Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

Accessibility

Best Practices

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.27 s

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

7.90 s

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

5.69 s

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

0.020

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

9.14 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.

41.27 s

Page Load Progression

891 ms

1.8 s

2.7 s

3.6 s

4.5 s

5.3 s

6.2 s

7.1 s

Checks

9 PASS 1 REVIEW 5 FIX

Page Weight Budget

Action

5.3 MB transferred, 314 requests

FIX

5.3 MB transferred, 314 requests

Page weighs 15.6 MB (5.3 MB transferred)

JavaScript is 3.6 MB — consider code splitting or lazy loading

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Got: 3.6 MB

Fonts are 593 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 593 KB

314 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 1.1 g CO2 per page load

5.3 MB transferred

314 requests

1.1 g CO2 per page load

JavaScript 3.6 MiB 67%

Images 801.3 KiB 15%

Fonts 593.0 KiB 11%

Other 139.7 KiB 3%

Other 110.4 KiB 2%

HTML 70.0 KiB 1%

CSS 55.2 KiB 1%

Other 9.9 KiB 0%

Other 3.8 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

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

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

Third-Party Impact

Action

74% third-party, 0 ms blocking

FIX

74% third-party, 0 ms blocking

Third-party code accounts for 74% of page weight (4.0 MiB of 5.3 MiB)

Third-party blocking time is low (0 ms)

26%

74%

First-party Third-party

JS Execution Cost

Action

13099ms total JS execution

FIX

13099ms total JS execution

Unattributable: 2016ms CPU time

https://www.googletagmanager.com/gtm.js?id=GTM-PT2...: 1786ms CPU time

https://diabetes.org/: 1260ms CPU time

https://diabetes.org/sites/default/files/js/js_Olj...: 960ms CPU time

https://www.googletagmanager.com/gtag/js?id=G-JQDP...: 608ms CPU time

Third-party scripts: 10697ms (82% of total)

Main Thread Breakdown

Script Evaluation 59% Other 16% Script Parsing & Compilation 12% Style & Layout 8%

Script	Total	Scripting	Parse/Compile	Party
Unattributable	2016ms	218ms	0ms	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-PT2TCFXN	1786ms	1571ms	112ms	3rd
https://diabetes.org/	1260ms	21ms	2ms	1st
https://diabetes.org/sites/default/files/js/js_Oljhyr60UmGdyJlX1mV7ztKQAtq6sLgqT1j9GdoVEwA.js?scope=footer&delta=0&language=en&theme=diabetespro&include=eJx1UtGSgyAM_CEon8REiIgicRLo1b-_tE5vzk59yWR3kV0SIYIfe40MWbBvDs7YQIyNoO7u3dxGptoMiGDzuc4YGrGb5YaTeGk5LLsfoFZkP4sZsDXt8LGRYPRjLgrFQW_kpQ9rbldHEuoVUK7kkusivgt6mOFhAhXigR5OGoVlorLKro-gFf8kDasfofvAJkKDAjuyG3CCeyYWEzOoL8rG5AJwtFpIzcoXRacBeg-fJWI8EXjH2i4OT8hkj5l9NypQU4eEVgWd90kTBA6TvWf8OfNFV2G1xg-3vgVac032FUlMIkoFfYPkkpZPfHvN90SuZkURzaOLZvevN1SxcZfmA9GSlSu6DfVyB7ZvbI7UHrbsn_-CJtqKBnQXvHk-T3RjY665oZfAVIp7sfbN2oP9BTjeHWU	960ms	578ms	28ms	1st
https://www.googletagmanager.com/gtag/js?id=G-JQDP2V81FZ&cx=c&gtm=4e64h1	608ms	433ms	82ms	3rd
https://www.googletagmanager.com/gtag/js?id=AW-1069977158&cx=c&gtm=4e64h1	483ms	427ms	52ms	3rd
https://connect.facebook.net/signals/config/1079868055521730?v=2.9.303&r=stable&domain=diabetes.org&hme=97937018cefade17726f0472876fc101316b2ce9008a35a6a5a7977d7436151a&ex_m=104%2C205%2C154%2C22%2C72%2C73%2C145%2C68%2C67%2C11%2C162%2C90%2C16%2C138%2C127%2C39%2C75%2C78%2C134%2C159%2C164%2C8%2C4%2C5%2C7%2C6%2C3%2C91%2C101%2C165%2C170%2C219%2C62%2C186%2C187%2C55%2C276%2C30%2C74%2C231%2C230%2C229%2C23%2C33%2C103%2C61%2C10%2C63%2C97%2C98%2C99%2C105%2C130%2C31%2C29%2C132%2C133%2C129%2C128%2C155%2C76%2C158%2C156%2C157%2C50%2C60%2C123%2C15%2C161%2C45%2C263%2C264%2C262%2C26%2C27%2C28%2C48%2C146%2C77%2C112%2C18%2C20%2C44%2C40%2C42%2C41%2C83%2C92%2C96%2C110%2C144%2C147%2C46%2C111%2C24%2C21%2C119%2C69%2C36%2C149%2C148%2C150%2C141%2C139%2C25%2C35%2C59%2C109%2C160%2C70%2C17%2C152%2C114%2C81%2C66%2C19%2C85%2C86%2C116%2C84%2C136%2C135%2C34%2C278%2C293%2C212%2C201%2C202%2C200%2C296%2C288%2C52%2C213%2C107%2C131%2C80%2C121%2C54%2C47%2C49%2C113%2C120%2C126%2C58%2C64%2C151%2C115%2C37%2C32%2C53%2C56%2C100%2C163%2C1%2C124%2C14%2C122%2C12%2C2%2C57%2C93%2C65%2C118%2C89%2C88%2C166%2C167%2C94%2C95%2C9%2C125%2C102%2C51%2C142%2C87%2C79%2C71%2C117%2C106%2C43%2C143%2C0%2C82%2C137%2C140%2C153%2C38%2C108%2C13%2C168	426ms	337ms	86ms	3rd
https://static.fundraiseup.com/9483.5049a274cd651063.js	369ms	310ms	2ms	3rd
https://static.fundraiseup.com/checkout-vendors.78ab7844d94042df.js	357ms	313ms	43ms	3rd
https://www.googletagmanager.com/gtag/js?id=AW-10994078208&cx=c&gtm=4e64h1	324ms	268ms	53ms	3rd

