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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
1
PASS
12
INFO
2

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

Mobile Desktop
74
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
95
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.
100
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.

2.54 s

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

4.68 s

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

160 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.

5.11 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.

4.76 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
12 PASS 1 REVIEW 2 FIX
D
JS Execution Cost
Action
3149ms total JS execution
FIX
3149ms total JS execution
Warning::
Unattributable: 729ms CPU time
Warning::
https://devowl.io/wp-content/litespeed/js/52cc82e4...: 644ms CPU time
Warning::
https://devowl.io/: 579ms CPU time
Warning::
https://devowl.io/wp-includes/js/jquery/jquery.min...: 336ms CPU time
Warning::
https://devowl.io/wp-content/e52cd3656f87ed0ec2978...: 287ms CPU time
Info::
Third-party scripts: 729ms (23% of total)

Main Thread Breakdown

Script Evaluation 39% Other 28% Style & Layout 21% Parse HTML & CSS 6% Script Parsing & Compilation 4%
ScriptTotalScriptingParse/CompileParty
Unattributable729ms26ms0ms3rd
https://devowl.io/wp-content/litespeed/js/52cc82e4c01b4c6ccc20114c5e916bc7.js?ver=1a101644ms347ms22ms1st
https://devowl.io/579ms110ms15ms1st
https://devowl.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1336ms197ms15ms1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1532000191.js?ver=402093d53ee8b8bb287ms272ms4ms1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1452102796.js?ver=4da9deaa8edb67e014c200f7fb07caf2249ms76ms5ms1st
https://devowl.io/wp-content/litespeed/js/4e72420ac61d9bd5d92bb376e0d490c4.js?ver=ff9fe149ms9ms1ms1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1084278183.js?ver=0876fc41201034d0878d5f13f7b839ad93ms81ms6ms1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/864633273.js?ver=52be9ece2c571eef82ms60ms11ms1st
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
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.

C
Image Optimization
Action
17 images, 0 KB saveable
REVIEW
17 images, 0 KB saveable
Warning::
https://devowl.io/wp-content/uploads/logo/real-thu... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/real-cus... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/wp-react... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/real-med... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/real-cat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/real-coo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://devowl.io/wp-content/uploads/logo/real-phy... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
17 images 356 KB
0 oversized -0 KB
13 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

A
Page Weight Budget
802 KB transferred, 62 requests
PASS
802 KB transferred, 62 requests
Info::
Page weighs 1.9 MB (802 KB transferred)
Info::
62 HTTP requests
Info::
Estimated 0.16 g CO2 per page load
802 KB / 2.4 MB budget
802 KB transferred
62 requests
0.16 g CO2 per page load
Images 356.2 KiB 44%
JavaScript 186.7 KiB 23%
Fonts 139.8 KiB 17%
HTML 55.1 KiB 7%
CSS 53.6 KiB 7%
Other 10.1 KiB 1%
Other 835 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
No third-party resources
PASS
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
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+
Font Loading
6 fonts (140 KB)
PASS
6 fonts (140 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

140 KB total

Render-blocking

0

of 6

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 2.5 s LCP 4.7 shttps://devowl.io/wp-content/uploads/font/nunito-sans-normal-400.woff2nunito-sans-normal-400.... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-400.woff2 — 25.7 KiB — 119 ms — font-display: swaphttps://devowl.io/wp-content/uploads/font/nunito-sans-normal-600.woff2nunito-sans-normal-600.... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-600.woff2 — 25.5 KiB — 123 ms — font-display: swaphttps://devowl.io/wp-content/uploads/font/lato-regular.woff2lato-regular.woff2 https://devowl.io/wp-content/uploads/font/lato-regular.woff2 — 29.4 KiB — 126 ms — font-display: swaphttps://devowl.io/wp-content/uploads/font/lato-bold.woff2lato-bold.woff2 https://devowl.io/wp-content/uploads/font/lato-bold.woff2 — 29.6 KiB — 131 ms — font-display: swaphttps://devowl.io/wp-content/uploads/font/nunito-sans-normal-800.woff2nunito-sans-normal-800.... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-800.woff2 — 25.5 KiB — 134 ms — font-display: swaphttps://devowl.io/wp-content/uploads/smile_fonts/devowl-icons/devowl-icons.ttf?tpamwzdevowl-icons.ttf https://devowl.io/wp-content/uploads/smile_fonts/devowl-icons/devowl-icons.ttf?tpamwz — 4.0 KiB — 15 ms — font-display: swap
nunito-sans-normal-400.... woff2 swap
Size 26 KB
Load time 119 ms
Start 83 ms
Risk FOUT — text flashes from fallback to web font
nunito-sans-normal-600.... woff2 swap
Size 26 KB
Load time 123 ms
Start 84 ms
Risk FOUT — text flashes from fallback to web font
lato-regular.woff2 woff2 swap
Size 29 KB
Load time 126 ms
Start 86 ms
Risk FOUT — text flashes from fallback to web font
lato-bold.woff2 woff2 swap
Size 30 KB
Load time 131 ms
Start 86 ms
Risk FOUT — text flashes from fallback to web font
nunito-sans-normal-800.... woff2 swap
Size 25 KB
Load time 134 ms
Start 86 ms
Risk FOUT — text flashes from fallback to web font
devowl-icons.ttf ttf swap
Size 4 KB
Load time 15 ms
Start 416 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~1 KB and ~2 ms

