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Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
77
GRADE
C
FIX
4
REVIEW
1
PASS
9
INFO
2

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

Mobile Desktop
46
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
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.

2.43 s

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

5.27 s

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

2.33 s

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.

4.68 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.

20.62 s

Page Load Progression

611 ms
1.2 s
1.8 s
2.4 s
3.1 s
3.7 s
4.3 s
4.9 s
Checks
16
9 PASS 1 REVIEW 4 FIX
F
Page Weight Budget
Action
3.7 MB transferred, 246 requests
FIX
3.7 MB transferred, 246 requests
Warning::
Page weighs 7.8 MB (3.7 MB transferred)
Warning::
JavaScript is 1.2 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.2 MB
Warning::
246 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.78 g CO2 per page load
3.7 MB / 2.4 MB budget
3.7 MB transferred
246 requests
0.78 g CO2 per page load
JavaScript 1.2 MiB 33%
Other 1.0 MiB 27%
Images 924.7 KiB 24%
Other 215.6 KiB 6%
Fonts 172.6 KiB 5%
HTML 114.6 KiB 3%
CSS 41.2 KiB 1%
Other 18.3 KiB 0%
Other 7.4 KiB 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

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
17077ms total JS execution
FIX
17077ms total JS execution
Warning::
https://flourist.com/: 8687ms CPU time
Warning::
https://flourist.com/cdn/shop/t/50/assets/theme.js...: 1888ms CPU time
Warning::
https://assets.gameball.co/widget/js/gameball.widg...: 1862ms CPU time
Warning::
Unattributable: 1647ms CPU time
Warning::
https://flourist.com/cdn/wpm/b0e8c7c7aw41bd75a1p83...: 542ms CPU time
Info::
Third-party scripts: 4955ms (29% of total)

Main Thread Breakdown

Other 37% Script Evaluation 26% Style & Layout 24% Rendering 8%
ScriptTotalScriptingParse/CompileParty
https://flourist.com/8687ms202ms32ms1st
https://flourist.com/cdn/shop/t/50/assets/theme.js?v=1772278756078328705017241151451888ms780ms54ms1st
https://assets.gameball.co/widget/js/gameball.widget.min.js?v=20260405.51862ms1211ms69ms3rd
Unattributable1647ms70ms0ms3rd
https://flourist.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js542ms268ms25ms1st
https://www.googletagmanager.com/gtag/js?id=GT-PLFFBWT273ms222ms49ms3rd
https://static.klaviyo.com/onsite/js/1011.fa12d00c7a08724d2839.js221ms74ms4ms3rd
https://static.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/sharedUtils.a9ddf879f3b12a71706e.js?cb=2195ms170ms10ms3rd
https://flourist.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.3.1.min.js192ms170ms8ms1st
https://flourist.com/cdn/s/trekkie.storefront.e683ac02f599017ff9915d0144977db42ea1653f.min.js190ms140ms25ms1st

Showing top 10 of 23 scripts

D
JS Bundles
Action
117 scripts, 368 KB unused
FIX
117 scripts, 368 KB unused
Warning::
https://assets.gameball.co/widget/js/gameball.widg...: 87 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://flourist.com/cdn/shop/t/50/assets/theme.js...: 62 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=GT-PLF...: 62 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://connect.facebook.net/en_US/fbevents.js: 33 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.shopify.com/extensions/019d681e-7fde-7...: 30 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 368 KB
368 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://assets.gameball.co/widget/js/gameball.widget.min.js?v=20260405.5143 KB87 KB (61%)✓3rd
https://flourist.com/cdn/shop/t/50/assets/theme.js?v=17722787560783287050172411514594 KB62 KB (67%)✓1st
https://www.googletagmanager.com/gtag/js?id=GT-PLFFBWT136 KB62 KB (46%)✓3rd
https://connect.facebook.net/en_US/fbevents.js95 KB33 KB (35%)✓3rd
https://cdn.shopify.com/extensions/019d681e-7fde-727c-a532-d2ab100b08d4/zapiet-pickup-delivery-1177/assets/storepickup.js45 KB30 KB (67%)✓3rd
https://cdn1.stamped.io/files/widget.min.js?shop=grain-inc.myshopify.com32 KB28 KB (88%)✓3rd
https://flourist.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js61 KB24 KB (39%)✓1st
https://flourist.com/cdn/shop/t/50/assets/vendor.js?v=6955539985098711580172411514634 KB22 KB (66%)✓1st
https://cdn.shopify.com/extensions/019d681e-7fde-727c-a532-d2ab100b08d4/zapiet-pickup-delivery-1177/assets/vendor.js24 KB21 KB (92%)✓3rd
https://static.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/event_adapter.4f7be3f375ef0d59c121.js?cb=21 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

