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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
47
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.19 s

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

2.86 s

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

353 ms

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

0.299

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

2.27 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.86 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
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
D
JS Bundles
Action
57 scripts, 479 KB unused
FIX
57 scripts, 479 KB unused
Warning::
https://abs.twimg.com/responsive-web/client-web/ma...: 146 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://abs.twimg.com/responsive-web/client-web/ve...: 102 KB unused (30%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://abs.twimg.com/responsive-web/client-web/mo...: 75 KB unused (99%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://accounts.google.com/gsi/client: 69 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://abs.twimg.com/responsive-web/client-web/i1...: 42 KB unused (23%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 479 KB
479 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.js287 KB146 KB (51%)✓3rd
https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.js346 KB102 KB (30%)✓3rd
https://abs.twimg.com/responsive-web/client-web/modules.audio.184d9faa.js76 KB75 KB (99%)✓3rd
https://accounts.google.com/gsi/client96 KB69 KB (72%)✓3rd
https://abs.twimg.com/responsive-web/client-web/i18n/en.f19ad19a.js180 KB42 KB (23%)✓3rd
https://abs.twimg.com/responsive-web/client-web/loader.AppModules.219d882a.js33 KB25 KB (75%)✓3rd
https://abs.twimg.com/responsive-web/client-web/shared~bundle.AudioSpaceDetail~bundle.AudioSpaceDiscovery~bundle.AudioSpacebarScreen~bundle.Birdwatch~bundle..2150637a.js23 KB20 KB (90%)✓3rd
https://abs.twimg.com/responsive-web/client-web/icons.29.93c0a75a.js7 KB—✓3rd
https://abs.twimg.com/responsive-web/client-web/icons.10.f9bc985a.js5 KB—✓3rd
https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutHome.888e533a.js7 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
77 resources · 1.7 MB · 479 KB savings available
FIX
77 resources · 1.7 MB · 479 KB savings available
Warning::
Page weight 746 KB over 1MB target
Got: 1.7 MB Expected: ≤ 1 MB
Info::
~479 KB of savings available
Warning::
76 third-party resources (100% of weight)
Info::
2 resources over 200KB
77 resources · 1.7 MiB · 76 third-party 745.5 KiB over 1MB target
JavaScript 85% · 1.5 MiB
Font 10% · 171.3 KiB
Document 4% · 73.4 KiB
Other 1% · 17.9 KiB
Image 0% · 5.6 KiB
CSS 0% · 643 B

~479.3 KiB of savings available

Remove unused JavaScript: 479.3 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, must-revalidate, pre-check=0, post-check=0
Info::
Last-Modified header present
Cache-Control

no-cache, no-store, must-revalidate, pre-check=0, post-check=0

DirectiveValueMeaning
no-cache—Cache but always revalidate first
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
pre-check0
post-check0
C
Page Weight Budget
Action
1.7 MB transferred, 77 requests
REVIEW
1.7 MB transferred, 77 requests
Info::
Page weighs 5.5 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::
77 HTTP requests
Info::
Estimated 0.36 g CO2 per page load
1.7 MB / 2.4 MB budget
1.7 MB transferred
77 requests
0.36 g CO2 per page load
JavaScript 1.5 MiB 85%
Fonts 171.3 KiB 10%
HTML 65.5 KiB 4%
Other 12.7 KiB 1%
Other 10.0 KiB 1%
Other 7.9 KiB 0%
Images 751 B 0%
CSS 643 B 0%
Other 0 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
1468ms total JS execution
REVIEW
1468ms total JS execution
Warning::
https://abs.twimg.com/responsive-web/client-web/ma...: 810ms CPU time
Warning::
https://abs.twimg.com/responsive-web/client-web/ve...: 507ms CPU time
Info::
Unattributable: 92ms CPU time
Info::
https://x.com/: 58ms CPU time
Warning::
Third-party scripts: 1468ms (100% of total)

Main Thread Breakdown

Script Evaluation 78% Script Parsing & Compilation 8% Other 8%
ScriptTotalScriptingParse/CompileParty
https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.js810ms741ms23ms3rd
https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.js507ms412ms36ms3rd
Unattributable92ms4ms0ms3rd
https://x.com/58ms11ms12ms3rd
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
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 1 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
Font Loading
4 fonts (171 KB)
PASS
4 fonts (171 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