A+
JS Bundles
25 scripts, 23 KB unused
PASS
25 scripts, 23 KB unused
Warning::
https://devowl.io/wp-content/litespeed/js/52cc82e4...: 23 KB unused (67%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 23 KB
23 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://devowl.io/wp-content/litespeed/js/52cc82e4c01b4c6ccc20114c5e916bc7.js?ver=1a10134 KB23 KB (67%)✓1st
https://devowl.io/wp-content/litespeed/js/3d95f12f5ae29ad830ac3668087f2463.js?ver=1176b5 KB—✓1st
data:text/javascript;base64,IWZ1bmN0aW9uKGEpeyJ1c2Ugc3RyaWN0Ijt2YXIgYj1mdW5jdGlvbihiLGMsZCl7ZnVuY3R…0 KB—✓3rd
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1532000191.js?ver=402093d53ee8b8bb9 KB—✓1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/239330335.js?ver=2ebddcad2dda126817 KB—✓1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1485313411.js?ver=ac7a5a6e07f1d9683ba42c5f650783d312 KB—✓1st
https://devowl.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.129 KB—✓1st
https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1452102796.js?ver=4da9deaa8edb67e014c200f7fb07caf210 KB—✓1st
https://devowl.io/wp-content/litespeed/js/3af33d2267d7b4108f4209884fa60567.js?ver=1323d1 KB—✓1st
https://devowl.io/wp-content/litespeed/js/ce441da72eaefe6eb1a89cfee0a2de1e.js?ver=272821 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

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
15 hints, 0 missing preconnects
PASS
15 hints, 0 missing preconnects
Info::
Page uses 15 resource hint(s)

Current Resource Hints

preconnect
—
preload
+5
15
dns-prefetch
—
prefetch
—

15 resource hints configured

A+
Page Weight Inventory
62 resources · 802 KB · 23 KB savings available
PASS
62 resources · 802 KB · 23 KB savings available
Info::
Within 1MB page-weight target
Got: 802 KB
Info::
8 third-party resources (0% of weight)
62 resources · 802.2 KiB · 8 third-party Within 1MB page-weight target
Image 46% · 366.3 KiB
JavaScript 23% · 186.7 KiB
Font 17% · 139.8 KiB
Document 7% · 55.1 KiB
CSS 7% · 53.6 KiB
Other 0% · 835 B

~22.6 KiB of savings available

Remove unused JavaScript: 22.6 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: Cloudflare

