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https://snapchat.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
67
GRADE
D
FIX
4
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
44
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

926 ms

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

10.87 s

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

487 ms

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

0.011

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

3.68 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.

10.90 s

Page Load Progression

549 ms
1.1 s
1.6 s
2.2 s
2.7 s
3.3 s
3.8 s
4.4 s
Checks
15
6 PASS 3 REVIEW 4 FIX
F
Page Weight Budget
Action
13.1 MB transferred, 69 requests
FIX
13.1 MB transferred, 69 requests
Critical::
Page weighs 17.1 MB (13.1 MB transferred)
Warning::
JavaScript is 9.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 9.7 MB
Warning::
Images are 1.4 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.4 MB
Info::
Fonts are 217 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 217 KB
Info::
69 HTTP requests
Info::
Estimated 2.7 g CO2 per page load
13.1 MB / 2.4 MB budget
13.1 MB transferred
69 requests
2.7 g CO2 per page load
JavaScript 9.7 MiB 74%
Other 1.4 MiB 11%
Images 1.4 MiB 11%
Other 286.0 KiB 2%
Fonts 216.9 KiB 2%
HTML 29.6 KiB 0%
CSS 28.5 KiB 0%
Other 15.5 KiB 0%
Other 154 B 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

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 (13.1 MiB of 13.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
23 scripts, 6.8 MB unused
FIX
23 scripts, 6.8 MB unused
Warning::
https://static.snapchat.com/snapchat-dot-com/_next...: 6.8 MB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.snapchat.com/snapchat-dot-com/_next...: 26 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 6.8 MB
7009 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.js9795 KB6983 KB (73%)✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/main-93dbaebda72da021.js50 KB26 KB (53%)✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/4630.77cb43b65f5e1c81.js5 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1969.4a87dc3dd7ec2c56.js6 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/6018-cd60d20fa937936b.js4 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1540-d9fffe24ab4144e9.js4 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/index-724fcfb96e00e9ef.js6 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_buildManifest.js2 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_ssgManifest.js0 KB—✓3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9182.a26ffb47b5b0f155.js6 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

F
Page Weight Inventory
Action
69 resources · 13.1 MB · 6.8 MB savings available
FIX
69 resources · 13.1 MB · 6.8 MB savings available
Warning::
Page weight 12.1 MB over 1MB target
Got: 13.1 MB Expected: ≤ 1 MB
Info::
~6.8 MB of savings available
Warning::
68 third-party resources (100% of weight)
Info::
8 resources over 200KB
69 resources · 13.1 MiB · 68 third-party 12.1 MiB over 1MB target
JavaScript 74% · 9.7 MiB
Media 11% · 1.4 MiB
Image 11% · 1.4 MiB
Other 2% · 286.0 KiB
Font 2% · 216.9 KiB
Document 0% · 29.9 KiB
CSS 0% · 28.5 KiB

~6.8 MiB of savings available

Remove unused JavaScript: 6.8 MiB
B
Image Optimization
4 images, 0 KB saveable
REVIEW
4 images, 0 KB saveable
Info::
All images are well-optimized
4 images 1.4 MB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1143ms total JS execution
REVIEW
1143ms total JS execution
Warning::
https://static.snapchat.com/snapchat-dot-com/_next...: 553ms CPU time
Warning::
https://static.snapchat.com/snapchat-dot-com/_next...: 292ms CPU time
Info::
Unattributable: 187ms CPU time
Info::
https://www.snapchat.com/: 110ms CPU time
Warning::
Third-party scripts: 1143ms (100% of total)

Main Thread Breakdown

Script Evaluation 55% Script Parsing & Compilation 20% Other 16% Style & Layout 6%
ScriptTotalScriptingParse/CompileParty
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.js553ms309ms238ms3rd
https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/framework-41b02394b273386f.js292ms273ms3ms3rd
Unattributable187ms33ms0ms3rd
https://www.snapchat.com/110ms1ms0ms3rd
B
HTTP Caching
private
REVIEW
private
Info::
Cache-Control header is set
Got: private
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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 (217 KB)
PASS
4 fonts (217 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

217 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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 926 ms LCP 10.9 shttps://static.snapchat.com/fonts/AvenirNext-Medium.woff2AvenirNext-Medium.woff2 https://static.snapchat.com/fonts/AvenirNext-Medium.woff2 — 58.7 KiB — 21 ms — font-display: swaphttps://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2AvenirNext-DemiBold.woff2 https://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2 — 58.8 KiB — 22 ms — font-display: swaphttps://static.snapchat.com/fonts/AvenirNext-Bold.woff2AvenirNext-Bold.woff2 https://static.snapchat.com/fonts/AvenirNext-Bold.woff2 — 63.3 KiB — 10 ms — font-display: swaphttps://static.snapchat.com/fonts/Graphik-Regular.woff2Graphik-Regular.woff2 https://static.snapchat.com/fonts/Graphik-Regular.woff2 — 36.1 KiB — 7 ms — font-display: swap
AvenirNext-Medium.woff2 woff2 swap
Size 59 KB
Load time 21 ms
Start 200 ms
Risk FOUT — text flashes from fallback to web font
AvenirNext-DemiBold.woff2 woff2 swap
Size 59 KB
Load time 22 ms
Start 201 ms
Risk FOUT — text flashes from fallback to web font
AvenirNext-Bold.woff2 woff2 swap
Size 63 KB
Load time 10 ms
Start 1.3 s
Risk FOUT — text flashes from fallback to web font
Graphik-Regular.woff2 woff2 swap
Size 36 KB
Load time 7 ms
Start 1.3 s
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

