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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
4
REVIEW
2
PASS
7
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.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

633 ms

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

1.33 s

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

184 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.

771 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.

2.01 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
7 PASS 2 REVIEW 4 FIX
D
Third-Party Impact
Action
98% third-party, 0 ms blocking
FIX
98% third-party, 0 ms blocking
Warning::
Third-party code accounts for 98% of page weight (1.6 MiB of 1.7 MiB)
Info::
Third-party blocking time is low (0 ms)
98%
First-party Third-party
F
JS Bundles
Action
14 scripts, 929 KB unused
FIX
14 scripts, 929 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 177 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-client.medium.com/lite/static/js/main....: 147 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-client.medium.com/lite/static/js/2746....: 116 KB unused (45%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 929 KB
929 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB177 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB177 KB (49%)✓3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB177 KB (49%)✓3rd
https://cdn-client.medium.com/lite/static/js/main.df962949.js247 KB147 KB (60%)✓3rd
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js255 KB116 KB (45%)✓3rd
https://accounts.google.com/gsi/client96 KB72 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK149 KB63 KB (42%)✓3rd
https://cdn-client.medium.com/lite/static/js/instrumentation.bbc70038.chunk.js2 KB—✓3rd
https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.eb0cf9a0.chunk.js5 KB—✓3rd
https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c12417176891760157 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

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

F
Page Weight Inventory
Action
37 resources · 1.7 MB · 929 KB savings available
FIX
37 resources · 1.7 MB · 929 KB savings available
Warning::
Page weight 688 KB over 1MB target
Got: 1.7 MB Expected: ≤ 1 MB
Info::
~929 KB of savings available
Warning::
24 third-party resources (98% of weight)
Info::
4 resources over 200KB
37 resources · 1.7 MiB · 24 third-party 687.5 KiB over 1MB target
JavaScript 88% · 1.5 MiB
Font 4% · 60.4 KiB
Image 3% · 52.6 KiB
CSS 2% · 42.8 KiB
Document 2% · 41.8 KiB
Other 1% · 9.4 KiB

~928.8 KiB of savings available

Remove unused JavaScript: 928.8 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
C
Page Weight Budget
Action
1.7 MB transferred, 37 requests
REVIEW
1.7 MB transferred, 37 requests
Info::
Page weighs 5.4 MB (1.7 MB transferred)
Warning::
JavaScript is 1.5 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.5 MB
Info::
37 HTTP requests
Info::
Estimated 0.35 g CO2 per page load
1.7 MB / 2.4 MB budget
1.7 MB transferred
37 requests
0.35 g CO2 per page load
JavaScript 1.5 MiB 88%
Fonts 60.4 KiB 4%
Images 50.9 KiB 3%
CSS 42.8 KiB 2%
HTML 41.8 KiB 2%
Other 7.1 KiB 0%
Other 2.0 KiB 0%
Other 1.1 KiB 0%
Other 1002 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

C
JS Execution Cost
Action
1206ms total JS execution
REVIEW
1206ms total JS execution
Warning::
https://cdn-client.medium.com/lite/static/js/2746....: 437ms CPU time
Info::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 236ms CPU time
Info::
https://cdn-client.medium.com/lite/static/js/main....: 183ms CPU time
Info::
https://medium.com/: 96ms CPU time
Info::
Unattributable: 94ms CPU time
Warning::
Third-party scripts: 1023ms (85% of total)

Main Thread Breakdown

Script Evaluation 74% Script Parsing & Compilation 10% Other 8% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js437ms390ms27ms3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js236ms198ms31ms3rd
https://cdn-client.medium.com/lite/static/js/main.df962949.js183ms142ms38ms3rd
https://medium.com/96ms13ms2ms1st
Unattributable94ms3ms0ms3rd
https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js87ms83ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK74ms60ms14ms3rd
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
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 51 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
3 fonts (60 KB)
PASS
3 fonts (60 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

