Skip to content
https://notehand.app

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
3
PASS
18
INFO
3

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

64
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
83
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

3.85 s

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

4.05 s

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

499 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.

4.60 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.

7.48 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
26
18 PASS 3 REVIEW 2 FIX
D
JS Execution Cost
Action
2159ms total JS execution
FIX
2159ms total JS execution
Warning::
https://notehand.app/assets/index-sJIST7MY.js: 773ms CPU time
Warning::
https://notehand.app/: 444ms CPU time
Warning::
Unattributable: 396ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-K0EG...: 299ms CPU time
Info::
https://notehand.app/cdn-cgi/challenge-platform/sc...: 247ms CPU time
Info::
Third-party scripts: 299ms (14% of total)

Main Thread Breakdown

Script Evaluation 48% Other 36% Style & Layout 11%
ScriptTotalScriptingParse/CompileParty
https://notehand.app/assets/index-sJIST7MY.js773ms509ms3ms1st
https://notehand.app/444ms34ms2ms1st
Unattributable396ms11ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZT299ms252ms45ms3rd
https://notehand.app/cdn-cgi/challenge-platform/scripts/jsd/main.js247ms236ms2ms1st
D
JS Bundles
Action
8 scripts, 256 KB unused
FIX
8 scripts, 256 KB unused
Warning::
https://notehand.app/assets/index-sJIST7MY.js: 185 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-K0EG...: 71 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://notehand.app/assets/vendor-icons-p8aawUMs....: unminified — 3 KB could be saved
Info::
Total unused JavaScript: 256 KB
256 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://notehand.app/assets/index-sJIST7MY.js270 KB185 KB (69%)1st
https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZT177 KB71 KB (40%)3rd
https://notehand.app/assets/vendor-motion-D_zvdyIk.js1 KB1st
https://notehand.app/assets/vendor-icons-p8aawUMs.js10 KB1st
https://notehand.app/assets/vendor-react-DasPH1iO.js2 KB1st
https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e178179150949611 KB3rd
https://notehand.app/assets/workbox-window.prod.es5-X279BU3z.js4 KB1st
https://notehand.app/cdn-cgi/challenge-platform/h/b/scripts/jsd/25e6c66701a0/main.js?9 KB1st

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

B
Third-Party Impact
54% third-party, 0 ms blocking
REVIEW
54% third-party, 0 ms blocking
Warning::
Third-party code accounts for 54% of page weight (368.4 KiB of 685.7 KiB)
Info::
Third-party blocking time is low (0 ms)
46%
54%
First-party Third-party
B
Page Weight Inventory
23 resources · 686 KB · 256 KB savings available
REVIEW
23 resources · 686 KB · 256 KB savings available
Info::
Within 1MB page-weight target
Got: 686 KB
Info::
~256 KB of savings available
Warning::
10 third-party resources (54% of weight)
Info::
1 resources over 200KB
23 resources · 685.7 KiB · 10 third-party Within 1MB page-weight target
JavaScript 70% · 483.4 KiB
Font 26% · 177.6 KiB
CSS 2% · 14.2 KiB
Other 1% · 3.9 KiB
Document 1% · 3.6 KiB
Image 0% · 3.0 KiB

~255.9 KiB of savings available

Remove unused JavaScript: 255.9 KiB
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
publicAny cache may store this response
max-age0Cache for 0 seconds
must-revalidateMust recheck with server after expiry
A+
Page Weight Budget
686 KB transferred, 23 requests
PASS
686 KB transferred, 23 requests
Info::
Page weighs 1.8 MB (686 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
686 KB / 2.4 MB budget
686 KB transferred
23 requests
0.14 g CO2 per page load
JavaScript 483.4 KiB 70%
Fonts 177.6 KiB 26%
CSS 14.2 KiB 2%
HTML 3.6 KiB 1%
Other 3.2 KiB 0%
Other 2.1 KiB 0%
Other 1.1 KiB 0%
Other 547 B 0%
Images 0 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
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
5 fonts (178 KB)
PASS
5 fonts (178 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

