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class="_mobileNavLink_1lcxr_30"><span class="_size:navLink_1ufdr_190">Overview</span></a><hsw-mobile-sub-nav-button target="our-approach-sub-nav" class="_mobileNavLink_1lcxr_30"><span class="_size:navLink_1ufdr_190">Our approach</span><span class="material-symbols-outlined">chevron_right</span></hsw-mobile-sub-nav-button><hsw-mobile-sub-nav-button target="how-search-works-sub-nav" class="_mobileNavLink_1lcxr_30 _active_1lcxr_45"><span class="_size:navLink_1ufdr_190">How Search works</span><span class="material-symbols-outlined">chevron_right</span></hsw-mobile-sub-nav-button><a href="/search/howsearchworks/features/" class="_mobileNavLink_1lcxr_30"><span class="_size:navLink_1ufdr_190">Features</span></a><a href="/search/howsearchworks/our-history/" class="_mobileNavLink_1lcxr_30"><span class="_size:navLink_1ufdr_190">Our history</span></a></div> <div class="_mobileNavSubSections_1lcxr_50"> <div class="_mobileNavSubSection_1lcxr_50" id="our-approach-sub-nav" aria-hidden="true"> <div 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<div class="_container_801xm_2 _opt-hero-video_801xm_93"> <div id="hero-5050" class="_section_801xm_28"> <div class="_chapter_801xm_57"> <div class="_chapter_12j5y_2 _leftAligned_12j5y_36"> <h1 class="_headlineTitle_12j5y_41 _size:headline1_1ufdr_8 _heading_1ufdr_2">Improving Search with rigorous testing</h1> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Our goal is always to provide you with the most useful and relevant information. Any changes we make to Search are always to improve the usefulness of results you see.</p> </div> </div> </div> <div class="_assets_801xm_40"> <div class="_outerContainer_1a30w_61 _rounded_1a30w_64"> <div class="_imageContainer_1a30w_2"><hsw-youtube-card play-video-aria-label="Play video" video-id="WbSouimbtjU" video-duration="3:55" video-title="See how real people make Google Search better"> <picture> <source srcset="https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w1023, https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w2046 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w2000, https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=e365-rw-pa-nu-w4000 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/3iE9uhmCFBoTb9OkRtHSwRUz2Sk8KllALDVb8veUsU9qq4oAsHlw9yV6ptcUnyOSBQvjwPdTUO0OmES86RavF6qLuoL4ZkbWG_w=s0-rw-e365" width="2040" height="1230" alt="Illustration of the world with pins in every continent with different avatars." loading="eager" fetchpriority="high" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </hsw-youtube-card></div> </div> </div> </div> </div> </section> <section id="spacer-lg" data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="testing-for-usefulness" data-type="Template2ColumnChapter"> <div class="_container_4it29_2 _container_v17ms_2"> <div class="_header_v17ms_41"> <h2 class="_size:headline4_1ufdr_81 _heading_1ufdr_2">Testing for usefulness</h2> </div> <div class="_contents_v17ms_28"> <div class="_chapter1_v17ms_45"> <div class="_chapter_12j5y_2 _leftAligned_12j5y_36"> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Search has changed over the years to meet the evolving needs and expectations of the people who use Google. From innovations like <a href="https://blog.google/products/search/introducing-knowledge-graph-things-not/" target="_blank" rel="noopener noreferrer">the Knowledge Graph</a>, to updates to our systems that ensure we’re continuing to highlight relevant content, our goal is always to improve the usefulness of your results. That is why, while advertisers can pay and be displayed in clearly marked ad sections, <a href="../search/howsearchworks/our-approach/ads-on-search/">no one can buy better placement in the Search results</a>.</p> </div> </div> </div> <div class="_chapter2_v17ms_50"> <div class="_chapter_12j5y_2 _leftAligned_12j5y_36"> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>We put all possible changes to Search through a rigorous evaluation process to analyze metrics and decide whether to implement a proposed change. Data from these search evaluations and experiments go through a thorough review by experienced engineers and search analysts, as well as other legal and privacy experts, who then determine if the change is approved to launch. In 2023, we ran over 700,000 experiments that resulted in more than 4,000 improvements to Search.