Showing top 10 of 37 scripts

JS Bundles

Action

87 scripts, 1.6 MB unused

FIX

87 scripts, 1.6 MB unused

https://static.fundraiseup.com/checkout.9e2624d0be...: 366 KB unused (89%)

Consider code splitting or tree shaking to reduce unused code.

https://static.fundraiseup.com/checkout-sentry-ven...: 112 KB unused (100%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=DC-128...: 107 KB unused (71%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=AW-107...: 107 KB unused (71%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=AW-106...: 105 KB unused (72%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 1.6 MB

1650 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://static.fundraiseup.com/checkout.9e2624d0be733d7f.js	410 KB	366 KB (89%)	✓	3rd
https://static.fundraiseup.com/checkout-sentry-vendor.dda4c7629502a974.js	112 KB	112 KB (100%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=DC-12833848	150 KB	107 KB (71%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-1070296966	150 KB	107 KB (71%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=AW-1069977158	147 KB	105 KB (72%)	✓	3rd
https://static.fundraiseup.com/checkout-vendors.78ab7844d94042df.js	105 KB	87 KB (83%)	✓	3rd
https://diabetes.org/sites/default/files/js/js_eqmCcXdl8sRCo6NdUo8-L5LPHXDtCUo1hk5eaVvggqY.js?scope=footer&delta=3&language=en&theme=diabetespro&include=eJx1UtGSgyAM_CEon8REiIgicRLo1b-_tE5vzk59yWR3kV0SIYIfe40MWbBvDs7YQIyNoO7u3dxGptoMiGDzuc4YGrGb5YaTeGk5LLsfoFZkP4sZsDXt8LGRYPRjLgrFQW_kpQ9rbldHEuoVUK7kkusivgt6mOFhAhXigR5OGoVlorLKro-gFf8kDasfofvAJkKDAjuyG3CCeyYWEzOoL8rG5AJwtFpIzcoXRacBeg-fJWI8EXjH2i4OT8hkj5l9NypQU4eEVgWd90kTBA6TvWf8OfNFV2G1xg-3vgVac032FUlMIkoFfYPkkpZPfHvN90SuZkURzaOLZvevN1SxcZfmA9GSlSu6DfVyB7ZvbI7UHrbsn_-CJtqKBnQXvHk-T3RjY665oZfAVIp7sfbN2oP9BTjeHWU	124 KB	79 KB (64%)	✓	1st
https://www.googletagmanager.com/gtag/js?id=G-JQDP2V81FZ&cx=c&gtm=4e64h1	178 KB	67 KB (37%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=DC-12516592&cx=c&gtm=4e64h1	129 KB	61 KB (47%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=DC-10227227&cx=c&gtm=4e64h1	129 KB	57 KB (44%)	✓	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