178 KB total

Render-blocking

0

of 5

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 FCP 3.8 s LCP 4.0 shttps://fonts.gstatic.com/s/caveat/v23/Wnz6HAc5bAfYB2Q7ZjYYiAzcPA.woff2Wnz6HAc5bAfYB2Q7ZjYYiAz... https://fonts.gstatic.com/s/caveat/v23/Wnz6HAc5bAfYB2Q7ZjYYiAzcPA.woff2 — 72.9 KiB — 126 ms — font-display: swaphttps://fonts.gstatic.com/s/patrickhand/v25/LDI1apSQOAYtSuYWp8ZhfYe8XsLLubg58w.woff2LDI1apSQOAYtSuYWp8ZhfYe... https://fonts.gstatic.com/s/patrickhand/v25/LDI1apSQOAYtSuYWp8ZhfYe8XsLLubg58w.woff2 — 13.9 KiB — 60 ms — font-display: swaphttps://fonts.gstatic.com/s/architectsdaughter/v20/KtkxAKiDZI_td1Lkx62xHZHDtgO_Y-bvTYlg4-7jA-U.woff2KtkxAKiDZI_td1Lkx62xHZH... https://fonts.gstatic.com/s/architectsdaughter/v20/KtkxAKiDZI_td1Lkx62xHZHDtgO_Y-bvTYlg4-7jA-U.woff2 — 12.9 KiB — 50 ms — font-display: swaphttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 80 ms — font-display: swaphttps://fonts.gstatic.com/s/jetbrainsmono/v24/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwgknk-4.woff2tDbv2o-flEEny0FZhsfKu5W... https://fonts.gstatic.com/s/jetbrainsmono/v24/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwgknk-4.woff2 — 30.6 KiB — 74 ms — font-display: swap
Wnz6HAc5bAfYB2Q7ZjYYiAz... woff2 swap
Size 73 KB
Load time 126 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
LDI1apSQOAYtSuYWp8ZhfYe... woff2 swap
Size 14 KB
Load time 60 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
KtkxAKiDZI_td1Lkx62xHZH... woff2 swap
Size 13 KB
Load time 50 ms
Start 1.6 s
Risk FOUT — text flashes from fallback to web font
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 80 ms
Start 1.7 s
Risk FOUT — text flashes from fallback to web font
tDbv2o-flEEny0FZhsfKu5W... woff2 swap
Size 31 KB
Load time 74 ms
Start 1.7 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)
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-Timing Observability
3 Server-Timing entries advertised
PASS
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+
Server Response Intelligence
3 server-response signal(s) detected
PASS
3 server-response signal(s) detected
Info::
`Cache-Status` header present (RFC 9211): "Netlify Edge"; fwd=miss
The page returns a `Cache-Status` header -- the standardized way for CDNs and caches to communicate per-hop cache state to debugging tools. Format: `Cache-Status: cdn-name; hit; ttl=300` (or `; fwd=miss` / `; fwd=stale`). Standard alternative to vendor-specific `X-Cache` patterns each CDN had historically. Cloudflare, Fastly, and Akamai all support emitting it.
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
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+
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
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
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

