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

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.

4.39 s

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

6.33 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.

0.002

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

7.54 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.

6.40 s

Page Load Progression

592 ms

1.2 s

1.8 s

2.4 s

3.0 s

3.6 s

4.1 s

4.7 s

Checks

14 PASS 8 REVIEW 2 FIX

Third-Party Impact

Action

99% third-party, 0 ms blocking

FIX

99% third-party, 0 ms blocking

Third-party code accounts for 99% of page weight (1.1 MiB of 1.1 MiB)

Third-party blocking time is low (0 ms)

99%

First-party Third-party

JS Execution Cost

Action

2802ms total JS execution

FIX

2802ms total JS execution

https://newmexa334d.blogspot.com/?m=1: 1457ms CPU time

https://newmexa334d.blogspot.com/?m=1#home: 884ms CPU time

Unattributable: 300ms CPU time

https://cdn.tailwindcss.com/: 160ms CPU time

Third-party scripts: 160ms (6% of total)

Main Thread Breakdown

Script Evaluation 39% Other 30% Style & Layout 20% Rendering 6%

Script	Total	Scripting	Parse/Compile	Party
https://newmexa334d.blogspot.com/?m=1	1457ms	172ms	1ms	1st
https://newmexa334d.blogspot.com/?m=1#home	884ms	799ms	4ms	1st
Unattributable	300ms	6ms	0ms	1st
https://cdn.tailwindcss.com/	160ms	121ms	30ms	3rd

Page Weight Budget

1.1 MB transferred, 45 requests

REVIEW

1.1 MB transferred, 45 requests

Page weighs 1.6 MB (1.1 MB transferred)

Fonts are 292 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 292 KB

45 HTTP requests

Estimated 0.24 g CO2 per page load

1.1 MB transferred

45 requests

0.24 g CO2 per page load

Images 694.6 KiB 60%

Fonts 291.9 KiB 25%

JavaScript 128.7 KiB 11%

CSS 22.6 KiB 2%

HTML 13.5 KiB 1%

Other 1.2 KiB 0%

0 2.4 MB 4.9 MB

Under budget

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

Image Optimization

Action

28 images, 0 KB saveable

REVIEW

28 images, 0 KB saveable

https://i.ibb.co/5hsKqnyp/Mexa-Motion-Logo.png is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

https://images.unsplash.com/photo-1522071820081-00... is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

28 images 695 KB

0 oversized -0 KB

6 legacy format

2 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

Document Compression

Document response uses gzip; brotli would be ~20% smaller

REVIEW

Document response uses gzip; brotli would be ~20% smaller

Main HTML response uses gzip (brotli would be ~20% smaller)

All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

Asset Compression

2 of 2 asset hosts still on gzip

REVIEW

2 of 2 asset hosts still on gzip

upload.wikimedia.org serves assets with gzip; brotli would be ~20% smaller (assets: 4)

Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.

Got: upload.wikimedia.org (image/svg+xml)

unpkg.com serves assets with gzip; brotli would be ~20% smaller (assets: 3)

Got: unpkg.com (text/css)

Server-Timing Observability

No Server-Timing header found

REVIEW

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.

Page Weight Inventory

45 resources · 1.1 MB · 0 KB savings available

REVIEW

45 resources · 1.1 MB · 0 KB savings available

Page weight 1.1 MB exceeds 1 MB target by 129 KB

Got: 1.1 MB Expected: ≤ 1 MB

41 third-party resources (99% of weight)

45 resources · 1.1 MiB · 41 third-party 128.6 KiB over 1MB target

Image 60% · 695.1 KiB

Font 25% · 291.9 KiB

JavaScript 11% · 128.7 KiB

CSS 2% · 22.6 KiB

Document 1% · 13.8 KiB

Other 0% · 469 B

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

45 resources			1.1 MiB

JavaScript Blocking

2 JS blocking issue(s) detected

REVIEW

2 JS blocking issue(s) detected

2 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.

Page uses document.write() -- disables Chrome's preload scanner

`document.write()` blocks all parallel resource discovery while it executes. Chrome explicitly disables the preload scanner on connections it judges slow when document.write is detected, serializing the entire subtree load. Almost always third-party ad / analytics legacy code; replacing with createElement + appendChild (or refusing to integrate the offending vendor) recovers significant load-time on mobile.

HTTP Caching

private, max-age=0

REVIEW

private, max-age=0

Cache-Control header is set

Got: private, max-age=0

ETag present — enables conditional (304) responses

Last-Modified header present

Cache-Control

private, max-age=0

Directive	Value	Meaning
private	—	Only browser cache, not CDN/proxy
max-age	0	Cache for 0 seconds

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

7 fonts (292 KB)

PASS

7 fonts (292 KB)

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

Web fonts

292 KB total

Render-blocking

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

pxiByp8kv8JHgFVrLEj6Z1x... woff2 swap

Size 8 KB

Load time 60 ms

Start 1.3 s