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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
66
GRADE
D
FIX
4
REVIEW
3
PASS
5
INFO
2

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

Mobile Desktop
26
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
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.

1.35 s

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

2.44 s

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

1.08 s

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

0.410

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

4.37 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.

9.55 s

Page Load Progression

1.3 s
2.6 s
3.9 s
5.2 s
6.4 s
7.7 s
9.0 s
10.3 s
Checks
14
5 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
10.9 MB transferred, 318 requests
FIX
10.9 MB transferred, 318 requests
Critical::
Page weighs 25.1 MB (10.9 MB transferred)
Warning::
JavaScript is 3.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 3.7 MB
Warning::
Images are 2.8 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.8 MB
Info::
Fonts are 497 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 497 KB
Warning::
318 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.3 g CO2 per page load
10.9 MB / 2.4 MB budget
10.9 MB transferred
318 requests
2.3 g CO2 per page load
JavaScript 3.7 MiB 33%
Other 2.9 MiB 27%
Images 2.8 MiB 25%
Other 937.4 KiB 8%
Fonts 497.5 KiB 4%
HTML 92.5 KiB 1%
Other 50.9 KiB 0%
Other 31.7 KiB 0%
CSS 10.6 KiB 0%
Other 2.1 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

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

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
90% third-party, 0 ms blocking
FIX
90% third-party, 0 ms blocking
Warning::
Third-party code accounts for 90% of page weight (9.9 MiB of 10.9 MiB)
Info::
Third-party blocking time is low (0 ms)
90%
First-party Third-party
F
JS Execution Cost
Action
7092ms total JS execution
FIX
7092ms total JS execution
Warning::
Unattributable: 1423ms CPU time
Warning::
https://www.mongodb.com/: 782ms CPU time
Warning::
https://js.intercomcdn.com/frame-modern.40aacdf2.j...: 680ms CPU time
Warning::
https://cdn.optimizely.com/js/5557007785132032.js: 579ms CPU time
Warning::
https://www.mongodb.com/_next/static/chunks/framew...: 480ms CPU time
Warning::
Third-party scripts: 5236ms (74% of total)

Main Thread Breakdown

Script Evaluation 54% Other 27% Style & Layout 7% Script Parsing & Compilation 6% Rendering 3%
ScriptTotalScriptingParse/CompileParty
Unattributable1423ms127ms0ms3rd
https://www.mongodb.com/782ms11ms0ms1st
https://js.intercomcdn.com/frame-modern.40aacdf2.js680ms548ms15ms3rd
https://cdn.optimizely.com/js/5557007785132032.js579ms324ms63ms3rd
https://www.mongodb.com/_next/static/chunks/framework-7586a95b0478321d.js480ms421ms13ms1st
https://www.mongodb.com/_next/static/chunks/642-baeee0de09929e75.js368ms113ms13ms1st
https://webassets.mongodb.com/_com_assets/cms/mltoya8eg17hc511u-chatbot-19-02-2026.js368ms295ms60ms3rd
https://cdn.segment.com/next-integrations/integrations/vendor/commons.59560acdd69ed701c941.js.gz328ms309ms2ms3rd
https://unpkg.com/@rive-app/canvas302ms168ms8ms3rd
https://euob.michiganrobotflower.com/sxp/i/1026a1528f8727653fd96984e7b20597.js301ms223ms6ms3rd