60 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 FCP 633 ms LCP 1.3 shttps://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woffsohne-400-normal.woff https://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woff — 13.0 KiB — 28 ms — font-display: swaphttps://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woffgt-super-400-normal.woff https://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woff — 13.5 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 75 ms — font-display: swap
sohne-400-normal.woff woff swap
Size 13 KB
Load time 28 ms
Start 130 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
gt-super-400-normal.woff woff swap
Size 13 KB
Load time 28 ms
Start 131 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 75 ms
Start 1.2 s
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 ~8 KB and ~16 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+
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
37 requests over 1556ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 633 ms LCP 1.3 shttps://medium.com// https://medium.com/ — 200 — 14.2 KiB — 45 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 6 ms — h2https://www.google.com/recaptcha/enterprise.js?render=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVpwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise.js?render=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp — 200 — 1.1 KiB — 119 ms — h3https://miro.medium.com/v2/format:webp/4*SdjkdS98aKH76I8eD0_qjw.pngmiro.medium.com/v2/format:webp/4*Sd... https://miro.medium.com/v2/format:webp/4*SdjkdS98aKH76I8eD0_qjw.png — 200 — 48.6 KiB — 22 ms — h2https://cdn-client.medium.com/lite/static/js/manifest.4083da80.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/manifest.4083da80.js — 200 — 5.9 KiB — 35 ms — h2https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js — 200 — 254.8 KiB — 53 ms — h2https://cdn-client.medium.com/lite/static/js/main.df962949.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/main.df962949.js — 200 — 247.1 KiB — 49 ms — h2https://cdn-client.medium.com/lite/static/js/instrumentation.bbc70038.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/instrumentation.bbc70038.chunk.js — 200 — 1.6 KiB — 28 ms — h2https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.eb0cf9a0.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.eb0cf9a0.chunk.js — 200 — 4.7 KiB — 18 ms — h2https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 — 200 — 6.9 KiB — 21 ms — h2https://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woffglyph.medium.com/font/b492c44/0-3j_... https://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woff — 200 — 13.0 KiB — 28 ms — h3https://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woffglyph.medium.com/font/4a44748/0-3j_... https://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woff — 200 — 13.5 KiB — 28 ms — h3https://medium.com/manifest.json/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 164 ms — h3https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 307 B — 60 ms — h3https://medium.com/_/clientele/reports/performance//_/clientele/reports/performance/ https://medium.com/_/clientele/reports/performance/ — 200 — 557 B — 237 ms — h3https://medium.com/_/clientele/reports/performance//_/clientele/reports/performance/ https://medium.com/_/clientele/reports/performance/ — 200 — 556 B — 220 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?/cdn-cgi/challenge-platform/h/g/scr... https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js? — 200 — 13.6 KiB — 18 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 754 B — 175 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 3.0 KiB — 189 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 656 B — 179 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 732 B — 197 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 362.4 KiB — 24 ms — h2https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/b0a7532ac8ec/0.9543941704026684:1776356032:_Xqv3-XFS5IXsWgtTJflqAxnJRRyr2Oet6KvHrd5Lrs/9ed4cc8e4efdc250/cdn-cgi/challenge-platform/h/g/jsd... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/b0a7532ac8ec/0.9543941704026684:1776356032:_Xqv3-XFS5IXsWgtTJflqAxnJRRyr2Oet6KvHrd5Lrs/9ed4cc8e4efdc250 — 200 — 865 B — 22 ms — h3https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=8tul8vpczl8awww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=8tul8vpczl8a — 200 — 27.6 KiB — 185 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.csswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.css — 200 — 42.1 KiB — 67 ms — h2https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 361.9 KiB — 82 ms — h2https://accounts.google.com/gsi/clientaccounts.google.com/gsi/client https://accounts.google.com/gsi/client — 200 — 96.1 KiB — 285 ms — h2https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PKwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK — 200 — 148.6 KiB — 313 ms — h2https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4www.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4 — 200 — 23 B — 278 ms — h3https://www.gstatic.com/recaptcha/api2/logo_48.pngwww.gstatic.com/recaptcha/api2/logo... https://www.gstatic.com/recaptcha/api2/logo_48.png — 200 — 2.3 KiB — 5 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 633 ms LCP 1.3 shttps://medium.com// https://medium.com/ — 200 — 14.2 KiB — 45 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 6 ms — h2https://www.google.com/recaptcha/enterprise.js?render=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVpwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise.js?render=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp — 200 — 1.1 KiB — 119 ms — h3https://miro.medium.com/v2/format:webp/4*SdjkdS98aKH76I8eD0_qjw.pngmiro.medium.com/v2/format:webp/4*Sd... https://miro.medium.com/v2/format:webp/4*SdjkdS98aKH76I8eD0_qjw.png — 200 — 48.6 KiB — 22 ms — h2https://cdn-client.medium.com/lite/static/js/manifest.4083da80.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/manifest.4083da80.js — 200 — 5.9 KiB — 35 ms — h2https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js — 200 — 254.8 KiB — 53 ms — h2https://cdn-client.medium.com/lite/static/js/main.df962949.