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Performance

· 20 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
82
GRADE
B
FIX
4
REVIEW
4
PASS
10
INFO
2

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

Mobile Desktop
95
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.
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.

667 ms

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

1.01 s

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

148 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.

770 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.

2.36 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
20
10 PASS 4 REVIEW 4 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 (1.7 MiB of 1.7 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
JS Bundles
Action
14 scripts, 931 KB unused
FIX
14 scripts, 931 KB unused
Warning::
https://www.gstatic.com/recaptcha/releases/U5VsmTD...: 175 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/U5VsmTD...: 175 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/U5VsmTD...: 175 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-client.medium.com/lite/static/js/main....: 145 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-client.medium.com/lite/static/js/2746....: 126 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 931 KB
931 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js365 KB175 KB (48%)✓3rd
https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js0 KB175 KB (48%)✓3rd
https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js364 KB175 KB (48%)✓3rd
https://cdn-client.medium.com/lite/static/js/main.24706926.js247 KB145 KB (59%)✓3rd
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js254 KB126 KB (49%)✓3rd
https://accounts.google.com/gsi/client96 KB72 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK149 KB64 KB (43%)✓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.96720962.chunk.js5 KB—✓3rd
https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312451611 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
39 resources · 1.7 MB · 931 KB savings available
FIX
39 resources · 1.7 MB · 931 KB savings available
Warning::
Page weight 1.7 MB exceeds 1 MB target by 701 KB
Got: 1.7 MB Expected: ≤ 1 MB
Info::
~931 KB of savings available
Warning::
37 third-party resources (100% of weight)
Info::
4 resources over 200KB
39 resources · 1.7 MiB · 37 third-party 700.6 KiB over 1MB target
JavaScript 88% · 1.5 MiB
Font 4% · 66.7 KiB
Image 3% · 52.7 KiB
CSS 2% · 42.7 KiB
Document 2% · 42.3 KiB
Other 1% · 10.6 KiB

~931.3 KiB of savings available

Remove unused JavaScript: 931.3 KiB
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.

C
Page Weight Budget
Action
1.7 MB transferred, 39 requests
REVIEW
1.7 MB transferred, 39 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::
39 HTTP requests
Info::
Estimated 0.35 g CO2 per page load
1.7 MB / 2.4 MB budget
1.7 MB transferred
39 requests
0.35 g CO2 per page load
JavaScript 1.5 MiB 88%
Fonts 66.7 KiB 4%
Images 51.0 KiB 3%
CSS 42.7 KiB 2%
HTML 42.3 KiB 2%
Other 8.0 KiB 0%
Other 2.2 KiB 0%
Other 1.1 KiB 0%
Other 1.0 KiB 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

B
JS Execution Cost
891ms total JS execution
REVIEW
891ms total JS execution
Warning::
https://cdn-client.medium.com/lite/static/js/2746....: 304ms CPU time
Info::
https://www.gstatic.com/recaptcha/releases/U5VsmTD...: 166ms CPU time
Info::
https://cdn-client.medium.com/lite/static/js/main....: 137ms CPU time
Info::
Unattributable: 82ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-7JY7...: 75ms CPU time
Warning::
Third-party scripts: 891ms (100% of total)

Main Thread Breakdown

Script Evaluation 75% Other 9% Script Parsing & Compilation 8% Style & Layout 4%
ScriptTotalScriptingParse/CompileParty
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js304ms274ms17ms3rd
https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js166ms144ms17ms3rd
https://cdn-client.medium.com/lite/static/js/main.24706926.js137ms113ms21ms3rd
Unattributable82ms2ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK75ms62ms12ms3rd
https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js64ms61ms1ms3rd
https://medium.com/63ms12ms2ms3rd
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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 (67 KB)
PASS
3 fonts (67 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