Showing top 10 of 24 scripts

F
JS Bundles
Action
77 scripts, 1.9 MB unused
FIX
77 scripts, 1.9 MB unused
Warning::
https://cdn.optimizely.com/js/5557007785132032.js: 382 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://webassets.mongodb.com/_com_assets/cms/mlto...: 298 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.mongodb.com/_next/static/chunks/9732e8...: 262 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://js.intercomcdn.com/frame-modern.40aacdf2.j...: 120 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-GDF...: 111 KB unused (64%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.9 MB
1949 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.optimizely.com/js/5557007785132032.js530 KB382 KB (73%)✓3rd
https://webassets.mongodb.com/_com_assets/cms/mltoya8eg17hc511u-chatbot-19-02-2026.js512 KB298 KB (58%)✓3rd
https://www.mongodb.com/_next/static/chunks/9732e8d6-75ce682f5f0e8aa1.js422 KB262 KB (62%)✓1st
https://js.intercomcdn.com/frame-modern.40aacdf2.js192 KB120 KB (63%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-GDFN&l=dataLayer172 KB111 KB (64%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-875946829145 KB105 KB (72%)✓3rd
https://www.mongodb.com/_next/static/chunks/642-baeee0de09929e75.js151 KB101 KB (67%)✓1st
https://js.intercomcdn.com/vendor-modern.df860bed.js144 KB86 KB (60%)✓3rd
https://www.mongodb.com/_next/static/chunks/ec740807-1e79f3a47a2862cc.js130 KB82 KB (64%)✓1st
https://www.mongodb.com/_next/static/chunks/pages/_app-223717bf473eb0c8.js95 KB81 KB (85%)✓1st

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

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
123 images, 0 KB saveable
REVIEW
123 images, 0 KB saveable
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/lyrm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://downloads.intercomcdn.com/i/o/qq7v0gqb/694... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjre... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjit... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mk6t... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjre... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mfe3... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjit... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjkd... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/mjit... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://images.contentstack.io/v3/assets/blt715161... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://webimages.mongodb.com/_com_assets/cms/lyrm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
123 images 2.8 MB
0 oversized -0 KB
118 legacy format
30 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

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

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
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
s-maxage=30, stale-while-revalidate
REVIEW
s-maxage=30, stale-while-revalidate
Info::
Cache-Control header is set
Got: s-maxage=30, stale-while-revalidate
Info::
CDN TTL: 30 seconds (s-maxage=30)
Info::
ETag present — enables conditional (304) responses
Cache-Control

s-maxage=30, stale-while-revalidate

DirectiveValueMeaning
s-maxage30CDN caches for 30 seconds
stale-while-revalidate—Serve stale while revalidating
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
9 fonts (497 KB)
PASS
9 fonts (497 KB)
Info::
9 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