</p> </div> </div> </div> </div> </div> </section> <section id="spacer-lg" data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="evaluate-search-title" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">We evaluate Search in multiple ways. In 2023, we ran:</h2> </div> </div> </section> <section id="spacer-md2" data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-md2_1vmys_123" role="separator" aria-hidden="true"></div> </div> </section><hsw-jump-nav> <div class="_navGroup_zg2ri_2 _hideArrows_zg2ri_93"> <div class="_navWrapper_zg2ri_16"><button class="_leftArrow_zg2ri_60" label="Previous" data-jump-prev="true"><span class="material-symbols-outlined">chevron_left</span></button><button class="_rightArrow_zg2ri_61" label="Next" data-jump-next="true"><span class="material-symbols-outlined">chevron_right</span></button> <ul class="_nav_zg2ri_2" data-jump-scroller="true"> <li class="_navItem_zg2ri_41"><a href="#feature-launches" data-jump-item="true" class="_jumpItem_zg2ri_44">4,781 launches</a></li> <li class="_navItem_zg2ri_41"><a href="#live-traffic-experiments" data-jump-item="true" class="_jumpItem_zg2ri_44">16,871 live traffic experiments</a></li> <li class="_navItem_zg2ri_41"><a href="#search-quality-tests" data-jump-item="true" class="_jumpItem_zg2ri_44">719,326 search quality tests</a></li> <li class="_navItem_zg2ri_41"><a href="#side-by-side-experiments" data-jump-item="true" class="_jumpItem_zg2ri_44">124,942 side-by-side experiments</a></li> </ul> </div> </div> </hsw-jump-nav> <section id="spacer-lg" data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="feature-launches" data-type="Section"> <section class="_section_6xn19_13 _opt-background-grey-50_6xn19_5"> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="feature-launches-title" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41" style="--chapter-max-width:745px;"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">4,781 launches</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Every single proposed change to Search goes through a review by our most experienced engineers and data scientists, who carefully review the data from all the different experiments to decide if the change is approved to launch. If we can’t show that a change actually makes things better for people, we don’t launch it.</p> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-md2_1vmys_123" role="separator" aria-hidden="true"></div> </div> </section> <section id="feature-launches-image" data-type="TemplateAsset"> <div class="_container_4it29_2"> <div id="feature-launches-image" class="_section_1etrm_2 _opt-contained_1etrm_13"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w1023, https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w2046 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w2000, https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=e365-rw-pa-nu-w4000 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/mzW0ail_IVK2rHQDx4HddEREa5Y6Z3oV1gGJ9PN8h2zqQtjxhvBlw7P4hlZDQPfq8U7vWD4bgZI1dGy4fUfH5xa_lwBu-6D9YWM=s0-rw-e365" width="2040" height="960" alt="Three potential changes rated good, neutral, and poor" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-md_1vmys_110" role="separator" aria-hidden="true"></div> </div> </section> </section> </section> <section id="live-traffic-experiments" data-type="Section"> <section class="_section_6xn19_13"> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="traffic-experiments-title" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41" style="--chapter-max-width:745px;"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">16,871 live traffic experiments</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>We conduct live traffic experiments to see how real people interact with a feature before launching it to everyone.