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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
2
REVIEW
2
PASS
9
INFO
2

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

Mobile Desktop
92
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
94
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.
91
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.

934 ms

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

966 ms

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.

0.000

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

2.53 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.

967 ms

Page Load Progression

762 ms
1.5 s
2.3 s
3.0 s
3.8 s
4.6 s
5.3 s
6.1 s
Checks
15
9 PASS 2 REVIEW 2 FIX
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 (250.4 KiB of 250.7 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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.

B
JS Bundles
10 scripts, 121 KB unused
REVIEW
10 scripts, 121 KB unused
Warning::
https://www.diva-portal.org/smash/javax.faces.reso...: 66 KB unused (93%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.diva-portal.org/smash/javax.faces.reso...: 55 KB unused (86%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 121 KB
121 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.diva-portal.org/smash/javax.faces.resource/primefaces.js.jsf?ln=primefaces&v=5.2.771 KB66 KB (93%)✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery-plugins.js.jsf?ln=primefaces&v=5.2.764 KB55 KB (86%)✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/windowhandler.js.jsf?ln=deltaspike&v=1.9.43 KB—✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/jsf.js.jsf?ln=javax.faces12 KB—✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery.js.jsf?ln=primefaces&v=5.2.737 KB—✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/primefaces-extensions.js.jsf?ln=primefaces-extensions&v=3.2.06 KB—✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/blockui/blockui.js.jsf?ln=primefaces-extensions&v=3.2.04 KB—✓3rd
https://www.diva-portal.org/smash/javax.faces.resource/idlemonitor/idlemonitor.js.jsf?ln=primefaces&v=5.2.72 KB—✓3rd
https://www.diva-portal.org/smash/resources/js/navigation.js2 KB—✓3rd
https://www.diva-portal.org/smash/resources/js/default.js1 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

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

Green Hosting

No green hosting detected

A+
Page Weight Budget
251 KB transferred, 26 requests
PASS
251 KB transferred, 26 requests
Info::
Page weighs 950 KB (251 KB transferred)
Info::
26 HTTP requests
Info::
Estimated 0.05 g CO2 per page load
251 KB / 2.4 MB budget
251 KB transferred
26 requests
0.05 g CO2 per page load
JavaScript 202.0 KiB 81%
CSS 34.6 KiB 14%
HTML 6.4 KiB 3%
Images 5.4 KiB 2%
Other 2.2 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
Info::
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 5 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
51ms total JS execution
PASS
51ms total JS execution
Info::
Unattributable: 51ms CPU time
Warning::
Third-party scripts: 51ms (100% of total)

Main Thread Breakdown

Other 36% Script Evaluation 26% Script Parsing & Compilation 17% Style & Layout 14% Parse HTML & CSS 7%
ScriptTotalScriptingParse/CompileParty
Unattributable51ms2ms0ms3rd
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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
Page Weight Inventory
26 resources · 251 KB · 121 KB savings available
PASS
26 resources · 251 KB · 121 KB savings available
Info::
Within 1MB page-weight target
Got: 251 KB
Info::
~121 KB of savings available
Warning::
25 third-party resources (100% of weight)
26 resources · 250.7 KiB · 25 third-party Within 1MB page-weight target
JavaScript 81% · 202.0 KiB
CSS 14% · 34.6 KiB
Image 3% · 6.9 KiB
Document 3% · 6.7 KiB
Other 0% · 441 B

