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https://simplypsychology.org

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
4
PASS
8
INFO
2

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

Mobile Desktop
85
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
92
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.

914 ms

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

2.40 s

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.

0.004

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

1.30 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.

2.41 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
15
8 PASS 4 REVIEW 1 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 (1.1 MiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
B
Page Weight Budget
1.1 MB transferred, 54 requests
REVIEW
1.1 MB transferred, 54 requests
Info::
Page weighs 2.4 MB (1.1 MB transferred)
Info::
54 HTTP requests
Info::
Estimated 0.23 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
54 requests
0.23 g CO2 per page load
Images 593.6 KiB 53%
JavaScript 410.3 KiB 37%
Fonts 58.2 KiB 5%
HTML 37.1 KiB 3%
Other 4.4 KiB 0%
Other 3.3 KiB 0%
Other 1.8 KiB 0%
CSS 1.8 KiB 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
B
Image Optimization
22 images, 0 KB saveable
REVIEW
22 images, 0 KB saveable
Info::
All images are well-optimized
22 images 594 KB
0 oversized -0 KB
4 legacy format
0 missing dimensions CLS risk
B
JS Bundles
17 scripts, 135 KB unused
REVIEW
17 scripts, 135 KB unused
Warning::
https://scripts.mediavine.com/tags/3.44.10__cgroup...: 41 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://eu-us-cdn.consentmanager.net/delivery/js/c...: 35 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://faves.grow.me/app.9.42.0.js: 35 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.simplypsychology.org/wp-includes/js/jq...: 24 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 135 KB
135 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://scripts.mediavine.com/tags/3.44.10__cgroup3.44.10-3895-sanitize/wrapper.min.js?bust=-106300910178 KB41 KB (53%)✓3rd
https://eu-us-cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-22101 KB35 KB (35%)✓3rd
https://faves.grow.me/app.9.42.0.js64 KB35 KB (55%)✓3rd
https://www.simplypsychology.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.132 KB24 KB (76%)✓3rd
https://scripts.mediavine.com/tags/3318/fa6cd5e582c41b54b01c.min.js4 KB—✓3rd
https://exchange.mediavine.com/usersync.min.js?s2sVersion=crusty-c5 KB—✓3rd
https://scripts.mediavine.com/tags/3995/9821ff725623e34a92dd.min.js11 KB—✓3rd
https://scripts.mediavine.com/tags/gdpr/7cff4d3cf58248df9dda.min.js7 KB—✓3rd
https://scripts.mediavine.com/tags/simply-psychology.js?ver=6.9.431 KB—✓3rd
https://scripts.mediavine.com/tags/cmp/e8484401c62373a45398.min.js9 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

B
HTTP Caching
public, max-age=0, s-maxage=2592000
REVIEW
public, max-age=0, s-maxage=2592000
Info::
Cache-Control header is set
Got: public, max-age=0, s-maxage=2592000
Info::
CDN TTL: 4 weeks (s-maxage=2592000)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, s-maxage=2592000

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
s-maxage2592000CDN caches for 4 weeks
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+
JS Execution Cost
301ms total JS execution
PASS
301ms total JS execution
Info::
https://www.simplypsychology.org/: 160ms CPU time
Info::
Unattributable: 74ms CPU time
Info::
https://eu-us-cdn.consentmanager.net/delivery/cust...: 68ms CPU time
Warning::
Third-party scripts: 301ms (100% of total)

Main Thread Breakdown

Script Evaluation 43% Other 24% Style & Layout 20% Script Parsing & Compilation 6% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://www.simplypsychology.org/160ms16ms1ms3rd
Unattributable74ms12ms0ms3rd
https://eu-us-cdn.consentmanager.net/delivery/customdata/bV8xLndfMTM0MzQ5LnJfR0RQUi5sX2VuLmRfNTIzNDIueF80Mi52LnAudF81MjM0Mi54dF8yNTc2.js68ms54ms3ms3rd
A+
Font Loading
3 fonts (58 KB)
PASS
3 fonts (58 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

58 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 914 ms LCP 2.4 shttps://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2S6u9w4BMUTPHh6UVSwiPGQ.... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2 — 22.5 KiB — 35 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh50XSwiPGQ.woff2S6u9w4BMUTPHh50XSwiPGQ.... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh50XSwiPGQ.woff2 — 22.0 KiB — 29 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2S6uyw4BMUTPHjx4wXiWtFCc... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 13.7 KiB — 28 ms — font-display: swap
S6u9w4BMUTPHh6UVSwiPGQ.... woff2 swap
Size 23 KB
Load time 35 ms
Start 463 ms
Risk FOUT — text flashes from fallback to web font
S6u9w4BMUTPHh50XSwiPGQ.... woff2 swap
Size 22 KB
Load time 29 ms
Start 536 ms
Risk FOUT — text flashes from fallback to web font
S6uyw4BMUTPHjx4wXiWtFCc... woff2 swap
Size 14 KB
Load time 28 ms
Start 591 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)
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
54 resources · 1.1 MB · 135 KB savings available
PASS
54 resources · 1.1 MB · 135 KB savings available
Warning::
Page weight 87 KB over 1MB target
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~135 KB of savings available
Warning::
53 third-party resources (100% of weight)
Info::
1 resources over 200KB
54 resources · 1.1 MiB · 53 third-party 86.5 KiB over 1MB target
Image 54% · 594.6 KiB
JavaScript 37% · 413.8 KiB
Font 5% · 58.2 KiB
Document 3% · 38.0 KiB
Other 0% · 4.2 KiB
CSS 0% · 1.8 KiB