Network Waterfall
69 requests over 3512ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 926 ms LCP 10.9 shttps://snapchat.com// https://snapchat.com/ — 301 — 139 B — 56 ms — h2https://www.snapchat.com/www.snapchat.com/ https://www.snapchat.com/ — 200 — 29.6 KiB — 58 ms — h2https://static.snapchat.com/videos/snapchat-dot-com/posters/find-your-friends.pngstatic.snapchat.com/videos/snapchat... https://static.snapchat.com/videos/snapchat-dot-com/posters/find-your-friends.png — 200 — 294.3 KiB — 54 ms — h3https://static.snapchat.com/videos/snapchat-dot-com/posters/lens.pngstatic.snapchat.com/videos/snapchat... https://static.snapchat.com/videos/snapchat-dot-com/posters/lens.png — 200 — 471.8 KiB — 64 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/css/d8c67cbd57df6f4b.cssstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/css/d8c67cbd57df6f4b.css — 200 — 26.5 KiB — 25 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/css/440db435a2548ca1.cssstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/css/440db435a2548ca1.css — 200 — 2.0 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/webpack-f93875dec9c013c9.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/webpack-f93875dec9c013c9.js — 200 — 5.9 KiB — 16 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/framework-41b02394b273386f.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/framework-41b02394b273386f.js — 200 — 44.3 KiB — 23 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/main-93dbaebda72da021.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/main-93dbaebda72da021.js — 200 — 50.4 KiB — 25 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.js — 200 — 9.6 MiB — 331 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/6018-cd60d20fa937936b.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/6018-cd60d20fa937936b.js — 200 — 4.1 KiB — 19 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1540-d9fffe24ab4144e9.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1540-d9fffe24ab4144e9.js — 200 — 3.7 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/index-724fcfb96e00e9ef.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/index-724fcfb96e00e9ef.js — 200 — 5.7 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_buildManifest.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_buildManifest.js — 200 — 1.9 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_ssgManifest.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_ssgManifest.js — 200 — 455 B — 22 ms — h3https://static.snapchat.com/fonts/AvenirNext-Medium.woff2static.snapchat.com/fonts/AvenirNex... https://static.snapchat.com/fonts/AvenirNext-Medium.woff2 — 200 — 58.7 KiB — 21 ms — h3https://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2static.snapchat.com/fonts/AvenirNex... https://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2 — 200 — 58.8 KiB — 22 ms — h3https://static.snapchat.com/favicon.icostatic.snapchat.com/favicon.ico https://static.snapchat.com/favicon.ico — 200 — 15.4 KiB — 6 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9182.a26ffb47b5b0f155.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9182.a26ffb47b5b0f155.js — 200 — 6.1 KiB — 4 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/4630.77cb43b65f5e1c81.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/4630.77cb43b65f5e1c81.js — 200 — 5.3 KiB — 6 ms — h3https://growth-web-dev-tool.mesh.sc-corp.net/api/open-sesamegrowth-web-dev-tool.mesh.sc-corp.ne... https://growth-web-dev-tool.mesh.sc-corp.net/api/open-sesame — 403 — 111 B — 303 ms — h2https://aws.api.snapchat.com/snapchat.cdp.cof.CircumstancesService/targetingQueryaws.api.snapchat.com/snapchat.cdp.c... https://aws.api.snapchat.com/snapchat.cdp.cof.CircumstancesService/targetingQuery — 200 — 0 B — 127 ms — h2https://us-central1-gcp.api.snapchat.com/web-analytics/web/init_clientus-central1-gcp.api.snapchat.com/we... https://us-central1-gcp.api.snapchat.com/web-analytics/web/init_client — 200 — 0 B — 190 ms — h2https://us-central1-gcp.api.snapchat.com/web-analytics/web/init_clientus-central1-gcp.api.snapchat.com/we... https://us-central1-gcp.api.snapchat.com/web-analytics/web/init_client — 200 — 0 B — 189 ms — h2https://gcp.api.snapchat.com/web/metricsgcp.api.snapchat.com/web/metrics https://gcp.api.snapchat.com/web/metrics — 200 — 0 B — 77 ms — h2https://gcp.api.snapchat.com/web/metricsgcp.api.snapchat.com/web/metrics https://gcp.api.snapchat.com/web/metrics — 200 — 0 B — 75 ms — h2https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9492.b2efa775b1c5b46f.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9492.b2efa775b1c5b46f.js — 200 — 1.8 KiB — 5 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/2298.de8f2e7513101035.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/2298.de8f2e7513101035.js — 200 — 1.5 KiB — 7 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/media/kameleon.077113e1.wasmstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/media/kameleon.077113e1.wasm — 200 — 277.4 KiB — 22 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1969.4a87dc3dd7ec2c56.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1969.4a87dc3dd7ec2c56.js — 200 — 5.9 KiB — 6 ms — h3