9

497 KB total

Render-blocking

0

of 9

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 1.4 s LCP 2.4 shttps://static.mongodb.com/com/fonts/akzidenzgroteskbq_light-webfont.woff2akzidenzgroteskbq_light... https://static.mongodb.com/com/fonts/akzidenzgroteskbq_light-webfont.woff2 — 25.2 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/akzidenzgroteskbq_medium-webfont.woff2akzidenzgroteskbq_mediu... https://static.mongodb.com/com/fonts/akzidenzgroteskbq_medium-webfont.woff2 — 24.4 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/EuclidCircularA-Regular-WebXL.woff2EuclidCircularA-Regular... https://static.mongodb.com/com/fonts/EuclidCircularA-Regular-WebXL.woff2 — 44.6 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/EuclidCircularA-Medium-WebXL.woff2EuclidCircularA-Medium-... https://static.mongodb.com/com/fonts/EuclidCircularA-Medium-WebXL.woff2 — 44.9 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/MongoDBValueSerif-Regular.woff2MongoDBValueSerif-Regul... https://static.mongodb.com/com/fonts/MongoDBValueSerif-Regular.woff2 — 45.7 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/MongoDBValueSerif-Medium.woff2MongoDBValueSerif-Mediu... https://static.mongodb.com/com/fonts/MongoDBValueSerif-Medium.woff2 — 46.6 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/MongoDBValueSerif-Bold.woff2MongoDBValueSerif-Bold.... https://static.mongodb.com/com/fonts/MongoDBValueSerif-Bold.woff2 — 46.0 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/SourceCodePro-Regular.ttfSourceCodePro-Regular.ttf https://static.mongodb.com/com/fonts/SourceCodePro-Regular.ttf — 102.0 KiB — 0 ms — font-display: swaphttps://static.mongodb.com/com/fonts/SourceCodePro-Medium.ttfSourceCodePro-Medium.ttf https://static.mongodb.com/com/fonts/SourceCodePro-Medium.ttf — 118.0 KiB — 0 ms — font-display: swap
akzidenzgroteskbq_light... woff2 swap
Size 25 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
akzidenzgroteskbq_mediu... woff2 swap
Size 24 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
EuclidCircularA-Regular... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
EuclidCircularA-Medium-... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
MongoDBValueSerif-Regul... woff2 swap
Size 46 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
MongoDBValueSerif-Mediu... woff2 swap
Size 47 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
MongoDBValueSerif-Bold.... woff2 swap
Size 46 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
SourceCodePro-Regular.ttf ttf swap
Size 102 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
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
SourceCodePro-Medium.ttf ttf swap
Size 118 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
  • 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 ~176 KB and ~352 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
Network Waterfall
318 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
74% of JavaScript execution is third-party
First-party Third-party 5236ms · 2036KB · $98/mo
Unattributable
Other
Costly
Execution 1423ms
Transfer 0 KB
Monthly Cost $27/mo
js.intercomcdn.com
Other
Costly
Execution 680ms
Transfer 192 KB
Unused 63%
Monthly Cost $13/mo
Optimizely
A/B Testing
Costly
Execution 579ms
Transfer 530 KB
Unused 73%
Monthly Cost $11/mo
webassets.mongodb.com
Other
Costly
Execution 368ms
Transfer 512 KB
Unused 58%
Monthly Cost $7/mo
Segment
Analytics
Costly
Execution 328ms
Transfer 22 KB
Monthly Cost $6/mo
unpkg
CDN
Costly
Execution 302ms
Transfer 0 KB
Monthly Cost $6/mo
euob.michiganrobotflower.com
Other
Costly
Execution 301ms
Transfer 45 KB
Monthly Cost $6/mo
pathway.mongodb.com
Other
Costly
Execution 271ms
Transfer 107 KB
Unused 24%
Monthly Cost $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 210ms
Transfer 172 KB
Unused 39%
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Optional
Execution 128ms
Transfer 145 KB
Unused 36%
Monthly Cost $2/mo
obseu.michiganrobotflower.com
Other
Optional
Execution 105ms
Transfer 2 KB
Monthly Cost $2/mo
OneTrust
Consent
Essential
Execution 97ms
Transfer 104 KB
Unused 51%
Monthly Cost $2/mo
Facebook Pixel
Advertising
Optional
Execution 81ms
Transfer 95 KB
Unused 32%
Monthly Cost $2/mo
Facebook Pixel
Advertising
Optional
Execution 66ms
Transfer 37 KB
Monthly Cost $1/mo
LinkedIn Insight
Advertising
Optional
Execution 66ms
Transfer 0 KB
Monthly Cost $1/mo
Segment
Analytics
Optional
Execution 65ms
Transfer 3 KB
Monthly Cost $1/mo
Hotjar
Session Replay
Optional
Execution 58ms
Transfer 57 KB
Unused 67%
Monthly Cost $1/mo
s.dpmsrv.com
Other
Optional
Execution 57ms
Transfer 12 KB
Monthly Cost $1/mo
www.mongodb.com
Other
Optional
Execution 51ms
Transfer 0 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 1423ms and costs ~$27/month
  • js.intercomcdn.com adds 680ms and costs ~$13/month
  • Optimizely adds 579ms and costs ~$11/month
  • webassets.mongodb.com adds 368ms and costs ~$7/month
  • Segment adds 328ms and costs ~$6/month
  • unpkg adds 302ms and costs ~$6/month
  • euob.michiganrobotflower.com adds 301ms and costs ~$6/month
  • pathway.mongodb.com adds 271ms and costs ~$5/month
  • Google Tag Manager adds 210ms and costs ~$4/month

74% 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 1423ms 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

js.intercomcdn.com takes 680ms 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

63% of js.intercomcdn.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

Optimizely takes 579ms 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 Optimizely'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

webassets.mongodb.com takes 368ms 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

58% of webassets.mongodb.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

Segment takes 328ms 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

unpkg takes 302ms 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

euob.michiganrobotflower.com takes 301ms 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

pathway.mongodb.com takes 271ms 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 210ms 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

51% of OneTrust'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 Hotjar'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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