Performance

· 17 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

Best Practices

SEO

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

2.65 s

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

3.25 s

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

68 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.

2.96 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.

3.72 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

10 PASS 4 REVIEW 1 FIX

Third-Party Impact

Action

76% third-party, 0 ms blocking

FIX

76% third-party, 0 ms blocking

Third-party code accounts for 76% of page weight (140.2 KiB of 183.9 KiB)

Third-party blocking time is low (0 ms)

24%

76%

First-party Third-party

Image Optimization

11 images, 0 KB saveable

REVIEW

11 images, 0 KB saveable

https://mailenable.com/images/me_logo.png is missing width/height — may cause layout shift

Set explicit width and height to prevent CLS.

11 images 14 KB

0 oversized -0 KB

9 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

JS Execution Cost

737ms total JS execution

REVIEW

737ms total JS execution

https://ajax.googleapis.com/ajax/libs/jquery/1.11....: 389ms CPU time

Unattributable: 175ms CPU time

https://ajax.googleapis.com/ajax/libs/jquerymobile...: 121ms CPU time

https://mailenable.com/: 53ms CPU time

Third-party scripts: 685ms (93% of total)

Main Thread Breakdown

Script Evaluation 47% Other 23% Style & Layout 14% Parse HTML & CSS 7% Script Parsing & Compilation 6%

Script	Total	Scripting	Parse/Compile	Party
https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js	389ms	238ms	13ms	3rd
Unattributable	175ms	7ms	0ms	3rd
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js	121ms	83ms	26ms	3rd
https://mailenable.com/	53ms	5ms	2ms	1st

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

HTTP Caching

private

REVIEW

private

Cache-Control header is set

Got: private

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

private

Directive	Value	Meaning
private	—	Only browser cache, not CDN/proxy

A+

Page Weight Budget

184 KB transferred, 23 requests

PASS

184 KB transferred, 23 requests

Page weighs 613 KB (184 KB transferred)

23 HTTP requests

Estimated 0.04 g CO2 per page load

184 KB transferred

23 requests

0.04 g CO2 per page load

JavaScript 113.0 KiB 61%

CSS 42.2 KiB 23%

Images 14.3 KiB 8%

HTML 12.7 KiB 7%

Other 1.6 KiB 1%

0 2.4 MB 4.9 MB

Under budget

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

No web fonts (system fonts)

PASS

No web fonts (system fonts)

No web fonts loaded — system fonts are fastest

No web fonts loaded — system fonts are optimal.

A+

JS Bundles

4 scripts, 36 KB unused

PASS

4 scripts, 36 KB unused

https://ajax.googleapis.com/ajax/libs/jquerymobile...: 36 KB unused (65%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 36 KB

36 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://ajax.googleapis.com/ajax/libs/jquerymobile/1.4.5/jquery.mobile.min.js	55 KB	36 KB (65%)	✓	3rd
https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js	33 KB	—	✓	3rd
https://www.googleadservices.com/pagead/conversion.js	24 KB	—	✓	3rd
https://googleads.g.doubleclick.net/pagead/viewthroughconversion/1070463273/?random=1776901286432&cv=9&fst=1776901286432&num=1&label=bKHOCKeR-QQQqfK3_gM&guid=ON&resp=GooglemKTybQhCsO&eid=375603261%2C466465926%2C512247839%2C658953496&u_h=823&u_w=412&ig=1&frm=0&url=https%3A%2F%2Fmailenable.com%2F&tiba=Windows%20Mail%20Server%2C%20Email%20Server%20Software%2C%20Mail%20Servers%20%7C%20MailEnable&hn=www.googleadservices.com&rfmt=3&fmt=4	2 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

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

No optimization needed

PASS

No optimization needed

No resource hint issues

Page Weight Inventory

23 resources · 184 KB · 36 KB savings available

PASS

23 resources · 184 KB · 36 KB savings available

Within 1MB page-weight target

Got: 184 KB

12 third-party resources (76% of weight)

23 resources · 183.9 KiB · 12 third-party Within 1MB page-weight target

JavaScript 61% · 113.0 KiB

CSS 23% · 42.2 KiB

Image 9% · 16.0 KiB

Document 7% · 12.7 KiB

~35.6 KiB of savings available

Remove unused JavaScript: 35.6 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

23 resources			183.9 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

Network Waterfall

23 requests over 2022ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Third-Party Script Cost

Per-script blocking time, transfer cost, and cache headers

INFO

93% of JavaScript execution is third-party

First-party Third-party 685ms · 87KB · CA$9/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
ajax.googleapis.com ajax.googleapis.com	Other	389ms	33 KB	—	CA$5/mo	Costly
Unattributable Unattributable	Other	175ms	0 KB	—	CA$2/mo	Optional
ajax.googleapis.com ajax.googleapis.com	Other	121ms	55 KB	65%	CA$2/mo	Optional

ajax.googleapis.com

Other

Costly

Execution 389ms

Transfer 33 KB

Monthly Cost CA$5/mo

Unattributable

Other

Optional

Execution 175ms

Transfer 0 KB

Monthly Cost CA$2/mo

ajax.googleapis.com

Other

Optional

Execution 121ms

Transfer 55 KB

Unused 65%

Monthly Cost CA$2/mo

These scripts may cost more than they're worth

ajax.googleapis.com adds 389ms and costs ~CA$5/month

93% 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

ajax.googleapis.com takes 389ms 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

65% of ajax.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.