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https://getpocket.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
85
GRADE
B
FIX
2
REVIEW
5
PASS
6
INFO
2

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

Mobile Desktop
90
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
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.
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.

519 ms

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

1.38 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.

0.142

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

753 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.

1.39 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
6 PASS 5 REVIEW 2 FIX
D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (1.3 MiB of 1.3 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
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.

B
Page Weight Budget
1.3 MB transferred, 30 requests
REVIEW
1.3 MB transferred, 30 requests
Info::
Page weighs 2.2 MB (1.3 MB transferred)
Info::
30 HTTP requests
Info::
Estimated 0.28 g CO2 per page load
1.3 MB / 2.4 MB budget
1.3 MB transferred
30 requests
0.28 g CO2 per page load
Images 892.2 KiB 66%
JavaScript 331.6 KiB 24%
Fonts 107.4 KiB 8%
HTML 11.7 KiB 1%
CSS 10.9 KiB 1%
Other 5.3 KiB 0%
Other 684 B 0%
Other 684 B 0%
0 2.4 MB 4.9 MB
Under budget
C
Image Optimization
Action
7 images, 0 KB saveable
REVIEW
7 images, 0 KB saveable
Warning::
https://assets.getpocket.com/web-client/_next/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.getpocket.com/web-client/_next/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.getpocket.com/web-client/_next/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.getpocket.com/web-client/_next/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://assets.getpocket.com/web-client/_next/stat... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
7 images 892 KB
0 oversized -0 KB
6 legacy format
5 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Bundles
12 scripts, 146 KB unused
REVIEW
12 scripts, 146 KB unused
Warning::
https://assets.getpocket.com/web-client/_next/stat...: 71 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.getpocket.com/web-client/_next/stat...: 27 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.getpocket.com/web-client/_next/stat...: 26 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.getpocket.com/web-client/_next/stat...: 23 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 146 KB
146 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://assets.getpocket.com/web-client/_next/static/chunks/ff79cce69b3b9117.js71 KB71 KB (100%)✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/77ad7628c1b6eb7e.js66 KB27 KB (41%)✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/6f8cb0c8d2ade47c.js71 KB26 KB (37%)✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/76c9ff9f8653b887.js39 KB23 KB (59%)✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/dfec6f6a0df61587.js6 KB—✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/c7f7bf439df278d3.js30 KB—✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/e088e458ab4f0efd.js27 KB—✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-4d5a40aa852ef058.js4 KB—✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/a925f3dc4c63b2fa.js11 KB—✓3rd
https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-22f9b95002bfc33c.js4 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

C
Page Weight Inventory
Action
30 resources · 1.3 MB · 146 KB savings available
REVIEW
30 resources · 1.3 MB · 146 KB savings available
Warning::
Page weight 336 KB over 1MB target
Got: 1.3 MB Expected: ≤ 1 MB
Info::
~146 KB of savings available
Warning::
24 third-party resources (99% of weight)
Info::
3 resources over 200KB
30 resources · 1.3 MiB · 24 third-party 336.5 KiB over 1MB target
Image 66% · 896.9 KiB
JavaScript 24% · 331.6 KiB
Font 8% · 107.4 KiB
Document 1% · 11.7 KiB
CSS 1% · 10.9 KiB
Other 0% · 2.1 KiB

~146.0 KiB of savings available

Remove unused JavaScript: 146.0 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

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
107ms total JS execution
PASS
107ms total JS execution
Info::
Unattributable: 56ms CPU time
Info::
https://getpocket.com/home: 51ms CPU time
Warning::
Third-party scripts: 56ms (53% of total)

Main Thread Breakdown

Script Evaluation 47% Other 26% Script Parsing & Compilation 12% Style & Layout 11%
ScriptTotalScriptingParse/CompileParty
Unattributable56ms4ms0ms3rd
https://getpocket.com/home51ms3ms1ms1st
A+
Font Loading
2 fonts (107 KB)
PASS
2 fonts (107 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

