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https://www.snowflake.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
4
REVIEW
1
PASS
7
INFO
2

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

Mobile Desktop
43
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
81
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

616 ms

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

2.41 s

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

325 ms

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

0.930

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

2.61 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.

4.63 s

Page Load Progression

638 ms
1.3 s
1.9 s
2.6 s
3.2 s
3.8 s
4.5 s
5.1 s
Checks
14
7 PASS 1 REVIEW 4 FIX
F
Page Weight Budget
Action
12.7 MB transferred, 172 requests
FIX
12.7 MB transferred, 172 requests
Critical::
Page weighs 19.8 MB (12.7 MB transferred)
Warning::
Images are 3.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.9 MB
Warning::
JavaScript is 1.3 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.3 MB
Info::
Fonts are 476 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 476 KB
Warning::
172 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 2.7 g CO2 per page load
12.7 MB / 2.4 MB budget
12.7 MB transferred
172 requests
2.7 g CO2 per page load
Other 6.6 MiB 52%
Images 3.9 MiB 30%
JavaScript 1.3 MiB 10%
Fonts 475.9 KiB 4%
Other 193.1 KiB 1%
HTML 169.6 KiB 1%
CSS 117.8 KiB 1%
Other 16.9 KiB 0%
Other 7.8 KiB 0%
Other 1.0 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

F
JS Execution Cost
Action
3623ms total JS execution
FIX
3623ms total JS execution
Warning::
https://www.snowflake.com/etc.clientlibs/snowflake...: 1558ms CPU time
Warning::
Unattributable: 628ms CPU time
Warning::
https://www.snowflake.com/en/: 445ms CPU time
Warning::
https://www.snowflake.com/etc/cloudsettings.kernel...: 411ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-5Q8...: 204ms CPU time
Info::
Third-party scripts: 1153ms (32% of total)

Main Thread Breakdown

Script Evaluation 38% Style & Layout 27% Other 22% Parse HTML & CSS 5% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react.lc-926c1d55e3692cbbecf41ba4c2184fee-lc.min.js1558ms721ms79ms1st
Unattributable628ms17ms0ms3rd
https://www.snowflake.com/en/445ms7ms1ms1st
https://www.snowflake.com/etc/cloudsettings.kernel.js/conf/snowflake-site/settings/cloudsettings/legacy/contexthub411ms188ms7ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-5Q8R2G204ms153ms24ms3rd
https://252-rfo-227.mktoweb.com/js/forms2/js/forms2.min.js145ms91ms6ms3rd
https://cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js105ms62ms16ms3rd
https://assets.adobedtm.com/0a17b55ca7cd/44cd06dd2ecb/launch-643b1321858d.min.js72ms59ms11ms3rd
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react/resources/static/js/8062.7963b214.chunk.js56ms47ms9ms1st
F
JS Bundles
Action
40 scripts, 665 KB unused
FIX
40 scripts, 665 KB unused
Warning::
https://www.snowflake.com/etc.clientlibs/snowflake...: 360 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5Q8...: 75 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202602.1...: 68 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.snowflake.com/etc.clientlibs/snowflake...: 50 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://252-rfo-227.mktoweb.com/js/forms2/js/forms...: 33 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 665 KB
665 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react.lc-926c1d55e3692cbbecf41ba4c2184fee-lc.min.js571 KB360 KB (63%)✓1st
https://www.googletagmanager.com/gtm.js?id=GTM-5Q8R2G190 KB75 KB (40%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js129 KB68 KB (53%)✓3rd
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react/resources/static/js/8062.7963b214.chunk.js83 KB50 KB (61%)✓1st
https://252-rfo-227.mktoweb.com/js/forms2/js/forms2.min.js67 KB33 KB (49%)✓3rd
https://252-rfo-227.mktoweb.com/js/forms2/js/forms2.min.js68 KB33 KB (49%)✓3rd
https://assets.adobedtm.com/0a17b55ca7cd/44cd06dd2ecb/launch-643b1321858d.min.js68 KB25 KB (37%)✓3rd
https://www.snowflake.com/etc/cloudsettings.kernel.js/conf/snowflake-site/settings/cloudsettings/legacy/contexthub58 KB20 KB (36%)✓1st
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react/resources/static/js/svgs282.9d4eb048.chunk.js2 KB—✓1st
https://www.snowflake.com/etc.clientlibs/snowflake-site/clientlibs/clientlib-react/resources/static/js/svgs406.b8526066.chunk.js1 KB—✓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

