Performance

· 27 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

100

Accessibility

100

Best Practices

100

SEO

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

1.58 s

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

4.63 s

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

205 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.

1.58 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.

4.95 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

19 PASS 3 REVIEW 1 FIX

HTTP Caching

Action

No cache headers

FIX

No cache headers

No Cache-Control header found

Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

JS Execution Cost

Action

1602ms total JS execution

REVIEW

1602ms total JS execution

https://droidcove.com/: 636ms CPU time

Unattributable: 429ms CPU time

https://www.googletagmanager.com/gtag/js?id=G-4VBM...: 218ms CPU time

data:text/javascript;base64,d2luZG93LmRhdGFMYXllcj...: 142ms CPU time

https://droidcove.com/wp-content/themes/droidcove/...: 109ms CPU time

Third-party scripts: 218ms (14% of total)

Main Thread Breakdown

Script Evaluation 42% Other 22% Style & Layout 16% Script Parsing & Compilation 8% Rendering 6% Parse HTML & CSS 4%

Script	Total	Scripting	Parse/Compile	Party
https://droidcove.com/	636ms	98ms	6ms	1st
Unattributable	429ms	135ms	0ms	1st
https://www.googletagmanager.com/gtag/js?id=G-4VBMYJVY6L	218ms	131ms	81ms	3rd
data:text/javascript;base64,d2luZG93LmRhdGFMYXllcj13aW5kb3cuZGF0YUxheWVyfHxbXTtmdW5jdGlvbiBndGFnKCl7ZGF0YUxheWVyLnB1c2goYXJndW1lbnRzKX0KZ3RhZygnanMnLG5ldyBEYXRlKCkpO2d0YWcoJ2NvbmZpZycsJ0ctNFZCTVlKVlk2TCcp	142ms	139ms	1ms	1st
https://droidcove.com/wp-content/themes/droidcove/assets/js/plugins.js?ver=1781451770	109ms	60ms	33ms	1st
https://droidcove.com/wp-content/themes/droidcove/assets/js/jquery.js?ver=1781451771	69ms	47ms	15ms	1st

JS Bundles

14 scripts, 112 KB unused

REVIEW

14 scripts, 112 KB unused

https://www.googletagmanager.com/gtag/js?id=G-4VBM...: 73 KB unused (43%)

Consider code splitting or tree shaking to reduce unused code.

https://droidcove.com/wp-content/themes/droidcove/...: 39 KB unused (78%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 112 KB

112 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.googletagmanager.com/gtag/js?id=G-4VBMYJVY6L	170 KB	73 KB (43%)	✓	3rd
https://droidcove.com/wp-content/themes/droidcove/assets/js/plugins.js?ver=1781451770	52 KB	39 KB (78%)	✓	1st
https://droidcove.com/wp-content/themes/droidcove/assets/js/custom.js?ver=1781466289	1 KB	—	✓	1st
data:text/javascript;base64,KGZ1bmN0aW9uKCl7dmFyIG9jPWRvY3VtZW50LmdldEVsZW1lbnRCeUlkKCdkY19vZmZjYW5…	0 KB	—	✓	3rd
data:text/javascript;base64,KGZ1bmN0aW9uKCl7dmFyIGI9ZG9jdW1lbnQuYm9keSxzYXZlZD0wLGxvY2tlZD0hMTtkb2N…	0 KB	—	✓	3rd
data:text/javascript;base64,ZG9jdW1lbnQuYWRkRXZlbnRMaXN0ZW5lcignY2xpY2snLGZ1bmN0aW9uKGUpe3ZhciBiPWU…	0 KB	—	✓	3rd
data:text/javascript;base64,KGZ1bmN0aW9uKGh0bWwpe2h0bWwuY2xhc3NOYW1lPWh0bWwuY2xhc3NOYW1lLnJlcGxhY2U…	0 KB	—	✓	3rd
data:text/javascript;base64,d2luZG93LmRhdGFMYXllcj13aW5kb3cuZGF0YUxheWVyfHxbXTtmdW5jdGlvbiBndGFnKCl…	0 KB	—	✓	3rd
data:text/javascript;base64,KGZ1bmN0aW9uKCl7dmFyIHU9ZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoJ2RjX3VzZXInKSx…	0 KB	—	✓	3rd
https://droidcove.com/wp-content/themes/droidcove/assets/js/main.js?ver=1781462085	8 KB	—	✗	1st

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

Main HTML Cache-Control

No Cache-Control header on main HTML response

REVIEW

No Cache-Control header on main HTML response

Main HTML response has no Cache-Control header

Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.