</p> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-md2_1vmys_123" role="separator" aria-hidden="true"></div> </div> </section> <section id="traffic-experiments-image" data-type="TemplateAsset"> <div class="_container_4it29_2"> <div id="traffic-experiments-image" class="_section_1etrm_2"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w1023, https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w2046 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w2000, https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=e365-rw-pa-nu-w4000 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/1YmbmzRUFP4fBLax_gU2ArraldrJ_Fkk54a63LGWA9qDhGsGzduD8z-MrG_b4N1p_TZVW2182apf6weVmF3KW93n5-R05m9QBO76=s0-rw-e365" width="2893" height="1256" alt="A page comparison with graphs showing rate of user interactions" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-md_1vmys_110" role="separator" aria-hidden="true"></div> </div> </section> <section id="traffic-experiments-columns" data-type="TemplateColumns"> <div class="_container_hgrdl_2 _columns3_hgrdl_41"> <div class="_column_hgrdl_41"> <div class="_icon_hgrdl_71"></div> <h2 class="_size:headline5_1ufdr_103 _heading_1ufdr_2">Running experiments</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>First, we enable the feature in question to just a small percentage of people, usually starting at 0.1%. We then compare the experiment group to a control group that did not have the feature enabled.</p> </div> </div> <div class="_column_hgrdl_41"> <div class="_icon_hgrdl_71"></div> <h2 class="_size:headline5_1ufdr_103 _heading_1ufdr_2">Analyzing metrics</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Next, we look at a very long list of metrics, such as what people click on, how many queries were done, whether queries were abandoned, or how long it took for people to click on a result.</p> </div> </div> <div class="_column_hgrdl_41"> <div class="_icon_hgrdl_71"></div> <h2 class="_size:headline5_1ufdr_103 _heading_1ufdr_2">Measuring engagement</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Finally, we use these results to measure whether engagement with the new feature is positive, to ensure that the changes we make are increasing the relevance and usefulness of our results for everyone.</p> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> </section> </section> <section id="search-quality-tests" data-type="Section"> <section class="_section_6xn19_13 _opt-background-grey-50_6xn19_5"> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="quality-tests-title" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41" style="--chapter-max-width:745px;"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">719,326 search quality tests</h2> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-micro_1vmys_139" role="separator" aria-hidden="true"></div> </div> </section> <section id="quality-tests-content" data-type="Template5050"> <div class="_container_801xm_2"> <div id="quality-tests-content" class="_section_801xm_28"> <div class="_chapter_801xm_57"> <div class="_chapter_12j5y_2 _leftAligned_12j5y_36"> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>We work with external Search Quality Raters to measure the quality of Search results on an ongoing basis. Raters assess how well website content fulfills a search request, and evaluate the quality of results based on the expertise, authoritativeness, and trustworthiness of the content. These ratings do not directly impact ranking, but they do help us benchmark the quality of our results and make sure these meet a high bar all around the world.</p> <blockquote> <p>Raters evaluate the quality of results based on the expertise, authoritativeness, and trustworthiness of the content.</p> </blockquote> <p>To ensure a consistent approach, we publish Search Quality Rater Guidelines to give these Raters guidance and examples for appropriate website ratings. While evaluating the quality of search results might sound simple, there are many tricky cases to think through, so this feedback is critical to ensuring we maintain high quality results for users.