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mw-first-heading"><span class="mw-page-title-namespace">Wikipedia</span><span class="mw-page-title-separator">:</span><span class="mw-page-title-main">PetScan</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 16 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-16" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">16 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%88%D9%8A%D9%83%D9%8A%D8%A8%D9%8A%D8%AF%D9%8A%D8%A7:PetScan" title="ويكيبيديا:PetScan – Arabic" lang="ar" hreflang="ar" data-title="ويكيبيديا:PetScan" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%89%E0%A6%87%E0%A6%95%E0%A6%BF%E0%A6%AA%E0%A6%BF%E0%A6%A1%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%BE:%E0%A6%AA%E0%A7%87%E0%A6%9F%E0%A6%B8%E0%A7%8D%E0%A6%95%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%A8" title="উইকিপিডিয়া:পেটস্ক্যান – Bangla" lang="bn" hreflang="bn" data-title="উইকিপিডিয়া:পেটস্ক্যান" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Wikipedia:Technik/Cloud/petscan" title="Wikipedia:Technik/Cloud/petscan – German" lang="de" hreflang="de" data-title="Wikipedia:Technik/Cloud/petscan" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Spanish" lang="es" hreflang="es" data-title="Wikipedia:PetScan" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Basque" lang="eu" hreflang="eu" data-title="Wikipedia:PetScan" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Wikip%C3%A9dia:Petscan" title="Wikipédia:Petscan – French" lang="fr" hreflang="fr" data-title="Wikipédia:Petscan" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Aiuto:PetScan" title="Aiuto:PetScan – Italian" lang="it" hreflang="it" data-title="Aiuto:PetScan" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Vicipaedia:PetScan" title="Vicipaedia:PetScan – Latin" lang="la" hreflang="la" data-title="Vicipaedia:PetScan" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Wikip%C3%A9dia:PetScan" title="Wikipédia:PetScan – Hungarian" lang="hu" hreflang="hu" data-title="Wikipédia:PetScan" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Japanese" lang="ja" hreflang="ja" data-title="Wikipedia:PetScan" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Polish" lang="pl" hreflang="pl" data-title="Wikipedia:PetScan" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%92%D0%B8%D0%BA%D0%B8%D0%BF%D0%B5%D0%B4%D0%B8%D1%8F:PetScan" title="Википедия:PetScan – Russian" lang="ru" hreflang="ru" data-title="Википедия:PetScan" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Finnish" lang="fi" hreflang="fi" data-title="Wikipedia:PetScan" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%B5%E0%AE%BF%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%BF%E0%AE%AA%E0%AF%8D%E0%AE%AA%E0%AF%80%E0%AE%9F%E0%AE%BF%E0%AE%AF%E0%AE%BE:%E0%AE%AA%E0%AF%86%E0%AE%9F%E0%AF%8D%E0%AE%B8%E0%AF%8D%E0%AE%95%E0%AF%87%E0%AE%A9%E0%AF%8D" title="விக்கிப்பீடியா:பெட்ஸ்கேன் – Tamil" lang="ta" hreflang="ta" data-title="விக்கிப்பீடியா:பெட்ஸ்கேன்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%92%D1%96%D0%BA%D1%96%D0%BF%D0%B5%D0%B4%D1%96%D1%8F:PetScan" title="Вікіпедія:PetScan – Ukrainian" lang="uk" hreflang="uk" data-title="Вікіпедія:PetScan" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Wikipedia:PetScan" title="Wikipedia:PetScan – Chinese" lang="zh" hreflang="zh" data-title="Wikipedia:PetScan" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q56723771#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" 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id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=Wikipedia:CatScan&redirect=no" class="mw-redirect" title="Wikipedia:CatScan">Wikipedia:CatScan</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Wikimedia tool for searching categories</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For instructions, see the <a href="https://meta.wikimedia.org/wiki/PetScan/en" class="extiw" title="m:PetScan/en">Manual for PetScan</a> (on Meta-Wiki). To link to PetScan queries, see <a href="/wiki/Template:PetScan" title="Template:PetScan">Template:PetScan</a>.