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Performance

· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
5
REVIEW
6
PASS
12
INFO
2

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

Mobile Desktop
38
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
94
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.
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.

3.60 s

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

19.37 s

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

1.07 s

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

0.001

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

7.88 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.

22.20 s

Page Load Progression

743 ms
1.5 s
2.2 s
3.0 s
3.7 s
4.5 s
5.2 s
5.9 s
Checks
25
12 PASS 6 REVIEW 5 FIX
D
Page Weight Budget
Action
2.6 MB transferred, 119 requests
FIX
2.6 MB transferred, 119 requests
Warning::
Page weighs 6.9 MB (2.6 MB transferred)
Warning::
JavaScript is 1.9 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.9 MB
Info::
Fonts are 244 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 244 KB
Warning::
119 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.54 g CO2 per page load
2.6 MB / 2.4 MB budget
2.6 MB transferred
119 requests
0.54 g CO2 per page load
JavaScript 1.9 MiB 74%
Fonts 244.4 KiB 9%
Other 214.0 KiB 8%
Images 93.7 KiB 4%
CSS 90.7 KiB 3%
HTML 25.0 KiB 1%
Other 8.4 KiB 0%
Other 2.8 KiB 0%
Other 552 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

D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (2.6 MiB of 2.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
5174ms total JS execution
FIX
5174ms total JS execution
Warning::
https://www.itau.com.br/gestao-de-cookies/polyfill...: 1658ms CPU time
Warning::
https://www.itau.com.br/: 1466ms CPU time
Warning::
Unattributable: 531ms CPU time
Warning::
https://www.itau.com.br/gestao-de-cookies/main.js: 422ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MMD...: 299ms CPU time
Warning::
Third-party scripts: 4643ms (90% of total)

Main Thread Breakdown

Script Evaluation 59% Other 15% Script Parsing & Compilation 9% Style & Layout 7% Rendering 6%
ScriptTotalScriptingParse/CompileParty
https://www.itau.com.br/gestao-de-cookies/polyfills.js1658ms1392ms21ms3rd
https://www.itau.com.br/1466ms495ms88ms3rd
Unattributable531ms18ms0ms1st
https://www.itau.com.br/gestao-de-cookies/main.js422ms363ms46ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MMDJ68X&gtm=4e65k1299ms199ms73ms3rd
https://www.itau.com.br/libs/webpack/public/caronte-public.js224ms165ms39ms3rd
https://www.googletagmanager.com/gtag/js?id=G-XX21YFL930&cx=c&gtm=4e65k1193ms154ms38ms3rd
https://cdn.evgnet.com/beacon/itauunibanco2/itau_br_prod/scripts/evergage.min.js160ms144ms14ms3rd
https://plugin.handtalk.me/web/latest/handtalk.min.js124ms85ms39ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5NGCP8C96ms60ms35ms3rd
F
JS Bundles
Action
47 scripts, 633 KB unused
FIX
47 scripts, 633 KB unused
Warning::
https://www.itau.com.br/gestao-de-cookies/main.js: 187 KB unused (32%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://plugin.handtalk.me/web/latest/sign.646cf9e...: 103 KB unused (95%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.itau.com.br/libs/webpack/public/caront...: 93 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XX21...: 65 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://plugin.handtalk.me/web/latest/handtalk.min...: 59 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 633 KB
633 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.itau.com.br/gestao-de-cookies/main.js590 KB187 KB (32%)✓3rd
https://plugin.handtalk.me/web/latest/sign.646cf9e8.js110 KB103 KB (95%)✓3rd
https://www.itau.com.br/libs/webpack/public/caronte-public.js191 KB93 KB (49%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XX21YFL930&cx=c&gtm=4e65k1165 KB65 KB (39%)✓3rd
https://plugin.handtalk.me/web/latest/handtalk.min.js149 KB59 KB (40%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5NGCP8C160 KB58 KB (36%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MMDJ68X&gtm=4e65k1187 KB43 KB (23%)✓3rd
https://www.itau.com.br/sdk-analytics/web.js81 KB24 KB (30%)✓3rd
https://www.itau.com.br/modules_idl/search_agency_idl/ts/search_agency_idl.js1 KB—✓3rd
https://www.itau.com.br/libs/scripts/iTagger-new.js7 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
Page Weight Inventory
Action
119 resources · 2.6 MB · 633 KB savings available
FIX
119 resources · 2.6 MB · 633 KB savings available
Warning::
Page weight 2.6 MB exceeds 1 MB target by 1.6 MB
Got: 2.6 MB Expected: ≤ 1 MB
Info::
~633 KB of savings available
Warning::
118 third-party resources (100% of weight)
Info::
1 resources over 200KB
119 resources · 2.6 MiB · 118 third-party 1.6 MiB over 1MB target
JavaScript 82% · 2.1 MiB
Font 9% · 244.4 KiB
Image 4% · 101.2 KiB
CSS 3% · 90.7 KiB
Document 1% · 28.6 KiB
Other 0% · 8.5 KiB