</p> </div> <div class="_buttonContainer_12j5y_49"></div> </div> </div> <div class="_assets_801xm_40"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w1023, https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w2046 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w1701, https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=e365-rw-pa-nu-w3402 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/Bj564GLAP6BiARM3_9hFAce7754C1tHx5WLNir-wieQ01HFTgxQ9xiLThcsCWyIRJf7Wg7lNdGurvivFrwbKnHk05L-ZuQNf010d=s0-rw-e365" width="1701" height="1440" alt="Illustration of search results with checklist indicating high quality results" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-sm_1vmys_131" role="separator" aria-hidden="true"></div> </div> </section> <section id="quality-tests-links-card" data-type="Template2Columns"> <div class="_container_11vxe_2"> <div class="_column_11vxe_24"> <div> <div class="_linkEyebrow_11vxe_29 _size:eyebrow_1ufdr_151">Read the rater guidelines</div> <div> <div class="_linkContainer_11vxe_32"><hsw-button href="https://services.google.com/fh/files/misc/hsw-sqrg.pdf" icon="pdf" variant="box-link" icon-position="end">Guidelines Overview</hsw-button></div> <div class="_linkContainer_11vxe_32"><hsw-button href="https://static.googleusercontent.com/media/guidelines.raterhub.com/en//searchqualityevaluatorguidelines.pdf" icon="pdf" variant="box-link" icon-position="end">Full Guidelines</hsw-button></div> </div> </div> </div> <div class="_column_11vxe_24"> <div><hsw-expandable-card> <div class="_card_1xvr6_2" data-card="true"> <div class="_titleGroup_1xvr6_28"> <div class="_title_1xvr6_28">Surfacing Google Search results</div> <div><svg width="48" height="49" viewBox="0 0 48 49" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M24 39.8125C23.1311 39.8125 22.3964 39.5153 21.7958 38.9208C21.1953 38.3264 20.895 37.5991 20.895 36.7391H27.105C27.105 37.5991 26.8047 38.3264 26.2042 38.9208C25.6036 39.5153 24.8689 39.8125 24 39.8125ZM17.79 34.3865V32.1099H30.21V34.3865H17.79ZM17.9817 29.7954C16.295 28.7076 14.9597 27.348 13.9758 25.7164C12.9919 24.0848 12.5 22.2446 12.5 20.1956C12.5 17.1095 13.6372 14.4408 15.9117 12.1895C18.1861 9.93816 20.8822 8.8125 24 8.8125C27.1178 8.8125 29.8139 9.93816 32.0883 12.1895C34.3628 14.4408 35.5 17.1095 35.5 20.1956C35.5 22.2446 35.0144 24.0848 34.0433 25.7164C33.0722 27.348 31.7306 28.7076 30.0183 29.7954H17.9817ZM18.825 27.5187H29.2133C30.44 26.7093 31.4111 25.6595 32.1267 24.3694C32.8422 23.0793 33.2 21.6881 33.2 20.1956C33.2 17.6913 32.2992 15.5475 30.4975 13.7642C28.6958 11.9808 26.53 11.0891 24 11.0891C21.47 11.0891 19.3042 11.9808 17.5025 13.7642C15.7008 15.5475 14.8 17.6913 14.8 20.1956C14.8 21.6881 15.1578 23.0793 15.8733 24.3694C16.5889 25.6595 17.5728 26.7093 18.825 27.5187Z" fill="#EA8600"></path> </svg></div> </div> <div class="_body_1xvr6_19 _markdown_1q5js_1 _body:medium_1q5js_150"> <p>People don’t choose or arrange results on Search. Google Search automatically surfaces the most useful and reliable content for particular queries. We process billions of searches per day. Automation is how Google handles the immense scale of so many searches. These systems consider many factors, including the words in your query, the content of pages, the expertise of sources, and your language and location.</p> <p>When we identify places where we are not delivering high-quality results, we investigate to understand what the broader issue might be, and we take a scalable approach to improve our results for not just one query, but many others.</p> <p>We are constantly improving Google Search. In some cases, we may bring in humans to manually block policy-violating or illegal content, in the limited and well-defined situations that warrant this. You can learn more about our policies that apply to Google Search <a href="https://support.google.com/websearch/answer/10622781?hl=en" target="_blank" rel="noopener noreferrer">here</a>.