Network Waterfall
62 requests over 1849ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 2.5 s LCP 4.7 shttps://devowl.io// https://devowl.io/ — 200 — 55.1 KiB — 69 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1452102796.js?ver=4da9deaa8edb67e014c200f7fb07caf2/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1452102796.js?ver=4da9deaa8edb67e014c200f7fb07caf2 — 200 — 10.5 KiB — 91 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/864633273.js?ver=52be9ece2c571eef/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/864633273.js?ver=52be9ece2c571eef — 200 — 22.9 KiB — 105 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1084278183.js?ver=0876fc41201034d0878d5f13f7b839ad/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1084278183.js?ver=0876fc41201034d0878d5f13f7b839ad — 200 — 15.3 KiB — 99 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1532000191.js?ver=402093d53ee8b8bb/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1532000191.js?ver=402093d53ee8b8bb — 200 — 9.4 KiB — 105 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/239330335.js?ver=2ebddcad2dda1268/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/239330335.js?ver=2ebddcad2dda1268 — 200 — 17.1 KiB — 108 ms — h2https://devowl.io/wp-content/plugins/real-cookie-banner-pro/public/lib/animate.css/animate.min.css?ver=4.1.1/wp-content/plugins/real-cookie-ban... https://devowl.io/wp-content/plugins/real-cookie-banner-pro/public/lib/animate.css/animate.min.css?ver=4.1.1 — 200 — 5.0 KiB — 44 ms — h2https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1485313411.js?ver=ac7a5a6e07f1d9683ba42c5f650783d3/wp-content/e52cd3656f87ed0ec29783e... https://devowl.io/wp-content/e52cd3656f87ed0ec29783e36921eb97/dist/1485313411.js?ver=ac7a5a6e07f1d9683ba42c5f650783d3 — 200 — 11.5 KiB — 113 ms — h2https://devowl.io/wp-content/uploads/font/nunito-sans-normal-400.woff2/wp-content/uploads/font/nunito-san... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-400.woff2 — 200 — 25.7 KiB — 119 ms — h2https://devowl.io/wp-content/uploads/font/nunito-sans-normal-600.woff2/wp-content/uploads/font/nunito-san... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-600.woff2 — 200 — 25.5 KiB — 123 ms — h2https://devowl.io/wp-content/uploads/font/lato-regular.woff2/wp-content/uploads/font/lato-regul... https://devowl.io/wp-content/uploads/font/lato-regular.woff2 — 200 — 29.4 KiB — 126 ms — h2https://devowl.io/wp-content/uploads/font/lato-bold.woff2/wp-content/uploads/font/lato-bold.... https://devowl.io/wp-content/uploads/font/lato-bold.woff2 — 200 — 29.6 KiB — 131 ms — h2https://devowl.io/wp-content/uploads/font/nunito-sans-normal-800.woff2/wp-content/uploads/font/nunito-san... https://devowl.io/wp-content/uploads/font/nunito-sans-normal-800.woff2 — 200 — 25.5 KiB — 134 ms — h2https://devowl.io/wp-content/litespeed/css/b41558b12ed5c6fa61c95ec82400b480.css?ver=46b73/wp-content/litespeed/css/b41558b12... https://devowl.io/wp-content/litespeed/css/b41558b12ed5c6fa61c95ec82400b480.css?ver=46b73 — 200 — 1015 B — 33 ms — h2https://devowl.io/wp-content/litespeed/css/fcb033598ce5f79c924c2418abca8a74.css?ver=6aeb9/wp-content/litespeed/css/fcb033598... https://devowl.io/wp-content/litespeed/css/fcb033598ce5f79c924c2418abca8a74.css?ver=6aeb9 — 200 — 33.0 KiB — 90 ms — h2https://devowl.io/wp-content/litespeed/css/8db463cedb284ca6ace76a1be3026d41.css?ver=d0fc6/wp-content/litespeed/css/8db463ced... https://devowl.io/wp-content/litespeed/css/8db463cedb284ca6ace76a1be3026d41.css?ver=d0fc6 — 200 — 304 B — 65 ms — h2https://devowl.io/wp-content/litespeed/css/0c1852e2ef0994c5610738a558617723.css?ver=9e734/wp-content/litespeed/css/0c1852e2e... https://devowl.io/wp-content/litespeed/css/0c1852e2ef0994c5610738a558617723.css?ver=9e734 — 200 — 4.7 KiB — 68 ms — h2https://devowl.io/wp-content/litespeed/css/ebfddb54b52690fc430f878ad84c88c4.css?ver=9761b/wp-content/litespeed/css/ebfddb54b... https://devowl.io/wp-content/litespeed/css/ebfddb54b52690fc430f878ad84c88c4.css?ver=9761b — 200 — 660 B — 55 ms — h2https://devowl.io/wp-content/litespeed/css/cdf240549e192f129275b5a3b7c1197a.css?ver=88e4c/wp-content/litespeed/css/cdf240549... https://devowl.io/wp-content/litespeed/css/cdf240549e192f129275b5a3b7c1197a.css?ver=88e4c — 200 — 2.8 KiB — 61 ms — h2https://devowl.io/wp-content/litespeed/css/229240400a9eebb636c1e97e380cc950.css?ver=b9e17/wp-content/litespeed/css/229240400... https://devowl.io/wp-content/litespeed/css/229240400a9eebb636c1e97e380cc950.css?ver=b9e17 — 200 — 5.5 KiB — 78 ms — h2https://devowl.io/wp-content/litespeed/css/aa0ea72bb2212e5cfeac16e36c235076.css?ver=f5e88/wp-content/litespeed/css/aa0ea72bb... https://devowl.io/wp-content/litespeed/css/aa0ea72bb2212e5cfeac16e36c235076.css?ver=f5e88 — 200 — 718 B — 71 ms — h2https://devowl.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1/wp-includes/js/jquery/jquery.min.j... https://devowl.io/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 29.3 KiB — 137 ms — h2https://devowl.io/wp-content/uploads/logo/main-menu/real-cookie-banner.svg/wp-content/uploads/logo/main-menu/... https://devowl.io/wp-content/uploads/logo/main-menu/real-cookie-banner.svg — 200 — 112.1 KiB — 142 ms — h2https://devowl.io/wp-content/uploads/logo/main-menu/real-media-library.svg/wp-content/uploads/logo/main-menu/... https://devowl.io/wp-content/uploads/logo/main-menu/real-media-library.svg — 200 — 2.8 KiB — 132 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
23% of JavaScript execution is third-party
First-party Third-party 729ms · 0KB · €10/mo
Unattributable
Other
Costly
Execution 729ms
Transfer 0 KB
Monthly Cost €10/mo

These scripts may cost more than they're worth

  • Unattributable adds 729ms and costs ~€10/month

Unattributable takes 729ms 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

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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