{"id":214,"date":"2021-12-23T07:06:00","date_gmt":"2021-12-23T07:06:00","guid":{"rendered":"https:\/\/hamzakarim.com\/blog\/?p=214"},"modified":"2024-10-16T07:54:44","modified_gmt":"2024-10-16T07:54:44","slug":"what-is-the-purpose-of-captcha-technology-how-does-it-work","status":"publish","type":"post","link":"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/","title":{"rendered":"What&#8217;s The Purpose Of CAPTCHA Technology, &#038; How Does It Work?"},"content":{"rendered":"<p>As per the internet record, approximately 200 million captcha tests are completed online every day. If you&#8217;ve not got a captcha test on your website, you need to know how it can be beneficial for your business or blog.<\/p>\r\n<!-- \/wp:post-content -->\r\n\r\n<!-- wp:heading -->\r\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#What_Is_A_Captcha\" >What Is A Captcha?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#What_Are_CAPTCHAs_Used_For_Websites_Or_Blogs\" >What Are CAPTCHAs Used For Websites Or Blogs?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#How_Does_CAPTCHA_Work\" >How Does CAPTCHA Work?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#What_Are_The_Benefits_Of_Captcha\" >What Are The Benefits Of Captcha?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#_CAPTCHAs_Types\" >\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0CAPTCHA&#8217;s Types<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/#How_Do_I_Add_A_Captcha_Form_To_My_Website\" >How Do I Add A Captcha Form To My Website?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_A_Captcha\"><\/span><strong>What Is A Captcha?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>The word captcha stands for &#8216;wholly automated public Turing&#8217; test to tell computers and humans apart. <strong>Captchas tools<\/strong> you can use to find out the difference between real users and automated users. CAPTCHA\u2019s challenges are difficult to perform for computers.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><span class=\"ez-toc-section\" id=\"What_Are_CAPTCHAs_Used_For_Websites_Or_Blogs\"><\/span><strong>What Are CAPTCHAs Used For Websites Or Blogs?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>CAPTCHAs are used by any website or blog that wants to restrict usage by bots. Its specific uses include;<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h3><strong>Maintaining Poll Accuracy<\/strong><\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>CAPTCHAs can prevent poll<strong>\u00a0angles<\/strong>\u00a0by ensuring that a human enters each vote. It makes the time required for each franchise.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Limiting Registration For Services<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>CAPTCHAs prevent bots from spamming registration systems to create fake accounts. Its particular account restriction precludes the waste of service resources and reduces the chances of spamming.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Preventing Ticket Inflation<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Ticketing systems use in the CAPTCHA to limit scalpers from purchasing large numbers of resale tickets. It helps to prevent false registrations as well.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Preventing False Comments<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>CAPTCHAs can prevent bots from spamming messages, contact forms, or review sites. <strong>CAPTCHA\u2019s<\/strong> extra step also helps to reduce online social harassment.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h2><span class=\"ez-toc-section\" id=\"How_Does_CAPTCHA_Work\"><\/span><strong>How Does CAPTCHA Work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>CAPTCHAs work by providing information to a user. <strong>Traditional CAPTCHA<\/strong> provided overlapping letters and numbers. The distortion of the letters made it difficult for bots to interpret the text and prevented access until and unless the characters will be verified.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>This CAPTCHA type relies on a human&#8217;s ability. It will help to generalize and recognize novel patterns. In contrast, bots can often only follow set marks and characters.\u00a0Since CAPTCHA was introduced, bots are better able to identify <strong>traditional CAPTCHAs<\/strong> with algorithms trained in pattern recognition. Due to development, newer CAPTCHA methods are based on more complex tests.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><span class=\"ez-toc-section\" id=\"What_Are_The_Benefits_Of_Captcha\"><\/span><strong>What Are The Benefits Of Captcha?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Essentially captchas detect hackers from abusing online services. It has the functional capability to block robot software from submitting fake online requests. Captcha tests can be used in various factors, such as;<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n<li>Protect the integrity of online polls by stopping hackers from using robots to send incorrect responses.<\/li>\r\n<li>Stop brute force attacks on online accounts in which hackers repeatedly try to log in using hundreds of different passwords.<\/li>\r\n<li>Prevent hackers from signing up for multiple email accounts\u00a0<\/li>\r\n<li>Stop cybercriminals spamming blogs or news content pages with dodgy comments and links to other websites.