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https://altavista.com

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
2
REVIEW
2
PASS
9
INFO
2

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

Mobile Desktop
73
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
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.
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.

2.10 s

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

2.62 s

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

2 ms

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

0.000

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

2.37 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.

2.66 s

Page Load Progression

645 ms
1.3 s
1.9 s
2.6 s
3.2 s
3.9 s
4.5 s
5.2 s
Checks
15
9 PASS 2 REVIEW 2 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 (960.2 KiB of 960.5 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
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-store
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store

DirectiveValueMeaning
no-store—Never cache this response
B
JS Bundles
6 scripts, 92 KB unused
REVIEW
6 scripts, 92 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-40HG...: 63 KB unused (40%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://s.yimg.com/oa/consent.js: 30 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 92 KB
92 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-40HG6NTJFD157 KB63 KB (40%)✓3rd
https://s.yimg.com/oa/consent.js49 KB30 KB (61%)✓3rd
https://s.yimg.com/pv/static/lib/assetManager_85593b53b1f4d56903724fa32149d549_51b5.js2 KB—✓3rd
https://s.yimg.com/zz/combo?pv/static/lib/after_4f4832e91888c587903e7c1074eb5f7a_1aa6.js&pv/static/lib/anim_110e9ca560d86d559315a6236b6bb682_2a30.js&pv/static/lib/bidi-sbx_f554a98ebfc1c738236bf95f723623c7_286c.js&pv/static/lib/cookie_e099f8ae69f8dd714f4273297e7bd8c1_138e.js&pv/static/lib/dom_e22c65321f0d4b0b20ca68d8ffda1f5b_289f.js&pv/static/lib/event_e76403bc2911430fcb9d4a193327ee23_184f.js&pv/static/lib/native-dropdown_f7617420968ce6acd190f5cbbf9a6f29_ece.js&pv/static/lib/native-retina-identifier_6fc6a1c453ffb880a6918177201efe5b_9dc.js&pv/static/lib/plugin_bea2ce80bae085464b528eef745ed04d_2a5d.js&pv/static/lib/ua_f27fb96cc53bb8fe67fe8c38f59acca1_3397.js&pv/static/lib/util_df59a873a5b0910536d5fd5c6a99b022_1a09.js10 KB—✓3rd
https://s.yimg.com/zz/combo?pv/static/lib/native-browser-extension-promotion_d21586e4659c58e4f08a20ce594a0917_4dda.js&pv/static/lib/native-browser-extension-promotion-chrome_3ef1fdae81f3182b7b2ad32c074d01dd_1438.js4 KB—✓3rd
https://s.yimg.com/zz/combo?pv/static/lib/analytics3_70431f41b625c7e11b1a69de45b10c88_107ac.js23 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

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Page Weight Budget
961 KB transferred, 23 requests
PASS
961 KB transferred, 23 requests
Info::
Page weighs 1.6 MB (961 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.20 g CO2 per page load
961 KB / 2.4 MB budget
961 KB transferred
23 requests
0.20 g CO2 per page load
Other 493.6 KiB 51%
JavaScript 244.4 KiB 25%
Fonts 127.1 KiB 13%
HTML 49.1 KiB 5%
CSS 29.3 KiB 3%
Images 12.8 KiB 1%
Other 3.7 KiB 0%
Other 549 B 0%
0 2.4 MB 4.9 MB
Under budget
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 13 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
299ms total JS execution
PASS
299ms total JS execution
Info::
https://search.yahoo.com/?fr=altavista: 115ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-40HG...: 102ms CPU time
Info::
Unattributable: 82ms CPU time
Warning::
Third-party scripts: 299ms (100% of total)

Main Thread Breakdown

Script Evaluation 40% Other 28% Style & Layout 15% Script Parsing & Compilation 10% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://search.yahoo.com/?fr=altavista115ms16ms8ms3rd
https://www.googletagmanager.com/gtag/js?id=G-40HG6NTJFD102ms85ms16ms3rd
Unattributable82ms2ms0ms3rd
A+
Font Loading
2 fonts (127 KB)
PASS
2 fonts (127 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