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 926 ms LCP 10.9 shttps://snapchat.com// https://snapchat.com/ — 301 — 139 B — 56 ms — h2https://www.snapchat.com/www.snapchat.com/ https://www.snapchat.com/ — 200 — 29.6 KiB — 58 ms — h2https://static.snapchat.com/videos/snapchat-dot-com/posters/find-your-friends.pngstatic.snapchat.com/videos/snapchat... https://static.snapchat.com/videos/snapchat-dot-com/posters/find-your-friends.png — 200 — 294.3 KiB — 54 ms — h3https://static.snapchat.com/videos/snapchat-dot-com/posters/lens.pngstatic.snapchat.com/videos/snapchat... https://static.snapchat.com/videos/snapchat-dot-com/posters/lens.png — 200 — 471.8 KiB — 64 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/css/d8c67cbd57df6f4b.cssstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/css/d8c67cbd57df6f4b.css — 200 — 26.5 KiB — 25 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/css/440db435a2548ca1.cssstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/css/440db435a2548ca1.css — 200 — 2.0 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/webpack-f93875dec9c013c9.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/webpack-f93875dec9c013c9.js — 200 — 5.9 KiB — 16 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/framework-41b02394b273386f.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/framework-41b02394b273386f.js — 200 — 44.3 KiB — 23 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/main-93dbaebda72da021.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/main-93dbaebda72da021.js — 200 — 50.4 KiB — 25 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/_app-5bf948405ea35454.js — 200 — 9.6 MiB — 331 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/6018-cd60d20fa937936b.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/6018-cd60d20fa937936b.js — 200 — 4.1 KiB — 19 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1540-d9fffe24ab4144e9.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/1540-d9fffe24ab4144e9.js — 200 — 3.7 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/index-724fcfb96e00e9ef.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/pages/index-724fcfb96e00e9ef.js — 200 — 5.7 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_buildManifest.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_buildManifest.js — 200 — 1.9 KiB — 18 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_ssgManifest.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/sgr3ioj4zRx2nHa2Grec4/_ssgManifest.js — 200 — 455 B — 22 ms — h3https://static.snapchat.com/fonts/AvenirNext-Medium.woff2static.snapchat.com/fonts/AvenirNex... https://static.snapchat.com/fonts/AvenirNext-Medium.woff2 — 200 — 58.7 KiB — 21 ms — h3https://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2static.snapchat.com/fonts/AvenirNex... https://static.snapchat.com/fonts/AvenirNext-DemiBold.woff2 — 200 — 58.8 KiB — 22 ms — h3https://static.snapchat.com/favicon.icostatic.snapchat.com/favicon.ico https://static.snapchat.com/favicon.ico — 200 — 15.4 KiB — 6 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9182.a26ffb47b5b0f155.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/9182.a26ffb47b5b0f155.js — 200 — 6.1 KiB — 4 ms — h3https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/4630.77cb43b65f5e1c81.jsstatic.snapchat.com/snapchat-dot-co... https://static.snapchat.com/snapchat-dot-com/_next/static/chunks/4630.77cb43b65f5e1c81.js — 200 — 5.3 KiB — 6 ms — h3https://growth-web-dev-tool.mesh.sc-corp.net/api/open-sesamegrowth-web-dev-tool.mesh.sc-corp.ne... https://growth-web-dev-tool.mesh.sc-corp.net/api/open-sesame — 403 — 111 B — 303 ms — h2https://aws.api.snapchat.com/snapchat.cdp.cof.CircumstancesService/targetingQueryaws.api.snapchat.com/snapchat.cdp.c... https://aws.api.snapchat.com/snapchat.cdp.cof.CircumstancesService/targetingQuery — 200 — 0 B — 127 ms — 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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 1143ms · 9869KB · €12/mo
static.snapchat.com
Other
Costly
Execution 553ms
Transfer 9795 KB
Unused 73%
Monthly Cost €6/mo
static.snapchat.com
Other
Costly
Execution 292ms
Transfer 44 KB
Monthly Cost €3/mo
Unattributable
Other
Optional
Execution 187ms
Transfer 0 KB
Monthly Cost €2/mo
www.snapchat.com
Other
Optional
Execution 110ms
Transfer 30 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • static.snapchat.com adds 553ms and costs ~€6/month
  • static.snapchat.com adds 292ms and costs ~€3/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

static.snapchat.com takes 553ms 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 static.snapchat.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

static.snapchat.com takes 292ms 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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