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/main.df962949.js — 200 — 247.1 KiB — 49 ms — h2https://cdn-client.medium.com/lite/static/js/instrumentation.bbc70038.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/instrumentation.bbc70038.chunk.js — 200 — 1.6 KiB — 28 ms — h2https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.eb0cf9a0.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.eb0cf9a0.chunk.js — 200 — 4.7 KiB — 18 ms — h2https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 — 200 — 6.9 KiB — 21 ms — h2https://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woffglyph.medium.com/font/b492c44/0-3j_... https://glyph.medium.com/font/b492c44/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/sohne-400-normal.woff — 200 — 13.0 KiB — 28 ms — h3https://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woffglyph.medium.com/font/4a44748/0-3j_... https://glyph.medium.com/font/4a44748/0-3j_4g_53_6bu_6c4_6c8_6c9_6cc_6cd_6ci_6cm/gt-super-400-normal.woff — 200 — 13.5 KiB — 28 ms — h3https://medium.com/manifest.json/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 164 ms — h3https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 307 B — 60 ms — h3https://medium.com/_/clientele/reports/performance//_/clientele/reports/performance/ https://medium.com/_/clientele/reports/performance/ — 200 — 557 B — 237 ms — h3https://medium.com/_/clientele/reports/performance//_/clientele/reports/performance/ https://medium.com/_/clientele/reports/performance/ — 200 — 556 B — 220 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?/cdn-cgi/challenge-platform/h/g/scr... https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js? — 200 — 13.6 KiB — 18 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 754 B — 175 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 3.0 KiB — 189 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 656 B — 179 ms — h3https://medium.com/_/graphql/_/graphql https://medium.com/_/graphql — 200 — 732 B — 197 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 362.4 KiB — 24 ms — h2https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/b0a7532ac8ec/0.9543941704026684:1776356032:_Xqv3-XFS5IXsWgtTJflqAxnJRRyr2Oet6KvHrd5Lrs/9ed4cc8e4efdc250/cdn-cgi/challenge-platform/h/g/jsd... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/b0a7532ac8ec/0.9543941704026684:1776356032:_Xqv3-XFS5IXsWgtTJflqAxnJRRyr2Oet6KvHrd5Lrs/9ed4cc8e4efdc250 — 200 — 865 B — 22 ms — h3https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=8tul8vpczl8awww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=8tul8vpczl8a — 200 — 27.6 KiB — 185 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.csswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/styles__ltr.css — 200 — 42.1 KiB — 67 ms — h2https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 361.9 KiB — 82 ms — h2https://accounts.google.com/gsi/clientaccounts.google.com/gsi/client https://accounts.google.com/gsi/client — 200 — 96.1 KiB — 285 ms — h2https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PKwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK — 200 — 148.6 KiB — 313 ms — h2https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4www.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=gTpTIWhbKpxADzTzkcabhXN4 — 200 — 23 B — 278 ms — h3https://www.gstatic.com/recaptcha/api2/logo_48.pngwww.gstatic.com/recaptcha/api2/logo... https://www.gstatic.com/recaptcha/api2/logo_48.png — 200 — 2.3 KiB — 5 ms — h2https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2fonts.gstatic.com/s/roboto/v48/KFO7... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 200 — 33.9 KiB — 75 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 0 B — 22 ms — h2https://www.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je64f1h2v9123887712za200zd9123887712&_p=1776359381169&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=645294369.1776359382&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512543~118289195&sid=1776359381&sct=1&seg=0&dl=https%3A%2F%2Fmedium.com%2F&dt=Medium%3A%20Read%20and%20write%20stories.&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1367www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je64f1h2v9123887712za200zd9123887712&_p=1776359381169&gcd=13l3l3l3l1l1&npa=0&dma=0&are=1&cid=645294369.1776359382&frm=0&pscdl=noapi&rcb=5&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938469~117266401~117512543~118289195&sid=1776359381&sct=1&seg=0&dl=https%3A%2F%2Fmedium.com%2F&dt=Medium%3A%20Read%20and%20write%20stories.&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=1367 — 204 — 554 B — 127 ms — h2https://medium.com/_/clientele/reports/performance//_/clientele/reports/performance/ https://medium.com/_/clientele/reports/performance/ — 200 — 334 B — 179 ms — h3https://medium.com/cdn-cgi/rum?/cdn-cgi/rum? https://medium.com/cdn-cgi/rum? — 204 — 137 B — 12 ms — h3https://accounts.google.com/gsi/styleaccounts.google.com/gsi/style https://accounts.google.com/gsi/style — 200 — 642 B — 60 ms — h2https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19miro.medium.com/v2/5d8de952517e8160... https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19 — 200 — 1.7 KiB — 28 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
85% of JavaScript execution is third-party
First-party Third-party 1023ms · 650KB · $14/mo
cdn-client.medium.com
Other
Costly
Execution 437ms
Transfer 255 KB
Unused 45%
Monthly Cost $6/mo
www.gstatic.com
Other
Costly
Execution 236ms
Transfer 0 KB
Unused 49%
Monthly Cost $3/mo
cdn-client.medium.com
Other
Optional
Execution 183ms
Transfer 247 KB
Unused 60%
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 94ms
Transfer 0 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 74ms
Transfer 149 KB
Unused 42%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • cdn-client.medium.com adds 437ms and costs ~$6/month
  • www.gstatic.com adds 236ms and costs ~$3/month

85% 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

cdn-client.medium.com takes 437ms 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

www.gstatic.com takes 236ms 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

60% of cdn-client.medium.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

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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