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Performance

· 24 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
82
GRADE
B
FIX
5
REVIEW
3
PASS
14
INFO
2

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

Mobile Desktop
69
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

1.86 s

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

2.65 s

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

1.55 s

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

0.001

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

2.33 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.

12.25 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
24
14 PASS 3 REVIEW 5 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 (1.6 MiB of 1.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
3362ms total JS execution
FIX
3362ms total JS execution
Warning::
https://cdn-client.medium.com/lite/static/js/2746....: 1219ms CPU time
Warning::
https://www.gstatic.com/recaptcha/releases/U5VsmTD...: 629ms CPU time
Warning::
https://cdn-client.medium.com/lite/static/js/main....: 512ms CPU time
Warning::
Unattributable: 252ms CPU time
Info::
https://medium.com/cdn-cgi/challenge-platform/scri...: 246ms CPU time
Warning::
Third-party scripts: 3362ms (100% of total)

Main Thread Breakdown

Script Evaluation 77% Other 10% Script Parsing & Compilation 7% Style & Layout 3%
ScriptTotalScriptingParse/CompileParty
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js1219ms1088ms55ms3rd
https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js629ms542ms68ms3rd
https://cdn-client.medium.com/lite/static/js/main.24706926.js512ms426ms75ms3rd
Unattributable252ms8ms0ms3rd
https://medium.com/cdn-cgi/challenge-platform/scripts/jsd/main.js246ms217ms2ms3rd
https://medium.com/203ms38ms6ms3rd
https://www.googletagmanager.com/gtag/js?id=G-7JY7T788PK197ms160ms36ms3rd
https://cdn-client.medium.com/lite/static/js/HomeLoLegacyPage.MainContent.96720962.chunk.js104ms103ms1ms3rd
F
JS Bundles
Action
13 scripts, 860 KB unused
FIX
13 scripts, 860 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....: 146 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: 860 KB
860 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 KB146 KB (59%)✓3rd
https://cdn-client.medium.com/lite/static/js/2746.261ecfe2.js255 KB126 KB (49%)✓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
https://www.google.com/recaptcha/enterprise.js?render=6Le-uGgpAAAAAPprRaokM8AKthQ9KNGdoxaGUvVp1 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
36 resources · 1.6 MB · 860 KB savings available
FIX
36 resources · 1.6 MB · 860 KB savings available
Warning::
Page weight 1.6 MB exceeds 1 MB target by 604 KB
Got: 1.6 MB Expected: ≤ 1 MB
Info::
~860 KB of savings available
Warning::
35 third-party resources (100% of weight)
Info::
4 resources over 200KB
36 resources · 1.6 MiB · 35 third-party 603.9 KiB over 1MB target
JavaScript 87% · 1.4 MiB
Font 4% · 66.7 KiB
Image 3% · 52.6 KiB
Document 3% · 42.6 KiB
CSS 3% · 42.1 KiB
Other 1% · 10.3 KiB