171 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 2.9 shttps://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2Chirp-Regular.80fda27a.... https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2 — 43.9 KiB — 108 ms — font-display: swaphttps://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2Chirp-Bold.ebb56aba.woff2 https://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2 — 44.3 KiB — 107 ms — font-display: swaphttps://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2Chirp-Medium.f8e2739a.w... https://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2 — 44.0 KiB — 111 ms — font-display: swaphttps://abs.twimg.com/fonts/v1/chirp-extended-heavy-web.woff2chirp-extended-heavy-we... https://abs.twimg.com/fonts/v1/chirp-extended-heavy-web.woff2 — 39.1 KiB — 33 ms — font-display: swap
Chirp-Regular.80fda27a.... woff2 swap
Size 44 KB
Load time 108 ms
Start 371 ms
Risk FOUT — text flashes from fallback to web font
Chirp-Bold.ebb56aba.woff2 woff2 swap
Size 44 KB
Load time 107 ms
Start 372 ms
Risk FOUT — text flashes from fallback to web font
Chirp-Medium.f8e2739a.w... woff2 swap
Size 44 KB
Load time 111 ms
Start 372 ms
Risk FOUT — text flashes from fallback to web font
chirp-extended-heavy-we... woff2 swap
Size 39 KB
Load time 33 ms
Start 2.1 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)
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
77 requests over 2451ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 2.9 shttps://twitter.com// https://twitter.com/ — 301 — 7.9 KiB — 179 ms — h2https://x.com/x.com/ https://x.com/ — 200 — 65.5 KiB — 363 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2 — 200 — 43.9 KiB — 108 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2 — 200 — 44.3 KiB — 107 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2 — 200 — 44.0 KiB — 111 ms — h2https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.js — 200 — 345.9 KiB — 141 ms — h2https://abs.twimg.com/responsive-web/client-web/i18n/en.f19ad19a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/i18n/en.f19ad19a.js — 200 — 180.1 KiB — 136 ms — h2https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.js — 200 — 287.0 KiB — 132 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutShell.d6e583ca.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutShell.d6e583ca.js — 200 — 20.1 KiB — 95 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutRoutes.5381a15a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutRoutes.5381a15a.js — 200 — 7.2 KiB — 70 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutHome.888e533a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutHome.888e533a.js — 200 — 7.4 KiB — 101 ms — h2https://x.com/manifest.jsonx.com/manifest.json https://x.com/manifest.json — 200 — 7.9 KiB — 162 ms — h2https://abs-0.twimg.com/emoji/v2/svg/26a0.svgabs-0.twimg.com/emoji/v2/svg/26a0.s... https://abs-0.twimg.com/emoji/v2/svg/26a0.svg — 200 — 751 B — 12 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.8.fa9011ea.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.8.fa9011ea.js — 200 — 9.2 KiB — 30 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.15.b08c9c9a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.15.b08c9c9a.js — 200 — 6.6 KiB — 31 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.9.d0d9163a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.9.d0d9163a.js — 200 — 8.4 KiB — 34 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.22.a1035d5a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.22.a1035d5a.js — 200 — 8.5 KiB — 49 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.18.ead3a9da.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.18.ead3a9da.js — 200 — 7.6 KiB — 46 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.7.cac73cea.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.7.cac73cea.js — 200 — 8.3 KiB — 32 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.1.d09dd5aa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.1.d09dd5aa.js — 200 — 5.6 KiB — 41 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.5.214c465a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.5.214c465a.js — 200 — 6.5 KiB — 40 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.24.9ebc84fa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.24.9ebc84fa.js — 200 — 6.0 KiB — 38 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.4.a032591a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.4.a032591a.js — 200 — 7.4 KiB — 33 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.14.a210b5fa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.14.a210b5fa.js — 200 — 6.0 KiB — 36 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.13.027fab8a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.13.027fab8a.js — 200 — 5.8 KiB — 34 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.25.b2e7018a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.25.b2e7018a.js — 200 — 5.8 KiB — 40 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.19.e81232ba.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.19.e81232ba.js — 200 — 7.3 KiB — 41 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.6.6693286a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.6.6693286a.js — 200 — 6.4 KiB — 43 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.3.45196c7a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.3.45196c7a.js — 200 — 6.7 KiB — 46 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.21.7be58aca.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.21.7be58aca.js — 200 — 5.4 KiB — 53 ms — h2