~632.6 KiB of savings available

Remove unused JavaScript: 632.6 KiB
B
Image Optimization
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Warning::
https://www.itau.com.br/media/dam/m/3d25b097a6a277... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
18 images 94 KB
0 oversized -0 KB
5 legacy format
1 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

B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
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
8 fonts (244 KB)
PASS
8 fonts (244 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

8

244 KB total

Render-blocking

0

of 8

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s FCP 3.6 s LCP 19.4 shttps://www.itau.com.br/assets/fonts/ItauTextPro_Bd.woff2ItauTextPro_Bd.woff2 https://www.itau.com.br/assets/fonts/ItauTextPro_Bd.woff2 — 18.2 KiB — 19 ms — font-display: swaphttps://www.itau.com.br/assets/fonts/ItauTextPro_Rg.woff2ItauTextPro_Rg.woff2 https://www.itau.com.br/assets/fonts/ItauTextPro_Rg.woff2 — 18.0 KiB — 41 ms — font-display: swaphttps://www.itau.com.br/assets/fonts/ItauDisplayPro_Bd.woff2ItauDisplayPro_Bd.woff2 https://www.itau.com.br/assets/fonts/ItauDisplayPro_Bd.woff2 — 18.0 KiB — 42 ms — font-display: swaphttps://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauTextPro_Bd.woff2ItauTextPro_Bd.woff2 https://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauTextPro_Bd.woff2 — 18.2 KiB — 647 ms — font-display: swaphttps://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauTextPro_Rg.woff2ItauTextPro_Rg.woff2 https://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauTextPro_Rg.woff2 — 18.0 KiB — 664 ms — font-display: swaphttps://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/Ids_Itau_Icons.woff2Ids_Itau_Icons.woff2 https://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/Ids_Itau_Icons.woff2 — 122.1 KiB — 686 ms — font-display: swaphttps://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauDisplayPro_Bd.woff2ItauDisplayPro_Bd.woff2 https://ids.cloud.itau.com.br/cdn/tokens/v1.28.0/web/assets/fonts/ItauDisplayPro_Bd.woff2 — 18.0 KiB — 658 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2S6u9w4BMUTPHh6UVSwiPGQ3... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2 — 13.9 KiB — 37 ms — font-display: swap
ItauTextPro_Bd.woff2 woff2 swap
Size 18 KB
Load time 19 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
ItauTextPro_Rg.woff2 woff2 swap
Size 18 KB
Load time 41 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
ItauDisplayPro_Bd.woff2 woff2 swap
Size 18 KB
Load time 42 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
ItauTextPro_Bd.woff2 woff2 swap
Size 18 KB
Load time 647 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
ItauTextPro_Rg.woff2 woff2 swap
Size 18 KB
Load time 664 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
Ids_Itau_Icons.woff2 woff2 swap
Size 122 KB
Load time 686 ms
Start 2.5 s
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
ItauDisplayPro_Bd.woff2 woff2 swap
Size 18 KB
Load time 658 ms
Start 2.5 s
Risk FOUT — text flashes from fallback to web font
S6u9w4BMUTPHh6UVSwiPGQ3... woff2 swap
Size 14 KB
Load time 37 ms
Start 3.6 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 ~61 KB and ~122 ms

