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https://rd.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
3
REVIEW
0
PASS
10
INFO
2

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

Mobile Desktop
73
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.
45
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.

486 ms

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

1.04 s

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

669 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.

595 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.10 s

Page Load Progression

681 ms
1.4 s
2.0 s
2.7 s
3.4 s
4.1 s
4.8 s
5.4 s
Checks
15
10 PASS 3 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 (503.7 KiB of 503.9 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Execution Cost
Action
4679ms total JS execution
FIX
4679ms total JS execution
Warning::
https://www.rd.com/cdn-cgi/challenge-platform/h/b/...: 4495ms CPU time
Info::
Unattributable: 184ms CPU time
Warning::
Third-party scripts: 4679ms (100% of total)

Main Thread Breakdown

Script Evaluation 94% Other 4%
ScriptTotalScriptingParse/CompileParty
https://www.rd.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9eff83e5ede71cca4495ms4418ms10ms3rd
Unattributable184ms46ms0ms3rd
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.

A+
Page Weight Budget
504 KB transferred, 21 requests
PASS
504 KB transferred, 21 requests
Info::
Page weighs 943 KB (504 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.10 g CO2 per page load
504 KB / 2.4 MB budget
504 KB transferred
21 requests
0.10 g CO2 per page load
Other 308.0 KiB 61%
HTML 101.0 KiB 20%
JavaScript 92.0 KiB 18%
Other 1.7 KiB 0%
Images 772 B 0%
Other 508 B 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 1 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://www.rd.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9eff83e5ede71cca75 KB—✓3rd
blob:https://www.rd.com/f006533e-d343-4a9f-a41f-9c577a0bc9550 KB—✓3rd
https://challenges.cloudflare.com/turnstile/v0/b/0b8fb825cb67/api.js?onload=cFRiY3&render=explicit17 KB—✓3rd
blob:https://www.rd.com/a81a3d32-be21-44ec-a472-26aee60638cf-0 KB—✓3rd
blob:https://challenges.cloudflare.com/c02492bd-acdc-4fe7-a691-28a1bb565fb30 KB—✓3rd
blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdf-0 KB—✓3rd
blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdf-0 KB—✓3rd
blob:https://challenges.cloudflare.com/3477be15-7f0f-408f-99a8-d9558a0d8b95-0 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
21 resources · 504 KB · 0 KB savings available
PASS
21 resources · 504 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 504 KB
Warning::
19 third-party resources (100% of weight)
Info::
1 resources over 200KB
21 resources · 503.9 KiB · 19 third-party Within 1MB page-weight target
Other 61% · 309.9 KiB
Document 20% · 101.2 KiB
JavaScript 18% · 92.0 KiB
Image 0% · 772 B
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
21 requests over 4989ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 486 ms LCP 1.0 shttps://rd.com// https://rd.com/ — 301 — 169 B — 15 ms — h2https://www.rd.com/www.rd.com/ https://www.rd.com/ — 307 — 56 B — 21 ms — http/1.1https://rd.com// https://rd.com/ — 301 — 0 B — 1 ms — h2https://www.rd.com/www.rd.com/ https://www.rd.com/ — 403 — 3.8 KiB — 10 ms — h2https://www.rd.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9eff83e5ede71ccawww.rd.com/cdn-cgi/challenge-platfo... https://www.rd.com/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9eff83e5ede71cca — 200 — 74.7 KiB — 24 ms — h3blob:https://www.rd.com/f006533e-d343-4a9f-a41f-9c577a0bc955www.rd.com/f006533e-d343-4a9f-a41f-... blob:https://www.rd.com/f006533e-d343-4a9f-a41f-9c577a0bc955 — -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 — 28 ms — h3https://www.rd.com/favicon.icowww.rd.com/favicon.ico https://www.rd.com/favicon.ico — 404 — 153 B — 25 ms — h3https://www.rd.com/favicon.icowww.rd.com/favicon.ico https://www.rd.com/favicon.ico — 404 — 283 B — 10 ms — h3https://www.rd.com/cdn-cgi/challenge-platform/h/b/flow/ov1/3741502405:1776806027:0Fi3Q_TuDIf5I1VqwTgiBtpYqLcmIrt4g33J3_hOYx8/9eff83e5ede71cca/U1DsSk8QTp6pObXdQjjl_Jcg05fIrXr2OhXJHzpsTuE-1776807291-1.2.1.1-a94rdDQgaXskJeDsFF8X1hkAjp0nAelP0jV3x6IgtGYjzoFnztU3QWClJ9dE.qAewww.rd.com/cdn-cgi/challenge-platfo... https://www.rd.com/cdn-cgi/challenge-platform/h/b/flow/ov1/3741502405:1776806027:0Fi3Q_TuDIf5I1VqwTgiBtpYqLcmIrt4g33J3_hOYx8/9eff83e5ede71cca/U1DsSk8QTp6pObXdQjjl_Jcg05fIrXr2OhXJHzpsTuE-1776807291-1.2.1.1-a94rdDQgaXskJeDsFF8X1hkAjp0nAelP0jV3x6IgtGYjzoFnztU3QWClJ9dE.qAe — 200 — 13.5 KiB — 19 ms — h3blob:https://www.rd.com/a81a3d32-be21-44ec-a472-26aee60638cfwww.rd.com/a81a3d32-be21-44ec-a472-... blob:https://www.rd.com/a81a3d32-be21-44ec-a472-26aee60638cf — 200 — -1 B — 86 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/turnstile/f/ov2/av0/rch/xhboa/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/xhboa/0x4AAAAAAADnPIDROrmt1Wwj/light/fbE/new/normal?lang=auto — 200 — 97.2 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/c02492bd-acdc-4fe7-a691-28a1bb565fb3challenges.cloudflare.com/c02492bd-... blob:https://challenges.cloudflare.com/c02492bd-acdc-4fe7-a691-28a1bb565fb3 — -1 — 0 B — 0 ms — https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/2249653517:1776806029:cpnPR9arugYgpdtrlcDYvf3QVXOFNte8JQPqi0lECTw/9eff83e8a93c8eab/bbPRZa_Ogy541SH.3DlSherrPe53PUiPQewW7x.6IUE-1776807292-1.2.1.1-cx2JX6qDNnXPY5us8Oj9s2lq1G4G3WwxjGTMgMgRZEjseODUvKr5EbTFPVwVIeY5challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/2249653517:1776806029:cpnPR9arugYgpdtrlcDYvf3QVXOFNte8JQPqi0lECTw/9eff83e8a93c8eab/bbPRZa_Ogy541SH.3DlSherrPe53PUiPQewW7x.6IUE-1776807292-1.2.1.1-cx2JX6qDNnXPY5us8Oj9s2lq1G4G3WwxjGTMgMgRZEjseODUvKr5EbTFPVwVIeY5 — 200 — 271.7 KiB — 108 ms — h3blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdfchallenges.cloudflare.com/21ec755b-... blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdf — 200 — -1 B — 47 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9eff83e8a93c8eab/1776807292689/WS8IU-uTu3_30-ichallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/d/9eff83e8a93c8eab/1776807292689/WS8IU-uTu3_30-i — 200 — 411 B — 12 ms — h3https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9eff83e8a93c8eab/1776807292689/5d2e37d2d99de33324455056401fa6b4a9990d89347fe9318601167cee738c7f/OFYjE4vxBjVLU6mchallenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/pat/9eff83e8a93c8eab/1776807292689/5d2e37d2d99de33324455056401fa6b4a9990d89347fe9318601167cee738c7f/OFYjE4vxBjVLU6m — 401 — 1.7 KiB — 6 ms — h3blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdfchallenges.cloudflare.com/21ec755b-... blob:https://challenges.cloudflare.com/21ec755b-1373-4539-b96d-408d435dabdf — 200 — -1 B — 22 ms — blobhttps://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/2249653517:1776806029:cpnPR9arugYgpdtrlcDYvf3QVXOFNte8JQPqi0lECTw/9eff83e8a93c8eab/bbPRZa_Ogy541SH.3DlSherrPe53PUiPQewW7x.6IUE-1776807292-1.2.1.1-cx2JX6qDNnXPY5us8Oj9s2lq1G4G3WwxjGTMgMgRZEjseODUvKr5EbTFPVwVIeY5challenges.cloudflare.com/cdn-cgi/c... https://challenges.cloudflare.com/cdn-cgi/challenge-platform/h/b/flow/ov1/2249653517:1776806029:cpnPR9arugYgpdtrlcDYvf3QVXOFNte8JQPqi0lECTw/9eff83e8a93c8eab/bbPRZa_Ogy541SH.3DlSherrPe53PUiPQewW7x.6IUE-1776807292-1.2.1.1-cx2JX6qDNnXPY5us8Oj9s2lq1G4G3WwxjGTMgMgRZEjseODUvKr5EbTFPVwVIeY5 — 200 — 22.8 KiB — 32 ms — h3blob:https://challenges.cloudflare.com/3477be15-7f0f-408f-99a8-d9558a0d8b95challenges.cloudflare.com/3477be15-... blob:https://challenges.cloudflare.com/3477be15-7f0f-408f-99a8-d9558a0d8b95 — 200 — -1 B — 46 ms — blob
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 4679ms · 75KB · $62/mo
www.rd.com
Other
Costly
Execution 4495ms
Transfer 75 KB
Monthly Cost $60/mo
Unattributable
Other
Optional
Execution 184ms
Transfer 0 KB
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • www.rd.com adds 4495ms and costs ~$60/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.rd.com takes 4495ms 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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