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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
74
GRADE
C
FIX
3
REVIEW
4
PASS
6
INFO
2

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

Mobile Desktop
91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
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.
85
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.

1.14 s

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

1.38 s

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

48 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.023

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

1.75 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.

3.13 s

Page Load Progression

627 ms
1.3 s
1.9 s
2.5 s
3.1 s
3.8 s
4.4 s
5.0 s
Checks
15
6 PASS 4 REVIEW 3 FIX
F
Page Weight Budget
Action
2.9 MB transferred, 105 requests
FIX
2.9 MB transferred, 105 requests
Warning::
Page weighs 4.9 MB (2.9 MB transferred)
Warning::
Images are 2.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.0 MB
Warning::
JavaScript is 776 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 776 KB
Warning::
105 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.61 g CO2 per page load
2.9 MB / 2.4 MB budget
2.9 MB transferred
105 requests
0.61 g CO2 per page load
Images 2.0 MiB 69%
JavaScript 775.6 KiB 26%
Fonts 52.7 KiB 2%
HTML 51.5 KiB 2%
CSS 40.2 KiB 1%
Other 4.0 KiB 0%
Other 1.0 KiB 0%
Other 1.0 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

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 (2.9 MiB of 2.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
105 resources · 2.9 MB · 259 KB savings available
FIX
105 resources · 2.9 MB · 259 KB savings available
Warning::
Page weight 1.9 MB over 1MB target
Got: 2.9 MB Expected: ≤ 1 MB
Info::
~259 KB of savings available
Warning::
104 third-party resources (100% of weight)
Info::
6 resources over 200KB
105 resources · 2.9 MiB · 104 third-party 1.9 MiB over 1MB target
Image 69% · 2.0 MiB
JavaScript 26% · 775.6 KiB
Font 2% · 52.7 KiB
Document 2% · 51.7 KiB
CSS 1% · 40.2 KiB
Other 0% · 5.0 KiB

~258.6 KiB of savings available

Remove unused JavaScript: 258.6 KiB
C
Image Optimization
Action
46 images, 0 KB saveable
REVIEW
46 images, 0 KB saveable
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/03... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/04... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.percona.com/wp-content/uploads/2026/02... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
46 images 2.0 MB
0 oversized -0 KB
39 legacy format
33 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

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

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

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

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

C
JS Execution Cost
Action
1849ms total JS execution
REVIEW
1849ms total JS execution
Warning::
https://www.percona.com/: 496ms CPU time
Warning::
Unattributable: 364ms CPU time
Warning::
https://cmp.osano.com/Azqe5vTyLOSbN3OuT/49ad85b5-0...: 255ms CPU time
Info::
https://js.hs-analytics.net/analytics/177689820000...: 199ms CPU time
Info::
https://unpkg.com/gsap@3.12.2/dist/ScrollTrigger.m...: 189ms CPU time
Warning::
Third-party scripts: 1849ms (100% of total)

Main Thread Breakdown

Script Evaluation 46% Other 24% Style & Layout 20% Script Parsing & Compilation 4% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.percona.com/496ms164ms9ms3rd
Unattributable364ms33ms0ms3rd
https://cmp.osano.com/Azqe5vTyLOSbN3OuT/49ad85b5-0418-4794-ab81-7599dddd534c/osano.js255ms225ms4ms3rd
https://js.hs-analytics.net/analytics/1776898200000/758664.js199ms112ms4ms3rd
https://unpkg.com/gsap@3.12.2/dist/ScrollTrigger.min.js189ms33ms1ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WBVF48V159ms138ms15ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-95203777071ms61ms10ms3rd
https://www.percona.com/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/awesome-menu@1/awesome-menu.js?bd_ver=2.6.162ms6ms8ms3rd
https://unpkg.com/gsap@3.12.2/dist/gsap.min.js55ms13ms2ms3rd
C
JS Bundles
Action
26 scripts, 259 KB unused
REVIEW
26 scripts, 259 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-952...: 106 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-WBV...: 66 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-952...: 66 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.percona.com/wp-includes/js/jquery/jque...: 21 KB unused (69%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 259 KB
259 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=AW-952037770&cx=c&gtm=4e64m0h2144 KB106 KB (73%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-WBVF48V170 KB66 KB (39%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-952037770145 KB66 KB (46%)✓3rd
https://www.percona.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.130 KB21 KB (69%)✓3rd
https://www.percona.com/wp-content/plugins/breakdance/plugin/animations/scrolling/js/blur-plugin.js?bd_ver=2.6.11 KB—✓3rd
https://cmp.osano.com/Azqe5vTyLOSbN3OuT/49ad85b5-0418-4794-ab81-7599dddd534c/osano-ui.js31 KB—✓3rd
https://www.percona.com/wp-content/plugins/breakdance/plugin/global-scripts/breakdance-utils.js?bd_ver=2.6.12 KB—✓3rd
https://www.percona.com/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/awesome-menu@1/awesome-menu.js?bd_ver=2.6.117 KB—✓3rd
https://www.percona.com/wp-content/plugins/breakdance/subplugins/breakdance-elements/dependencies-files/breakdance-advanced-accordion/breakdance-advanced-accordion.js?bd_ver=2.6.12 KB—✓3rd
https://unpkg.com/gsap@3.12.2/dist/gsap.min.js28 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

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

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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
4 fonts (53 KB)
PASS
4 fonts (53 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

