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https://googledomains.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
93
GRADE
A
FIX
1
REVIEW
0
PASS
14
INFO
2

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

Mobile Desktop
95
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

2.32 s

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

2.32 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.

0.000

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

2.32 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.

2.32 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
17
14 PASS 1 FIX
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 (75.5 KiB of 75.7 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
A+
Page Weight Budget
76 KB transferred, 8 requests
PASS
76 KB transferred, 8 requests
Info::
Page weighs 330 KB (76 KB transferred)
Info::
8 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
76 KB / 2.4 MB budget
76 KB transferred
8 requests
0.02 g CO2 per page load
Fonts 35.3 KiB 47%
CSS 23.9 KiB 32%
Images 11.6 KiB 15%
Other 2.7 KiB 4%
HTML 2.2 KiB 3%
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
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Warning::
https://domains.google/static/images/homepage/hero... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 12 KB
0 oversized -0 KB
2 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

A+
JS Execution Cost
282ms total JS execution
PASS
282ms total JS execution
Info::
Unattributable: 153ms CPU time
Info::
https://domains.google/: 129ms CPU time
Warning::
Third-party scripts: 282ms (100% of total)

Main Thread Breakdown

Other 51% Style & Layout 36% Parse HTML & CSS 6% Script Evaluation 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
Unattributable153ms6ms0ms3rd
https://domains.google/129ms5ms1ms3rd
A+
Font Loading
1 fonts (35 KB)
PASS
1 fonts (35 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

35 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 2.3 s LCP 2.3 shttps://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff24UasrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2 — 35.3 KiB — 54 ms — font-display: swap
4UasrENHsxJlGDuGo1OIlJf... woff2 swap
Size 35 KB
Load time 54 ms
Start 181 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)
A+
JS Bundles
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
Page uses 4 resource hint(s)

Current Resource Hints

preconnect
4
preload
—
dns-prefetch
—
prefetch
—

4 resource hints configured

A
Page Weight Inventory
8 resources · 76 KB · 0 KB savings available
PASS
8 resources · 76 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 76 KB
Warning::
7 third-party resources (100% of weight)
8 resources · 75.7 KiB · 7 third-party Within 1MB page-weight target
Font 47% · 35.3 KiB
CSS 32% · 23.9 KiB
Image 19% · 14.0 KiB
Document 3% · 2.5 KiB
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

A
HTTP Caching
max-age=1800 (30 minutes)
PASS
max-age=1800 (30 minutes)
Info::
Cache-Control header is set
Got: public, max-age=1800
Info::
Effective TTL: 30 minutes (max-age=1800)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=1800

DirectiveValueMeaning
public—Any cache may store this response
max-age1800Cache for 30 minutes
Effective TTL: 1800 seconds
Network Waterfall
8 requests over 235ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 2.3 s LCP 2.3 shttps://googledomains.com// https://googledomains.com/ — 301 — 249 B — 4 ms — h2https://domains.google/domains.google/ https://domains.google/ — 200 — 2.2 KiB — 30 ms — h2https://fonts.googleapis.com/css?family=Google+Sans:400,500,700|Google+Sans+Text:300,400,500,700|Material+Iconsfonts.googleapis.com/css?family=Goo... https://fonts.googleapis.com/css?family=Google+Sans:400,500,700|Google+Sans+Text:300,400,500,700|Material+Icons — 200 — 3.7 KiB — 61 ms — h2https://domains.google/static/css/main.min.cssdomains.google/static/css/main.min.... https://domains.google/static/css/main.min.css — 200 — 20.2 KiB — 28 ms — h2https://domains.google/static/images/logo/new_logo.svgdomains.google/static/images/logo/n... https://domains.google/static/images/logo/new_logo.svg — 200 — 2.0 KiB — 24 ms — h2https://domains.google/static/images/homepage/hero-final.svgdomains.google/static/images/homepa... https://domains.google/static/images/homepage/hero-final.svg — 200 — 9.6 KiB — 26 ms — h2https://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2fonts.gstatic.com/s/googlesans/v67/... https://fonts.gstatic.com/s/googlesans/v67/4UasrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RPjIUvbQoi-E.woff2 — 200 — 35.3 KiB — 54 ms — h3https://domains.google/favicon.icodomains.google/favicon.ico https://domains.google/favicon.ico — 200 — 2.4 KiB — 19 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 282ms · 2KB · €3/mo
Unattributable
Other
Optional
Execution 153ms
Transfer 0 KB
Monthly Cost €2/mo
domains.google
Other
Optional
Execution 129ms
Transfer 2 KB
Monthly Cost €1/mo

100% 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

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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