A+

Page Weight Budget

465 KB transferred, 37 requests

PASS

465 KB transferred, 37 requests

Page weighs 1.3 MB (465 KB transferred)

37 HTTP requests

Estimated 0.10 g CO2 per page load

465 KB transferred

37 requests

0.10 g CO2 per page load

JavaScript 276.1 KiB 59%

Images 68.7 KiB 15%

Fonts 49.7 KiB 11%

HTML 38.4 KiB 8%

CSS 29.1 KiB 6%

Other 1.6 KiB 0%

Other 547 B 0%

Other 457 B 0%

0 2.4 MB 4.9 MB

Under budget

Third-Party Impact

39% third-party, 0 ms blocking

PASS

39% third-party, 0 ms blocking

Third-party code accounts for 39% of page weight (180.7 KiB of 464.6 KiB)

Third-party blocking time is low (0 ms)

61%

39%

First-party Third-party

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

13 images, 0 KB saveable

PASS

13 images, 0 KB saveable

All images are well-optimized

13 images 69 KB

0 oversized -0 KB

1 legacy format

0 missing dimensions CLS risk

A+

Font Loading

2 fonts (50 KB)

PASS

2 fonts (50 KB)

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

Web fonts

50 KB total

Render-blocking

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

space-grotesk-500-latin... woff2 swap

Size 22 KB

Load time 30 ms

Start 210 ms

Risk FOUT — text flashes from fallback to web font

plus-jakarta-sans-400-l... woff2 swap

Size 27 KB

Load time 30 ms

Start 210 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+

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

2 hints, 0 missing preconnects

PASS

2 hints, 0 missing preconnects

Page uses 2 resource hint(s)

Current Resource Hints

preconnect

—

preload

dns-prefetch

—

prefetch

—

2 resource hints configured

A+

HTTP/3 (QUIC)

HTTP/3 advertised via Alt-Svc

PASS

HTTP/3 advertised via Alt-Svc

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

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

LCP image preload audit not available for this scan

A+

Server-Timing Observability

3 Server-Timing entries advertised

PASS

3 Server-Timing entries advertised

Server-Timing header advertises 3 timing entries

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`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).

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+

Page Weight Inventory

37 resources · 465 KB · 112 KB savings available

PASS

37 resources · 465 KB · 112 KB savings available

Within 1MB page-weight target

Got: 465 KB

~112 KB of savings available

15 third-party resources (39% of weight)

37 resources · 464.6 KiB · 15 third-party Within 1MB page-weight target

JavaScript 59% · 276.1 KiB

Image 15% · 69.8 KiB

Font 11% · 49.7 KiB

Document 8% · 38.4 KiB

CSS 6% · 29.1 KiB

Other 0% · 1.5 KiB

~112.0 KiB of savings available

Remove unused JavaScript: 112.0 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

37 resources			464.6 KiB

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+

JavaScript Blocking

No render-blocking JS or document.write usage detected

PASS

No render-blocking JS or document.write usage detected

No JavaScript blocking issues detected

CSS Performance Depth

1 CSS depth issue(s) detected

PASS

1 CSS depth issue(s) detected

4 render-blocking stylesheet(s) -- recommended: <=3

Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.

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

37 requests over 865ms

INFO

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 218ms · 170KB · $4/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
Google Tag Manager www.googletagmanager.com	Tag Manager	218ms	170 KB	43%	$4/mo	Costly

Google Tag Manager

Tag Manager

Costly

Execution 218ms

Transfer 170 KB

Unused 43%

Monthly Cost $4/mo

These scripts may cost more than they're worth

Google Tag Manager adds 218ms and costs ~$4/month

Google Tag Manager takes 218ms 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

Real-User Performance (CrUX)

Field metrics from the Chrome User Experience Report

INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-08-06 — 2026-09-02)

LCP (p75)

2406 ms

77% good

INP (p75)

104 ms

91% good

CLS (p75)

0.000

96% good

FCP (p75)

2360 ms

TTFB (p75)

1840 ms

This origin passes Core Web Vitals assessment

Image Optimization

86 images, 66 KB total, 23 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

66 KB

Oversized

Wasted

23 KB

84 missing lazy loading

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