</p> </div><button class="_button_1xvr6_75" aria-label="Open an expanding content section about how Google automatically prioritizes results." read-more="true"> <div class="_readMore_1xvr6_22" aria-hidden="true">Read more<div class="_readMoreIcon_1xvr6_69"><span class="material-symbols-outlined">chevron_right</span></div> </div> <div class="_readLess_1xvr6_25" aria-hidden="true">Show less<div class="_readLessIcon_1xvr6_72"><span class="material-symbols-outlined">chevron_right</span></div> </div> </button> </div> </hsw-expandable-card></div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> </section> </section> <section id="side-by-side-experiments" data-type="Section"> <section class="_section_6xn19_13"> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="side-by-side-intro" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41" style="--chapter-max-width:768px;"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">124,942 side-by-side experiments</h2> <div class="_markdown_1q5js_1 _body:large_1q5js_159"> <p>Search isn’t static. We’re constantly improving our systems to return better results and Search Quality Raters play an important role in the launch process. In a side-by-side experiment, we show Raters two different sets of Search results: one with the proposed change already implemented and one without. We ask them which results they prefer and why.</p> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:4_1vmys_79" role="separator" aria-hidden="true"></div> </div> </section> <section id="side-by-side-image" data-type="TemplateAsset"> <div class="_container_4it29_2"> <div id="side-by-side-image" class="_section_1etrm_2 _opt-contained_1etrm_13"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/IltTGL3iicSOyu3GIcSvAT3x7m5nULFFlC8H96Nc7rfGhUY9WGgY0YZPIurtsXHFZH4BRW6qnjXd78zy3SUM_R58zJEFmXwrzgMMpg=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/IltTGL3iicSOyu3GIcSvAT3x7m5nULFFlC8H96Nc7rfGhUY9WGgY0YZPIurtsXHFZH4BRW6qnjXd78zy3SUM_R58zJEFmXwrzgMMpg=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source 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picking the better option" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="hairline-divider" data-type="TemplateHairline"> <div class="_container_8567t_2"></div> </section> </section> </section> <section id="discover-more-section" data-type="Section"> <section class="_section_6xn19_13"> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap_1vmys_97" role="separator" aria-hidden="true"></div> </div> </section> <section id="discover-more-title" data-type="TemplateChapter"> <div class="_container_1eunk_2"> <div class="_chapter_12j5y_2 _adjustedTitleGap_12j5y_41"> <h2 class="_headlineTitle_12j5y_41 _size:headline3_1ufdr_57 _heading_1ufdr_2">Discover more</h2> </div> </div> </section> <section data-type="Spacer"> <div class="_spacers_1vmys_11"> <div class="_spacer_1vmys_11 _size:module-gap-sm_1vmys_131" role="separator" aria-hidden="true"></div> </div> </section> <section id="discover-more-cards" data-type="TemplateCards"> <div class="_overflowContainer_1mquz_2"> <div class="_carouselContainer_1mquz_12 _extendToRightEdge_1mquz_43" style="--carousel-desktop-slide-count:4;"> <div class="_carousel_1mquz_12"><bds-carousel controls="false; laptop-gt: true;" hide-controls-on-edges="true" pagination gap="24" scroll-snap-align="center"><bds-carousel-slide><hsw-youtube-element> <div class="_card_wey49_2 _card_9vdl6_2 _discoverMore_9vdl6_81 _asButton_9vdl6_15"> <div class="_assets_9vdl6_96"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w1836 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=e365-rw-pa-nu-w1836 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/6nZfheWmEbF9N5be_cQnf72qEsfIcYdav226ycm-7vDWppCpEWyexQziw5nr5IacGg-4ZdkEEHvyctIeD7d_xl6DTQjzDu3iSXXn=s0-rw-e365" width="918" height="690" alt="Colorful books highlighted against rows of gray library shelves" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> <div class="_chapter_9vdl6_52"> <div class="_chapterContent_9vdl6_72"> <div class="_size:eyebrow_1ufdr_151">ORGANIZING INFO</div> <h3 class="_title_9vdl6_30 _size:card-title_1ufdr_207 _heading_1ufdr_2">How Search organizes information</h3> </div><hsw-button href="/search/howsearchworks/how-search-works/organizing-information/" icon="chevron_right" variant="low-emphasis" icon-position="end">Learn more</hsw-button> </div><a aria-label="Learn more" href="/search/howsearchworks/how-search-works/organizing-information/" class="_buttonLink_9vdl6_41"></a> </div> </hsw-youtube-element></bds-carousel-slide><bds-carousel-slide><hsw-youtube-element> <div