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https://letseat.charlietheturtle.com

Performance

· 21 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
2

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

Mobile Desktop
98
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.
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.

934 ms

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

934 ms

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

0 ms

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

0.035

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

934 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

934 ms

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
21
15 PASS 3 REVIEW 1 FIX
D
Third-Party Impact
Action
66% third-party, 0 ms blocking
FIX
66% third-party, 0 ms blocking
Warning::
Third-party code accounts for 66% of page weight (88.8 KiB of 133.5 KiB)
Info::
Third-party blocking time is low (0 ms)
34%
66%
First-party Third-party
B
JS Execution Cost
660ms total JS execution
REVIEW
660ms total JS execution
Warning::
https://letseat.charlietheturtle.com/: 506ms CPU time
Info::
Unattributable: 78ms CPU time
Info::
https://letseat.charlietheturtle.com/cdn-cgi/chall...: 75ms CPU time

Main Thread Breakdown

Style & Layout 49% Other 24% Script Evaluation 15% Rendering 11%
ScriptTotalScriptingParse/CompileParty
https://letseat.charlietheturtle.com/506ms7ms0ms1st
Unattributable78ms21ms0ms1st
https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/scripts/jsd/main.js75ms72ms0ms1st
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
133 KB transferred, 12 requests
PASS
133 KB transferred, 12 requests
Info::
Page weighs 277 KB (133 KB transferred)
Info::
12 HTTP requests
Info::
Estimated 0.03 g CO2 per page load
133 KB / 2.4 MB budget
133 KB transferred
12 requests
0.03 g CO2 per page load
Fonts 87.7 KiB 66%
Other 19.9 KiB 15%
JavaScript 16.2 KiB 12%
CSS 4.5 KiB 3%
HTML 3.0 KiB 2%
Other 1.1 KiB 1%
Other 628 B 0%
Images 405 B 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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 0 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (88 KB)
PASS
2 fonts (88 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

88 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 934 ms LCP 934 mshttps://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2V8mDoQDjQSkFtoMM3T6r8E7... https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2 — 21.8 KiB — 50 ms — font-display: swaphttps://fonts.gstatic.com/s/fraunces/v38/6NU78FyLNQOQZAnv9bYEvDiIdE9Ea92uemAk_WBq8U_9v0c2Wa0KxC9TeP2Xz5c.woff26NU78FyLNQOQZAnv9bYEvDi... https://fonts.gstatic.com/s/fraunces/v38/6NU78FyLNQOQZAnv9bYEvDiIdE9Ea92uemAk_WBq8U_9v0c2Wa0KxC9TeP2Xz5c.woff2 — 65.8 KiB — 82 ms — font-display: swap
V8mDoQDjQSkFtoMM3T6r8E7... woff2 swap
Size 22 KB
Load time 50 ms
Start 228 ms
Risk FOUT — text flashes from fallback to web font
6NU78FyLNQOQZAnv9bYEvDi... woff2 swap
Size 66 KB
Load time 82 ms
Start 228 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)
A+
JS Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://letseat.charlietheturtle.com/app.js7 KB—✓1st
https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/330e41bb475c/main.js?10 KB—✓1st
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+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Compression Algorithm
Main response uses brotli
PASS
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
PASS
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, must-revalidate
A
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: br` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A
Page Weight Inventory
12 resources · 133 KB · 0 KB savings available
PASS
12 resources · 133 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 133 KB
Warning::
3 third-party resources (66% of weight)
12 resources · 133.5 KiB · 3 third-party Within 1MB page-weight target
Font 66% · 87.7 KiB
Other 16% · 21.7 KiB
JavaScript 12% · 16.2 KiB
CSS 3% · 4.5 KiB
Document 2% · 3.0 KiB
Image 0% · 405 B
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
12 requests over 788ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 934 ms LCP 934 mshttps://letseat.charlietheturtle.com// https://letseat.charlietheturtle.com/ — 200 — 3.0 KiB — 54 ms — h3https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Space+Grotesk:wght@400;500;700&display=swapfonts.googleapis.com/css2?family=Fr... https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600;9..144,700&family=Space+Grotesk:wght@400;500;700&display=swap — 200 — 1.1 KiB — 134 ms — h2https://letseat.charlietheturtle.com/styles.css/styles.css https://letseat.charlietheturtle.com/styles.css — 200 — 3.4 KiB — 32 ms — h3https://letseat.charlietheturtle.com/app.js/app.js https://letseat.charlietheturtle.com/app.js — 200 — 6.6 KiB — 40 ms — h3https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2fonts.gstatic.com/s/spacegrotesk/v2... https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2 — 200 — 21.8 KiB — 50 ms — h3https://fonts.gstatic.com/s/fraunces/v38/6NU78FyLNQOQZAnv9bYEvDiIdE9Ea92uemAk_WBq8U_9v0c2Wa0KxC9TeP2Xz5c.woff2fonts.gstatic.com/s/fraunces/v38/6N... https://fonts.gstatic.com/s/fraunces/v38/6NU78FyLNQOQZAnv9bYEvDiIdE9Ea92uemAk_WBq8U_9v0c2Wa0KxC9TeP2Xz5c.woff2 — 200 — 65.8 KiB — 82 ms — h3https://letseat.charlietheturtle.com/data/restaurants.json/data/restaurants.json https://letseat.charlietheturtle.com/data/restaurants.json — 200 — 19.9 KiB — 44 ms — h3https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 223 B — 25 ms — h3https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/330e41bb475c/main.js?/cdn-cgi/challenge-platform/h/g/scr... https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/330e41bb475c/main.js? — 200 — 9.7 KiB — 30 ms — h3https://letseat.charlietheturtle.com/+17162598205/+17162598205 https://letseat.charlietheturtle.com/+17162598205 — 404 — 405 B — 26 ms — h3https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/330e41bb475c/0.6206855284562349:1788404472:qjPftvmnc6jIYxNHcsSweQhh_i-zDQ3PBGD2if3tARI/a351a9fdada122a3/cdn-cgi/challenge-platform/h/g/jsd... https://letseat.charlietheturtle.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/330e41bb475c/0.6206855284562349:1788404472:qjPftvmnc6jIYxNHcsSweQhh_i-zDQ3PBGD2if3tARI/a351a9fdada122a3 — 200 — 1.1 KiB — 24 ms — h3https://letseat.charlietheturtle.com/favicon.ico/favicon.ico https://letseat.charlietheturtle.com/favicon.ico — 404 — 405 B — 27 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
1 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

0 KB

1 missing dimensions 1 missing lazy loading
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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