Page Weight Inventory

Action

314 resources · 5.3 MB · 1.6 MB savings available

FIX

314 resources · 5.3 MB · 1.6 MB savings available

Page weight 4.3 MB over 1MB target

Got: 5.3 MB Expected: ≤ 1 MB

~1.6 MB of savings available

267 third-party resources (74% of weight)

3 resources over 200KB

314 resources · 5.3 MiB · 267 third-party 4.3 MiB over 1MB target

JavaScript 67% · 3.6 MiB

Image 16% · 900.6 KiB

Font 11% · 593.0 KiB

Other 3% · 154.7 KiB

Document 1% · 78.0 KiB

CSS 1% · 55.2 KiB

~1.6 MiB of savings available

Remove unused JavaScript: 1.6 MiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

314 resources			5.3 MiB

Image Optimization

Action

83 images, 0 KB saveable

REVIEW

83 images, 0 KB saveable

https://diabetes.org/sites/default/files/ADA85_log... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://braze-images.com/appboy/communication/mark... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

83 images 801 KB

0 oversized -0 KB

71 legacy format

2 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

7 fonts (593 KB)

PASS

7 fonts (593 KB)

7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

593 KB total

Render-blocking

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

Inter-Regular.woff2 woff2 swap

Size 98 KB

Load time 18 ms

Start 708 ms

Risk FOUT — text flashes from fallback to web font

Inter-Medium.woff2 woff2 swap

Size 106 KB

Load time 26 ms

Start 708 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

Inter-Bold.woff2 woff2 swap

Size 107 KB

Load time 24 ms

Start 709 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

Inter-SemiBold.woff2 woff2 swap

Size 107 KB

Load time 30 ms

Start 709 ms

Risk FOUT — text flashes from fallback to web font

Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need

ibmplexsans-v19-600.4b4... woff2 swap

Size 60 KB

Load time 41 ms

Start 2.0 s

Risk FOUT — text flashes from fallback to web font

ibmplexsans-v19-400.dc8... woff2 swap

Size 56 KB

Load time 52 ms

Start 2.0 s

Risk FOUT — text flashes from fallback to web font

ibmplexsans-v19-500.109... woff2 swap

Size 59 KB

Load time 47 ms

Start 2.0 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)

Fixing the unchecked items could save ~160 KB and ~320 ms

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

5 hints, 0 missing preconnects

PASS

5 hints, 0 missing preconnects

Page uses 5 resource hint(s)

Current Resource Hints

preconnect

preload

—

dns-prefetch

prefetch

—

5 resource hints configured

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

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

A+

HTTP Caching

max-age=604800 (1 week)

PASS

max-age=604800 (1 week)

Cache-Control header is set

Got: max-age=604800, public

Effective TTL: 1 week (max-age=604800)

Last-Modified header present

Cache-Control

max-age=604800, public

Directive	Value	Meaning
max-age	604800	Cache for 1 week
public	—	Any cache may store this response