107 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 519 ms LCP 1.4 shttps://assets.getpocket.com/web-ui/assets/Graphik-Regular-Web.e05a3b2ff4a3813954bcf8bdb83f9804.woff2Graphik-Regular-Web.e05... https://assets.getpocket.com/web-ui/assets/Graphik-Regular-Web.e05a3b2ff4a3813954bcf8bdb83f9804.woff2 — 36.2 KiB — 68 ms — font-display: swaphttps://assets.getpocket.com/web-ui/assets/Doyle-Medium.eb6ee0eb205e8467cb3b0e61191217b2.woff2Doyle-Medium.eb6ee0eb20... https://assets.getpocket.com/web-ui/assets/Doyle-Medium.eb6ee0eb205e8467cb3b0e61191217b2.woff2 — 71.2 KiB — 79 ms — font-display: swap
Graphik-Regular-Web.e05... woff2 swap
Size 36 KB
Load time 68 ms
Start 770 ms
Risk FOUT — text flashes from fallback to web font
Doyle-Medium.eb6ee0eb20... woff2 swap
Size 71 KB
Load time 79 ms
Start 770 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
Network Waterfall
30 requests over 1157ms
INFO
0 ms 500 ms 1.0 s FCP 519 ms LCP 1.4 shttps://getpocket.com// https://getpocket.com/ — 302 — 226 B — 175 ms — h2https://getpocket.com/en//en/ https://getpocket.com/en/ — 302 — 228 B — 82 ms — h2https://getpocket.com/waypoint/waypoint https://getpocket.com/waypoint — 307 — 282 B — 368 ms — h2https://getpocket.com/home/home https://getpocket.com/home — 200 — 11.7 KiB — 51 ms — h2https://assets.getpocket.com/web-client/_next/static/chunks/f421bff56e9ba7e2.cssassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/f421bff56e9ba7e2.css — 200 — 9.6 KiB — 62 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/85b2c0276c955df5.cssassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/85b2c0276c955df5.css — 200 — 1.3 KiB — 60 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/media/pocket-list.48a5f724.pngassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/media/pocket-list.48a5f724.png — 200 — 285.4 KiB — 112 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/media/pocket-your-way.72256db6.pngassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/media/pocket-your-way.72256db6.png — 200 — 299.1 KiB — 108 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/media/reading-nook.95c44724.pngassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/media/reading-nook.95c44724.png — 200 — 32.3 KiB — 60 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/media/save-button-doodle.c7f4139f.svgassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/media/save-button-doodle.c7f4139f.svg — 200 — 26.2 KiB — 78 ms — http/1.1https://getpocket.com/manifest.json/manifest.json https://getpocket.com/manifest.json — 200 — 684 B — 456 ms — h2https://assets.getpocket.com/web-client/_next/static/media/article-carousel.b0e94742.pngassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/media/article-carousel.b0e94742.png — 200 — 246.8 KiB — 66 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/dfec6f6a0df61587.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/dfec6f6a0df61587.js — 200 — 5.7 KiB — 24 ms — http/1.1data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%22292.…www.w3.org/2000/svg%22%20width=%222... data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20width=%22292.… — 200 — 0 B — 0 ms — datahttps://assets.getpocket.com/web-client/_next/static/chunks/c7f7bf439df278d3.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/c7f7bf439df278d3.js — 200 — 29.8 KiB — 23 ms — http/1.1https://assets.getpocket.com/web-ui/assets/Graphik-Regular-Web.e05a3b2ff4a3813954bcf8bdb83f9804.woff2assets.getpocket.com/web-ui/assets/... https://assets.getpocket.com/web-ui/assets/Graphik-Regular-Web.e05a3b2ff4a3813954bcf8bdb83f9804.woff2 — 200 — 36.2 KiB — 68 ms — http/1.1https://assets.getpocket.com/web-ui/assets/Doyle-Medium.eb6ee0eb205e8467cb3b0e61191217b2.woff2assets.getpocket.com/web-ui/assets/... https://assets.getpocket.com/web-ui/assets/Doyle-Medium.eb6ee0eb205e8467cb3b0e61191217b2.woff2 — 200 — 71.2 KiB — 79 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/77ad7628c1b6eb7e.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/77ad7628c1b6eb7e.js — 200 — 65.7 KiB — 38 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/6f8cb0c8d2ade47c.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/6f8cb0c8d2ade47c.js — 200 — 71.0 KiB — 25 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/e088e458ab4f0efd.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/e088e458ab4f0efd.js — 200 — 27.2 KiB — 21 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-4d5a40aa852ef058.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-4d5a40aa852ef058.js — 200 — 4.5 KiB — 36 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/a925f3dc4c63b2fa.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/a925f3dc4c63b2fa.js — 200 — 10.8 KiB — 30 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/ff79cce69b3b9117.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/ff79cce69b3b9117.js — 200 — 71.3 KiB — 32 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/76c9ff9f8653b887.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/76c9ff9f8653b887.js — 200 — 39.2 KiB — 31 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-22f9b95002bfc33c.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/chunks/turbopack-22f9b95002bfc33c.js — 200 — 4.5 KiB — 20 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_ssgManifest.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_ssgManifest.js — 200 — 710 B — 22 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_buildManifest.jsassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_buildManifest.js — 200 — 1.2 KiB — 22 ms — http/1.1https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_clientMiddlewareManifest.jsonassets.getpocket.com/web-client/_ne... https://assets.getpocket.com/web-client/_next/static/8k4-4Xw-VZLy-lEPIrEZw/_clientMiddlewareManifest.json — 200 — 684 B — 21 ms — http/1.1https://assets.getpocket.com/web-ui/assets/pocket-logo-light-mode.9a20614bbcbaf69b221df81a80daa73d.svgassets.getpocket.com/web-ui/assets/... https://assets.getpocket.com/web-ui/assets/pocket-logo-light-mode.9a20614bbcbaf69b221df81a80daa73d.svg — 200 — 2.4 KiB — 21 ms — http/1.1https://getpocket.com/favicon.ico/favicon.ico https://getpocket.com/favicon.ico — 200 — 4.6 KiB — 49 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
53% of JavaScript execution is third-party
First-party Third-party 56ms · 0KB · €1/mo
Unattributable
Other
Optional
Execution 56ms
Transfer 0 KB
Monthly Cost €1/mo

53% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

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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