~859.9 KiB of savings available

Remove unused JavaScript: 859.9 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
1.6 MB transferred, 36 requests
REVIEW
1.6 MB transferred, 36 requests
Info::
Page weighs 5.2 MB (1.6 MB transferred)
Warning::
JavaScript is 1.4 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.4 MB
Info::
36 HTTP requests
Info::
Estimated 0.33 g CO2 per page load
1.6 MB / 2.4 MB budget
1.6 MB transferred
36 requests
0.33 g CO2 per page load
JavaScript 1.4 MiB 87%
Fonts 66.7 KiB 4%
Images 50.9 KiB 3%
HTML 42.6 KiB 3%
CSS 42.1 KiB 3%
Other 7.9 KiB 0%
Other 2.2 KiB 0%
Other 1.1 KiB 0%
Other 842 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
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 1.5 s 2.0 s 2.5 s FCP 1.9 s LCP 2.7 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 — 56 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 — 57 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 102 ms — font-display: swap
sohne-400-normal.woff woff swap
Size 19 KB
Load time 56 ms
Start 195 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 57 ms
Start 196 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 102 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 ~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+
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
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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
36 requests over 1456ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.9 s LCP 2.7 shttps://www.medium.com// https://www.medium.com/ — 301 — 350 B — 68 ms — h2https://medium.com/medium.com/ https://medium.com/ — 200 — 14.8 KiB — 51 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 29 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 — 72 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 — 62 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 — 6.1 KiB — 57 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 — 254.6 KiB — 135 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 — 137 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 — 65 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 — 64 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 99 ms — h2https://medium.com/manifest.jsonmedium.com/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 173 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 — 56 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 — 57 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 — 148 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 — 142 B — 79 ms — h2https://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 — 10.5 KiB — 24 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 687 B — 151 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 688 B — 139 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 871 B — 144 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 3.3 KiB — 152 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb8b04be8cddfmedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb8b04be8cddf — 200 — 625 B — 26 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 785 B — 146 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 865 B — 154 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=44cqvfyeqq7bwww.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=44cqvfyeqq7b — 200 — 27.8 KiB — 75 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 — 126 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 — 211 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 — 187 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je6562v9123887712za200zd9123887712&_p=1778319404356&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=548559883.1778319405&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~118463261~118494634&sid=1778319404&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=1778319404356&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=548559883.1778319405&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~118463261~118494634&sid=1778319404&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 — 89 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 — 224 ms — h3
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.9 s LCP 2.7 shttps://www.medium.com// https://www.medium.com/ — 301 — 350 B — 68 ms — h2https://medium.com/medium.com/ https://medium.com/ — 200 — 14.8 KiB — 51 ms — h2https://glyph.medium.com/css/unbound.cssglyph.medium.com/css/unbound.css https://glyph.medium.com/css/unbound.css — 200 — 0 B — 29 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 — 72 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 — 62 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 — 6.1 KiB — 57 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 — 254.6 KiB — 135 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 — 137 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 — 65 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 — 64 ms — h2https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 — 200 — 10.7 KiB — 99 ms — h2https://medium.com/manifest.jsonmedium.com/manifest.json https://medium.com/manifest.json — 200 — 1.1 KiB — 173 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 — 56 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 — 57 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 — 148 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 — 142 B — 79 ms — h2https://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 — 10.5 KiB — 24 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 687 B — 151 ms — h3https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 688 B — 139 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 871 B — 144 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 3.3 KiB — 152 ms — h3https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb8b04be8cddfmedium.com/cdn-cgi/challenge-platfo... https://medium.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.7937724239841057:1778318525:8V8hjAZRNLv1QPAtFkWVGjzwByd7eVnJCT0lA_Ytamo/9f8fb8b04be8cddf — 200 — 625 B — 26 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 785 B — 146 ms — h3https://medium.com/_/graphqlmedium.com/_/graphql https://medium.com/_/graphql — 200 — 865 B — 154 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=44cqvfyeqq7bwww.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=44cqvfyeqq7b — 200 — 27.8 KiB — 75 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 — 126 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 — 211 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 — 187 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-7JY7T788PK&gtm=45je6562v9123887712za200zd9123887712&_p=1778319404356&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=548559883.1778319405&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~118463261~118494634&sid=1778319404&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=1778319404356&gcd=13l3lPl2l1l1&npa=1&dma_cps=a&dma=1&are=1&cid=548559883.1778319405&frm=0&pscdl=noapi&rcb=2&sr=412x823&uaa=&uab=64&uafvl=Not%252FA)Brand%3B99.0.0.0%7CChromium%3B148.0.7778.96&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115938465~115938468~118463261~118494634&sid=1778319404&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 — 89 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 — 224 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 — 31 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 — 102 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 — 0 B — 17 ms — h2https://medium.com/_/clientele/reports/performance/medium.com/_/clientele/reports/perf... https://medium.com/_/clientele/reports/performance/ — 200 — 321 B — 163 ms — h3https://medium.com/cdn-cgi/rum?medium.com/cdn-cgi/rum? https://medium.com/cdn-cgi/rum? — 204 — 217 B — 21 ms — h3https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19miro.medium.com/v2/5d8de952517e8160... https://miro.medium.com/v2/5d8de952517e8160e40ef9841c781cdc14a5db313057fa3c3de41c6f5b494b19 — 200 — 1.7 KiB — 26 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 3362ms · 670KB · $45/mo
cdn-client.medium.com
Other
Costly
Execution 1219ms
Transfer 255 KB
Unused 49%
Monthly Cost $16/mo
www.gstatic.com
Other
Costly
Execution 629ms
Transfer 0 KB
Unused 48%
Monthly Cost $8/mo
cdn-client.medium.com
Other
Costly
Execution 512ms
Transfer 247 KB
Unused 59%
Monthly Cost $7/mo
Unattributable
Other
Costly
Execution 252ms
Transfer 0 KB
Monthly Cost $3/mo
medium.com
Other
Costly
Execution 246ms
Transfer 0 KB
Monthly Cost $3/mo
medium.com
Other
Costly
Execution 203ms
Transfer 15 KB
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Optional
Execution 197ms
Transfer 149 KB
Unused 43%
Monthly Cost $3/mo
cdn-client.medium.com
Other
Optional
Execution 104ms
Transfer 5 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • cdn-client.medium.com adds 1219ms and costs ~$16/month
  • www.gstatic.com adds 629ms and costs ~$8/month
  • cdn-client.medium.com adds 512ms and costs ~$7/month
  • Unattributable adds 252ms and costs ~$3/month
  • medium.com adds 246ms and costs ~$3/month
  • medium.com adds 203ms and costs ~$3/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 1219ms 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 629ms 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

cdn-client.medium.com takes 512ms 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

Unattributable takes 252ms 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

medium.com takes 246ms 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

medium.com takes 203ms 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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