Skip to content
https://monash.edu

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
2
PASS
11
INFO
2

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

Mobile Desktop
65
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
40
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.

955 ms

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

2.90 s

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

13.80 s

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

0.003

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

1.22 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.

19.46 s

Page Load Progression

573 ms
1.1 s
1.7 s
2.3 s
2.9 s
3.4 s
4.0 s
4.6 s
Checks
17
11 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
80% third-party, 0 ms blocking
FIX
80% third-party, 0 ms blocking
Warning::
Third-party code accounts for 80% of page weight (414.0 KiB of 514.8 KiB)
Info::
Third-party blocking time is low (0 ms)
20%
80%
First-party Third-party
F
JS Execution Cost
Action
18772ms total JS execution
FIX
18772ms total JS execution
Warning::
https://monash.edu/cdn-cgi/challenge-platform/h/b/...: 17800ms CPU time
Warning::
Unattributable: 697ms CPU time
Info::
https://monash.edu/: 149ms CPU time
Info::
https://challenges.cloudflare.com/turnstile/v0/b/0...: 126ms CPU time
Info::
Third-party scripts: 823ms (4% of total)

Main Thread Breakdown

Script Evaluation 95% Other 3%
ScriptTotalScriptingParse/CompileParty
https://monash.edu/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9effffc28c06e75417800ms17558ms33ms1st
Unattributable697ms179ms0ms3rd
https://monash.edu/149ms23ms4ms1st
https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit126ms82ms13ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
private, max-age=0
REVIEW
private, max-age=0
Info::
Cache-Control header is set
Got: private, max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, max-age=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
max-age0Cache for 0 seconds
A+
Page Weight Budget
515 KB transferred, 19 requests
PASS
515 KB transferred, 19 requests
Info::
Page weighs 910 KB (515 KB transferred)
Info::
19 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
515 KB / 2.4 MB budget
515 KB transferred
19 requests
0.11 g CO2 per page load
Other 308.4 KiB 60%
HTML 100.0 KiB 19%
JavaScript 85.0 KiB 17%
Images 13.3 KiB 3%
Other 6.4 KiB 1%
Other 1.7 KiB 0%
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 13 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
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+
JS Bundles
8 scripts, 0 KB unused
PASS
8 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://monash.edu/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9effffc28c06e75468 KB—✓1st
blob:https://monash.edu/1854cb3b-78f8-41f0-b9c8-c4896d35e4550 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit17 KB—✓3rd
blob:https://monash.edu/b3e5f378-21cd-42ea-9d72-f5c37c54a836-0 KB—✓3rd
blob:https://challenges.cloudflare.com/a4d75c6d-b473-490c-8e00-817ca826f3ff0 KB—✓3rd
blob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720-0 KB—✓3rd
blob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720-0 KB—✓3rd
blob:https://challenges.cloudflare.com/2e5e94d2-723f-474e-8fcc-c12aeafe8dfb-0 KB—✓3rd
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
19 resources · 515 KB · 0 KB savings available
PASS
19 resources · 515 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 515 KB
Warning::
13 third-party resources (80% of weight)
Info::
1 resources over 200KB
19 resources · 514.8 KiB · 13 third-party Within 1MB page-weight target
Other 60% · 310.1 KiB
Document 21% · 106.3 KiB
JavaScript 17% · 85.0 KiB
Image 3% · 13.3 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
Network Waterfall
19 requests over 4168ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 955 ms LCP 2.9 shttps://monash.edu// https://monash.edu/ — 307 — 60 B — 37 ms — http/1.1https://monash.edu// https://monash.edu/ — 403 — 5.4 KiB — 17 ms — h2https://monash.edu/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9effffc28c06e754/cdn-cgi/challenge-platform/h/b/orc... https://monash.edu/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9effffc28c06e754 — 200 — 67.7 KiB — 20 ms — h2blob:https://monash.edu/1854cb3b-78f8-41f0-b9c8-c4896d35e455monash.edu/1854cb3b-78f8-41f0-b9c8-... blob:https://monash.edu/1854cb3b-78f8-41f0-b9c8-c4896d35e455 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicitchallenges.cloudflare.com/turnstile... https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit — 200 — 17.3 KiB — 20 ms — h3https://monash.edu/favicon.ico/favicon.ico https://monash.edu/favicon.ico — 403 — 7.8 KiB — 23 ms — h2https://monash.edu/favicon.ico/favicon.ico https://monash.edu/favicon.ico — 403 — 6.4 KiB — 20 ms — h2https://monash.edu/cdn-cgi/challenge-platform/h/b/flow/ov1/3594160270:1776809553:LF-d7ov4rwlPFiaU1cNWhn-u54a_SCI9x1hbvxf-iHs/9effffc28c06e754/SswNYjBGUDCMD_JpX8bt5PtCxqVsoJVLN8zdTvtL5ak-1776812365-1.2.1.1-he6weRGDmfLXlSjZWVC0aax47dC00vbqW3w8ZNtNtJcCz6khyz4HZiLHEHvOQdqe/cdn-cgi/challenge-platform/h/b/flo... https://monash.edu/cdn-cgi/challenge-platform/h/b/flow/ov1/3594160270:1776809553:LF-d7ov4rwlPFiaU1cNWhn-u54a_SCI9x1hbvxf-iHs/9effffc28c06e754/SswNYjBGUDCMD_JpX8bt5PtCxqVsoJVLN8zdTvtL5ak-1776812365-1.2.1.1-he6weRGDmfLXlSjZWVC0aax47dC00vbqW3w8ZNtNtJcCz6khyz4HZiLHEHvOQdqe — 200 — 13.5 KiB — 34 ms — h2blob:https://monash.edu/b3e5f378-21cd-42ea-9d72-f5c37c54a836monash.edu/b3e5f378-21cd-42ea-9d72-... blob:https://monash.edu/b3e5f378-21cd-42ea-9d72-f5c37c54a836 — 200 — -1 B — 40 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/7cij5/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=autochallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/7cij5/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 94.6 KiB — 24 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/cmg/1challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/cmg/1 — 200 — 208 B — 6 ms — h3blob:https://challenges.cloudflare.com/a4d75c6d-b473-490c-8e00-817ca826f3ffchallenges.cloudflare.com/a4d75c6d-... blob:https://challenges.cloudflare.com/a4d75c6d-b473-490c-8e00-817ca826f3ff — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1072627103:1776809555:BmIdi2STVtUVd1U8czSCHAzL_O0c577w2Xdp6OQL8uQ/9effffc56ac2fb8f/K7DHQVxDzYGxziyXbihiqUYDHwMVpcyNATOVItil9Yo-1776812365-1.2.1.1-NOD3n4j6bm9iAvkb_.8JSE2XxuyH6EHw6w9Xb0cqn_yTftKbpDEyGRJ0UG93OL0uchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1072627103:1776809555:BmIdi2STVtUVd1U8czSCHAzL_O0c577w2Xdp6OQL8uQ/9effffc56ac2fb8f/K7DHQVxDzYGxziyXbihiqUYDHwMVpcyNATOVItil9Yo-1776812365-1.2.1.1-NOD3n4j6bm9iAvkb_.8JSE2XxuyH6EHw6w9Xb0cqn_yTftKbpDEyGRJ0UG93OL0u — 200 — 272.2 KiB — 90 ms — h3blob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720challenges.cloudflare.com/57b2b332-... blob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720 — 200 — -1 B — 137 ms — blobblob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720challenges.cloudflare.com/57b2b332-... blob:https://challenges.cloudflare.com/57b2b332-835e-4e6c-9c06-28b0068c0720 — 200 — -1 B — 19 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9effffc56ac2fb8f/1776812366082/b2aiQGkgLfjn4Ekchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9effffc56ac2fb8f/1776812366082/b2aiQGkgLfjn4Ek — 200 — 5.3 KiB — 9 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9effffc56ac2fb8f/1776812366082/8a5e266406e41d990459265d999297efd4529489ccf0cad517ddfcdf3b6af843/BGEt4xK1V7p_8jRchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9effffc56ac2fb8f/1776812366082/8a5e266406e41d990459265d999297efd4529489ccf0cad517ddfcdf3b6af843/BGEt4xK1V7p_8jR — 401 — 1.7 KiB — 6 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1072627103:1776809555:BmIdi2STVtUVd1U8czSCHAzL_O0c577w2Xdp6OQL8uQ/9effffc56ac2fb8f/K7DHQVxDzYGxziyXbihiqUYDHwMVpcyNATOVItil9Yo-1776812365-1.2.1.1-NOD3n4j6bm9iAvkb_.8JSE2XxuyH6EHw6w9Xb0cqn_yTftKbpDEyGRJ0UG93OL0uchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/1072627103:1776809555:BmIdi2STVtUVd1U8czSCHAzL_O0c577w2Xdp6OQL8uQ/9effffc56ac2fb8f/K7DHQVxDzYGxziyXbihiqUYDHwMVpcyNATOVItil9Yo-1776812365-1.2.1.1-NOD3n4j6bm9iAvkb_.8JSE2XxuyH6EHw6w9Xb0cqn_yTftKbpDEyGRJ0UG93OL0u — 200 — 22.7 KiB — 26 ms — h3blob:https://challenges.cloudflare.com/2e5e94d2-723f-474e-8fcc-c12aeafe8dfbchallenges.cloudflare.com/2e5e94d2-... blob:https://challenges.cloudflare.com/2e5e94d2-723f-474e-8fcc-c12aeafe8dfb — 200 — -1 B — 30 ms — blob
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
4% of JavaScript execution is third-party
First-party Third-party 823ms · 17KB · A$14/mo
Unattributable
Other
Costly
Execution 697ms
Transfer 0 KB
Monthly Cost A$12/mo
challenges.cloudflare.com
Other
Optional
Execution 126ms
Transfer 17 KB
Monthly Cost A$2/mo

These scripts may cost more than they're worth

  • Unattributable adds 697ms and costs ~A$12/month

Unattributable takes 697ms 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.

Send Feedback