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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
71
GRADE
C
FIX
4
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
77
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
76
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
69
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.

962 ms

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

4.50 s

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

0 ms

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

0.012

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

983 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

4.50 s

Page Load Progression

453 ms
906 ms
1.4 s
1.8 s
2.3 s
2.7 s
3.2 s
3.6 s
Checks
15
7 PASS 2 REVIEW 4 FIX
F
Page Weight Budget
Action
24.5 MB transferred, 37 requests
FIX
24.5 MB transferred, 37 requests
Critical::
Page weighs 25.9 MB (24.5 MB transferred)
Warning::
Images are 23.7 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 23.7 MB
Warning::
JavaScript is 547 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 547 KB
Info::
Fonts are 201 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 201 KB
Info::
37 HTTP requests
Info::
Estimated 5.1 g CO2 per page load
24.5 MB / 2.4 MB budget
24.5 MB transferred
37 requests
5.1 g CO2 per page load
Images 23.7 MiB 97%
JavaScript 546.6 KiB 2%
Fonts 200.8 KiB 1%
HTML 40.8 KiB 0%
CSS 16.8 KiB 0%
Other 1.7 KiB 0%
Other 560 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

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 (24.5 MiB of 24.5 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Bundles
Action
7 scripts, 311 KB unused
FIX
7 scripts, 311 KB unused
Warning::
https://translate.googleapis.com/_/translate_http/...: 92 KB unused (78%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-XXXX...: 82 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-T6R...: 73 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-DY1T...: 64 KB unused (44%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 311 KB
311 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.es.tx2xLY0E1vs.O/am=AAAAAQ/d=1/exm=el_conf/ed=1/rs=AN8SPfqpxCvJC7xM-EE7YNgj9y6xTg0LGA/m=el_main118 KB92 KB (78%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXX137 KB82 KB (60%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-T6RPFPRD111 KB73 KB (66%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-DY1T9T89QG&cx=c&gtm=4e64h1146 KB64 KB (44%)✓3rd
https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit28 KB—✓3rd
https://workspaceupdates.googleblog.com/js/cookienotice.js2 KB—✓1st
https://translate-pa.googleapis.com/v1/supportedLanguages?client=te&display_language=es&key=AIzaSyBWDj0QJvVIx8XOhRegXX5_SrRWxhT5Hs4&callback=callback3 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

D
Page Weight Inventory
Action
37 resources · 24.5 MB · 311 KB savings available
FIX
37 resources · 24.5 MB · 311 KB savings available
Warning::
Page weight 23.5 MB over 1MB target
Got: 24.5 MB Expected: ≤ 1 MB
Info::
~311 KB of savings available
Warning::
35 third-party resources (100% of weight)
Info::
4 resources over 200KB
37 resources · 24.5 MiB · 35 third-party 23.5 MiB over 1MB target
Image 97% · 23.7 MiB
JavaScript 2% · 546.6 KiB
Font 1% · 200.8 KiB
Document 0% · 40.8 KiB
CSS 0% · 16.8 KiB
Other 0% · 560 B

~310.8 KiB of savings available

Remove unused JavaScript: 310.8 KiB
C
Image Optimization
Action
17 images, 0 KB saveable
REVIEW
17 images, 0 KB saveable
Warning::
https://services.google.com/fh/files/misc/wsu_blog... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://services.google.com/fh/files/misc/banner_u... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blogger.googleusercontent.com/img/b/R29vZ2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.gstatic.com/images/branding/productlog... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blogger.googleusercontent.com/img/b/R29vZ2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blogger.googleusercontent.com/img/b/R29vZ2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://blogger.googleusercontent.com/img/b/R29vZ2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
17 images 23.7 MB
0 oversized -0 KB
17 legacy format
7 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

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

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

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 Caching
private, max-age=0
REVIEW
private, max-age=0
Info::
Cache-Control header is set
Got: private, max-age=0
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

private, max-age=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
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+
JS Execution Cost
476ms total JS execution
PASS
476ms total JS execution
Warning::
https://workspaceupdates.googleblog.com/: 250ms CPU time
Info::
Unattributable: 157ms CPU time
Info::
https://translate.googleapis.com/_/translate_http/...: 68ms CPU time
Info::
Third-party scripts: 225ms (47% of total)

Main Thread Breakdown

Other 40% Script Evaluation 23% Style & Layout 21% Rendering 7% Script Parsing & Compilation 7%
ScriptTotalScriptingParse/CompileParty
https://workspaceupdates.googleblog.com/250ms8ms7ms1st
Unattributable157ms3ms0ms3rd
https://translate.googleapis.com/_/translate_http/_/js/k=translate_http.tr.es.tx2xLY0E1vs.O/am=AAAAAQ/d=1/exm=el_conf/ed=1/rs=AN8SPfqpxCvJC7xM-EE7YNgj9y6xTg0LGA/m=el_main68ms42ms8ms3rd
A+
Font Loading
4 fonts (201 KB)
PASS
4 fonts (201 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