127 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 1.5 s 2.0 s 2.5 s FCP 2.1 s LCP 2.6 shttps://s.yimg.com/pv/static/font/search/Roboto-Regular-202103020707.woff2Roboto-Regular-20210302... https://s.yimg.com/pv/static/font/search/Roboto-Regular-202103020707.woff2 — 63.6 KiB — 13 ms — font-display: swaphttps://s.yimg.com/pv/static/font/search/Roboto-Bold-202103020707.woff2Roboto-Bold-20210302070... https://s.yimg.com/pv/static/font/search/Roboto-Bold-202103020707.woff2 — 63.5 KiB — 7 ms — font-display: swap
Roboto-Regular-20210302... woff2 swap
Size 64 KB
Load time 13 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
Roboto-Bold-20210302070... woff2 swap
Size 64 KB
Load time 7 ms
Start 2.2 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)
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
Page Weight Inventory
23 resources · 961 KB · 92 KB savings available
PASS
23 resources · 961 KB · 92 KB savings available
Info::
Within 1MB page-weight target
Got: 961 KB
Info::
~92 KB of savings available
Warning::
22 third-party resources (100% of weight)
23 resources · 960.5 KiB · 22 third-party Within 1MB page-weight target
Media 51% · 493.6 KiB
JavaScript 25% · 244.4 KiB
Font 13% · 127.1 KiB
Document 5% · 50.3 KiB
CSS 3% · 29.3 KiB
Image 2% · 15.3 KiB
Other 0% · 549 B

~92.3 KiB of savings available

Remove unused JavaScript: 92.3 KiB
Network Waterfall
23 requests over 2856ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 2.1 s LCP 2.6 shttps://altavista.com// https://altavista.com/ — 301 — 328 B — 603 ms — h2http://www.altavista.com/www.altavista.com/ http://www.altavista.com/ — 307 — 0 B — 2 ms — http/1.1https://www.altavista.com/www.altavista.com/ https://www.altavista.com/ — 301 — 896 B — 915 ms — h2https://search.yahoo.com/?fr=altavistasearch.yahoo.com/?fr=altavista https://search.yahoo.com/?fr=altavista — 200 — 42.5 KiB — 601 ms — h2https://s.yimg.com/zz/combo?pv/static/lib/syc-startpage-us_4fbabf81dfb611a6cb4950a897989b9d.csss.yimg.com/zz/combo?pv/static/lib/s... https://s.yimg.com/zz/combo?pv/static/lib/syc-startpage-us_4fbabf81dfb611a6cb4950a897989b9d.css — 200 — 29.3 KiB — 18 ms — h2https://s.yimg.com/oa/consent.jss.yimg.com/oa/consent.js https://s.yimg.com/oa/consent.js — 200 — 49.1 KiB — 21 ms — h2https://s.yimg.com/pv/static/lib/assetManager_85593b53b1f4d56903724fa32149d549_51b5.jss.yimg.com/pv/static/lib/assetManag... https://s.yimg.com/pv/static/lib/assetManager_85593b53b1f4d56903724fa32149d549_51b5.js — 200 — 2.0 KiB — 7 ms — h2https://s.yimg.com/pv/static/img/b2c-yahoo-startpage-logo-1x-202208151650.pngs.yimg.com/pv/static/img/b2c-yahoo-... https://s.yimg.com/pv/static/img/b2c-yahoo-startpage-logo-1x-202208151650.png — 200 — 3.4 KiB — 6 ms — h2https://s.yimg.com/pv/static/img/b2c_startpage_simple_1x-1663308366003.min.pngs.yimg.com/pv/static/img/b2c_startp... https://s.yimg.com/pv/static/img/b2c_startpage_simple_1x-1663308366003.min.png — 200 — 5.6 KiB — 7 ms — h2https://s.yimg.com/pv/static/font/search/Roboto-Regular-202103020707.woff2s.yimg.com/pv/static/font/search/Ro... https://s.yimg.com/pv/static/font/search/Roboto-Regular-202103020707.woff2 — 200 — 63.6 KiB — 13 ms — h2https://s.yimg.com/pv/static/misc/voice-start-202105050733.wavs.yimg.com/pv/static/misc/voice-sta... https://s.yimg.com/pv/static/misc/voice-start-202105050733.wav — 206 — 185.1 KiB — 18 ms — h2https://s.yimg.com/pv/static/misc/voice-result-202105050733.wavs.yimg.com/pv/static/misc/voice-res... https://s.yimg.com/pv/static/misc/voice-result-202105050733.wav — 206 — 78.7 KiB — 20 ms — h2https://s.yimg.com/pv/static/misc/voice-error-202105050733.wavs.yimg.com/pv/static/misc/voice-err... https://s.yimg.com/pv/static/misc/voice-error-202105050733.wav — 206 — 83.6 KiB — 23 ms — h2https://s.yimg.com/pv/static/misc/voice-close-202105050733.wavs.yimg.com/pv/static/misc/voice-clo... https://s.yimg.com/pv/static/misc/voice-close-202105050733.wav — 206 — 146.2 KiB — 34 ms — h2https://s.yimg.com/zz/combo?pv/static/lib/after_4f4832e91888c587903e7c1074eb5f7a_1aa6.js&pv/static/lib/anim_110e9ca560d86d559315a6236b6bb682_2a30.js&pv/static/lib/bidi-sbx_f554a98ebfc1c738236bf95f723623c7_286c.js&pv/static/lib/cookie_e099f8ae69f8dd714f4273297e7bd8c1_138e.js&pv/static/lib/dom_e22c65321f0d4b0b20ca68d8ffda1f5b_289f.js&pv/static/lib/event_e76403bc2911430fcb9d4a193327ee23_184f.js&pv/static/lib/native-dropdown_f7617420968ce6acd190f5cbbf9a6f29_ece.js&pv/static/lib/native-retina-identifier_6fc6a1c453ffb880a6918177201efe5b_9dc.js&pv/static/lib/plugin_bea2ce80bae085464b528eef745ed04d_2a5d.js&pv/static/lib/ua_f27fb96cc53bb8fe67fe8c38f59acca1_3397.js&pv/static/lib/util_df59a873a5b0910536d5fd5c6a99b022_1a09.jss.yimg.com/zz/combo?pv/static/lib/a... https://s.yimg.com/zz/combo?pv/static/lib/after_4f4832e91888c587903e7c1074eb5f7a_1aa6.js&pv/static/lib/anim_110e9ca560d86d559315a6236b6bb682_2a30.js&pv/static/lib/bidi-sbx_f554a98ebfc1c738236bf95f723623c7_286c.js&pv/static/lib/cookie_e099f8ae69f8dd714f4273297e7bd8c1_138e.js&pv/static/lib/dom_e22c65321f0d4b0b20ca68d8ffda1f5b_289f.js&pv/static/lib/event_e76403bc2911430fcb9d4a193327ee23_184f.js&pv/static/lib/native-dropdown_f7617420968ce6acd190f5cbbf9a6f29_ece.js&pv/static/lib/native-retina-identifier_6fc6a1c453ffb880a6918177201efe5b_9dc.js&pv/static/lib/plugin_bea2ce80bae085464b528eef745ed04d_2a5d.js&pv/static/lib/ua_f27fb96cc53bb8fe67fe8c38f59acca1_3397.js&pv/static/lib/util_df59a873a5b0910536d5fd5c6a99b022_1a09.js — 200 — 10.3 KiB — 20 ms — h2https://s.yimg.com/zz/combo?pv/static/lib/native-browser-extension-promotion_d21586e4659c58e4f08a20ce594a0917_4dda.js&pv/static/lib/native-browser-extension-promotion-chrome_3ef1fdae81f3182b7b2ad32c074d01dd_1438.jss.yimg.com/zz/combo?pv/static/lib/n... https://s.yimg.com/zz/combo?pv/static/lib/native-browser-extension-promotion_d21586e4659c58e4f08a20ce594a0917_4dda.js&pv/static/lib/native-browser-extension-promotion-chrome_3ef1fdae81f3182b7b2ad32c074d01dd_1438.js — 200 — 3.7 KiB — 21 ms — h2https://s.yimg.com/zz/combo?pv/static/lib/analytics3_70431f41b625c7e11b1a69de45b10c88_107ac.jss.yimg.com/zz/combo?pv/static/lib/a... https://s.yimg.com/zz/combo?pv/static/lib/analytics3_70431f41b625c7e11b1a69de45b10c88_107ac.js — 200 — 22.6 KiB — 23 ms — h2https://s.yimg.com/pv/static/img/voiceSearchSFP1x-1627626333804.min.pngs.yimg.com/pv/static/img/voiceSearc... https://s.yimg.com/pv/static/img/voiceSearchSFP1x-1627626333804.min.png — 200 — 3.8 KiB — 22 ms — h2https://s.yimg.com/pv/static/font/search/Roboto-Bold-202103020707.woff2s.yimg.com/pv/static/font/search/Ro... https://s.yimg.com/pv/static/font/search/Roboto-Bold-202103020707.woff2 — 200 — 63.5 KiB — 7 ms — h2https://s.yimg.com/pv/static/img/32_sunny-202211231919.svgs.yimg.com/pv/static/img/32_sunny-2... https://s.yimg.com/pv/static/img/32_sunny-202211231919.svg — 200 — 6.6 KiB — 12 ms — h2https://www.googletagmanager.com/gtag/js?id=G-40HG6NTJFDwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-40HG6NTJFD — 200 — 156.7 KiB — 275 ms — h2https://www.google-analytics.com/g/collect?v=2&tid=G-40HG6NTJFD&gtm=45je64h1v9224696920za200zd9224696920&_p=1776805966483&gcs=G1-1&gcd=13l3v3v3v5l1&npa=0&dma=0&are=1&cid=1315627731.1776805967&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938465~115938469~117266400&sid=1776805966&sct=1&seg=0&dl=https%3A%2F%2Fsearch.yahoo.com%2F%3Ffr%3Daltavista&dt=Yahoo%20Search%20-%20Web%20Search&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.yBID=0ls48ltkufq2d&ep.yPageContentType=search&ep.yPageType=utility&tfd=2695www.google-analytics.com/g/collect?... https://www.google-analytics.com/g/collect?v=2&tid=G-40HG6NTJFD&gtm=45je64h1v9224696920za200zd9224696920&_p=1776805966483&gcs=G1-1&gcd=13l3v3v3v5l1&npa=0&dma=0&are=1&cid=1315627731.1776805967&frm=0&pscdl=noapi&rcb=9&sr=800x600&uaa=x86&uab=64&uafvl=Not-A.Brand%3B24.0.0.0%7CChromium%3B146.0.7680.164&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938465~115938469~117266400&sid=1776805966&sct=1&seg=0&dl=https%3A%2F%2Fsearch.yahoo.com%2F%3Ffr%3Daltavista&dt=Yahoo%20Search%20-%20Web%20Search&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&ep.yBID=0ls48ltkufq2d&ep.yPageContentType=search&ep.yPageType=utility&tfd=2695 — 204 — 549 B — 130 ms — h2https://search.yahoo.com/favicon.icosearch.yahoo.com/favicon.ico https://search.yahoo.com/favicon.ico — 200 — 2.5 KiB — 142 ms — h2
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 299ms · 199KB · $4/mo
search.yahoo.com
Other
Optional
Execution 115ms
Transfer 42 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 102ms
Transfer 157 KB
Unused 40%
Monthly Cost $1/mo
Unattributable
Other
Optional
Execution 82ms
Transfer 0 KB
Monthly Cost $1/mo

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

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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