class="_card_wey49_2 _card_9vdl6_2 _discoverMore_9vdl6_81 _asButton_9vdl6_15"> <div class="_assets_9vdl6_96"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w1836 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=e365-rw-pa-nu-w1836 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/oUAo_pbaAhapu52MjBNUXs19c2x7GLst8GwCdtXznuscd51CtU2aCRNe3z0OkcywlDqdIeBbjIlnE_Iph1FH_GH83ib6Ock4AVtj=s0-rw-e365" width="918" height="690" alt="A person searching for information on lawnmowers" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> <div class="_chapter_9vdl6_52"> <div class="_chapterContent_9vdl6_72"> <div class="_size:eyebrow_1ufdr_151">RANKING RESULTS</div> <h3 class="_title_9vdl6_30 _size:card-title_1ufdr_207 _heading_1ufdr_2">Instantly matching your search</h3> </div><hsw-button href="/search/howsearchworks/how-search-works/ranking-results/" icon="chevron_right" variant="low-emphasis" icon-position="end">Learn more</hsw-button> </div><a aria-label="Learn more" href="/search/howsearchworks/how-search-works/ranking-results/" class="_buttonLink_9vdl6_41"></a> </div> </hsw-youtube-element></bds-carousel-slide><bds-carousel-slide><hsw-youtube-element> <div class="_card_wey49_2 _card_9vdl6_2 _discoverMore_9vdl6_81 _asButton_9vdl6_15"> <div class="_assets_9vdl6_96"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source srcset="https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w499, https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w998 2x" media="(max-width: 499px)"> <source srcset="https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w1836 2x" media="(min-width: 500px) and (max-width: 1023px)"> <source srcset="https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w918, https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=e365-rw-pa-nu-w1836 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/PDNlAAQdSkNQkUdK3N5h6mBy-v9X5s7GO6Qa7hd44rYfYEIRnNkgCWnMCfl8-AmnHUnRiITIeF-k1gW2fHnrBhKxt7X0BohnHgc=s0-rw-e365" width="918" height="689" alt="Illustrated Search windows representing malware, spam pages, and questionable content" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> <div class="_chapter_9vdl6_52"> <div class="_chapterContent_9vdl6_72"> <div class="_size:eyebrow_1ufdr_151">DETECTING SPAM</div> <h3 class="_title_9vdl6_30 _size:card-title_1ufdr_207 _heading_1ufdr_2">Keeping you safe on Search</h3> </div><hsw-button href="/search/howsearchworks/how-search-works/detecting-spam/" icon="chevron_right" variant="low-emphasis" icon-position="end">Learn more</hsw-button> </div><a aria-label="Learn more" href="/search/howsearchworks/how-search-works/detecting-spam/" class="_buttonLink_9vdl6_41"></a> </div> </hsw-youtube-element></bds-carousel-slide><bds-carousel-slide><hsw-youtube-element video-id> <div class="_card_wey49_2 _card_9vdl6_2 _discoverMore_9vdl6_81 _asButton_9vdl6_15"> <div class="_assets_9vdl6_96"> <div class="_outerContainer_1a30w_61"> <div class="_imageContainer_1a30w_2"> <div> <picture> <source 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https://lh3.googleusercontent.com/YQE6o5BAFMZoEicOnsUIEwUlchdfPG8Gh0Y2JJJMQbDxxXrHj3KonuQ19-1Dr45tqM-mgPuJPrNCQqCHu2Wo8_Di9TPKZIPKU6Pgjw=e365-rw-pa-nu-w1836 2x" media="(min-width: 1440px)"> <img src="https://lh3.googleusercontent.com/YQE6o5BAFMZoEicOnsUIEwUlchdfPG8Gh0Y2JJJMQbDxxXrHj3KonuQ19-1Dr45tqM-mgPuJPrNCQqCHu2Wo8_Di9TPKZIPKU6Pgjw=s0-rw-e365" width="918" height="690" alt="A close up on the Google search bar" loading="lazy" fetchpriority="auto" class="_image_iqhl2_2 _cover_iqhl2_13"> </picture> </div> </div> </div> </div> <div class="_chapter_9vdl6_52"> <div class="_chapterContent_9vdl6_72"> <div class="_size:eyebrow_1ufdr_151">THE KEYWORD</div> <h3 class="_title_9vdl6_30 _size:card-title_1ufdr_207 _heading_1ufdr_2">A quarter century of change</h3> </div><hsw-button href="https://blog.google/inside-google/message-ceo/google-25th-birthday-sundar-pichai/" icon="open_in_new" variant="low-emphasis" icon-position="end" video-id>Learn more</hsw-button> </div><a aria-label="Learn more" 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