201 KB total

Render-blocking

0

of 4

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 962 ms LCP 4.5 shttps://fonts.gstatic.com/s/googlesans/v60/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff24UasrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v60/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2 — 33.4 KiB — 65 ms — font-display: swaphttps://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2flUhRq6tzZclQEJ-Vdg-Iui... https://fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff2 — 125.6 KiB — 84 ms — font-display: swaphttps://fonts.gstatic.com/s/googlesanstext/v25/5aUp9-KzpRiLCAt4Unrc-xIKmCU5oLlVnmhjtjm4DZw.woff25aUp9-KzpRiLCAt4Unrc-xI... https://fonts.gstatic.com/s/googlesanstext/v25/5aUp9-KzpRiLCAt4Unrc-xIKmCU5oLlVnmhjtjm4DZw.woff2 — 22.8 KiB — 63 ms — font-display: swaphttps://fonts.gstatic.com/s/googlesans/v60/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPlwUvbQoi-Entw.woff24UasrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v60/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPlwUvbQoi-Entw.woff2 — 19.0 KiB — 63 ms — font-display: swap
4UasrENHsxJlGDuGo1OIlJf... woff2 swap
Size 33 KB
Load time 65 ms
Start 473 ms
Risk FOUT — text flashes from fallback to web font
flUhRq6tzZclQEJ-Vdg-Iui... woff2 swap
Size 126 KB
Load time 84 ms
Start 474 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
5aUp9-KzpRiLCAt4Unrc-xI... woff2 swap
Size 23 KB
Load time 63 ms
Start 481 ms
Risk FOUT — text flashes from fallback to web font
4UasrENHsxJlGDuGo1OIlJf... woff2 swap
Size 19 KB
Load time 63 ms
Start 481 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)

Fixing the unchecked items could save ~63 KB and ~126 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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

