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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
3
REVIEW
5
PASS
7
INFO
2

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

Mobile Desktop
58
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
79
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.
75
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.

4.68 s

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

7.90 s

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

117 ms

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

0.105

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

5.72 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.

8.39 s

Page Load Progression

951 ms
1.9 s
2.9 s
3.8 s
4.8 s
5.7 s
6.7 s
7.6 s
Checks
17
7 PASS 5 REVIEW 3 FIX
D
Third-Party Impact
Action
96% third-party, 0 ms blocking
FIX
96% third-party, 0 ms blocking
Warning::
Third-party code accounts for 96% of page weight (1.0 MiB of 1.0 MiB)
Info::
Third-party blocking time is low (0 ms)
96%
First-party Third-party
D
JS Bundles
Action
13 scripts, 326 KB unused
FIX
13 scripts, 326 KB unused
Warning::
https://shared.ydstatic.com/market/souti/web_dict/...: 248 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://shared.ydstatic.com/market/souti/web_dict/...: 40 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://shared.ydstatic.com/market/souti/web_dict/...: 38 KB unused (97%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 326 KB
326 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.js383 KB248 KB (65%)✓3rd
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/d123544.js98 KB40 KB (41%)✓3rd
https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.js39 KB38 KB (97%)✓3rd
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/c2d2466.js2 KB—✓3rd
https://shared.ydstatic.com/js/yadk/1.1.3.js4 KB—✓3rd
https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/rem.js1 KB—✓3rd
https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.js0 KB—✓3rd
https://shared.ydstatic.com/dict/yd_products/online/1.1.2/dist/lib/yd-nav.js15 KB—✓3rd
https://shared.ydstatic.com/js/rlog/v1.js3 KB—✓3rd
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.js27 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

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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Page Weight Budget
1.0 MB transferred, 34 requests
REVIEW
1.0 MB transferred, 34 requests
Info::
Page weighs 2.8 MB (1.0 MB transferred)
Warning::
JavaScript is 611 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 611 KB
Info::
34 HTTP requests
Info::
Estimated 0.22 g CO2 per page load
1.0 MB / 2.4 MB budget
1.0 MB transferred
34 requests
0.22 g CO2 per page load
JavaScript 611.0 KiB 57%
Images 229.7 KiB 21%
Fonts 181.7 KiB 17%
HTML 43.8 KiB 4%
CSS 4.9 KiB 0%
Other 1.9 KiB 0%
Other 1.7 KiB 0%
0 2.4 MB 4.9 MB
Under budget

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
Image Optimization
Action
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Warning::
https://shared.ydstatic.com/market/souti/web_dict/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 230 KB
0 oversized -0 KB
6 legacy format
2 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

B
JS Execution Cost
924ms total JS execution
REVIEW
924ms total JS execution
Warning::
https://shared.ydstatic.com/market/souti/web_dict/...: 440ms CPU time
Info::
https://youdao.com/m/: 202ms CPU time
Info::
Unattributable: 167ms CPU time
Info::
https://shared.ydstatic.com/market/souti/web_dict/...: 115ms CPU time
Warning::
Third-party scripts: 721ms (78% of total)

Main Thread Breakdown

Script Evaluation 46% Other 18% Script Parsing & Compilation 17% Style & Layout 13% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.js440ms411ms8ms3rd
https://youdao.com/m/202ms4ms1ms1st
Unattributable167ms5ms0ms3rd
https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.js115ms1ms114ms3rd
B
Page Weight Inventory
34 resources · 1.0 MB · 326 KB savings available
REVIEW
34 resources · 1.0 MB · 326 KB savings available
Warning::
Page weight 51 KB over 1MB target
Got: 1.0 MB Expected: ≤ 1 MB
Info::
~326 KB of savings available
Warning::
32 third-party resources (96% of weight)
Info::
1 resources over 200KB
34 resources · 1.0 MiB · 32 third-party 50.7 KiB over 1MB target
JavaScript 57% · 611.0 KiB
Image 22% · 231.4 KiB
Font 17% · 181.7 KiB
Document 4% · 43.8 KiB
CSS 0% · 4.9 KiB
Other 0% · 1.9 KiB

~326.3 KiB of savings available

Remove unused JavaScript: 326.3 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+
Font Loading
2 fonts (182 KB)
PASS
2 fonts (182 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

182 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 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.7 s LCP 7.9 shttps://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttff90ef9f73a4c3bb6c686731... https://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttf — 153.7 KiB — 318 ms — font-display: swaphttps://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/fonts/element-icons.313f7da.woffelement-icons.313f7da.woff https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/fonts/element-icons.313f7da.woff — 28.0 KiB — 9 ms — font-display: swap
f90ef9f73a4c3bb6c686731... ttf swap
Size 154 KB
Load time 318 ms
Start 2.0 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
element-icons.313f7da.woff woff swap
Size 28 KB
Load time 9 ms
Start 2.1 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
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 ~131 KB and ~262 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
9 hints, 0 missing preconnects
PASS
9 hints, 0 missing preconnects
Info::
Page uses 9 resource hint(s)

