d0b... woff2 swap
Size 455 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
668e9e62338ae31dcfe712b... woff2 swap
Size 34 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
652d71790f0d072b7e7416f... ttf swap
Size 56 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
TK3iWkUHHAIjg752GT8Gl-1... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
QlddNThLqRwH-OJ1UHjlKEN... woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUQjIg1_i6t8kCHKm459Wx... woff2 swap
Size 36 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
jizaRExUiTo99u79D0KExcO... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
jizYRExUiTo99u79D0e0x8m... woff2 swap
Size 12 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
jizfRExUiTo99u79B_mh0O6... woff2 swap
Size 11 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
jizdRExUiTo99u79D0e8fOy... woff2 swap
Size 12 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Inter-Regular.f1f0c35b.... woff2 swap
Size 97 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Inter-SemiBold.fcb100c7... woff2 swap
Size 104 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • 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 ~330 KB and ~660 ms

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=14400 (4 hours)
PASS
max-age=14400 (4 hours)
Info::
Cache-Control header is set
Got: max-age=14400
Info::
Effective TTL: 4 hours (max-age=14400)
Info::
Last-Modified header present
Cache-Control

max-age=14400

DirectiveValueMeaning
max-age14400Cache for 4 hours
Effective TTL: 14400 seconds
Network Waterfall
105 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
80% of JavaScript execution is third-party
First-party Third-party 1325ms · 1286KB · €21/mo
Unattributable
Other
Costly
Execution 322ms
Transfer 0 KB
Monthly Cost €5/mo
js.qualified.com
Other
Optional
Execution 173ms
Transfer 370 KB
Unused 73%
Monthly Cost €3/mo
cdnjs
CDN
Optional
Execution 157ms
Transfer 26 KB
Monthly Cost €2/mo
ob.df1.backblaze.com
Other
Optional
Execution 140ms
Transfer 45 KB
Monthly Cost €2/mo
cdnjs
CDN
Optional
Execution 124ms
Transfer 16 KB
Monthly Cost €2/mo
OneTrust
Consent
Essential
Execution 108ms
Transfer 128 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 104ms
Transfer 172 KB
Unused 45%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 80ms
Transfer 165 KB
Unused 40%
Monthly Cost €1/mo
www.gstatic.com
Other
Optional
Execution 66ms
Transfer 363 KB
Unused 67%
Monthly Cost €1/mo
obs.df1.backblaze.com
Other
Optional
Execution 53ms
Transfer 2 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 322ms and costs ~€5/month

80% 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

Unattributable takes 322ms 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

73% of js.qualified.com'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

67% of www.gstatic.com'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

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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