53 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 1.1 s LCP 1.4 shttps://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLGT9Z1x... https://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLGT9Z1xlFd2JQEk.woff2 — 7.7 KiB — 21 ms — font-display: swaphttps://www.percona.com/wp-content/uploads/breakdance/fonts/ArdelaEdgeX01_Bold.woffArdelaEdgeX01_Bold.woff https://www.percona.com/wp-content/uploads/breakdance/fonts/ArdelaEdgeX01_Bold.woff — 29.4 KiB — 18 ms — font-display: swaphttps://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2pxiEyp8kv8JHgFVrJJfecnF... https://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiEyp8kv8JHgFVrJJfecnFHGPc.woff2 — 7.9 KiB — 25 ms — font-display: swaphttps://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2pxiByp8kv8JHgFVrLDz8Z1x... https://www.percona.com/fonts.gstatic.com/s/poppins/v24/pxiByp8kv8JHgFVrLDz8Z1xlFd2JQEk.woff2 — 7.8 KiB — 22 ms — font-display: swap
pxiByp8kv8JHgFVrLGT9Z1x... woff2 swap
Size 8 KB
Load time 21 ms
Start 692 ms
Risk FOUT — text flashes from fallback to web font
ArdelaEdgeX01_Bold.woff woff swap
Size 29 KB
Load time 18 ms
Start 692 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
pxiEyp8kv8JHgFVrJJfecnF... woff2 swap
Size 8 KB
Load time 25 ms
Start 692 ms
Risk FOUT — text flashes from fallback to web font
pxiByp8kv8JHgFVrLDz8Z1x... woff2 swap
Size 8 KB
Load time 22 ms
Start 693 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)

Fixing the unchecked items could save ~9 KB and ~18 ms

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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
HTTP Caching
max-age=3600 (1 hour)
PASS
max-age=3600 (1 hour)
Info::
Cache-Control header is set
Got: max-age=3600
Info::
Effective TTL: 1 hour (max-age=3600)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=3600

DirectiveValueMeaning
max-age3600Cache for 1 hour
Effective TTL: 3600 seconds
Network Waterfall
105 requests over 2702ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.1 s LCP 1.4 shttps://percona.com// https://percona.com/ — 301 — 216 B — 239 ms — h2https://www.percona.com/www.percona.com/ https://www.percona.com/ — 200 — 50.4 KiB — 60 ms — h2https://www.percona.com/wp-content/themes/percona/public/build/assets/app-QuDGk8cc.csswww.percona.com/wp-content/themes/p... https://www.percona.com/wp-content/themes/percona/public/build/assets/app-QuDGk8cc.css — 200 — 3.4 KiB — 39 ms — h2https://www.percona.com/wp-content/themes/percona/public/build/assets/app-AFPN3Zsa.jswww.percona.com/wp-content/themes/p... https://www.percona.com/wp-content/themes/percona/public/build/assets/app-AFPN3Zsa.js — 200 — 12.9 KiB — 90 ms — h2https://www.percona.com/wp-content/plugins/urvanov-syntax-highlighter/css/min/urvanov_syntax_highlighter.min.css?ver=2.9.0www.percona.com/wp-content/plugins/... https://www.percona.com/wp-content/plugins/urvanov-syntax-highlighter/css/min/urvanov_syntax_highlighter.min.css?ver=2.9.0 — 200 — 4.3 KiB — 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https://pagead2.googlesyndication.com/ccm/collect?rcb=7&frm=0&en=page_view&dl=https%3A%2F%2Fwww.percona.com%2F&scrsrc=www.googletagmanager.com&rnd=1822639122.1776898385&navt=n&npa=1&us_privacy=1-N-&did=dZTQ1Zm&gdid=dZTQ1Zm&_tu=CA&gtm=45be64k1v882337914za200zb812793052zd812793052xec&gcs=G100&gcd=13p3p3p3p5l1&dma_cps=-&dma=0&tag_exp=0~115616986~115938465~115938469~117266400&apve=1&apvf=f&apvc=0&tids=AW-952037770&tid=AW-952037770&tft=1776898385476&tfd=2678 — 200 — 21 B — 23 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 1849ms · 515KB · €20/mo
www.percona.com
Other
Costly
Execution 496ms
Transfer 50 KB
Monthly Cost €5/mo
Unattributable
Other
Costly
Execution 364ms
Transfer 0 KB
Monthly Cost €4/mo
cmp.osano.com
Other
Costly
Execution 255ms
Transfer 44 KB
Monthly Cost €3/mo
HubSpot Analytics
Analytics
Optional
Execution 199ms
Transfer 43 KB
Monthly Cost €2/mo
unpkg
CDN
Optional
Execution 189ms
Transfer 17 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 159ms
Transfer 170 KB
Unused 39%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 71ms
Transfer 145 KB
Unused 46%
Monthly Cost €1/mo
www.percona.com
Other
Optional
Execution 62ms
Transfer 17 KB
Monthly Cost €1/mo
unpkg
CDN
Optional
Execution 55ms
Transfer 28 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • www.percona.com adds 496ms and costs ~€5/month
  • Unattributable adds 364ms and costs ~€4/month
  • cmp.osano.com adds 255ms and costs ~€3/month

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

www.percona.com takes 496ms 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

Unattributable takes 364ms 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

cmp.osano.com takes 255ms 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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