</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">"WP:PET" redirects here. For the essay on grammar conventions and civility, see <a href="/wiki/Wikipedia:No_pet_peeve_wars" title="Wikipedia:No pet peeve wars">Wikipedia:No pet peeve wars</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1252059228">.mw-parser-output .module-shortcutboxplain{float:right;margin:0 0 0 1em;border:1px solid var(--border-color-base,#a2a9b1);background-color:var(--background-color-base,#fff);padding:0.3em 0.6em 0.2em 0.6em;text-align:center;font-size:85%}.mw-parser-output .module-shortcutboxleft{float:left;margin:0 1em 0 0}.mw-parser-output .module-shortcutlist{display:inline-block;border-bottom:1px solid var(--border-color-base,#a2a9b1);margin-bottom:0.2em}.mw-parser-output .module-shortcutboxplain ul{font-weight:bold}.mw-parser-output .module-shortcutanchordiv{position:relative;top:-3em}.mw-parser-output li .module-shortcutanchordiv{float:right}.mw-parser-output .mbox-imageright .module-shortcutboxplain{padding:0.4em 1em 0.4em 1em;line-height:1.3;margin:0}</style><div class="module-shortcutanchordiv"><span id="WP:PET"></span><span id="WP:PETSCAN"></span><span id="WP:CATSCAN"></span></div><div class="module-shortcutboxplain noprint" role="note"><div class="module-shortcutlist"><a href="/wiki/Wikipedia:Shortcut" title="Wikipedia:Shortcut">Shortcuts</a></div><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:PET&redirect=no">WP:PET</a></span></li><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:PETSCAN&redirect=no">WP:PETSCAN</a></span></li><li><span class="plainlinks"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:CATSCAN&redirect=no">WP:CATSCAN</a></span></li></ul></div></div> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><span class="plainlinks clickbutton"><a rel="nofollow" class="external text" href="https://petscan.wmflabs.org/"><span class="mw-ui-button mw-ui-big mw-ui-progressive">Launch PetScan</span></a></span></div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Petscan</caption><tbody><tr><td colspan="2" class="infobox-image logo"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:PetScan_sports_players.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/PetScan_sports_players.png/220px-PetScan_sports_players.png" decoding="async" width="220" height="178" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3e/PetScan_sports_players.png/330px-PetScan_sports_players.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3e/PetScan_sports_players.png/440px-PetScan_sports_players.png 2x" data-file-width="783" data-file-height="632"/></a></span><div class="infobox-caption">Output from article search</div></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Original author(s)</a></th><td class="infobox-data"><a href="/wiki/User:Magnus_Manske" title="User:Magnus Manske">Magnus Manske</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Repository_(version_control)" title="Repository (version control)">Repository</a></th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://github.com/magnusmanske/petscan_rs">github<wbr/>.com<wbr/>/magnusmanske<wbr/>/petscan<wbr/>_rs</a></span></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Written in</th><td class="infobox-data"><a href="/wiki/Rust" title="Rust">Rust</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;">Website</th><td class="infobox-data"><span class="url"><a rel="nofollow" class="external text" href="https://petscan.wmflabs.org/">petscan<wbr/>.wmflabs<wbr/>.org</a></span></td></tr></tbody></table> <p><b>PetScan</b> (previously <b>CatScan</b>) is an external tool that searches an article category (and its subcategories) according to specified criteria to find articles, stubs, images, and categories. It can also be used for finding all articles that belong to two specified categories (the intersection). CatScan was developed by the German Wikipedian <a href="https://de.wikipedia.org/wiki/Benutzer:Duesentrieb" class="extiw" title="de:Benutzer:Duesentrieb">Duesentrieb</a> and is run on <a href="https://wikitech.wikimedia.org/wiki/Portal:Cloud_VPS" class="extiw" title="wikitech:Portal:Cloud VPS">Cloud VPS</a>, as part of Wikimedia Foundation's cloud computing environment.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The tool has been rewritten three times by <a href="/wiki/User:Magnus_Manske" title="User:Magnus Manske">Magnus Manske</a>, first in <a href="/wiki/PHP" title="PHP">PHP</a>, then in <a href="/wiki/C%2B%2B" title="C++">C++</a>, finally in <a href="/wiki/Rust_(programming_language)" title="Rust (programming language)">Rust</a>. </p> <div class="center" style="width:auto; margin-left:auto; margin-right:auto;"><span class="plainlinks clickbutton"><a class="external text" href="https://en.wikipedia.org/wiki/Wikipedia:WikiProject_Orphanage/Petscan"><span class="mw-ui-button mw-ui-big mw-ui-progressive">PetScan Documentation</span></a></span></div> <meta property="mw:PageProp/toc"/> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Resources" data-mw-thread-id="h-Resources"><span data-mw-comment-start="" id="h-Resources"></span>Resources<span data-mw-comment-end="h-Resources"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:PetScan&action=edit&section=1" title="Edit section: Resources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="https://meta.wikimedia.org/wiki/PetScan/en" class="extiw" title="m:PetScan/en">Instructions</a></li> <li><a