0 ms 1.0 s 2.0 s 3.0 s FCP 1.2 s LCP 2.9 shttps://twitter.com// https://twitter.com/ — 301 — 7.9 KiB — 179 ms — h2https://x.com/x.com/ https://x.com/ — 200 — 65.5 KiB — 363 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Regular.80fda27a.woff2 — 200 — 43.9 KiB — 108 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Bold.ebb56aba.woff2 — 200 — 44.3 KiB — 107 ms — h2https://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2abs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/Chirp-Medium.f8e2739a.woff2 — 200 — 44.0 KiB — 111 ms — h2https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/vendor.7ef16aaa.js — 200 — 345.9 KiB — 141 ms — h2https://abs.twimg.com/responsive-web/client-web/i18n/en.f19ad19a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/i18n/en.f19ad19a.js — 200 — 180.1 KiB — 136 ms — h2https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/main.52d81e4a.js — 200 — 287.0 KiB — 132 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutShell.d6e583ca.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutShell.d6e583ca.js — 200 — 20.1 KiB — 95 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutRoutes.5381a15a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutRoutes.5381a15a.js — 200 — 7.2 KiB — 70 ms — h2https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutHome.888e533a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/bundle.LoggedOutHome.888e533a.js — 200 — 7.4 KiB — 101 ms — h2https://x.com/manifest.jsonx.com/manifest.json https://x.com/manifest.json — 200 — 7.9 KiB — 162 ms — h2https://abs-0.twimg.com/emoji/v2/svg/26a0.svgabs-0.twimg.com/emoji/v2/svg/26a0.s... https://abs-0.twimg.com/emoji/v2/svg/26a0.svg — 200 — 751 B — 12 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.8.fa9011ea.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.8.fa9011ea.js — 200 — 9.2 KiB — 30 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.15.b08c9c9a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.15.b08c9c9a.js — 200 — 6.6 KiB — 31 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.9.d0d9163a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.9.d0d9163a.js — 200 — 8.4 KiB — 34 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.22.a1035d5a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.22.a1035d5a.js — 200 — 8.5 KiB — 49 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.18.ead3a9da.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.18.ead3a9da.js — 200 — 7.6 KiB — 46 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.7.cac73cea.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.7.cac73cea.js — 200 — 8.3 KiB — 32 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.1.d09dd5aa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.1.d09dd5aa.js — 200 — 5.6 KiB — 41 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.5.214c465a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.5.214c465a.js — 200 — 6.5 KiB — 40 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.24.9ebc84fa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.24.9ebc84fa.js — 200 — 6.0 KiB — 38 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.4.a032591a.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.4.a032591a.js — 200 — 7.4 KiB — 33 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.14.a210b5fa.jsabs.twimg.com/responsive-web/client... https://abs.twimg.com/responsive-web/client-web/icons.14.a210b5fa.js — 200 — 6.0 KiB — 36 ms — h2https://abs.twimg.com/responsive-web/client-web/icons.13.027fab8a.jsabs.twimg.com/responsive-web/client... 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 1468ms · 698KB · €16/mo
abs.twimg.com
Other
Costly
Execution 810ms
Transfer 287 KB
Unused 51%
Monthly Cost €9/mo
abs.twimg.com
Other
Costly
Execution 507ms
Transfer 346 KB
Unused 30%
Monthly Cost €6/mo
Unattributable
Other
Optional
Execution 92ms
Transfer 0 KB
Monthly Cost €1/mo
x.com
Other
Optional
Execution 58ms
Transfer 66 KB
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • abs.twimg.com adds 810ms and costs ~€9/month
  • abs.twimg.com adds 507ms and costs ~€6/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

abs.twimg.com takes 810ms 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

51% of abs.twimg.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

abs.twimg.com takes 507ms 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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