Network Waterfall
23 requests over 2157ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 3.8 s LCP 4.0 shttps://notehand.app// https://notehand.app/ — 200 — 3.6 KiB — 229 ms — h2https://fonts.googleapis.com/css2?family=Architects+Daughter&family=Caveat:wght@400;600;700&family=Indie+Flower&family=Patrick+Hand&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swapfonts.googleapis.com/css2?family=Ar... https://fonts.googleapis.com/css2?family=Architects+Daughter&family=Caveat:wght@400;600;700&family=Indie+Flower&family=Patrick+Hand&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap — 200 — 1.8 KiB — 162 ms — h2https://notehand.app/assets/index-sJIST7MY.js/assets/index-sJIST7MY.js https://notehand.app/assets/index-sJIST7MY.js — 200 — 270.0 KiB — 1.3 s — h2https://notehand.app/assets/vendor-motion-D_zvdyIk.js/assets/vendor-motion-D_zvdyIk.js https://notehand.app/assets/vendor-motion-D_zvdyIk.js — 200 — 917 B — 504 ms — h2https://notehand.app/assets/vendor-icons-p8aawUMs.js/assets/vendor-icons-p8aawUMs.js https://notehand.app/assets/vendor-icons-p8aawUMs.js — 200 — 9.6 KiB — 862 ms — h2https://notehand.app/assets/vendor-react-DasPH1iO.js/assets/vendor-react-DasPH1iO.js https://notehand.app/assets/vendor-react-DasPH1iO.js — 200 — 1.8 KiB — 635 ms — h2https://notehand.app/assets/index-Db1ISJ03.css/assets/index-Db1ISJ03.css https://notehand.app/assets/index-Db1ISJ03.css — 200 — 12.4 KiB — 604 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v4513226cdae34746b4dedf0b4dfa099e1781791509496 — 200 — 11.3 KiB — 91 ms — h2https://notehand.app/manifest.webmanifest/manifest.webmanifest https://notehand.app/manifest.webmanifest — 200 — 2.1 KiB — 275 ms — h3https://notehand.app/assets/workbox-window.prod.es5-X279BU3z.js/assets/workbox-window.prod.es5-X27... https://notehand.app/assets/workbox-window.prod.es5-X279BU3z.js — 200 — 3.6 KiB — 538 ms — h3https://notehand.app/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://notehand.app/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 258 B — 87 ms — h3https://fonts.gstatic.com/s/caveat/v23/Wnz6HAc5bAfYB2Q7ZjYYiAzcPA.woff2fonts.gstatic.com/s/caveat/v23/Wnz6... https://fonts.gstatic.com/s/caveat/v23/Wnz6HAc5bAfYB2Q7ZjYYiAzcPA.woff2 — 200 — 72.9 KiB — 126 ms — h3https://fonts.gstatic.com/s/patrickhand/v25/LDI1apSQOAYtSuYWp8ZhfYe8XsLLubg58w.woff2fonts.gstatic.com/s/patrickhand/v25... https://fonts.gstatic.com/s/patrickhand/v25/LDI1apSQOAYtSuYWp8ZhfYe8XsLLubg58w.woff2 — 200 — 13.9 KiB — 60 ms — h3https://fonts.gstatic.com/s/architectsdaughter/v20/KtkxAKiDZI_td1Lkx62xHZHDtgO_Y-bvTYlg4-7jA-U.woff2fonts.gstatic.com/s/architectsdaugh... https://fonts.gstatic.com/s/architectsdaughter/v20/KtkxAKiDZI_td1Lkx62xHZHDtgO_Y-bvTYlg4-7jA-U.woff2 — 200 — 12.9 KiB — 50 ms — h3https://notehand.app/cdn-cgi/rum?/cdn-cgi/rum? https://notehand.app/cdn-cgi/rum? — 204 — 461 B — 20 ms — h3data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%2…data:image/svg+xml,%3Csvg%20xmlns%3... data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2224%22%2… — 200 — 0 B — 0 ms — datahttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2fonts.gstatic.com/s/inter/v20/UcC73... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 200 — 47.3 KiB — 80 ms — h3https://fonts.gstatic.com/s/jetbrainsmono/v24/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwgknk-4.woff2fonts.gstatic.com/s/jetbrainsmono/v... https://fonts.gstatic.com/s/jetbrainsmono/v24/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwgknk-4.woff2 — 200 — 30.6 KiB — 74 ms — h3https://notehand.app/cdn-cgi/challenge-platform/h/b/scripts/jsd/25e6c66701a0/main.js?/cdn-cgi/challenge-platform/h/b/scr... https://notehand.app/cdn-cgi/challenge-platform/h/b/scripts/jsd/25e6c66701a0/main.js? — 200 — 9.1 KiB — 29 ms — h3https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZTwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-K0EGZGZFZT — 200 — 177.2 KiB — 273 ms — h2https://notehand.app/favicon.ico/favicon.ico https://notehand.app/favicon.ico — 200 — 3.0 KiB — 178 ms — h3https://notehand.app/cdn-cgi/challenge-platform/h/b/jsd/oneshot/25e6c66701a0/0.5756980030969684:1782803426:hqJRR7m65ruV7lEh8PP6U3xPKucDH8u5VkIDE2Fo0vA/a13b71dc1dd8d0b3/cdn-cgi/challenge-platform/h/b/jsd... https://notehand.app/cdn-cgi/challenge-platform/h/b/jsd/oneshot/25e6c66701a0/0.5756980030969684:1782803426:hqJRR7m65ruV7lEh8PP6U3xPKucDH8u5VkIDE2Fo0vA/a13b71dc1dd8d0b3 — 200 — 628 B — 25 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-K0EGZGZFZT&gtm=45je66q0h1v9254464946za200zd9254464946&_p=1782804409362&gcd=13l3l3l2l3l1&npa=1&dma_cps=a&dma=1&_eu=AAAAAAAC&are=1&cid=868850009.1782804410&frm=0&ngs=1&pscdl=noapi&rcb=13&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B149.0.7827.196%7CNot)A%253BBrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938469~118395333~119027224~119576881~119576885~119576891~119576895&dp=%2Fnotebook%2Ffile_1%2Fpage%2F1&dt=NoteHand%20-%20Notebook%201%20-%20Page%201&sid=1782804409&sct=1&seg=0&dl=https%3A%2F%2Fnotehand.app%2F&_tu=QAg&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&tfd=2069region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-K0EGZGZFZT&gtm=45je66q0h1v9254464946za200zd9254464946&_p=1782804409362&gcd=13l3l3l2l3l1&npa=1&dma_cps=a&dma=1&_eu=AAAAAAAC&are=1&cid=868850009.1782804410&frm=0&ngs=1&pscdl=noapi&rcb=13&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B149.0.7827.196%7CNot)A%253BBrand%3B24.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938469~118395333~119027224~119576881~119576885~119576891~119576895&dp=%2Fnotebook%2Ffile_1%2Fpage%2F1&dt=NoteHand%20-%20Notebook%201%20-%20Page%201&sid=1782804409&sct=1&seg=0&dl=https%3A%2F%2Fnotehand.app%2F&_tu=QAg&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.anonymize_ip=true&tfd=2069 — 204 — 547 B — 88 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
14% of JavaScript execution is third-party
First-party Third-party 299ms · 177KB · $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 299ms
Transfer 177 KB
Unused 40%
Monthly Cost $4/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 299ms and costs ~$4/month

Google Tag Manager takes 299ms 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
1 images, 2 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

1

Total Size

2 KB

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

Send Feedback