Current Resource Hints

preconnect
—
preload
9
dns-prefetch
—
prefetch
—

9 resource hints configured

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
Network Waterfall
34 requests over 5804ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.7 s LCP 7.9 shttps://youdao.com// https://youdao.com/ — 302 — 212 B — 724 ms — http/1.1https://youdao.com/m//m/ https://youdao.com/m/ — 200 — 43.8 KiB — 594 ms — http/1.1https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.cssshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.css — 200 — 4.9 KiB — 815 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.js — 200 — 393 B — 815 ms — h2https://shared.ydstatic.com/js/rlog/v1.jsshared.ydstatic.com/js/rlog/v1.js https://shared.ydstatic.com/js/rlog/v1.js — 200 — 2.9 KiB — 839 ms — h2https://shared.ydstatic.com/dict/yd_products/online/1.1.2/dist/lib/yd-nav.jsshared.ydstatic.com/dict/yd_product... https://shared.ydstatic.com/dict/yd_products/online/1.1.2/dist/lib/yd-nav.js — 200 — 15.2 KiB — 825 ms — h2https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.js — 200 — 39.4 KiB — 818 ms — h2https://shared.ydstatic.com/js/yadk/1.1.3.jsshared.ydstatic.com/js/yadk/1.1.3.j... https://shared.ydstatic.com/js/yadk/1.1.3.js — 200 — 4.0 KiB — 826 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/rem.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/rem.js — 200 — 909 B — 837 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/c2d2466.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/c2d2466.js — 200 — 1.7 KiB — 834 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/d123544.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/d123544.js — 200 — 97.8 KiB — 882 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.js — 200 — 382.6 KiB — 877 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.js — 200 — 27.1 KiB — 840 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/0c94174.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/0c94174.js — 200 — 16.7 KiB — 838 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/88b4b21.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/88b4b21.js — 200 — 17.8 KiB — 863 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/5d59710.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/5d59710.js — 200 — 4.4 KiB — 851 ms — h2https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f1c703706cf8c4c39a7520.pngydlunacommon-cdn.nosdn.127.net/cb77... https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f1c703706cf8c4c39a7520.png — 200 — 74.0 KiB — 951 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/m-home-logo.2c56580.pngshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/m-home-logo.2c56580.png — 200 — 2.0 KiB — 28 ms — h2https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=pageview&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222370&_nref=&_nurl=https%3A%2F%2Fyoudao.com%2Fm%2F&_nres=412x823&_nlmf=1776818222&_njve=0&_nchr=utf-8&_nfrg=rlogs.youdao.com/rlog.php?_npid=dic... https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=pageview&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222370&_nref=&_nurl=https%3A%2F%2Fyoudao.com%2Fm%2F&_nres=412x823&_nlmf=1776818222&_njve=0&_nchr=utf-8&_nfrg= — 200 — 164 B — 1.3 s — h2data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAALCAYAAABPhbxiAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAALCAYAAABPhbxiAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAMCAYAAABSgIzaAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAMCAYAAABSgIzaAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datahttps://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/banner_bg.9263a96.pngshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/banner_bg.9263a96.png — 200 — 153.3 KiB — 6 ms — h2data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datahttps://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttfydlunacommon-cdn.nosdn.127.net/f90e... https://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttf — 200 — 153.7 KiB — 318 ms — h2https://dict.youdao.com/suggest?num=5&ver=3.0&doctype=json&cache=false&le=endict.youdao.com/suggest?num=5&ver=3... https://dict.youdao.com/suggest?num=5&ver=3.0&doctype=json&cache=false&le=en — 200 — 476 B — 2.1 s — http/1.1https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222554&_nhrf=dict_result_en_mrlogs.youdao.com/rlog.php?_npid=dic... https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222554&_nhrf=dict_result_en_m — 200 — 162 B — 1.1 s — h2https://api-overmind.youdao.com/openapi/get/luna/dict/dict-common-config/prod/wapDictMainPageBannerapi-overmind.youdao.com/openapi/get... https://api-overmind.youdao.com/openapi/get/luna/dict/dict-common-config/prod/wapDictMainPageBanner — 200 — 735 B — 2.0 s — http/1.1data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — data