~135.3 KiB of savings available

Remove unused JavaScript: 135.3 KiB
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
54 requests over 1224ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 914 ms LCP 2.4 shttps://simplypsychology.org// https://simplypsychology.org/ — 301 — 517 B — 358 ms — h2https://www.simplypsychology.org/www.simplypsychology.org/ https://www.simplypsychology.org/ — 200 — 37.1 KiB — 90 ms — h3https://fonts.googleapis.com/css?family=Inter%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%7CDM%20Serif%20Display%3Aregular%2Citalic%7CLato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic&display=swapfonts.googleapis.com/css?family=Int... https://fonts.googleapis.com/css?family=Inter%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%7CDM%20Serif%20Display%3Aregular%2Citalic%7CLato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic&display=swap — 200 — 1.8 KiB — 77 ms — h2https://www.simplypsychology.org/wp-content/uploads/stress-300x169.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/stress-300x169.jpg — 200 — 15.4 KiB — 56 ms — h3https://scripts.mediavine.com/tags/simply-psychology.js?ver=6.9.4scripts.mediavine.com/tags/simply-p... https://scripts.mediavine.com/tags/simply-psychology.js?ver=6.9.4 — 200 — 31.1 KiB — 11 ms — h2https://www.simplypsychology.org/wp-content/uploads/logo-no-background.pngwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/logo-no-background.png — 200 — 38.8 KiB — 67 ms — h3https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Mobile-Logo2.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Mobile-Logo2.jpg — 200 — 4.7 KiB — 66 ms — h3https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Logo.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Logo.jpg — 200 — 20.5 KiB — 44 ms — h3https://www.simplypsychology.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1www.simplypsychology.org/wp-include... https://www.simplypsychology.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 31.7 KiB — 55 ms — h3https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2fonts.gstatic.com/s/lato/v25/S6u9w4... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2 — 200 — 22.5 KiB — 35 ms — h3https://www.simplypsychology.org/wp-content/uploads/Emotional-Intelligence-300x225.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Emotional-Intelligence-300x225.jpg — 200 — 12.8 KiB — 42 ms — h3https://www.simplypsychology.org/wp-content/uploads/attachment-working-models-300x300.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/attachment-working-models-300x300.jpg — 200 — 12.9 KiB — 34 ms — h3https://www.simplypsychology.org/wp-content/uploads/Alfred-Adler-300x300.jpegwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Alfred-Adler-300x300.jpeg — 200 — 14.1 KiB — 38 ms — h3https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 110 ms — h3https://scripts.mediavine.com/flooring/countryLookupscripts.mediavine.com/flooring/coun... https://scripts.mediavine.com/flooring/countryLookup — 200 — 248 B — 6 ms — h2https://scripts.mediavine.com/launcher/settings.json?off=mediavinescripts.mediavine.com/launcher/sett... https://scripts.mediavine.com/launcher/settings.json?off=mediavine — 200 — 3.5 KiB — 7 ms — h2https://library.generateblocks.com/wp-content/uploads/2022/05/pexels-andrew-mcmurtrie-3973905.jpglibrary.generateblocks.com/wp-conte... https://library.generateblocks.com/wp-content/uploads/2022/05/pexels-andrew-mcmurtrie-3973905.jpg — 200 — 386.2 KiB — 665 ms — h2https://www.simplypsychology.org/wp-content/uploads/avoidant-couple-300x240.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/avoidant-couple-300x240.jpg — 200 — 5.9 KiB — 39 ms — h3https://www.simplypsychology.org/wp-content/uploads/couple-date-300x200.jpegwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/couple-date-300x200.jpeg — 200 — 14.6 KiB — 65 ms — h3https://www.simplypsychology.org/wp-content/uploads/attachment-style-graph-300x300.jpegwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/attachment-style-graph-300x300.jpeg — 200 — 8.0 KiB — 50 ms — h3https://www.simplypsychology.org/wp-content/uploads/Shame-The-Most-Difficult-Emotion-300x218.jpegwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Shame-The-Most-Difficult-Emotion-300x218.jpeg — 200 — 11.0 KiB — 47 ms — h3https://www.simplypsychology.org/wp-content/uploads/generalized-anxiety-300x200.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/generalized-anxiety-300x200.jpg — 200 — 12.6 KiB — 54 ms — h3https://www.simplypsychology.org/wp-content/uploads/emotion-dysregulation-anxiety-autism-300x169.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/emotion-dysregulation-anxiety-autism-300x169.jpg — 200 — 4.1 KiB — 52 ms — h3https://www.simplypsychology.org/wp-content/uploads/Relationships-2-150x150.pngwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Relationships-2-150x150.png — 200 — 4.5 KiB — 50 ms — h3https://www.simplypsychology.org/wp-content/uploads/Anxiety-150x150.