Effective TTL: 604800 seconds

Network Waterfall

314 requests over 7306ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

82% of JavaScript execution is third-party

First-party Third-party 10697ms · 2929KB · €70/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Unattributable Unattributable	Other	2016ms	0 KB	—	€13/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	1786ms	202 KB	26%	€12/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	608ms	178 KB	37%	€4/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	483ms	147 KB	36%	€3/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	426ms	122 KB	22%	€3/mo	Costly
static.fundraiseup.com static.fundraiseup.com	Other	369ms	4 KB	—	€2/mo	Costly
static.fundraiseup.com static.fundraiseup.com	Other	357ms	105 KB	83%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	324ms	138 KB	40%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	317ms	129 KB	47%	€2/mo	Costly
analytics.tiktok.com analytics.tiktok.com	Other	312ms	110 KB	50%	€2/mo	Costly
Microsoft Clarity scripts.clarity.ms	Session Replay	311ms	26 KB	—	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	305ms	129 KB	44%	€2/mo	Costly
siteintercept.qualtrics.com siteintercept.qualtrics.com	Other	303ms	36 KB	59%	€2/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	280ms	151 KB	35%	€2/mo	Costly
cdn.fundraiseup.com cdn.fundraiseup.com	Other	273ms	66 KB	32%	€2/mo	Costly
static.fundraiseup.com static.fundraiseup.com	Other	249ms	410 KB	89%	€2/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	224ms	97 KB	36%	€1/mo	Costly
static.fundraiseup.com static.fundraiseup.com	Other	211ms	10 KB	—	€1/mo	Costly
static.addtoany.com static.addtoany.com	Other	179ms	2 KB	—	€1/mo	Optional
static.fundraiseup.com static.fundraiseup.com	Other	123ms	11 KB	—	€1/mo	Optional
s.pinimg.com s.pinimg.com	Other	118ms	27 KB	—	€1/mo	Optional
static.fundraiseup.com static.fundraiseup.com	Other	116ms	37 KB	—	€1/mo	Optional
static.fundraiseup.com static.fundraiseup.com	Other	115ms	139 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	108ms	150 KB	71%	€1/mo	Optional
js.appboycdn.com js.appboycdn.com	Other	101ms	63 KB	43%	€1/mo	Optional
ads.nextdoor.com ads.nextdoor.com	Other	99ms	19 KB	—	€1/mo	Optional
Facebook Pixel connect.facebook.net	Advertising	98ms	16 KB	—	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	93ms	147 KB	72%	€1/mo	Optional
Google Tag Manager www.googletagmanager.com	Tag Manager	91ms	150 KB	71%	€1/mo	Optional
aim-tag.hcn.health aim-tag.hcn.health	Other	68ms	29 KB	—	€0/mo	Optional
Facebook Pixel connect.facebook.net	Advertising	63ms	16 KB	—	€0/mo	Optional
analytics.tiktok.com analytics.tiktok.com	Other	62ms	40 KB	—	€0/mo	Optional
Facebook Pixel connect.facebook.net	Advertising	54ms	16 KB	—	€0/mo	Optional
js.zi-scripts.com js.zi-scripts.com	Other	54ms	6 KB	—	€0/mo	Optional