~121.0 KiB of savings available

Remove unused JavaScript: 121.0 KiB
Network Waterfall
26 requests over 3982ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 934 ms LCP 966 mshttps://diva-portal.org// https://diva-portal.org/ — 302 — 260 B — 803 ms — http/1.1https://www.diva-portal.org/smash/www.diva-portal.org/smash/ https://www.diva-portal.org/smash/ — 302 — 441 B — 811 ms — http/1.1https://www.diva-portal.org/smash/search.jsf?dswid=-7822www.diva-portal.org/smash/search.js... https://www.diva-portal.org/smash/search.jsf?dswid=-7822 — 200 — 6.4 KiB — 528 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/theme.css.jsf?ln=primefaces-casablancawww.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/theme.css.jsf?ln=primefaces-casablanca — 200 — 3.4 KiB — 232 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/fa/font-awesome.css.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/fa/font-awesome.css.jsf?ln=primefaces&v=5.2.7 — 200 — 6.0 KiB — 474 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/windowhandler.js.jsf?ln=deltaspike&v=1.9.4www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/windowhandler.js.jsf?ln=deltaspike&v=1.9.4 — 200 — 3.2 KiB — 688 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/jsf.js.jsf?ln=javax.faceswww.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/jsf.js.jsf?ln=javax.faces — 200 — 11.6 KiB — 888 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/primefaces.css.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/primefaces.css.jsf?ln=primefaces&v=5.2.7 — 200 — 12.5 KiB — 702 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery.js.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery.js.jsf?ln=primefaces&v=5.2.7 — 200 — 36.7 KiB — 1.1 s — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery-plugins.js.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/jquery/jquery-plugins.js.jsf?ln=primefaces&v=5.2.7 — 200 — 64.5 KiB — 1.3 s — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/primefaces.js.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/primefaces.js.jsf?ln=primefaces&v=5.2.7 — 200 — 71.2 KiB — 1.2 s — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/primefaces-extensions.js.jsf?ln=primefaces-extensions&v=3.2.0www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/primefaces-extensions.js.jsf?ln=primefaces-extensions&v=3.2.0 — 200 — 6.4 KiB — 918 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/blockui/blockui.css.jsf?ln=primefaces-extensions&v=3.2.0www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/blockui/blockui.css.jsf?ln=primefaces-extensions&v=3.2.0 — 200 — 597 B — 621 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/blockui/blockui.js.jsf?ln=primefaces-extensions&v=3.2.0www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/blockui/blockui.js.jsf?ln=primefaces-extensions&v=3.2.0 — 200 — 4.5 KiB — 910 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/idlemonitor/idlemonitor.js.jsf?ln=primefaces&v=5.2.7www.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/idlemonitor/idlemonitor.js.jsf?ln=primefaces&v=5.2.7 — 200 — 1.5 KiB — 1.1 s — http/1.1https://www.diva-portal.org/smash/resources/js/navigation.jswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/js/navigation.js — 200 — 1.7 KiB — 1.1 s — http/1.1https://www.diva-portal.org/smash/resources/js/default.jswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/js/default.js — 200 — 811 B — 1.1 s — http/1.1https://www.diva-portal.org/smash/resources/css/default-2.34.0.csswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/css/default-2.34.0.css — 200 — 9.1 KiB — 641 ms — http/1.1https://www.diva-portal.org/smash/resources/css/statistics.csswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/css/statistics.css — 200 — 871 B — 621 ms — http/1.1https://www.diva-portal.org/smash/resources/css/diva.csswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/css/diva.css — 200 — 1.4 KiB — 628 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/ajax-loader1.gif.jsf?ln=imageswww.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/ajax-loader1.gif.jsf?ln=images — 200 — 2.9 KiB — 212 ms — http/1.1https://www.diva-portal.org/smash/resources/css/print.csswww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/css/print.css — 200 — 829 B — 214 ms — http/1.1https://www.diva-portal.org/smash/resources/images/head_logo.gifwww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/images/head_logo.gif — 200 — 1.1 KiB — 209 ms — http/1.1https://www.diva-portal.org/smash/javax.faces.resource/images/default.png.jsf?ln=primefaces-casablancawww.diva-portal.org/smash/javax.fac... https://www.diva-portal.org/smash/javax.faces.resource/images/default.png.jsf?ln=primefaces-casablanca — 200 — 1.3 KiB — 211 ms — http/1.1https://www.diva-portal.org/smash/resources/images/diva/favicon.pngwww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/images/diva/favicon.png — 200 — 1.5 KiB — 208 ms — http/1.1https://www.diva-portal.org/smash/resources/images/diva/favicon.pngwww.diva-portal.org/smash/resources... https://www.diva-portal.org/smash/resources/images/diva/favicon.png — 200 — 0 B — 2 ms — http/1.1
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 51ms · 0KB · kr6/mo
Unattributable
Other
Optional
Execution 51ms
Transfer 0 KB
Monthly Cost kr6/mo

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

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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