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
88 images, 0 KB saveable
REVIEW
88 images, 0 KB saveable
Warning::
https://www.snowflake.com/adobe/dynamicmedia/deliv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.snowflake.com/adobe/dynamicmedia/deliv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.snowflake.com/adobe/dynamicmedia/deliv... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
88 images 3.9 MB
0 oversized -0 KB
51 legacy format
3 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

A+
Third-Party Impact
5% third-party, 0 ms blocking
PASS
5% third-party, 0 ms blocking
Info::
Third-party code accounts for 5% of page weight (704.2 KiB of 12.7 MiB)
Info::
Third-party blocking time is low (0 ms)
95%
First-party Third-party
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
5 fonts (476 KB)
PASS
5 fonts (476 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

476 KB total

Render-blocking

0

of 5

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 616 ms LCP 2.4 shttps://www.snowflake.com/fonts/Lato-Regular.woff2Lato-Regular.woff2 https://www.snowflake.com/fonts/Lato-Regular.woff2 — 207.4 KiB — 0 ms — font-display: swaphttps://www.snowflake.com/fonts/Lato-Bold.woff2Lato-Bold.woff2 https://www.snowflake.com/fonts/Lato-Bold.woff2 — 207.9 KiB — 0 ms — font-display: swaphttps://www.snowflake.com/fonts/Texta-Bold.woff2Texta-Bold.woff2 https://www.snowflake.com/fonts/Texta-Bold.woff2 — 16.5 KiB — 0 ms — font-display: swaphttps://www.snowflake.com/fonts/Texta-Black.woff2Texta-Black.woff2 https://www.snowflake.com/fonts/Texta-Black.woff2 — 28.1 KiB — 0 ms — font-display: swaphttps://www.snowflake.com/fonts/Texta.woff2Texta.woff2 https://www.snowflake.com/fonts/Texta.woff2 — 16.1 KiB — 0 ms — font-display: swap
Lato-Regular.woff2 woff2 swap
Size 207 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
Lato-Bold.woff2 woff2 swap
Size 208 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
Texta-Bold.woff2 woff2 swap
Size 16 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Texta-Black.woff2 woff2 swap
Size 28 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Texta.woff2 woff2 swap
Size 16 KB
Load time 0 ms
Start 0 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)

Fixing the unchecked items could save ~208 KB and ~416 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

Network Waterfall
172 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
32% of JavaScript execution is third-party
First-party Third-party 1153ms · 454KB · $20/mo
Unattributable
Other
Costly
Execution 628ms
Transfer 0 KB
Monthly Cost $11/mo
Google Tag Manager
Tag Manager
Costly
Execution 204ms
Transfer 190 KB
Unused 40%
Monthly Cost $4/mo
252-rfo-227.mktoweb.com
Other
Optional
Execution 145ms
Transfer 67 KB
Unused 49%
Monthly Cost $2/mo
OneTrust
Consent
Essential
Execution 105ms
Transfer 129 KB
Unused 53%
Monthly Cost $2/mo
assets.adobedtm.com
Other
Optional
Execution 72ms
Transfer 68 KB
Unused 37%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 628ms and costs ~$11/month
  • Google Tag Manager adds 204ms and costs ~$4/month

Unattributable takes 628ms 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 204ms 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

53% 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

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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