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https://www.doordash.com

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
2
PASS
11
INFO
2

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

Mobile Desktop
81
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
40
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.

995 ms

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

1.81 s

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

795 ms

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

0.000

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

1.91 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.

3.68 s

Page Load Progression

455 ms
909 ms
1.4 s
1.8 s
2.3 s
2.7 s
3.2 s
3.6 s
Checks
16
11 PASS 2 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
max-age0Cache for 0 seconds
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
post-check0
pre-check0
B
Third-Party Impact
44% third-party, 0 ms blocking
REVIEW
44% third-party, 0 ms blocking
Info::
Third-party code accounts for 44% of page weight (419.4 KiB of 948.4 KiB)
Info::
Third-party blocking time is low (0 ms)
56%
44%
First-party Third-party
C
JS Execution Cost
Action
1711ms total JS execution
REVIEW
1711ms total JS execution
Warning::
https://www.doordash.com/cdn-cgi/challenge-platfor...: 1295ms CPU time
Warning::
Unattributable: 317ms CPU time
Info::
https://www.doordash.com/: 99ms CPU time
Info::
Third-party scripts: 317ms (19% of total)

Main Thread Breakdown

Script Evaluation 73% Other 20%
ScriptTotalScriptingParse/CompileParty
https://www.doordash.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9e8ba3a20ef075211295ms1228ms16ms1st
Unattributable317ms6ms0ms3rd
https://www.doordash.com/99ms18ms3ms1st
A
Page Weight Budget
948 KB transferred, 21 requests
PASS
948 KB transferred, 21 requests
Info::
Page weighs 2.5 MB (948 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
948 KB / 2.4 MB budget
948 KB transferred
21 requests
0.19 g CO2 per page load
Other 303.5 KiB 32%
Other 273.1 KiB 29%
Images 174.5 KiB 18%
HTML 101.0 KiB 11%
JavaScript 94.6 KiB 10%
Other 1.7 KiB 0%
0 2.4 MB 4.9 MB
Under budget
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
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 174 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
9 scripts, 0 KB unused
PASS
9 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c12417176891760157 KB—✓3rd
https://www.doordash.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9e8ba3a20ef0752170 KB—✓1st
blob:https://www.doordash.com/0800af73-d418-4949-8d67-f003eaf55eb00 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/b/625261456364/api.js?onload=OBvX9&render=explicit17 KB—✓3rd
blob:https://www.doordash.com/b02fc27f-73a5-48d6-8d57-ef3e704b3dd3-0 KB—✓3rd
blob:https://challenges.cloudflare.com/b6b5356a-a320-4bca-b7ed-74e9af9393670 KB—✓3rd
blob:https://challenges.cloudflare.com/4481a79f-0230-4c73-81eb-a9d6f3b061e4-0 KB—✓3rd
blob:https://challenges.cloudflare.com/4481a79f-0230-4c73-81eb-a9d6f3b061e4-0 KB—✓3rd
blob:https://challenges.cloudflare.com/dd0241d9-242c-45be-b32e-7a8a4b24dca3-0 KB—✓3rd
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
—
preload
2
dns-prefetch
—
prefetch
—

2 resource hints configured

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
21 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
19% of JavaScript execution is third-party
First-party Third-party 317ms · 0KB · $4/mo
Unattributable
Other
Costly
Execution 317ms
Transfer 0 KB
Monthly Cost $4/mo

These scripts may cost more than they're worth

  • Unattributable adds 317ms and costs ~$4/month

Unattributable takes 317ms 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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