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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
37 images, 0 KB saveable
REVIEW
37 images, 0 KB saveable
Info::
All images are well-optimized
37 images 919 KB
0 oversized -0 KB
5 legacy format
0 missing dimensions CLS risk
A
Third-Party Impact
38% third-party, 0 ms blocking
PASS
38% third-party, 0 ms blocking
Info::
Third-party code accounts for 38% of page weight (1.4 MiB of 3.7 MiB)
Info::
Third-party blocking time is low (0 ms)
62%
38%
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
14 fonts (293 KB)
PASS
14 fonts (293 KB)
Info::
14 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

14

293 KB total

Render-blocking

0

of 14

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 2.4 s LCP 5.3 shttps://flourist.com/cdn/fonts/poppins/poppins_n5.ad5b4b72b59a00358afc706450c864c3c8323842.woff2poppins_n5.ad5b4b72b59a... https://flourist.com/cdn/fonts/poppins/poppins_n5.ad5b4b72b59a00358afc706450c864c3c8323842.woff2 — 10.3 KiB — 0 ms — font-display: swaphttps://flourist.com/cdn/fonts/alegreya/alegreya_n4.9d59d35c9865f13cc7223c9847768350c0c7301a.woff2alegreya_n4.9d59d35c986... https://flourist.com/cdn/fonts/alegreya/alegreya_n4.9d59d35c9865f13cc7223c9847768350c0c7301a.woff2 — 23.4 KiB — 0 ms — font-display: swaphttps://flourist.com/cdn/fonts/karla/karla_n4.40497e07df527e6a50e58fb17ef1950c72f3e32c.woff2karla_n4.40497e07df527e... https://flourist.com/cdn/fonts/karla/karla_n4.40497e07df527e6a50e58fb17ef1950c72f3e32c.woff2 — 14.1 KiB — 0 ms — font-display: swaphttps://flourist.com/cdn/shop/t/50/assets/OrLemmen-Light.woff2?v=30361690391794632871724118167OrLemmen-Light.woff2 https://flourist.com/cdn/shop/t/50/assets/OrLemmen-Light.woff2?v=30361690391794632871724118167 — 41.2 KiB — 0 ms — font-display: swaphttps://flourist.com/cdn/shop/t/50/assets/StyreneA-Medium-Web.woff2?v=144021407856545681831724118168StyreneA-Medium-Web.woff2 https://flourist.com/cdn/shop/t/50/assets/StyreneA-Medium-Web.woff2?v=144021407856545681831724118168 — 33.1 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aXp-obK4.woff2JTUHjIg1_i6t8kCHKm4532V... https://fonts.gstatic.com/s/montserrat/v31/JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCu173w5aXp-obK4.woff2 — 15.9 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 34.7 KiB — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 0 B — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 0 B — 0 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 0 B — 0 ms — font-display: swaphttps://fonts.shopifycdn.com/open_sans/opensans_n4.c32e4d4eca5273f6d4ee95ddf54b5bbb75fc9b61.woff2?h1=ZmxvdXJpc3QuY29t&hmac=c852e413e200e6ba67b9952d1b2b3a6a95372cb6ddec1bc9782b7b5e4af8c4fcopensans_n4.c32e4d4eca5... https://fonts.shopifycdn.com/open_sans/opensans_n4.c32e4d4eca5273f6d4ee95ddf54b5bbb75fc9b61.woff2?h1=ZmxvdXJpc3QuY29t&hmac=c852e413e200e6ba67b9952d1b2b3a6a95372cb6ddec1bc9782b7b5e4af8c4fc — 21.0 KiB — 0 ms — font-display: swaphttps://fonts.shopifycdn.com/open_sans/opensans_n6.15aeff3c913c3fe570c19cdfeed14ce10d09fb08.woff2?h1=ZmxvdXJpc3QuY29t&hmac=1f8cff1bc301b5ee28f0c46a50ed0b07fea22c8192e9aa36ffc214ddfeaaf15aopensans_n6.15aeff3c913... https://fonts.shopifycdn.com/open_sans/opensans_n6.15aeff3c913c3fe570c19cdfeed14ce10d09fb08.woff2?h1=ZmxvdXJpc3QuY29t&hmac=1f8cff1bc301b5ee28f0c46a50ed0b07fea22c8192e9aa36ffc214ddfeaaf15a — 20.4 KiB — 0 ms — font-display: swaphttps://fonts.shopifycdn.com/pt_serif/ptserif_n4.5dc26655329dc6264a046fc444eea109ea514d3d.woff2?h1=ZmxvdXJpc3QuY29t&hmac=07ae255d8c1025d8f49b81a8f119d2895abae85cd4723c3f100f5ead5cb83e3fptserif_n4.5dc26655329d... https://fonts.shopifycdn.com/pt_serif/ptserif_n4.5dc26655329dc6264a046fc444eea109ea514d3d.woff2?h1=ZmxvdXJpc3QuY29t&hmac=07ae255d8c1025d8f49b81a8f119d2895abae85cd4723c3f100f5ead5cb83e3f — 41.9 KiB — 0 ms — font-display: swaphttps://fonts.shopifycdn.com/pt_serif/ptserif_n7.05b01f581be1e3c8aaf548f8c90656344869b497.woff2?h1=ZmxvdXJpc3QuY29t&hmac=ce97939d55005c1bc5ab29e573432335bfa938b5a42ae019f2040e40c47e0954ptserif_n7.05b01f581be1... https://fonts.shopifycdn.com/pt_serif/ptserif_n7.05b01f581be1e3c8aaf548f8c90656344869b497.woff2?h1=ZmxvdXJpc3QuY29t&hmac=ce97939d55005c1bc5ab29e573432335bfa938b5a42ae019f2040e40c47e0954 — 36.8 KiB — 0 ms — font-display: swap
poppins_n5.ad5b4b72b59a... woff2 swap
Size 10 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
alegreya_n4.9d59d35c986... woff2 swap
Size 23 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
karla_n4.40497e07df527e... woff2 swap
Size 14 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
OrLemmen-Light.woff2 woff2 swap
Size 41 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
StyreneA-Medium-Web.woff2 woff2 swap
Size 33 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUHjIg1_i6t8kCHKm4532V... woff2 swap
Size 16 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 0 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
opensans_n4.c32e4d4eca5... woff2 swap
Size 21 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
opensans_n6.15aeff3c913... woff2 swap
Size 20 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ptserif_n4.5dc26655329d... woff2 swap
Size 42 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
ptserif_n7.05b01f581be1... woff2 swap
Size 37 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)
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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
2
preload
3
dns-prefetch
1
prefetch
—