<\/li>\r\n<li>Prevent ticket touts from using robots for bulking buy tickets\u00a0<\/li>\r\n<li>To make online shopping more secure and safe.\u00a0<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:heading -->\r\n<h2><span class=\"ez-toc-section\" id=\"_CAPTCHAs_Types\"><\/span>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0<strong>CAPTCHA&#8217;s Types<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Modern CAPTCHAs fall into three main categories such as;<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n<li>Text-based CAPTCHAs<\/li>\r\n<li>Image-based CAPTCHAs<\/li>\r\n<li>Audio-based CAPTCHAs<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Text-based CAPTCHAs<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Text-based CAPTCHAs are the way in which human beings will verify via word code. Some <strong>text-based CAPTCHAs<\/strong> also include variations in capitalization. The CAPTCHA presents these characters that are alienated and requires interpretation. Alienation can involve scaling, rotation, and distorting characters. Although alienation protects against bots with insufficient text recognition algorithms, somehow, it can also be difficult for humans to interpret it correctly.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph \/-->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Text-based CAPTCHA Patterns<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Techniques for creating text-based CAPTCHAs include;<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:list -->\r\n<ul>\r\n<li>Gimpy<\/li>\r\n<li>EZ-Gimpy<\/li>\r\n<li>Gimpy-r<\/li>\r\n<li>Simard&#8217;s HIP<\/li>\r\n<\/ul>\r\n<!-- \/wp:list -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>CAPTCHA Image<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Image-based CAPTCHAs replace text-based ones. These <strong>CAPTCHAs<\/strong> use graphic pictures, such as photos of animals, shapes, scenes, etc. Image-based CAPTCHAs require their users to select images or identify pictures that don&#8217;t fit with the theme.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Audio CAPTCHA<\/strong><\/h3>\r\n<p>It is an alternative that grants accessibility to visually impaired users. Audio CAPTCHAs present an audio recording of a series of letters or numbers that a user enters from background noise.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph \/-->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Math Or Word Problems<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>Some CAPTCHA mechanisms require solving a mathematical problem. Asking the user to type the missing word in a sentence or complete a sequence of several related terms.\u00a0<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<h3><strong>Social Media Sign-In<\/strong><\/h3>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>A popular alternative to <strong>CAPTCHA<\/strong> requires users to sign in using a social profile. The user&#8217;s details will be automatically filled by sign-on on Facebook, Google, or LinkedIn social media websites. It is a convenient registration mechanism.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2><span class=\"ez-toc-section\" id=\"How_Do_I_Add_A_Captcha_Form_To_My_Website\"><\/span><strong>How Do I Add A Captcha Form To My Website?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>You can add a captcha plugin to your site if your website is based on WordPress. There are many options in the WordPress plugin directory, but you&#8217;ll want to choose one that has been updated recently and has a decent number of active installations.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>For websites, you might need tech experience to add a captcha in the form of HTML knowledge. If your business has its web development team, then they can do it quickly. Google offers developers detailed instructions to install a reCAPTCHA free of cost.<\/p>\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n<p>As we&#8217;ve seen, CAPTCHAs are an essential part of the online ecosystem. Without CAPTCHAs, malicious hackers would be able to create thousands of accounts for spamming. <strong>CAPTCHA<\/strong> creators have done a lot to make them as non-intrusive as possible for ordinary people.<\/p>\r\n<!-- \/wp:paragraph -->","protected":false},"excerpt":{"rendered":"<p>As per the internet record, approximately 200 million captcha tests are completed online every day. If you&#8217;ve not got a captcha test on your website, you need to know how it can be beneficial for your business or blog. What Is A Captcha? The word captcha stands for &#8216;wholly automated public Turing&#8217; test to tell [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":215,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hosting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What&#039;s The Purpose Of CAPTCHA Technology, &amp; How Does It Work<\/title>\n<meta name=\"description\" content=\"Let&#039;s learn how CAPTCHAs prevent and reduce the chances of spamming registration systems to create fake accounts on your website\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pakchamp.com\/blog\/what-is-the-purpose-of-captcha-technology-how-does-it-work\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What&#039;s The Purpose Of CAPTCHA Technology, &amp; 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