67 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 667 ms LCP 1.0 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 — 19.3 KiB — 50 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 — 65 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 85 ms — font-display: swap
sohne-400-normal.woff woff swap
Size 19 KB
Load time 50 ms
Start 184 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 65 ms
Start 184 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 85 ms
Start 1.1 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 ~10 KB and ~20 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+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Server-Timing Observability
1 Server-Timing entries advertised
PASS
1 Server-Timing entries advertised
Info::
Server-Timing header advertises 1 timing entries
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
39 requests over 1359ms
INFO
0 ms 500 ms 1.0 s FCP 667 ms LCP 1.0 shttps://www.medium.com// https://www.medium.com/ — 307 — 64 B — 60 ms — http/1.1https://www.medium.com// https://www.medium.com/ — 301 — 221 B — 23 ms — h2https://medium.com/medium.com/ https://medium.com/ — 200 — 14.9 KiB — 41 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 11 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 — 63 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 — 48.7 KiB — 31 ms — h2https://cdn-client.medium.com/lite/static/js/manifest.214114b1.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/manifest.214114b1.js — 200 — 6.0 KiB — 32 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 — 254.5 KiB — 105 ms — h2https://cdn-client.medium.com/lite/static/js/main.24706926.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/main.24706926.js — 200 — 247.4 KiB — 107 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 — 40 ms — h2https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.96720962.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.96720962.chunk.js — 200 — 4.5 KiB — 38 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 73 ms — h2https://medium.com/manifest.jsonmedium.com/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 170 ms — h3https://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 — 19.3 KiB — 50 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 — 65 ms — h3https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js — 200 — 364.6 KiB — 146 ms — h2https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.jsmedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 257 B — 37 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 685 B — 154 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 688 B — 146 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js?medium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js? — 200 — 10.4 KiB — 22 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 871 B — 143 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 3.3 KiB — 156 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 785 B — 147 ms — h3https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYv&size=invisible&anchor-ms=20000&execute-ms=30000&cb=mm9cm8qnxdhiwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYv&size=invisible&anchor-ms=20000&execute-ms=30000&cb=mm9cm8qnxdhi — 200 — 27.5 KiB — 78 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 862 B — 171 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb9093d9e6cbemedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb9093d9e6cbe — 200 — 831 B — 29 ms — h3https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/styles__ltr.csswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/styles__ltr.css — 200 — 42.1 KiB — 124 ms — h2https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js — 200 — 364.1 KiB — 208 ms — h2https://accounts.google.com/gsi/clientaccounts.google.com/gsi/client https://accounts.google.com/gsi/client — 200 — 96.3 KiB — 166 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 — 148.5 KiB — 183 ms — h2
0 ms 500 ms 1.0 s FCP 667 ms LCP 1.0 shttps://www.medium.com// https://www.medium.com/ — 307 — 64 B — 60 ms — http/1.1https://www.medium.com// https://www.medium.com/ — 301 — 221 B — 23 ms — h2https://medium.com/medium.com/ https://medium.com/ — 200 — 14.9 KiB — 41 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 11 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 — 63 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 — 48.7 KiB — 31 ms — h2https://cdn-client.medium.com/lite/static/js/manifest.214114b1.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/manifest.214114b1.js — 200 — 6.0 KiB — 32 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 — 254.5 KiB — 105 ms — h2https://cdn-client.medium.com/lite/static/js/main.24706926.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/main.24706926.js — 200 — 247.4 KiB — 107 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 — 40 ms — h2https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.96720962.chunk.jscdn-client.medium.com/lite/static/j... https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.96720962.chunk.js — 200 — 4.5 KiB — 38 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 73 ms — h2https://medium.com/manifest.jsonmedium.com/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 170 ms — h3https://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 — 19.3 KiB — 50 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 — 65 ms — h3https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js — 200 — 364.6 KiB — 146 ms — h2https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.jsmedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 257 B — 37 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 685 B — 154 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 688 B — 146 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js?medium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js? — 200 — 10.4 KiB — 22 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 871 B — 143 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 3.3 KiB — 156 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 785 B — 147 ms — h3https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYv&size=invisible&anchor-ms=20000&execute-ms=30000&cb=mm9cm8qnxdhiwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/anchor?ar=1&k=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp&co=aHR0cHM6Ly9tZWRpdW0uY29tOjQ0Mw..&hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYv&size=invisible&anchor-ms=20000&execute-ms=30000&cb=mm9cm8qnxdhi — 200 — 27.5 KiB — 78 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 862 B — 171 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb9093d9e6cbemedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb9093d9e6cbe — 200 — 831 B — 29 ms — h3https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/styles__ltr.csswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/styles__ltr.css — 200 — 42.1 KiB — 124 ms — h2https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js — 200 — 364.1 KiB — 208 ms — h2https://accounts.google.com/gsi/clientaccounts.google.com/gsi/client https://accounts.google.com/gsi/client — 200 — 96.3 KiB — 166 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 — 148.5 KiB — 183 ms — h2https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYvwww.google.com/recaptcha/enterprise... https://www.google.com/recaptcha/enterprise/webworker.js?hl=en&v=U5VsmTDhJM1iOJUyw4DEUTYv — 200 — 23 B — 198 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 — 32 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 — 85 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je6562v9123887712za200zd9123887712&_p=1778319418554&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=647926855.1778319419&frm=0&pscdl=noapi&rcb=19&sr=800x600&uaa=x86&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~118463262~118719170&sid=1778319418&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=1118region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je6562v9123887712za200zd9123887712&_p=1778319418554&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=647926855.1778319419&frm=0&pscdl=noapi&rcb=19&sr=800x600&uaa=x86&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115938466~115938468~118463262~118719170&sid=1778319418&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=1118 — 204 — 545 B — 76 ms — h2https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js — 200 — 0 B — 18 ms — h2https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 320 B — 157 ms — h3https://medium.com/cdn-cgi/rum?medium.com/cdn-cgi/rum? https://medium.com/cdn-cgi/rum? — 204 — 216 B — 21 ms — h3https://accounts.google.com/gsi/styleaccounts.google.com/gsi/style https://accounts.google.com/gsi/style — 200 — 643 B — 36 ms — h2https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19miro.medium.com/v2/5d8de952517e8160... https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19 — 200 — 1.7 KiB — 32 ms — h3
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 891ms · 666KB · $12/mo
cdn-client.medium.com
Other
Costly
Execution 304ms
Transfer 254 KB
Unused 49%
Monthly Cost $4/mo
www.gstatic.com
Other
Optional
Execution 166ms
Transfer 0 KB
Unused 48%
Monthly Cost $2/mo
cdn-client.medium.com
Other
Optional
Execution 137ms
Transfer 247 KB
Unused 59%
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 82ms
Transfer 0 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 75ms
Transfer 149 KB
Unused 43%
Monthly Cost $1/mo
medium.com
Other
Optional
Execution 64ms
Transfer 0 KB
Monthly Cost $1/mo
medium.com
Other
Optional
Execution 63ms
Transfer 15 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • cdn-client.medium.com adds 304ms and costs ~$4/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

cdn-client.medium.com takes 304ms 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

59% 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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