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s FCP 4.7 s LCP 7.9 shttps://youdao.com// https://youdao.com/ — 302 — 212 B — 724 ms — http/1.1https://youdao.com/m//m/ https://youdao.com/m/ — 200 — 43.8 KiB — 594 ms — http/1.1https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.cssshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.css — 200 — 4.9 KiB — 815 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/bury.js — 200 — 393 B — 815 ms — h2https://shared.ydstatic.com/js/rlog/v1.jsshared.ydstatic.com/js/rlog/v1.js https://shared.ydstatic.com/js/rlog/v1.js — 200 — 2.9 KiB — 839 ms — h2https://shared.ydstatic.com/dict/yd_products/online/1.1.2/dist/lib/yd-nav.jsshared.ydstatic.com/dict/yd_product... https://shared.ydstatic.com/dict/yd_products/online/1.1.2/dist/lib/yd-nav.js — 200 — 15.2 KiB — 825 ms — h2https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/swiper/swiper-bundle.min.js — 200 — 39.4 KiB — 818 ms — h2https://shared.ydstatic.com/js/yadk/1.1.3.jsshared.ydstatic.com/js/yadk/1.1.3.j... https://shared.ydstatic.com/js/yadk/1.1.3.js — 200 — 4.0 KiB — 826 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/rem.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/1.0.0/rem.js — 200 — 909 B — 837 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/c2d2466.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/c2d2466.js — 200 — 1.7 KiB — 834 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/d123544.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/d123544.js — 200 — 97.8 KiB — 882 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/a37463c.js — 200 — 382.6 KiB — 877 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/b3a6af8.js — 200 — 27.1 KiB — 840 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/0c94174.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/0c94174.js — 200 — 16.7 KiB — 838 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/88b4b21.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/88b4b21.js — 200 — 17.8 KiB — 863 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/5d59710.jsshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/5d59710.js — 200 — 4.4 KiB — 851 ms — h2https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f1c703706cf8c4c39a7520.pngydlunacommon-cdn.nosdn.127.net/cb77... https://ydlunacommon-cdn.nosdn.127.net/cb776e6995f1c703706cf8c4c39a7520.png — 200 — 74.0 KiB — 951 ms — h2https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/m-home-logo.2c56580.pngshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/img/m-home-logo.2c56580.png — 200 — 2.0 KiB — 28 ms — h2https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=pageview&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222370&_nref=&_nurl=https%3A%2F%2Fyoudao.com%2Fm%2F&_nres=412x823&_nlmf=1776818222&_njve=0&_nchr=utf-8&_nfrg=rlogs.youdao.com/rlog.php?_npid=dic... https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=pageview&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222370&_nref=&_nurl=https%3A%2F%2Fyoudao.com%2Fm%2F&_nres=412x823&_nlmf=1776818222&_njve=0&_nchr=utf-8&_nfrg= — 200 — 164 B — 1.3 s — h2data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAAAXNSR0IArs4c6QAAAARzQklUCAgIC… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABgAAAAYCAYAAADgdz34AAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... 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h2data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datahttps://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttfydlunacommon-cdn.nosdn.127.net/f90e... https://ydlunacommon-cdn.nosdn.127.net/f90ef9f73a4c3bb6c686731ca109e7e2.ttf — 200 — 153.7 KiB — 318 ms — h2https://dict.youdao.com/suggest?num=5&ver=3.0&doctype=json&cache=false&le=endict.youdao.com/suggest?num=5&ver=3... https://dict.youdao.com/suggest?num=5&ver=3.0&doctype=json&cache=false&le=en — 200 — 476 B — 2.1 s — http/1.1https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222554&_nhrf=dict_result_en_mrlogs.youdao.com/rlog.php?_npid=dic... https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818222554&_nhrf=dict_result_en_m — 200 — 162 B — 1.1 s — h2https://api-overmind.youdao.com/openapi/get/luna/dict/dict-common-config/prod/wapDictMainPageBannerapi-overmind.youdao.com/openapi/get... https://api-overmind.youdao.com/openapi/get/luna/dict/dict-common-config/prod/wapDictMainPageBanner — 200 — 735 B — 2.0 s — http/1.1data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAACXBIWXMAABYlAAAWJQFJUiTwAAAAA… — 200 — 0 B — 0 ms — datahttps://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/fonts/element-icons.313f7da.woffshared.ydstatic.com/market/souti/we... https://shared.ydstatic.com/market/souti/web_dict/online/3.0.4/dist/client/fonts/element-icons.313f7da.woff — 200 — 28.0 KiB — 9 ms — h2https://shared-https.ydstatic.com/images/favicon.icoshared-https.ydstatic.com/images/fa... https://shared-https.ydstatic.com/images/favicon.ico — 200 — 1.7 KiB — 803 ms — h2https://foundation.youdao.com/ip/isforeignfoundation.youdao.com/ip/isforeign https://foundation.youdao.com/ip/isforeign — 200 — 504 B — 1.5 s — http/1.1https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818226086&_nhrf=home_page_mrlogs.youdao.com/rlog.php?_npid=dic... https://rlogs.youdao.com/rlog.php?_npid=dictweb&_ncat=event&_ncoo=1910359132.9702733&_nssn=NULL&_nver=1.2.0&_ntms=1776818226086&_nhrf=home_page_m — 200 — 64 B — 189 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
78% of JavaScript execution is third-party
First-party Third-party 721ms · 410KB · ¥36/mo
shared.ydstatic.com
Other
Costly
Execution 440ms
Transfer 27 KB
Monthly Cost ¥22/mo
Unattributable
Other
Optional
Execution 167ms
Transfer 0 KB
Monthly Cost ¥8/mo
shared.ydstatic.com
Other
Optional
Execution 115ms
Transfer 383 KB
Unused 65%
Monthly Cost ¥6/mo

These scripts may cost more than they're worth

  • shared.ydstatic.com adds 440ms and costs ~¥22/month

78% 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

shared.ydstatic.com takes 440ms 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

65% of shared.ydstatic.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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