Skip to content
https://stocktostove.com

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
95
GRADE
A
FIX
0
REVIEW
4
PASS
19
INFO
4

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.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

1.28 s

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

2.33 s

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

68 ms

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

0.005

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

2.35 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.

3.59 s

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
27
19 PASS 4 REVIEW
B
JS Execution Cost
906ms total JS execution
REVIEW
906ms total JS execution
Warning::
https://stocktostove.com/: 384ms CPU time
Warning::
Unattributable: 273ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-XE1F...: 249ms CPU time
Info::
Third-party scripts: 249ms (28% of total)

Main Thread Breakdown

Other 41% Script Evaluation 30% Style & Layout 15% Rendering 6% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://stocktostove.com/384ms47ms6ms1st
Unattributable273ms16ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-XE1FVB6MSP249ms202ms44ms3rd
B
JS Bundles
3 scripts, 74 KB unused
REVIEW
3 scripts, 74 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XE1F...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 74 KB
74 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-XE1FVB6MSP176 KB74 KB (42%)✓3rd
https://stocktostove.com/_astro/page.DDsIKVU2.js1 KB—✓1st
https://stocktostove.com/_astro/IngredientPicker.astro_astro_type_script_index_0_lang.CW-bq8Jk.js4 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

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
636 KB transferred, 23 requests
PASS
636 KB transferred, 23 requests
Info::
Page weighs 1.2 MB (636 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
636 KB / 2.4 MB budget
636 KB transferred
23 requests
0.13 g CO2 per page load
Images 294.4 KiB 46%
JavaScript 182.1 KiB 29%
Other 71.2 KiB 11%
Fonts 52.1 KiB 8%
HTML 16.3 KiB 3%
CSS 10.4 KiB 2%
Other 9.7 KiB 2%
0 2.4 MB 4.9 MB
Under budget
A
Third-Party Impact
28% third-party, 0 ms blocking
PASS
28% third-party, 0 ms blocking
Info::
Third-party code accounts for 28% of page weight (176.9 KiB of 636.2 KiB)
Info::
Third-party blocking time is low (0 ms)
72%
28%
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+
Image Optimization
11 images, 0 KB saveable
PASS
11 images, 0 KB saveable
Info::
All images are well-optimized
11 images 294 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
2 fonts (52 KB)
PASS
2 fonts (52 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

52 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 1.5 s 2.0 s FCP 1.3 s LCP 2.3 shttps://stocktostove.com/_astro/fonts/502b9851e13aed9b.woff2502b9851e13aed9b.woff2 https://stocktostove.com/_astro/fonts/502b9851e13aed9b.woff2 — 28.9 KiB — 85 ms — font-display: swaphttps://stocktostove.com/_astro/fonts/181a29443484632f.woff2181a29443484632f.woff2 https://stocktostove.com/_astro/fonts/181a29443484632f.woff2 — 23.2 KiB — 62 ms — font-display: swap
502b9851e13aed9b.woff2 woff2 swap
Size 29 KB
Load time 85 ms
Start 107 ms
Risk FOUT — text flashes from fallback to web font
181a29443484632f.woff2 woff2 swap
Size 23 KB
Load time 62 ms
Start 265 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+
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+
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+
Document Compression
Document response uses brotli
PASS
Document 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
23 resources · 636 KB · 74 KB savings available
PASS
23 resources · 636 KB · 74 KB savings available
Info::
Within 1MB page-weight target
Got: 636 KB
Info::
~74 KB of savings available
Info::
2 third-party resources (28% of weight)
23 resources · 636.2 KiB · 2 third-party Within 1MB page-weight target
Image 48% · 303.4 KiB
JavaScript 29% · 182.1 KiB
Other 11% · 71.2 KiB
Font 8% · 52.1 KiB
Document 3% · 17.0 KiB
CSS 2% · 10.4 KiB

~73.9 KiB of savings available

Remove unused JavaScript: 73.9 KiB
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+
JavaScript Blocking
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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

Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
23 requests over 1741ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.3 s LCP 2.3 shttps://stocktostove.com// https://stocktostove.com/ — 200 — 16.3 KiB — 94 ms — h2https://stocktostove.com/_astro/fonts/502b9851e13aed9b.woff2/_astro/fonts/502b9851e13aed9b.woff... https://stocktostove.com/_astro/fonts/502b9851e13aed9b.woff2 — 200 — 28.9 KiB — 85 ms — h2https://stocktostove.com/_astro/BaseLayout.Bvgm7Mju.css/_astro/BaseLayout.Bvgm7Mju.css https://stocktostove.com/_astro/BaseLayout.Bvgm7Mju.css — 200 — 6.9 KiB — 95 ms — h2https://stocktostove.com/_astro/index.B6e5Gjff.css/_astro/index.B6e5Gjff.css https://stocktostove.com/_astro/index.B6e5Gjff.css — 200 — 3.5 KiB — 114 ms — h2https://stocktostove.com/_astro/page.DDsIKVU2.js/_astro/page.DDsIKVU2.js https://stocktostove.com/_astro/page.DDsIKVU2.js — 200 — 1.5 KiB — 41 ms — h2https://stocktostove.com/_server-islands/RegionSuggestions?e=2A7BF3E0BFB1E411AA606CCC%2F6YiG19Zm3NRS6QGF7xepkwOAHndyaM%3D&p=27916C53801C39B0B7A048BCXcC%2Bq5qxARL6WNMNfR%2FL3QAj7orn0mwR7xZnpubx9zfUZ6RJ0%2FQ%2B7w6AspOwNbSP4XWhRNpo4vOYlJwq%2Bzw%3D&s=/_server-islands/RegionSuggestions?... https://stocktostove.com/_server-islands/RegionSuggestions?e=2A7BF3E0BFB1E411AA606CCC%2F6YiG19Zm3NRS6QGF7xepkwOAHndyaM%3D&p=27916C53801C39B0B7A048BCXcC%2Bq5qxARL6WNMNfR%2FL3QAj7orn0mwR7xZnpubx9zfUZ6RJ0%2FQ%2B7w6AspOwNbSP4XWhRNpo4vOYlJwq%2Bzw%3D&s= — 200 — 700 B — 280 ms — h2https://stocktostove.com/images/logo-wordmark.webp/images/logo-wordmark.webp https://stocktostove.com/images/logo-wordmark.webp — 200 — 16.4 KiB — 75 ms — h2https://stocktostove.com/images/recipes-d/mississippi-chicken-800-5e19c253.avif/images/recipes-d/mississippi-chick... https://stocktostove.com/images/recipes-d/mississippi-chicken-800-5e19c253.avif — 200 — 33.2 KiB — 93 ms — h2https://stocktostove.com/_astro/IngredientPicker.astro_astro_type_script_index_0_lang.CW-bq8Jk.js/_astro/IngredientPicker.astro_astr... https://stocktostove.com/_astro/IngredientPicker.astro_astro_type_script_index_0_lang.CW-bq8Jk.js — 200 — 4.2 KiB — 40 ms — h2https://stocktostove.com/images/recipes-d/kerala-parotta-800-e1a46506.avif/images/recipes-d/kerala-parotta-80... https://stocktostove.com/images/recipes-d/kerala-parotta-800-e1a46506.avif — 200 — 27.8 KiB — 122 ms — h2https://stocktostove.com/images/recipes-d/new-york-cheesecake-800-b6ca5704.avif/images/recipes-d/new-york-cheeseca... https://stocktostove.com/images/recipes-d/new-york-cheesecake-800-b6ca5704.avif — 200 — 18.8 KiB — 90 ms — h2https://stocktostove.com/images/recipes-d/key-lime-pie-800-34c85bc1.avif/images/recipes-d/key-lime-pie-800-... https://stocktostove.com/images/recipes-d/key-lime-pie-800-34c85bc1.avif — 200 — 27.2 KiB — 111 ms — h2https://stocktostove.com/images/recipes-d/vietnamese-banh-mi-800-9b960a94.avif/images/recipes-d/vietnamese-banh-m... https://stocktostove.com/images/recipes-d/vietnamese-banh-mi-800-9b960a94.avif — 200 — 29.4 KiB — 106 ms — h2https://stocktostove.com/_astro/fonts/181a29443484632f.woff2/_astro/fonts/181a29443484632f.woff... https://stocktostove.com/_astro/fonts/181a29443484632f.woff2 — 200 — 23.2 KiB — 62 ms — h3https://stocktostove.com/favicon.ico/favicon.ico https://stocktostove.com/favicon.ico — 200 — 9.0 KiB — 61 ms — h3https://stocktostove.com/images/recipes-d/maharashtrian-kolhapuri-misal-800-4ba364be.avif/images/recipes-d/maharashtrian-kol... https://stocktostove.com/images/recipes-d/maharashtrian-kolhapuri-misal-800-4ba364be.avif — 200 — 26.3 KiB — 111 ms — h3https://stocktostove.com/ingredient-index.json/ingredient-index.json https://stocktostove.com/ingredient-index.json — 200 — 70.7 KiB — 89 ms — h3https://www.googletagmanager.com/gtag/js?id=G-XE1FVB6MSPwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-XE1FVB6MSP — 200 — 176.4 KiB — 290 ms — h2https://stocktostove.com/images/recipes-d/texas-frito-pie-800-a6a53c25.avif/images/recipes-d/texas-frito-pie-8... https://stocktostove.com/images/recipes-d/texas-frito-pie-800-a6a53c25.avif — 200 — 28.6 KiB — 91 ms — h3https://stocktostove.com/images/recipes-d/banarasi-tamatar-chaat-800-ab613e1a.avif/images/recipes-d/banarasi-tamatar-... https://stocktostove.com/images/recipes-d/banarasi-tamatar-chaat-800-ab613e1a.avif — 200 — 31.4 KiB — 76 ms — h3https://stocktostove.com/images/recipes-d/palak-paneer-800-61360de6.avif/images/recipes-d/palak-paneer-800-... https://stocktostove.com/images/recipes-d/palak-paneer-800-61360de6.avif — 200 — 28.5 KiB — 117 ms — h3https://stocktostove.com/images/recipes-d/vietnamese-pho-ga-800-34b02ee7.avif/images/recipes-d/vietnamese-pho-ga... https://stocktostove.com/images/recipes-d/vietnamese-pho-ga-800-34b02ee7.avif — 200 — 26.8 KiB — 92 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-XE1FVB6MSP&gtm=45je6an1v9263011975za208zd9263011975xf1&_p=1793078764077&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1271185784.1793078766&frm=0&ngs=1&pscdl=noapi&rcb=4&sr=412x823&uaa=&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.47&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938465~115938468~118897920~118897930~120213116~120385423~120420414~120469145~120469153~121246026~121246034&sid=1793078765&sct=1&seg=0&dl=https%3A%2F%2Fstocktostove.com%2F&dt=What%20Should%20I%20Cook%3F%20Ideas%20From%20What%20You%20Have%20%7C%20StockToStove&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1653region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-XE1FVB6MSP&gtm=45je6an1v9263011975za208zd9263011975xf1&_p=1793078764077&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1271185784.1793078766&frm=0&ngs=1&pscdl=noapi&rcb=4&sr=412x823&uaa=&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.47&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938465~115938468~118897920~118897930~120213116~120385423~120420414~120469145~120469153~121246026~121246034&sid=1793078765&sct=1&seg=0&dl=https%3A%2F%2Fstocktostove.com%2F&dt=What%20Should%20I%20Cook%3F%20Ideas%20From%20What%20You%20Have%20%7C%20StockToStove&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1653 — 204 — 548 B — 87 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
28% of JavaScript execution is third-party
First-party Third-party 249ms · 176KB · €4/mo
Google Tag Manager
Tag Manager
Costly
Execution 249ms
Transfer 176 KB
Unused 42%
Monthly Cost €4/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 249ms and costs ~€4/month

Google Tag Manager takes 249ms 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

Image Optimization
12 images, 195 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

12

Total Size

195 KB

4 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback