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· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

91

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
www.bosch.com/media/tech/fonts/woff2/bosch_icon_woff2.woff20.0 ms432.5 KiB
www.bosch.com/media/tech/fonts/woff2/boschsans-regularitalic.woff20.0 ms77.9 KiB
www.bosch.com/media/tech/fonts/woff2/boschsans_bold.woff20.0 ms76.3 KiB
www.bosch.com/media/tech/fonts/woff2/boschsans_regular.woff20.0 ms75.8 KiB
btm.bosch.com/rb/chat/cognigy/v3_latest/webchat.css3600.0 s74.4 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-icons.css?ver=17725298176230.0 ms57.2 KiB
/media/global/bosch_group/annual_report/keyvisuals_topics...0.0 ms48.9 KiB
www.bosch.com/media/tech/scripts/main.js?ver=17725298176230.0 ms48.1 KiB
www.bosch.com/media/tech/scripts/react.js?ver=17725298176230.0 ms42.4 KiB
/media/global/stories/topic_worlds/topic_teaser/topic-tea...0.0 ms40.9 KiB
www.bosch.com/media/tech/styles/main.css?ver=17725298176230.0 ms37.4 KiB
www.bosch.com/media/tech/scripts/vendors.js?ver=17725298176230.0 ms25.7 KiB
/media/global/stories/topic_worlds/topic_teaser/topic-tea...0.0 ms20.9 KiB
/media/global/stories/topic_worlds/topic-teaser-software-...0.0 ms18.8 KiB
/media/global/stories/topic_worlds/topic_teaser/topic-tea...0.0 ms18.0 KiB
/media/global/stories/topic_worlds/energy_efficiency_at_h...0.0 ms17.3 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-atoms.css?ver=17725298176230.0 ms16.3 KiB
/media/global/stories/topic_worlds/topic-teaser-innovatio...0.0 ms14.1 KiB
/media/global/stories/country_portrait_bosch_in_india/key...0.0 ms13.6 KiB
/media/global/products_and_solutions/at_home/power_tools/...0.0 ms11.8 KiB
/media/global/products_and_solutions/at_home/measuring_to...0.0 ms11.0 KiB
/media/global/products_and_solutions/at_home/smart_home_1...0.0 ms10.9 KiB
/media/global/stories/circular_economy_remanufacturing/ke...0.0 ms10.9 KiB
/media/global/stories/ai_academy/keyvisual-logistics_res_...0.0 ms10.4 KiB
/media/global/products_and_solutions/at_home/home_applian...0.0 ms10.2 KiB
/media/tech/styles/frok/light-mode-all-backgrounds.css?ve...0.0 ms10.0 KiB
/media/tech/styles/frok/frontend-kit-organisms.css?ver=17...0.0 ms8.7 KiB
/media/global/products_and_solutions/at_home/garden_tools...0.0 ms8.3 KiB
/media/global/stories/bike_tours/keyvisual-ebike_res_640x...0.0 ms8.3 KiB
assets.bosch.com/media/global/stories/adas/keyvisual-china-adas_res_640x360.webp0.0 ms8.3 KiB
/media/tech/styles/frok/frontend-kit-molecules.css?ver=17...0.0 ms7.4 KiB
/media/global/products_and_solutions/at_home/cleaning_too...0.0 ms6.5 KiB
/media/global/stories/topic_worlds/topic_teaser/topic-tea...0.0 ms6.3 KiB
/media/global/stories/topic_worlds/topic_teaser/topic-tea...0.0 ms5.5 KiB
/media/global/products_and_solutions/at_home/heating_cool...0.0 ms5.1 KiB
/media/global/stories/shopfloor_agent/keyvisual-agentic-a...0.0 ms5.0 KiB
www.bosch.com/media/tech/fonts/woff2/bosch_ui_icon_woff2.woff20.0 ms4.6 KiB
/media/tech/styles/frok/frontend-kit-foundations.css?ver=...0.0 ms3.9 KiB
sst.bosch.com/echo.js7200.0 s4.5 KiB
www.bosch.com/media/tech/styles/frok/light-mode-gradations.css?ver=17725298176230.0 ms2.8 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-fonts.css?ver=17725298176230.0 ms2.8 KiB

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
www.bosch.com/media/tech/fonts/woff2/bosch_icon_woff2.woff245 ms
www.bosch.com/media/tech/fonts/woff2/bosch_ui_icon_woff2.woff220 ms

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: Row of people with scenes of work, mobility, cycling, warehouses, and industria…
path: 1,HTML,1,BODY,5,MAIN,0,DIV,1,DIV,0,DIV,0,A,0,FIGURE,0,DIV,1,PICTURE,4,IMG
selector: figure.A-Image__figure > div.A-Image__preloadWrapper > picture.A-Image__picture > img.A-Image
snippet: <img class="A-Image A-Image--preload" src="https://assets.bosch.com/media/global/bosch_group/annual_report/keyvisuals…" srcset="https://assets.bosch.com/media/global/bosch_group/annual_report/keyvisuals…" width="1600" height="900" alt="Row of people with scenes of work, mobility, cycling, warehouses, and indu…">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
btm.bosch.com/rb/chat/cognigy/v3_latest/webchat.css74.4 KiB337 ms
www.bosch.com/media/tech/styles/main.css?ver=177252981762337.4 KiB80 ms
www.bosch.com/media/tech/styles/frok/frontend-kit-icons.css?ver=177252981762357.2 KiB120 ms
www.bosch.com/media/tech/styles/frok/frontend-kit-atoms.css?ver=177252981762316.3 KiB
/media/tech/styles/frok/light-mode-all-backgrounds.css?ve...10.0 KiB
/media/tech/styles/frok/frontend-kit-organisms.css?ver=17...8.7 KiB
/media/tech/styles/frok/frontend-kit-molecules.css?ver=17...7.4 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-fonts.css?ver=17725298176232.8 KiB
/media/tech/styles/frok/frontend-kit-foundations.css?ver=...3.9 KiB
www.bosch.com/media/tech/styles/frok/light-mode-gradations.css?ver=17725298176232.8 KiB

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Row of people with scenes of work, mobility, cycling, warehouses, and industria… figure.A-Image__figure > div.A-Image__preloadWrapper > picture.A-Image__picture > img.A-Image
/media/global/bosch_group/annual_report/keyvisuals_topics...48.6 KiB12.8 KiB
Wood artist Adam Detre stands surrounded by trees behind a Bosch GCM 18V-305 GD… figure.A-Image__figure > div.A-Image__preloadWrapper > picture.A-Image__picture > img.A-Image
/media/global/stories/topic_worlds/topic_teaser/topic-tea...40.7 KiB6.3 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 16.1 KiB
URLTransfer SizeEst Savings
btm.bosch.com/rb/chat/cognigy/v3_latest/webchat.css74.4 KiB16.1 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 120 ms 242.1 KiB
URLTransfer SizeEst Savings
btm.bosch.com/rb/chat/cognigy/v3_latest/webchat.css74.0 KiB72.8 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-icons.css?ver=177252981762355.3 KiB38.2 KiB
www.bosch.com/media/tech/styles/main.css?ver=177252981762335.4 KiB31.3 KiB
*{--bosch-red-95:#ffecec;--bosch-red-90:#ffd9d9;--bosch-red-85:#ffc6c6;--bosch-red-80:#ffb2b2;--bos…25.2 KiB22.0 KiB
*{--bosch-red-95:#ffecec;--bosch-red-90:#ffd9d9;--bosch-red-85:#ffc6c6;--bosch-red-80:#ffb2b2;--bos…24.3 KiB21.5 KiB
*{--bosch-red-95:#ffecec;--bosch-red-90:#ffd9d9;--bosch-red-85:#ffc6c6;--bosch-red-80:#ffb2b2;--bos…23.9 KiB21.2 KiB
*{--bosch-red-95:#ffecec;--bosch-red-90:#ffd9d9;--bosch-red-85:#ffc6c6;--bosch-red-80:#ffb2b2;--bos…23.7 KiB21.0 KiB
www.bosch.com/media/tech/styles/frok/frontend-kit-atoms.css?ver=177252981762314.4 KiB14.0 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 80 ms 86.3 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-TBM8RNC141.7 KiB61.5 KiB
www.bosch.com/media/tech/scripts/main.js?ver=177252981762346.1 KiB24.8 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 238 ms
URLTime Spent
bosch.com/238 ms
www.bosch.com/0.0 ms
●Time to Interactive 1.8 s
●Layout shift culprits
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 30 ms
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,533 KiB
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.4 s
●Avoid non-composited animations 5 animated elements found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 50 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 30 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○User Timing marks and measures
○Avoid long main-thread tasks
100

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
The Bosch Shopfloor Agent div.M-Stage-Two > div.M-Stage-Two__contentContainer > div.A-Teaser-HomeTeaser > a.A-Teaser-HomeTeaser__mainLink
Home appliances div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Power tools div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Garden tools div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Measuring tools div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Cleaning tools div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Heating, cooling, and well-being div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Smart Home div.M-ProductSlider > div.M-ProductSlider__wrapper > div.M-ProductSlider__slider > a.M-ProductSlider__item
Mobility Explore our complete portfolio of mobility solutions div.M-Teaser-DecisionTeaser__items > div.M-Teaser-DecisionTeaser__item > div.A-Teaser-DecisionTeaser > a.A-Teaser-DecisionTeaser__link
Industry and trades Discover our products and services for industry and trades div.M-Teaser-DecisionTeaser__items > div.M-Teaser-DecisionTeaser__item > div.A-Teaser-DecisionTeaser > a.A-Teaser-DecisionTeaser__link
STORYBike tours Exploring by e-bike div.M-Teaser-StoryTeaser > ul.M-Teaser-StoryTeaser__list > li.M-Teaser-StoryTeaser__item > a.A-Teaser-StoryTeaser
STORYRemanufacturing Giving a second life div.M-Teaser-StoryTeaser > ul.M-Teaser-StoryTeaser__list > li.M-Teaser-StoryTeaser__item > a.A-Teaser-StoryTeaser
STORYAI Academy How Bosch is developing its AI talent div.M-Teaser-StoryTeaser > ul.M-Teaser-StoryTeaser__list > li.M-Teaser-StoryTeaser__item > a.A-Teaser-StoryTeaser
STORYThe silent revolution How Bosch is putting automated driving on the roads… div.M-Teaser-StoryTeaser > ul.M-Teaser-StoryTeaser__list > li.M-Teaser-StoryTeaser__item > a.A-Teaser-StoryTeaser
STORYBosch in India Tradition meets technology div.M-Teaser-StoryTeaser > ul.M-Teaser-StoryTeaser__list > li.M-Teaser-StoryTeaser__item > a.A-Teaser-StoryTeaser
Innovation Shaping the future div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Software-driven mobility The car of the future is personalized div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Artificial intelligence AI for a better future div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Energy efficiency Saving energy at home is easier than you think div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Hydrogen Energy of the future div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Battery technology More than just a means of storing energy div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
MEMS-sensors Micro-Electro-Mechanical Systems div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
Electrification Electricity drives us div.M-Teaser-TopicTeaser__wrapper > div.M-Teaser-TopicTeaser__slider > div.M-Teaser-TopicTeaser__item > a.A-Teaser-TopicTeaser
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
96

Best Practices

General

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
○Detected JavaScript libraries
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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