rel="nofollow" class="external text" href="https://github.com/magnusmanske/petscan_rs">GitHub repository</a></li> <li><a rel="nofollow" class="external text" href="https://github.com/magnusmanske/petscan_rs/issues">GitHub issues (bug tracker)</a></li> <li><a class="external text" href="https://grafana-labs.wikimedia.org/d/000000018/labs-project-board?orgId=1&var-project=petscan&var-server=All">Grafana metrics</a></li> <li><a href="https://meta.wikimedia.org/wiki/User:Duesentrieb/CatScan" class="extiw" title="m:User:Duesentrieb/CatScan">m:User:Duesentrieb/CatScan</a> - About page</li> <li><a href="/wiki/Template:PetScan" title="Template:PetScan">Template:PetScan</a> - "Scan" template that automatically generates a link to a PetScan search.</li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="Uses_and_ideas" data-mw-thread-id="h-Uses_and_ideas"><span data-mw-comment-start="" id="h-Uses_and_ideas"></span>Uses and ideas<span data-mw-comment-end="h-Uses_and_ideas"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:PetScan&action=edit&section=2" title="Edit section: Uses and ideas"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A few examples of how the English Wikipedia uses PetScan: </p> <ul><li>finding articles for deletion sorting, <i><a class="external text" href="https://en.wikipedia.org/w/index.php?title=Wikipedia:WikiProject_Deletion_sorting/Comics_and_animation&oldid=226140246">example</a></i></li> <li>finding articles for an educational project (class): search for stubs within a <a href="/wiki/Wikipedia:CATEGORY" class="mw-redirect" title="Wikipedia:CATEGORY">category</a> corresponding to the class subject</li> <li>finding certain articles with a certain template, e.g. featured articles containing the template <span class="nowrap">{{</span><a href="/wiki/Template:Citation_needed" title="Template:Citation needed">citation needed</a><span class="nowrap">}}</span> (see box below)</li></ul> <style data-mw-deduplicate="TemplateStyles:r1034237262">.mw-parser-output .stack{box-sizing:border-box}.mw-parser-output .stack>div{margin:1px;overflow:hidden}@media all and (min-width:720px){.mw-parser-output .stack-clear-left{float:left;clear:left}.mw-parser-output .stack-clear-right{float:right;clear:right}.mw-parser-output .stack-left{float:left}.mw-parser-output .stack-right{float:right}.mw-parser-output .stack-margin-clear-left{float:left;clear:left;margin-right:1em}.mw-parser-output .stack-margin-clear-right{float:right;clear:right;margin-left:1em}.mw-parser-output .stack-margin-left{float:left;margin-right:1em}.mw-parser-output .stack-margin-right{float:right;margin-left:1em}}</style><div class="stack mw-stack stack-left"><div> <table class="petscan" style="border: 1px solid var(--border-color-subtle,#a2a9b1); background-color: var(--background-color-neutral,#f8f9fa); margin: 0.5em 0 0.5em 1em; padding: 0.2em; float: right; clear: right; font-size: 88%; line-height: 1.5em; width: 22em;"> <tbody><tr> <td><figure class="mw-halign-left" typeof="mw:File"><a href="/wiki/File:HILLBLU_lente.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/HILLBLU_lente.png/25px-HILLBLU_lente.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/HILLBLU_lente.png/38px-HILLBLU_lente.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a7/HILLBLU_lente.png/50px-HILLBLU_lente.png 2x" data-file-width="149" data-file-height="149"/></a><figcaption></figcaption></figure></td> <td><b><a rel="nofollow" class="external text" href="https://petscan.wmcloud.org/?language=en&project=wikipedia&depth=1&categories=Featured+articles&templates_any=citation+needed">Featured articles needing citations</a></b><br/><i> <small></small></i> <p class="mw-empty-elt"> </p> </td></tr></tbody></table></div></div> <div style="clear:both;" class=""></div> <ul><li>find short articles to expand – For example, Category tab: <i>Aviation stubs</i>; Output tab: <i>Sort:</i> (x) by size.</li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 id="See_also" data-mw-thread-id="h-See_also"><span data-mw-comment-start="" id="h-See_also"></span>See also<span data-mw-comment-end="h-See_also"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Wikipedia:PetScan&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Wikipedia:Category_intersection" title="Wikipedia:Category intersection">Wikipedia:Category intersection</a></li> <li><a href="/wiki/Wikipedia:Categorization" title="Wikipedia:Categorization">Wikipedia:Categorization</a></li> <li><a href="/wiki/Help:Category" title="Help:Category">Help:Category</a></li></ul> <div class="mw-heading mw-heading2 ext-discussiontools-init-section"><h2 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