Unattributable

Other

Costly

Execution 2016ms

Transfer 0 KB

Monthly Cost €13/mo

Google Tag Manager

Tag Manager

Costly

Execution 1786ms

Transfer 202 KB

Unused 26%

Monthly Cost €12/mo

Google Tag Manager

Tag Manager

Costly

Execution 608ms

Transfer 178 KB

Unused 37%

Monthly Cost €4/mo

Google Tag Manager

Tag Manager

Costly

Execution 483ms

Transfer 147 KB

Unused 36%

Monthly Cost €3/mo

Facebook Pixel

Advertising

Costly

Execution 426ms

Transfer 122 KB

Unused 22%

Monthly Cost €3/mo

static.fundraiseup.com

Other

Costly

Execution 369ms

Transfer 4 KB

Monthly Cost €2/mo

static.fundraiseup.com

Other

Costly

Execution 357ms

Transfer 105 KB

Unused 83%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 324ms

Transfer 138 KB

Unused 40%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 317ms

Transfer 129 KB

Unused 47%

Monthly Cost €2/mo

analytics.tiktok.com

Other

Costly

Execution 312ms

Transfer 110 KB

Unused 50%

Monthly Cost €2/mo

Microsoft Clarity

Session Replay

Costly

Execution 311ms

Transfer 26 KB

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 305ms

Transfer 129 KB

Unused 44%

Monthly Cost €2/mo

siteintercept.qualtrics.com

Other

Costly

Execution 303ms

Transfer 36 KB

Unused 59%

Monthly Cost €2/mo

Google Tag Manager

Tag Manager

Costly

Execution 280ms

Transfer 151 KB

Unused 35%

Monthly Cost €2/mo

cdn.fundraiseup.com

Other

Costly

Execution 273ms

Transfer 66 KB

Unused 32%

Monthly Cost €2/mo

static.fundraiseup.com

Other

Costly

Execution 249ms

Transfer 410 KB

Unused 89%

Monthly Cost €2/mo

Facebook Pixel

Advertising

Costly

Execution 224ms

Transfer 97 KB

Unused 36%

Monthly Cost €1/mo

static.fundraiseup.com

Other

Costly

Execution 211ms

Transfer 10 KB

Monthly Cost €1/mo

static.addtoany.com

Other

Optional

Execution 179ms

Transfer 2 KB

Monthly Cost €1/mo

static.fundraiseup.com

Other

Optional

Execution 123ms

Transfer 11 KB

Monthly Cost €1/mo

s.pinimg.com

Other

Optional

Execution 118ms

Transfer 27 KB

Monthly Cost €1/mo

static.fundraiseup.com

Other

Optional

Execution 116ms

Transfer 37 KB

Monthly Cost €1/mo

static.fundraiseup.com

Other

Optional

Execution 115ms

Transfer 139 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 108ms

Transfer 150 KB

Unused 71%

Monthly Cost €1/mo

js.appboycdn.com

Other

Optional

Execution 101ms

Transfer 63 KB

Unused 43%

Monthly Cost €1/mo

ads.nextdoor.com

Other

Optional

Execution 99ms

Transfer 19 KB

Monthly Cost €1/mo

Facebook Pixel

Advertising

Optional

Execution 98ms

Transfer 16 KB

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 93ms

Transfer 147 KB

Unused 72%

Monthly Cost €1/mo

Google Tag Manager

Tag Manager

Optional

Execution 91ms

Transfer 150 KB

Unused 71%

Monthly Cost €1/mo

aim-tag.hcn.health

Other

Optional

Execution 68ms

Transfer 29 KB

Monthly Cost €0/mo

Facebook Pixel

Advertising

Optional

Execution 63ms

Transfer 16 KB

Monthly Cost €0/mo

analytics.tiktok.com

Other

Optional

Execution 62ms

Transfer 40 KB

Monthly Cost €0/mo

Facebook Pixel

Advertising

Optional

Execution 54ms

Transfer 16 KB

Monthly Cost €0/mo

js.zi-scripts.com

Other

Optional

Execution 54ms

Transfer 6 KB

Monthly Cost €0/mo

These scripts may cost more than they're worth

Unattributable adds 2016ms and costs ~€13/month
Google Tag Manager adds 1786ms and costs ~€12/month
Google Tag Manager adds 608ms and costs ~€4/month
Google Tag Manager adds 483ms and costs ~€3/month
Facebook Pixel adds 426ms and costs ~€3/month
static.fundraiseup.com adds 369ms and costs ~€2/month
static.fundraiseup.com adds 357ms and costs ~€2/month
Google Tag Manager adds 324ms and costs ~€2/month
Google Tag Manager adds 317ms and costs ~€2/month
analytics.tiktok.com adds 312ms and costs ~€2/month
Microsoft Clarity adds 311ms and costs ~€2/month
Google Tag Manager adds 305ms and costs ~€2/month
siteintercept.qualtrics.com adds 303ms and costs ~€2/month
Google Tag Manager adds 280ms and costs ~€2/month
cdn.fundraiseup.com adds 273ms and costs ~€2/month
static.fundraiseup.com adds 249ms and costs ~€2/month
Facebook Pixel adds 224ms and costs ~€1/month
static.fundraiseup.com adds 211ms and costs ~€1/month

82% 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

Unattributable takes 2016ms 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 1786ms 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 608ms 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 483ms 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

Facebook Pixel takes 426ms 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.fundraiseup.com takes 369ms 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.fundraiseup.com takes 357ms 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

83% of static.fundraiseup.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

Google Tag Manager takes 324ms 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 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

analytics.tiktok.com takes 312ms 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

Microsoft Clarity takes 311ms 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 305ms 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

siteintercept.qualtrics.com takes 303ms 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

59% of siteintercept.qualtrics.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

Google Tag Manager takes 280ms 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

cdn.fundraiseup.com 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.fundraiseup.com 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

89% of static.fundraiseup.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

Facebook Pixel takes 224ms 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.fundraiseup.com takes 211ms 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

71% of Google Tag Manager'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

72% of Google Tag Manager'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

71% of Google Tag Manager'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.