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+
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: max-age=0
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Origin
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::
Total JS execution time is 5.2 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Network Waterfall
119 requests over 3651ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s FCP 3.6 s LCP 19.4 shttps://itau.com.br// https://itau.com.br/ — 301 — 242 B — 92 ms — h2https://www.itau.com.br/www.itau.com.br/ https://www.itau.com.br/ — 200 — 25.0 KiB — 35 ms — h2https://cdn.cookielaw.org/consent/018f6305-fe79-76f2-ab8e-89ca7ca6fa80/OtAutoBlock.jscdn.cookielaw.org/consent/018f6305-... https://cdn.cookielaw.org/consent/018f6305-fe79-76f2-ab8e-89ca7ca6fa80/OtAutoBlock.js — -1 — 0 B — 125 ms — https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — -1 — 0 B — 124 ms — https://www.itau.com.br/libs/styles-idl/main.csswww.itau.com.br/libs/styles-idl/mai... https://www.itau.com.br/libs/styles-idl/main.css — 200 — 26.4 KiB — 33 ms — h2https://www.itau.com.br/tokens_idl/varejo.csswww.itau.com.br/tokens_idl/varejo.c... https://www.itau.com.br/tokens_idl/varejo.css — 200 — 3.3 KiB — 22 ms — h2https://sdk-analytics-web.cloud.itau.com.br/index.jssdk-analytics-web.cloud.itau.com.br... https://sdk-analytics-web.cloud.itau.com.br/index.js — 200 — 7.8 KiB — 818 ms — h3https://bucketfileshiio-prd.cloud.itau.com.br/itau-sdk-interaction-studio/assets/sdk-interaction-studio-web-universal.min.jsbucketfileshiio-prd.cloud.itau.com.... https://bucketfileshiio-prd.cloud.itau.com.br/itau-sdk-interaction-studio/assets/sdk-interaction-studio-web-universal.min.js — 200 — 15.9 KiB — 127 ms — h2https://www.itau.com.br/modules_idl/header_idl/header_idl.csswww.itau.com.br/modules_idl/header_... https://www.itau.com.br/modules_idl/header_idl/header_idl.css — 200 — 6.2 KiB — 22 ms — h2https://www.itau.com.br/modules_idl/header_idl/ts/header_idl.jswww.itau.com.br/modules_idl/header_... https://www.itau.com.br/modules_idl/header_idl/ts/header_idl.js — 200 — 5.3 KiB — 63 ms — h2https://www.itau.com.br/media/dam/m/59ca6000bfbf59d6/original/ITAU_LOGO_HEX_48X48.pngwww.itau.com.br/media/dam/m/59ca600... https://www.itau.com.br/media/dam/m/59ca6000bfbf59d6/original/ITAU_LOGO_HEX_48X48.png — 200 — 5.4 KiB — 94 ms — h2https://www.itau.com.br/modules_idl/header_idl/ts/login_more_access_idl.jswww.itau.com.br/modules_idl/header_... https://www.itau.com.br/modules_idl/header_idl/ts/login_more_access_idl.js — 200 — 4.8 KiB — 63 ms — h2https://www.itau.com.br/libs/scripts-idl/ts/form-mask.jswww.itau.com.br/libs/scripts-idl/ts... https://www.itau.com.br/libs/scripts-idl/ts/form-mask.js — 200 — 1.9 KiB — 64 ms — h2https://www.itau.com.br/components_idl/form_field_idl/ts/form_field_idl.jswww.itau.com.br/components_idl/form... https://www.itau.com.br/components_idl/form_field_idl/ts/form_field_idl.js — 200 — 1.2 KiB — 89 ms — h2https://www.itau.com.br/components_idl/ids_modal_idl/ts/ids_modal_idl.jswww.itau.com.br/components_idl/ids_... https://www.itau.com.br/components_idl/ids_modal_idl/ts/ids_modal_idl.js — 200 — 2.2 KiB — 64 ms — 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h3https://region1.google-analytics.com/g/collect?v=2&tid=G-XX21YFL930&gtm=45je65k1v9122737903z89112447680za20gzb9112447680zd9112447680&_p=1779672278320&gcs=G100&gcd=13p3p3p2l5l1&npa=1&dma_cps=-&dma=1&gdid=dYWJhMj&_eu=AAAAAGA&are=1&cid=2052048347.1779672280&frm=0&pscdl=denied&rcb=17&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.178&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~118689382&dt=%2Fhome&sid=1779672279&sct=1&seg=0&dl=https%3A%2F%2Fwww.itau.com.br%2F&en=screen_view&_fv=1&_nsi=1&_ss=2&ep.custom_path=%2Fhome&ep.gtm_id=GTM-5NGCP8C&ep.gtm_version=84&ep.implementation_team=canal-itau-nao-logado&ep.environment=nao-logado&ep.business=pf&ep.business_channel=institucional&ep.flow=pf%3Avarejo&ep.sdk_analytics_web_version=0.13.0&ep.previous_screen_name=entrance&ep.screen_name=%2Fhome&tfd=2697region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-XX21YFL930&gtm=45je65k1v9122737903z89112447680za20gzb9112447680zd9112447680&_p=1779672278320&gcs=G100&gcd=13p3p3p2l5l1&npa=1&dma_cps=-&dma=1&gdid=dYWJhMj&_eu=AAAAAGA&are=1&cid=2052048347.1779672280&frm=0&pscdl=denied&rcb=17&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.178&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&gaf=2&_s=1&tag_exp=0~115938465~115938469~118689382&dt=%2Fhome&sid=1779672279&sct=1&seg=0&dl=https%3A%2F%2Fwww.itau.com.br%2F&en=screen_view&_fv=1&_nsi=1&_ss=2&ep.custom_path=%2Fhome&ep.gtm_id=GTM-5NGCP8C&ep.gtm_version=84&ep.implementation_team=canal-itau-nao-logado&ep.environment=nao-logado&ep.business=pf&ep.business_channel=institucional&ep.flow=pf%3Avarejo&ep.sdk_analytics_web_version=0.13.0&ep.previous_screen_name=entrance&ep.screen_name=%2Fhome&tfd=2697 — 204 — 549 B — 84 ms — h2https://dev.visualwebsiteoptimizer.com/dcdn/settings.js?a=740921&settings_type=4&ts=1779453025&dt=mobile&cc=ESdev.visualwebsiteoptimizer.com/dcdn... https://dev.visualwebsiteoptimizer.com/dcdn/settings.js?a=740921&settings_type=4&ts=1779453025&dt=mobile&cc=ES — 200 — 5.8 KiB — 32 ms — h3https://fonts.googleapis.com/css2?family=Lato:wght@400;700;900&display=swapfonts.googleapis.com/css2?family=La... https://fonts.googleapis.com/css2?family=Lato:wght@400;700;900&display=swap — 200 — 914 B — 162 ms — h2https://plugin.handtalk.me/web/latest/sign.646cf9e8.jsplugin.handtalk.me/web/latest/sign.... https://plugin.handtalk.me/web/latest/sign.646cf9e8.js — 200 — 109.9 KiB — 37 ms — h2https://plugin.handtalk.me/web/latest/AddonsApp.835704ef.jsplugin.handtalk.me/web/latest/Addon... https://plugin.handtalk.me/web/latest/AddonsApp.835704ef.js — 200 — 31.3 KiB — 41 ms — h2https://plugin.handtalk.me/web/latest/sign.31460580.jsplugin.handtalk.me/web/latest/sign.... https://plugin.handtalk.me/web/latest/sign.31460580.js — 200 — 83.0 KiB — 40 ms — h2https://www.itau.com.br/media/dam/m/7dbc5f84a0688349/original/logo-16px.pngwww.itau.com.br/media/dam/m/7dbc5f8... https://www.itau.com.br/media/dam/m/7dbc5f84a0688349/original/logo-16px.png — 200 — 613 B — 20 ms — h2https://www.itau.com.br/media/dam/m/39c1bb1de2d2168/original/favicon.icowww.itau.com.br/media/dam/m/39c1bb1... https://www.itau.com.br/media/dam/m/39c1bb1de2d2168/original/favicon.ico — 200 — 6.1 KiB — 16 ms — h2https://www.itau.com.br/media/dam/m/4b2c52dd8411f2d5/original/logo-32px.pngwww.itau.com.br/media/dam/m/4b2c52d... https://www.itau.com.br/media/dam/m/4b2c52dd8411f2d5/original/logo-32px.png — 200 — 848 B — 16 ms — h2https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2fonts.gstatic.com/s/lato/v25/S6u9w4... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2 — 200 — 13.9 KiB — 37 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
90% of JavaScript execution is third-party
First-party Third-party 4643ms · 1547KB · R$57/mo
www.itau.com.br
Other
Costly
Execution 1658ms
Transfer 34 KB
Monthly Cost R$20/mo
www.itau.com.br
Other
Costly
Execution 1466ms
Transfer 25 KB
Monthly Cost R$18/mo
www.itau.com.br
Other
Costly
Execution 422ms
Transfer 590 KB
Unused 32%
Monthly Cost R$5/mo
Google Tag Manager
Tag Manager
Costly
Execution 299ms
Transfer 187 KB
Unused 23%
Monthly Cost R$4/mo
www.itau.com.br
Other
Costly
Execution 224ms
Transfer 191 KB
Unused 49%
Monthly Cost R$3/mo
Google Tag Manager
Tag Manager
Optional
Execution 193ms
Transfer 165 KB
Unused 39%
Monthly Cost R$2/mo
cdn.evgnet.com
Other
Optional
Execution 160ms
Transfer 45 KB
Monthly Cost R$2/mo
plugin.handtalk.me
Other
Optional
Execution 124ms
Transfer 149 KB
Unused 40%
Monthly Cost R$2/mo
Google Tag Manager
Tag Manager
Optional
Execution 96ms
Transfer 160 KB
Unused 36%
Monthly Cost R$1/mo

These scripts may cost more than they're worth

  • www.itau.com.br adds 1658ms and costs ~R$20/month
  • www.itau.com.br adds 1466ms and costs ~R$18/month
  • www.itau.com.br adds 422ms and costs ~R$5/month
  • Google Tag Manager adds 299ms and costs ~R$4/month
  • www.itau.com.br adds 224ms and costs ~R$3/month

90% 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

www.itau.com.br takes 1658ms 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

www.itau.com.br takes 1466ms 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

www.itau.com.br takes 422ms 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 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

www.itau.com.br 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

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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