Network Waterfall
37 requests over 1347ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 962 ms LCP 4.5 shttps://workspaceupdates.googleblog.com// https://workspaceupdates.googleblog.com/ — 200 — 40.8 KiB — 296 ms — h2https://www.blogger.com/static/v1/widgets/2944754296-widget_css_bundle.csswww.blogger.com/static/v1/widgets/2... https://www.blogger.com/static/v1/widgets/2944754296-widget_css_bundle.css — 200 — 6.9 KiB — 74 ms — h2https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXXwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXX — 200 — 137.1 KiB — 138 ms — h2https://fonts.googleapis.com/css?family=Google+Sans+Text:400,500,700,400i,500i,700i|Google+Sans_old:400,500,700|Google+Sans+Display:400,500,700|Product+Sans:400fonts.googleapis.com/css?family=Goo... https://fonts.googleapis.com/css?family=Google+Sans+Text:400,500,700,400i,500i,700i|Google+Sans_old:400,500,700|Google+Sans+Display:400,500,700|Product+Sans:400 — 200 — 4.0 KiB — 83 ms — h2https://fonts.googleapis.com/icon?family=Material+Iconsfonts.googleapis.com/icon?family=Ma... https://fonts.googleapis.com/icon?family=Material+Icons — 200 — 817 B — 74 ms — h2https://storage.googleapis.com/prod-fiber/blog/icon-hamburger.svgstorage.googleapis.com/prod-fiber/b... https://storage.googleapis.com/prod-fiber/blog/icon-hamburger.svg — 200 — 651 B — 72 ms — h2https://www.gstatic.com/images/branding/productlogos/googleg/v6/36px.svgwww.gstatic.com/images/branding/pro... https://www.gstatic.com/images/branding/productlogos/googleg/v6/36px.svg — 200 — 870 B — 73 ms — h2https://services.google.com/fh/files/misc/banner_updated_gwsu.pngservices.google.com/fh/files/misc/b... https://services.google.com/fh/files/misc/banner_updated_gwsu.png — 200 — 20.7 KiB — 101 ms — h2https://storage.googleapis.com/prod-fiber/blog/default_blue.svgstorage.googleapis.com/prod-fiber/b... https://storage.googleapis.com/prod-fiber/blog/default_blue.svg — 200 — 1.2 KiB — 33 ms — h2https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInittranslate.google.com/translate_a/el... https://translate.google.com/translate_a/element.js?cb=googleTranslateElementInit — 200 — 28.3 KiB — 113 ms — h2https://storage.googleapis.com/prod-fiber/blog/icon-youtube.svgstorage.googleapis.com/prod-fiber/b... https://storage.googleapis.com/prod-fiber/blog/icon-youtube.svg — 200 — 816 B — 35 ms — h2https://workspace.google.com/lp/static/images/social-x.svg?fingerprint=33322732705ac1c58354be11deb19821workspace.google.com/lp/static/imag... https://workspace.google.com/lp/static/images/social-x.svg?fingerprint=33322732705ac1c58354be11deb19821 — 200 — 4.2 KiB — 87 ms — h2https://storage.googleapis.com/prod-fiber/blog/icon-linkedin.svgstorage.googleapis.com/prod-fiber/b... https://storage.googleapis.com/prod-fiber/blog/icon-linkedin.svg — 200 — 680 B — 36 ms — h2https://storage.googleapis.com/prod-fiber/blog/icon-expand-more.svgstorage.googleapis.com/prod-fiber/b... https://storage.googleapis.com/prod-fiber/blog/icon-expand-more.svg — 200 — 412 B — 37 ms — h2https://workspaceupdates.googleblog.com/js/cookienotice.js/js/cookienotice.js https://workspaceupdates.googleblog.com/js/cookienotice.js — 200 — 2.3 KiB — 29 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-T6RPFPRDwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-T6RPFPRD — 200 — 111.3 KiB — 62 ms — h2https://www.blogger.com/dyn-css/authorization.css?targetBlogID=5245696872621940063&zx=3210f80f-37e6-4f59-834f-ad964e6deecdwww.blogger.com/dyn-css/authorizati... https://www.blogger.com/dyn-css/authorization.css?targetBlogID=5245696872621940063&zx=3210f80f-37e6-4f59-834f-ad964e6deecd — 200 — 684 B — 664 ms — h2https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnRc5O6vYAEr0XPCJYhsXCMW-FSWTjIyEq9-FMYmBlV4Nhz8xkyo2t9aO7m1RXD_KxCrhLI3EtuTMtHarLokqMrTE3gvF6bP-M6gm2fLGPITCQGvEIiJKohbfBDaYm4uAxpS066zvQV4ITNHAtXfaCuAymZbNmtVIRv-tnQslfWXIJYnJr19DFzXfNec0/s16000/Seamlessly%20join%20meetings%20on%20Google%20Meet%20hardware%20with%20%E2%80%9CConnect%20room%E2%80%9D%20-%206589%20-%201.gifblogger.googleusercontent.com/img/b... https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnRc5O6vYAEr0XPCJYhsXCMW-FSWTjIyEq9-FMYmBlV4Nhz8xkyo2t9aO7m1RXD_KxCrhLI3EtuTMtHarLokqMrTE3gvF6bP-M6gm2fLGPITCQGvEIiJKohbfBDaYm4uAxpS066zvQV4ITNHAtXfaCuAymZbNmtVIRv-tnQslfWXIJYnJr19DFzXfNec0/s16000/Seamlessly%20join%20meetings%20on%20Google%20Meet%20hardware%20with%20%E2%80%9CConnect%20room%E2%80%9D%20-%206589%20-%201.gif — 200 — 3.4 MiB — 489 ms — h2https://services.google.com/fh/files/misc/wsu_blog_thumbnail_images_top-bottom-border_graphic.pngservices.google.com/fh/files/misc/w... https://services.google.com/fh/files/misc/wsu_blog_thumbnail_images_top-bottom-border_graphic.png — 200 — 8.0 KiB — 99 ms — h2https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhB41ENSO1xpckEbsfNUi_OscJ4EsPeenQUHBAIvbjLYY4qNAxaBwvZFJ-PN_bGt86WAi9mRbTMXf7-8Ws6aJV9pQXgMMbAVdp56OAYCizNf-ncfUb2-x1CXj-fQ6Snwc5DZC-BzWTTgeUM9pQfbUNOfG7GWIjlIHWKStznob0h8uapwLIArk1nC7h8AFk/s16000/Streamlining%20admin%20controls%20for%20Gemini%20Enterprise%20in%20the%20Google%20Workspace%20Admin%20console.pngblogger.googleusercontent.com/img/b... https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhB41ENSO1xpckEbsfNUi_OscJ4EsPeenQUHBAIvbjLYY4qNAxaBwvZFJ-PN_bGt86WAi9mRbTMXf7-8Ws6aJV9pQXgMMbAVdp56OAYCizNf-ncfUb2-x1CXj-fQ6Snwc5DZC-BzWTTgeUM9pQfbUNOfG7GWIjlIHWKStznob0h8uapwLIArk1nC7h8AFk/s16000/Streamlining%20admin%20controls%20for%20Gemini%20Enterprise%20in%20the%20Google%20Workspace%20Admin%20console.png — 200 — 259.3 KiB — 343 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
47% of JavaScript execution is third-party
First-party Third-party 225ms · 118KB · €2/mo
Unattributable
Other
Optional
Execution 157ms
Transfer 0 KB
Monthly Cost €2/mo
translate.googleapis.com
Other
Optional
Execution 68ms
Transfer 118 KB
Unused 78%
Monthly Cost €1/mo

47% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

78% of translate.googleapis.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

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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