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Anxiety-150x150.jpg — 200 — 3.6 KiB — 64 ms — h3https://www.simplypsychology.org/wp-content/uploads/aqa-logo2-1-150x150.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/aqa-logo2-1-150x150.jpg — 200 — 2.2 KiB — 53 ms — h3https://www.simplypsychology.org/wp-content/uploads/society-1.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/society-1.jpg — 200 — 11.3 KiB — 52 ms — h3https://www.simplypsychology.org/wp-content/uploads/news-icon-300x216.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/news-icon-300x216.jpg — 200 — 7.8 KiB — 53 ms — h3https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh50XSwiPGQ.woff2fonts.gstatic.com/s/lato/v25/S6u9w4... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh50XSwiPGQ.woff2 — 200 — 22.0 KiB — 29 ms — h3https://keywords.mediavine.com/keyword?pageUrl=https://www.simplypsychology.org/keywords.mediavine.com/keyword?page... https://keywords.mediavine.com/keyword?pageUrl=https://www.simplypsychology.org/ — 204 — 0 B — 108 ms — h2
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 914 ms LCP 2.4 shttps://simplypsychology.org// https://simplypsychology.org/ — 301 — 517 B — 358 ms — h2https://www.simplypsychology.org/www.simplypsychology.org/ https://www.simplypsychology.org/ — 200 — 37.1 KiB — 90 ms — h3https://fonts.googleapis.com/css?family=Inter%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%7CDM%20Serif%20Display%3Aregular%2Citalic%7CLato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic&display=swapfonts.googleapis.com/css?family=Int... https://fonts.googleapis.com/css?family=Inter%3A100%2C200%2C300%2Cregular%2C500%2C600%2C700%2C800%2C900%7CDM%20Serif%20Display%3Aregular%2Citalic%7CLato%3A100%2C100italic%2C300%2C300italic%2Cregular%2Citalic%2C700%2C700italic%2C900%2C900italic&display=swap — 200 — 1.8 KiB — 77 ms — h2https://www.simplypsychology.org/wp-content/uploads/stress-300x169.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/stress-300x169.jpg — 200 — 15.4 KiB — 56 ms — h3https://scripts.mediavine.com/tags/simply-psychology.js?ver=6.9.4scripts.mediavine.com/tags/simply-p... https://scripts.mediavine.com/tags/simply-psychology.js?ver=6.9.4 — 200 — 31.1 KiB — 11 ms — h2https://www.simplypsychology.org/wp-content/uploads/logo-no-background.pngwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/logo-no-background.png — 200 — 38.8 KiB — 67 ms — h3https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Mobile-Logo2.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Mobile-Logo2.jpg — 200 — 4.7 KiB — 66 ms — h3https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Logo.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Simply-Psychology-Logo.jpg — 200 — 20.5 KiB — 44 ms — h3https://www.simplypsychology.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1www.simplypsychology.org/wp-include... https://www.simplypsychology.org/wp-includes/js/jquery/jquery.min.js?ver=3.7.1 — 200 — 31.7 KiB — 55 ms — h3https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2fonts.gstatic.com/s/lato/v25/S6u9w4... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ.woff2 — 200 — 22.5 KiB — 35 ms — h3https://www.simplypsychology.org/wp-content/uploads/Emotional-Intelligence-300x225.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Emotional-Intelligence-300x225.jpg — 200 — 12.8 KiB — 42 ms — h3https://www.simplypsychology.org/wp-content/uploads/attachment-working-models-300x300.jpgwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/attachment-working-models-300x300.jpg — 200 — 12.9 KiB — 34 ms — h3https://www.simplypsychology.org/wp-content/uploads/Alfred-Adler-300x300.jpegwww.simplypsychology.org/wp-content... https://www.simplypsychology.org/wp-content/uploads/Alfred-Adler-300x300.jpeg — 200 — 14.1 KiB — 38 ms — h3https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 34.0 KiB — 110 ms — h3https://scripts.mediavine.com/flooring/countryLookupscripts.mediavine.com/flooring/coun... https://scripts.mediavine.com/flooring/countryLookup — 200 — 248 B — 6 ms — h2https://scripts.mediavine.com/launcher/settings.json?off=mediavinescripts.mediavine.com/launcher/sett... https://scripts.mediavine.com/launcher/settings.json?off=mediavine — 200 — 3.5 KiB — 7 ms — h2https://library.generateblocks.com/wp-content/uploads/2022/05/pexels-andrew-mcmurtrie-3973905.jpglibrary.generateblocks.com/wp-conte... https://library.generateblocks.com/wp-content/uploads/2022/05/pexels-andrew-mcmurtrie-3973905.jpg 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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
100% of JavaScript execution is third-party
First-party Third-party 301ms · 63KB · $4/mo
www.simplypsychology.org
Other
Optional
Execution 160ms
Transfer 37 KB
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 74ms
Transfer 0 KB
Monthly Cost $1/mo
eu-us-cdn.consentmanager.net
Other
Optional
Execution 68ms
Transfer 26 KB
Monthly Cost $1/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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