6 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
246 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
29% of JavaScript execution is third-party
First-party Third-party 4955ms · 592KB · €26/mo
assets.gameball.co
Other
Costly
Execution 1862ms
Transfer 143 KB
Unused 61%
Monthly Cost €10/mo
Unattributable
Other
Costly
Execution 1647ms
Transfer 0 KB
Monthly Cost €9/mo
Google Tag Manager
Tag Manager
Costly
Execution 273ms
Transfer 136 KB
Unused 46%
Monthly Cost €1/mo
static.klaviyo.com
Other
Costly
Execution 221ms
Transfer 8 KB
Monthly Cost €1/mo
static.klaviyo.com
Other
Optional
Execution 195ms
Transfer 23 KB
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 173ms
Transfer 95 KB
Unused 35%
Monthly Cost €1/mo
Facebook Pixel
Advertising
Optional
Execution 125ms
Transfer 37 KB
Monthly Cost €1/mo
cdn.shopify.com
Other
Optional
Execution 118ms
Transfer 45 KB
Unused 67%
Monthly Cost €1/mo
cdn.nfcube.com
Other
Optional
Execution 115ms
Transfer 21 KB
Monthly Cost €1/mo
ajax.googleapis.com
Other
Optional
Execution 114ms
Transfer 33 KB
Monthly Cost €1/mo
static-tracking.klaviyo.com
Other
Optional
Execution 60ms
Transfer 19 KB
Monthly Cost €0/mo
cdn1.stamped.io
Other
Optional
Execution 51ms
Transfer 32 KB
Unused 88%
Monthly Cost €0/mo

These scripts may cost more than they're worth

  • assets.gameball.co adds 1862ms and costs ~€10/month
  • Unattributable adds 1647ms and costs ~€9/month
  • Google Tag Manager adds 273ms and costs ~€1/month
  • static.klaviyo.com adds 221ms and costs ~€1/month

assets.gameball.co takes 1862ms 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

61% of assets.gameball.co'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

Unattributable takes 1647ms 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 273ms 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

static.klaviyo.com takes 221ms 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

67% of cdn.shopify.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

88% of cdn1.stamped.io'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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